The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals
Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the S...
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Gespeichert in:
| Autor*in: |
MacKay, Rebecca A. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1982 |
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| Schlagwörter: |
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| Anmerkung: |
© American Society for Metals and the Metallurgical Society of AIME 1982 |
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| Übergeordnetes Werk: |
Enthalten in: Metallurgical transactions. A, Physical metallurgy and materials science - Springer-Verlag, 1975, 13(1982), 10 vom: Okt., Seite 1747-1754 |
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| Übergeordnetes Werk: |
volume:13 ; year:1982 ; number:10 ; month:10 ; pages:1747-1754 |
| Links: |
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| DOI / URN: |
10.1007/BF02647830 |
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OLC2053946091 |
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| 245 | 1 | 0 | |a The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals |
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| 520 | |a Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. | ||
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10.1007/BF02647830 doi (DE-627)OLC2053946091 (DE-He213)BF02647830-p DE-627 ger DE-627 rakwb eng 670 530 VZ MacKay, Rebecca A. verfasserin aut The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Society for Metals and the Metallurgical Society of AIME 1982 Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. Slip System Creep Rate Stress Rupture Primary Creep Lattice Rotation Maier, Ralph D. aut Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science Springer-Verlag, 1975 13(1982), 10 vom: Okt., Seite 1747-1754 (DE-627)129429058 (DE-600)192156-3 (DE-576)01480204X 0026-086X nnns volume:13 year:1982 number:10 month:10 pages:1747-1754 https://doi.org/10.1007/BF02647830 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_62 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2020 GBV_ILN_2027 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4313 GBV_ILN_4319 AR 13 1982 10 10 1747-1754 |
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10.1007/BF02647830 doi (DE-627)OLC2053946091 (DE-He213)BF02647830-p DE-627 ger DE-627 rakwb eng 670 530 VZ MacKay, Rebecca A. verfasserin aut The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Society for Metals and the Metallurgical Society of AIME 1982 Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. Slip System Creep Rate Stress Rupture Primary Creep Lattice Rotation Maier, Ralph D. aut Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science Springer-Verlag, 1975 13(1982), 10 vom: Okt., Seite 1747-1754 (DE-627)129429058 (DE-600)192156-3 (DE-576)01480204X 0026-086X nnns volume:13 year:1982 number:10 month:10 pages:1747-1754 https://doi.org/10.1007/BF02647830 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_62 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2020 GBV_ILN_2027 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4313 GBV_ILN_4319 AR 13 1982 10 10 1747-1754 |
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10.1007/BF02647830 doi (DE-627)OLC2053946091 (DE-He213)BF02647830-p DE-627 ger DE-627 rakwb eng 670 530 VZ MacKay, Rebecca A. verfasserin aut The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Society for Metals and the Metallurgical Society of AIME 1982 Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. Slip System Creep Rate Stress Rupture Primary Creep Lattice Rotation Maier, Ralph D. aut Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science Springer-Verlag, 1975 13(1982), 10 vom: Okt., Seite 1747-1754 (DE-627)129429058 (DE-600)192156-3 (DE-576)01480204X 0026-086X nnns volume:13 year:1982 number:10 month:10 pages:1747-1754 https://doi.org/10.1007/BF02647830 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_62 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2020 GBV_ILN_2027 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4313 GBV_ILN_4319 AR 13 1982 10 10 1747-1754 |
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10.1007/BF02647830 doi (DE-627)OLC2053946091 (DE-He213)BF02647830-p DE-627 ger DE-627 rakwb eng 670 530 VZ MacKay, Rebecca A. verfasserin aut The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Society for Metals and the Metallurgical Society of AIME 1982 Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. Slip System Creep Rate Stress Rupture Primary Creep Lattice Rotation Maier, Ralph D. aut Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science Springer-Verlag, 1975 13(1982), 10 vom: Okt., Seite 1747-1754 (DE-627)129429058 (DE-600)192156-3 (DE-576)01480204X 0026-086X nnns volume:13 year:1982 number:10 month:10 pages:1747-1754 https://doi.org/10.1007/BF02647830 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_62 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2020 GBV_ILN_2027 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4313 GBV_ILN_4319 AR 13 1982 10 10 1747-1754 |
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10.1007/BF02647830 doi (DE-627)OLC2053946091 (DE-He213)BF02647830-p DE-627 ger DE-627 rakwb eng 670 530 VZ MacKay, Rebecca A. verfasserin aut The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals 1982 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Society for Metals and the Metallurgical Society of AIME 1982 Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. Slip System Creep Rate Stress Rupture Primary Creep Lattice Rotation Maier, Ralph D. aut Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science Springer-Verlag, 1975 13(1982), 10 vom: Okt., Seite 1747-1754 (DE-627)129429058 (DE-600)192156-3 (DE-576)01480204X 0026-086X nnns volume:13 year:1982 number:10 month:10 pages:1747-1754 https://doi.org/10.1007/BF02647830 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_62 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2020 GBV_ILN_2027 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4313 GBV_ILN_4319 AR 13 1982 10 10 1747-1754 |
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Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science 13(1982), 10 vom: Okt., Seite 1747-1754 volume:13 year:1982 number:10 month:10 pages:1747-1754 |
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Enthalten in Metallurgical transactions. A, Physical metallurgy and materials science 13(1982), 10 vom: Okt., Seite 1747-1754 volume:13 year:1982 number:10 month:10 pages:1747-1754 |
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the influence of orientation on the stress rupture properties of nickel-base superalloy single crystals |
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The influence of orientation on the stress rupture properties of nickel-base superalloy single crystals |
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Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. © American Society for Metals and the Metallurgical Society of AIME 1982 |
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Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. © American Society for Metals and the Metallurgical Society of AIME 1982 |
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Abstract The influence of orientation on the stress rapture properties of MAR-M247 single crystals was studied. Stress rupture tests were performed at 724 MPa and 774 °C where the effect of anisotropy is prominent. The mechanical behavior of the single crystals was rationalized on the basis of the Schmid factors for the operative slip systems and the lattice rotations which the crystals underwent during deformation. The stress rupture lives at 774 °C were found to be greatly influenced by the lattice rotations required to produce intersecting slip, because second-stage creep does not begin until after the onset of intersecting slip. Crystals which required large rotations to become oriented for intersecting slip exhibited a large primary creep strain, a large effective stress level at the onset of steady-state creep, and consequently, a short stress rupture life. Those crystals having orientations within about 25° of the [001] exhibited significantly longer lives when their orientations were closer to the [001]-[011] boundary of the stereographic triangle than to the [001]-[1l 1] boundary, because they required smaller rotations to produce intersecting slip and the onset of second-stage creep. Thus, the direction off the [001], as well as the number of degrees off the [001], has a major influence on the stress rapture lives of single crystals in this temperature regime. © American Society for Metals and the Metallurgical Society of AIME 1982 |
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