Short-term flexural creep deformation in synroc-C
Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no...
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| Autor*in: |
Latella, B. A. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2003 |
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| Schlagwörter: |
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| Anmerkung: |
© Kluwer Academic Publishers 2003 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Kluwer Academic Publishers, 1966, 38(2003), 15 vom: Aug., Seite 3223-3231 |
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| Übergeordnetes Werk: |
volume:38 ; year:2003 ; number:15 ; month:08 ; pages:3223-3231 |
| Links: |
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| DOI / URN: |
10.1023/A:1025121601596 |
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| Katalog-ID: |
OLC2046282957 |
|---|
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| 520 | |a Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. | ||
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| 650 | 4 | |a Stress Exponent | |
| 650 | 4 | |a Creep Damage | |
| 650 | 4 | |a Tertiary Creep | |
| 700 | 1 | |a Liu, T. |4 aut | |
| 700 | 1 | |a Snowden, K. U. |4 aut | |
| 700 | 1 | |a Mehrtens, E. G. |4 aut | |
| 700 | 1 | |a Lumpkin, G. R. |4 aut | |
| 700 | 1 | |a Gan, B. K. |4 aut | |
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10.1023/A:1025121601596 doi (DE-627)OLC2046282957 (DE-He213)A:1025121601596-p DE-627 ger DE-627 rakwb eng 670 VZ Latella, B. A. verfasserin aut Short-term flexural creep deformation in synroc-C 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2003 Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. Cavitation Stress Range Stress Exponent Creep Damage Tertiary Creep Liu, T. aut Snowden, K. U. aut Mehrtens, E. G. aut Lumpkin, G. R. aut Gan, B. K. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 38(2003), 15 vom: Aug., Seite 3223-3231 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:38 year:2003 number:15 month:08 pages:3223-3231 https://doi.org/10.1023/A:1025121601596 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_100 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 38 2003 15 08 3223-3231 |
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10.1023/A:1025121601596 doi (DE-627)OLC2046282957 (DE-He213)A:1025121601596-p DE-627 ger DE-627 rakwb eng 670 VZ Latella, B. A. verfasserin aut Short-term flexural creep deformation in synroc-C 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2003 Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. Cavitation Stress Range Stress Exponent Creep Damage Tertiary Creep Liu, T. aut Snowden, K. U. aut Mehrtens, E. G. aut Lumpkin, G. R. aut Gan, B. K. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 38(2003), 15 vom: Aug., Seite 3223-3231 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:38 year:2003 number:15 month:08 pages:3223-3231 https://doi.org/10.1023/A:1025121601596 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_100 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 38 2003 15 08 3223-3231 |
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10.1023/A:1025121601596 doi (DE-627)OLC2046282957 (DE-He213)A:1025121601596-p DE-627 ger DE-627 rakwb eng 670 VZ Latella, B. A. verfasserin aut Short-term flexural creep deformation in synroc-C 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2003 Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. Cavitation Stress Range Stress Exponent Creep Damage Tertiary Creep Liu, T. aut Snowden, K. U. aut Mehrtens, E. G. aut Lumpkin, G. R. aut Gan, B. K. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 38(2003), 15 vom: Aug., Seite 3223-3231 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:38 year:2003 number:15 month:08 pages:3223-3231 https://doi.org/10.1023/A:1025121601596 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_100 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 38 2003 15 08 3223-3231 |
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10.1023/A:1025121601596 doi (DE-627)OLC2046282957 (DE-He213)A:1025121601596-p DE-627 ger DE-627 rakwb eng 670 VZ Latella, B. A. verfasserin aut Short-term flexural creep deformation in synroc-C 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2003 Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. Cavitation Stress Range Stress Exponent Creep Damage Tertiary Creep Liu, T. aut Snowden, K. U. aut Mehrtens, E. G. aut Lumpkin, G. R. aut Gan, B. K. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 38(2003), 15 vom: Aug., Seite 3223-3231 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:38 year:2003 number:15 month:08 pages:3223-3231 https://doi.org/10.1023/A:1025121601596 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_100 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 38 2003 15 08 3223-3231 |
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10.1023/A:1025121601596 doi (DE-627)OLC2046282957 (DE-He213)A:1025121601596-p DE-627 ger DE-627 rakwb eng 670 VZ Latella, B. A. verfasserin aut Short-term flexural creep deformation in synroc-C 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2003 Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. Cavitation Stress Range Stress Exponent Creep Damage Tertiary Creep Liu, T. aut Snowden, K. U. aut Mehrtens, E. G. aut Lumpkin, G. R. aut Gan, B. K. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 38(2003), 15 vom: Aug., Seite 3223-3231 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:38 year:2003 number:15 month:08 pages:3223-3231 https://doi.org/10.1023/A:1025121601596 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_100 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 38 2003 15 08 3223-3231 |
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Latella, B. A. @@aut@@ Liu, T. @@aut@@ Snowden, K. U. @@aut@@ Mehrtens, E. G. @@aut@@ Lumpkin, G. R. @@aut@@ Gan, B. K. @@aut@@ |
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short-term flexural creep deformation in synroc-c |
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Short-term flexural creep deformation in synroc-C |
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Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. © Kluwer Academic Publishers 2003 |
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Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. © Kluwer Academic Publishers 2003 |
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Abstract The flexural creep behaviour of synroc-C in an inert atmosphere was studied at temperatures of 860°C, 900°C and 940°C under constant-load conditions in four-point bending. Applied stresses ranged from 100 to 160 MPa. Individual creep curves show primary and secondary creep but little or no tertiary creep stage. The log of the creep rate was found to increase linearly with log of the applied stress at each temperature over the entire stress range. Analysis of the creep data using the Norton power-law function revealed that the stress exponent decreased from 3.3 ± 0.6 for the 860°C and 900°C data to 2.0 ± 0.2 for the 940°C data, and an activation energy of 440 ± 40 kJ/mol was obtained over the entire temperature and stress range. Comparative analysis with the theta-projection equation was found to adequately represent the data yielding an activation energy of 464 kJ/mol while also showing a trend for the stress exponent to decrease with increasing temperature. Microstructural examination revealed extensive cavitation on the tensile surface of the creep specimens subjected to higher stresses at 900°C and 940°C. Dynamic high temperature X-ray diffraction analysis indicated little change in the phase assemblage apart from a slight reduction in the amount of the hollandite phase at higher temperatures which was attributed to a minor amount of oxidation. The possible creep damage mechanism was explored with reference to creep test results and microstructural modifications and the implications of the observations are discussed. © Kluwer Academic Publishers 2003 |
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