Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys
Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous t...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chattopadhyay, K. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2008 |
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| Schlagwörter: |
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| Anmerkung: |
© THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 |
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| Übergeordnetes Werk: |
Enthalten in: Metallurgical and materials transactions - Boston : Springer, 1975, 39(2008), 3 vom: 17. Jan., Seite 577-592 |
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| Übergeordnetes Werk: |
volume:39 ; year:2008 ; number:3 ; day:17 ; month:01 ; pages:577-592 |
| Links: |
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| DOI / URN: |
10.1007/s11661-007-9398-9 |
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SPR021368538 |
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| 520 | |a Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. | ||
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| 700 | 1 | |a Mitra, R. |4 aut | |
| 700 | 1 | |a Ray, K.K. |4 aut | |
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10.1007/s11661-007-9398-9 doi (DE-627)SPR021368538 (SPR)s11661-007-9398-9-e DE-627 ger DE-627 rakwb eng Chattopadhyay, K. verfasserin aut Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys 2008 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 Mitra, R. aut Ray, K.K. aut Enthalten in Metallurgical and materials transactions Boston : Springer, 1975 39(2008), 3 vom: 17. Jan., Seite 577-592 (DE-627)325571996 (DE-600)2037517-7 1543-1940 nnns volume:39 year:2008 number:3 day:17 month:01 pages:577-592 https://dx.doi.org/10.1007/s11661-007-9398-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 39 2008 3 17 01 577-592 |
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10.1007/s11661-007-9398-9 doi (DE-627)SPR021368538 (SPR)s11661-007-9398-9-e DE-627 ger DE-627 rakwb eng Chattopadhyay, K. verfasserin aut Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys 2008 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 Mitra, R. aut Ray, K.K. aut Enthalten in Metallurgical and materials transactions Boston : Springer, 1975 39(2008), 3 vom: 17. Jan., Seite 577-592 (DE-627)325571996 (DE-600)2037517-7 1543-1940 nnns volume:39 year:2008 number:3 day:17 month:01 pages:577-592 https://dx.doi.org/10.1007/s11661-007-9398-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 39 2008 3 17 01 577-592 |
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10.1007/s11661-007-9398-9 doi (DE-627)SPR021368538 (SPR)s11661-007-9398-9-e DE-627 ger DE-627 rakwb eng Chattopadhyay, K. verfasserin aut Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys 2008 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 Mitra, R. aut Ray, K.K. aut Enthalten in Metallurgical and materials transactions Boston : Springer, 1975 39(2008), 3 vom: 17. Jan., Seite 577-592 (DE-627)325571996 (DE-600)2037517-7 1543-1940 nnns volume:39 year:2008 number:3 day:17 month:01 pages:577-592 https://dx.doi.org/10.1007/s11661-007-9398-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 39 2008 3 17 01 577-592 |
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10.1007/s11661-007-9398-9 doi (DE-627)SPR021368538 (SPR)s11661-007-9398-9-e DE-627 ger DE-627 rakwb eng Chattopadhyay, K. verfasserin aut Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys 2008 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 Mitra, R. aut Ray, K.K. aut Enthalten in Metallurgical and materials transactions Boston : Springer, 1975 39(2008), 3 vom: 17. Jan., Seite 577-592 (DE-627)325571996 (DE-600)2037517-7 1543-1940 nnns volume:39 year:2008 number:3 day:17 month:01 pages:577-592 https://dx.doi.org/10.1007/s11661-007-9398-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 39 2008 3 17 01 577-592 |
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10.1007/s11661-007-9398-9 doi (DE-627)SPR021368538 (SPR)s11661-007-9398-9-e DE-627 ger DE-627 rakwb eng Chattopadhyay, K. verfasserin aut Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys 2008 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 Mitra, R. aut Ray, K.K. aut Enthalten in Metallurgical and materials transactions Boston : Springer, 1975 39(2008), 3 vom: 17. Jan., Seite 577-592 (DE-627)325571996 (DE-600)2037517-7 1543-1940 nnns volume:39 year:2008 number:3 day:17 month:01 pages:577-592 https://dx.doi.org/10.1007/s11661-007-9398-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 39 2008 3 17 01 577-592 |
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English |
