Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders
The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows...
Ausführliche Beschreibung
Autor*in: |
de Oro Calderon, R. [verfasserIn] Lunzer, M. [verfasserIn] Wodak, I. [verfasserIn] Steinlechner, R. [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: International journal of refractory metals & hard materials - Amsterdam [u.a.] : Elsevier Science, 1995, 117 |
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Übergeordnetes Werk: |
volume:117 |
DOI / URN: |
10.1016/j.ijrmhm.2023.106411 |
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Katalog-ID: |
ELV065314743 |
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520 | |a The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. | ||
650 | 4 | |a WC-based cemented carbides | |
650 | 4 | |a Alternative binders | |
650 | 4 | |a FeMn-based binders | |
650 | 4 | |a Phase formation | |
650 | 4 | |a Sintering conditions | |
650 | 4 | |a Thermodynamic calculations | |
700 | 1 | |a Lunzer, M. |e verfasserin |4 aut | |
700 | 1 | |a Wodak, I. |e verfasserin |4 aut | |
700 | 1 | |a Steinlechner, R. |e verfasserin |4 aut | |
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10.1016/j.ijrmhm.2023.106411 doi (DE-627)ELV065314743 (ELSEVIER)S0263-4368(23)00311-6 DE-627 ger DE-627 rda eng 670 VZ 51.60 bkl 51.45 bkl de Oro Calderon, R. verfasserin aut Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations Lunzer, M. verfasserin aut Wodak, I. verfasserin aut Steinlechner, R. verfasserin aut Enthalten in International journal of refractory metals & hard materials Amsterdam [u.a.] : Elsevier Science, 1995 117 Online-Ressource (DE-627)320526348 (DE-600)2015219-X (DE-576)120883600 0263-4368 nnns volume:117 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 117 |
spelling |
10.1016/j.ijrmhm.2023.106411 doi (DE-627)ELV065314743 (ELSEVIER)S0263-4368(23)00311-6 DE-627 ger DE-627 rda eng 670 VZ 51.60 bkl 51.45 bkl de Oro Calderon, R. verfasserin aut Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations Lunzer, M. verfasserin aut Wodak, I. verfasserin aut Steinlechner, R. verfasserin aut Enthalten in International journal of refractory metals & hard materials Amsterdam [u.a.] : Elsevier Science, 1995 117 Online-Ressource (DE-627)320526348 (DE-600)2015219-X (DE-576)120883600 0263-4368 nnns volume:117 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 117 |
allfields_unstemmed |
10.1016/j.ijrmhm.2023.106411 doi (DE-627)ELV065314743 (ELSEVIER)S0263-4368(23)00311-6 DE-627 ger DE-627 rda eng 670 VZ 51.60 bkl 51.45 bkl de Oro Calderon, R. verfasserin aut Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations Lunzer, M. verfasserin aut Wodak, I. verfasserin aut Steinlechner, R. verfasserin aut Enthalten in International journal of refractory metals & hard materials Amsterdam [u.a.] : Elsevier Science, 1995 117 Online-Ressource (DE-627)320526348 (DE-600)2015219-X (DE-576)120883600 0263-4368 nnns volume:117 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 117 |
allfieldsGer |
10.1016/j.ijrmhm.2023.106411 doi (DE-627)ELV065314743 (ELSEVIER)S0263-4368(23)00311-6 DE-627 ger DE-627 rda eng 670 VZ 51.60 bkl 51.45 bkl de Oro Calderon, R. verfasserin aut Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations Lunzer, M. verfasserin aut Wodak, I. verfasserin aut Steinlechner, R. verfasserin aut Enthalten in International journal of refractory metals & hard materials Amsterdam [u.a.] : Elsevier Science, 1995 117 Online-Ressource (DE-627)320526348 (DE-600)2015219-X (DE-576)120883600 0263-4368 nnns volume:117 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 117 |
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10.1016/j.ijrmhm.2023.106411 doi (DE-627)ELV065314743 (ELSEVIER)S0263-4368(23)00311-6 DE-627 ger DE-627 rda eng 670 VZ 51.60 bkl 51.45 bkl de Oro Calderon, R. verfasserin aut Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations Lunzer, M. verfasserin aut Wodak, I. verfasserin aut Steinlechner, R. verfasserin aut Enthalten in International journal of refractory metals & hard materials Amsterdam [u.a.] : Elsevier Science, 1995 117 Online-Ressource (DE-627)320526348 (DE-600)2015219-X (DE-576)120883600 0263-4368 nnns volume:117 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 117 |
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de Oro Calderon, R. |
spellingShingle |
de Oro Calderon, R. ddc 670 bkl 51.60 bkl 51.45 misc WC-based cemented carbides misc Alternative binders misc FeMn-based binders misc Phase formation misc Sintering conditions misc Thermodynamic calculations Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders |
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670 VZ 51.60 bkl 51.45 bkl Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders WC-based cemented carbides Alternative binders FeMn-based binders Phase formation Sintering conditions Thermodynamic calculations |
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fundamental aspects of phase formation in wc-based cemented carbides containing femn-based binders |
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Fundamental aspects of phase formation in WC-based cemented carbides containing FeMn-based binders |
abstract |
The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. |
abstractGer |
The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. |
abstract_unstemmed |
The hardmetal industry is continuously seeking for (Co, Ni)-free binder alternatives. Several attempts have been made to use FeMn binders, Mn being a very effective austenite stabilizer. Substitution of Co binders for FeMn based binders comes along with many challenges such as: narrow carbon windows, evaporation of Mn during sintering or the formation of stable Mn-oxides. This work presents an overview on the phase formation in hardmetals with different carbon contents prepared from FeMn, FeMnSi and FeMnNi binders. Due to the efficient role of Mn as cementite stabilizer, it was not possible to avoid the presence of eta-carbides and cementite under the conditions studied, and samples with intermediate carbon contents presented both eta-carbides and cementite in the microstructure. Only after the addition of 25 wt% of Ni to the binder it was possible to observe materials with two phase microstructures. The challenges related to Mn evaporation and formation of stable oxides can be overcome by a proper selection of the starting materials and the sintering conditions. It is thus proved that the main challenge posed by these materials is the difficulty to obtain microstructures without detrimental phases. |
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