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Enthalten in Metallurgical and materials transactions 39(2008), 3 vom: 17. Jan., Seite 577-592 volume:39 year:2008 number:3 day:17 month:01 pages:577-592 |
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Enthalten in Metallurgical and materials transactions 39(2008), 3 vom: 17. Jan., Seite 577-592 volume:39 year:2008 number:3 day:17 month:01 pages:577-592 |
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Oxide Scale Nb2O5 Mass Gain Isothermal Oxidation Hypereutectic Alloy |
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Metallurgical and materials transactions |
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Chattopadhyay, K. @@aut@@ Mitra, R. @@aut@@ Ray, K.K. @@aut@@ |
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The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. 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|
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Chattopadhyay, K. |
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Chattopadhyay, K. misc Oxide Scale misc Nb2O5 misc Mass Gain misc Isothermal Oxidation misc Hypereutectic Alloy Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys |
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Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys Oxide Scale (dpeaa)DE-He213 Nb2O5 (dpeaa)DE-He213 Mass Gain (dpeaa)DE-He213 Isothermal Oxidation (dpeaa)DE-He213 Hypereutectic Alloy (dpeaa)DE-He213 |
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misc Oxide Scale misc Nb2O5 misc Mass Gain misc Isothermal Oxidation misc Hypereutectic Alloy |
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misc Oxide Scale misc Nb2O5 misc Mass Gain misc Isothermal Oxidation misc Hypereutectic Alloy |
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Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys |
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Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys |
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Chattopadhyay, K. |
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Metallurgical and materials transactions |
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Chattopadhyay, K. |
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nonisothermal and isothermal oxidation behavior of nb-si-mo alloys |
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Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys |
| abstract |
Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 |
| abstractGer |
Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 |
| abstract_unstemmed |
Abstract The nonisothermal and isothermal oxidation behavior of arc-melted, hypereutectic Nb-19Si-5Mo, Nb-18Si-26Mo, and hypoeutectic Nb-13Si-4Mo, and Nb-12Si-15Mo ternary alloys have been investigated vis-à-vis that of Nb and Nb-10Si alloy. The nonisothermal studies carried out using simultaneous thermogravimetric and differential thermal analysis in the temperature range of 50 °C to 1300 °C using heating rates of 5 °C, 15 °C/min, 25 °C/min, and 40 °C/min have shown oxidation initiation at lower temperatures for slower heating rates and higher Mo content. Isothermal oxidation experiments have been carried out in dry air at 800 °C, 1000 °C, and 1150 °C for 24 hours and the kinetics have been examined by the power-law equation. The studies show that the ternary Nb-Si-Mo alloys undergo less mass gain compared to the Nb and the Nb-10Si alloy. The hypo- or hypereutectic character of the alloys controls the oxidation behavior at 800 °C, while the effect of Mo content is predominant at temperatures of 1000 °C to 1150 °C. X-ray diffraction and scanning electron microscopy (SEM) accompanied by energy dispersive X-ray analysis have shown that the oxide scales of all the alloys are made of $ Nb_{2} %$ O_{5} $ and $ SiO_{2} $. The beneficial effect of alloying with Mo is attributed to the improved sinterability of the oxide scale and increase in the activity of Si, which assists in the formation of a stable and continuous layer of $ SiO_{2} $ at the alloy-oxide interface. © THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2008 |
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3 |
| title_short |
Nonisothermal and Isothermal Oxidation Behavior of Nb-Si-Mo Alloys |
| url |
https://dx.doi.org/10.1007/s11661-007-9398-9 |
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| author2 |
Mitra, R. Ray, K.K. |
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Mitra, R. Ray, K.K. |
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325571996 |
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| doi_str |
10.1007/s11661-007-9398-9 |
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2024-07-03T22:07:23.775Z |
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| score |
7.3996525 |