Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure
Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Z...
Ausführliche Beschreibung
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| Autor*in: |
Zang, M.C. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) - Cutts, Joshua ELSEVIER, 2021, Amsterdam |
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| Übergeordnetes Werk: |
volume:840 ; year:2022 ; day:18 ; month:04 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.msea.2022.142952 |
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ELV057260745 |
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| 245 | 1 | 0 | |a Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure |
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| 520 | |a Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. | ||
| 520 | |a Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. | ||
| 650 | 7 | |a Equiaxed microstructure |2 Elsevier | |
| 650 | 7 | |a Cryogenic tensile properties |2 Elsevier | |
| 650 | 7 | |a Deformation mechanism |2 Elsevier | |
| 650 | 7 | |a Near α-Ti alloy |2 Elsevier | |
| 700 | 1 | |a Niu, H.Z. |4 oth | |
| 700 | 1 | |a Yu, J.S. |4 oth | |
| 700 | 1 | |a Zhang, H.R. |4 oth | |
| 700 | 1 | |a Zhang, T.B. |4 oth | |
| 700 | 1 | |a Zhang, D.L. |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Cutts, Joshua ELSEVIER |t Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) |d 2021 |g Amsterdam |w (DE-627)ELV007117167 |
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10.1016/j.msea.2022.142952 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001776.pica (DE-627)ELV057260745 (ELSEVIER)S0921-5093(22)00359-8 DE-627 ger DE-627 rakwb eng 570 VZ Zang, M.C. verfasserin aut Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Equiaxed microstructure Elsevier Cryogenic tensile properties Elsevier Deformation mechanism Elsevier Near α-Ti alloy Elsevier Niu, H.Z. oth Yu, J.S. oth Zhang, H.R. oth Zhang, T.B. oth Zhang, D.L. oth Enthalten in Elsevier Cutts, Joshua ELSEVIER Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) 2021 Amsterdam (DE-627)ELV007117167 volume:840 year:2022 day:18 month:04 pages:0 https://doi.org/10.1016/j.msea.2022.142952 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 840 2022 18 0418 0 |
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10.1016/j.msea.2022.142952 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001776.pica (DE-627)ELV057260745 (ELSEVIER)S0921-5093(22)00359-8 DE-627 ger DE-627 rakwb eng 570 VZ Zang, M.C. verfasserin aut Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Equiaxed microstructure Elsevier Cryogenic tensile properties Elsevier Deformation mechanism Elsevier Near α-Ti alloy Elsevier Niu, H.Z. oth Yu, J.S. oth Zhang, H.R. oth Zhang, T.B. oth Zhang, D.L. oth Enthalten in Elsevier Cutts, Joshua ELSEVIER Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) 2021 Amsterdam (DE-627)ELV007117167 volume:840 year:2022 day:18 month:04 pages:0 https://doi.org/10.1016/j.msea.2022.142952 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 840 2022 18 0418 0 |
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10.1016/j.msea.2022.142952 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001776.pica (DE-627)ELV057260745 (ELSEVIER)S0921-5093(22)00359-8 DE-627 ger DE-627 rakwb eng 570 VZ Zang, M.C. verfasserin aut Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Equiaxed microstructure Elsevier Cryogenic tensile properties Elsevier Deformation mechanism Elsevier Near α-Ti alloy Elsevier Niu, H.Z. oth Yu, J.S. oth Zhang, H.R. oth Zhang, T.B. oth Zhang, D.L. oth Enthalten in Elsevier Cutts, Joshua ELSEVIER Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) 2021 Amsterdam (DE-627)ELV007117167 volume:840 year:2022 day:18 month:04 pages:0 https://doi.org/10.1016/j.msea.2022.142952 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 840 2022 18 0418 0 |
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10.1016/j.msea.2022.142952 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001776.pica (DE-627)ELV057260745 (ELSEVIER)S0921-5093(22)00359-8 DE-627 ger DE-627 rakwb eng 570 VZ Zang, M.C. verfasserin aut Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Equiaxed microstructure Elsevier Cryogenic tensile properties Elsevier Deformation mechanism Elsevier Near α-Ti alloy Elsevier Niu, H.Z. oth Yu, J.S. oth Zhang, H.R. oth Zhang, T.B. oth Zhang, D.L. oth Enthalten in Elsevier Cutts, Joshua ELSEVIER Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) 2021 Amsterdam (DE-627)ELV007117167 volume:840 year:2022 day:18 month:04 pages:0 https://doi.org/10.1016/j.msea.2022.142952 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 840 2022 18 0418 0 |
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10.1016/j.msea.2022.142952 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001776.pica (DE-627)ELV057260745 (ELSEVIER)S0921-5093(22)00359-8 DE-627 ger DE-627 rakwb eng 570 VZ Zang, M.C. verfasserin aut Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. Equiaxed microstructure Elsevier Cryogenic tensile properties Elsevier Deformation mechanism Elsevier Near α-Ti alloy Elsevier Niu, H.Z. oth Yu, J.S. oth Zhang, H.R. oth Zhang, T.B. oth Zhang, D.L. oth Enthalten in Elsevier Cutts, Joshua ELSEVIER Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) 2021 Amsterdam (DE-627)ELV007117167 volume:840 year:2022 day:18 month:04 pages:0 https://doi.org/10.1016/j.msea.2022.142952 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 840 2022 18 0418 0 |
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Enthalten in Generation of 3X FLAG-tagged human embryonic stem cell (hESC) line to study WNT-induced β-catenin DNA interactions (HVRDe009-A-2) Amsterdam volume:840 year:2022 day:18 month:04 pages:0 |
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cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure |
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Cryogenic tensile properties and deformation behavior of a fine-grained near alpha titanium alloy with an equiaxed microstructure |
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Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. |
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Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. |
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Different from previous research works on cryogenic titanium alloys with a lamellar microstructure, this study focused on cryogenic tensile properties and the related deformation mechanism of a fine-grained near alpha titanium alloy of equiaxed microstructure. The fine-grained equiaxed Ti–3Al–3Mo–3Zr alloy exhibited a remarkably enhanced cryogenic tensile strength until 20 K, but cryogenic ductility decreased sharply as temperature drops. Ultimate tensile strength jumped from 740 MPa at 298 K to 1290 MPa at 77 K and to 1535 MPa at 20 K, while elongation-to-fracture dropped from 20.0% to 12.5% and to 4.0%, respectively. Sharp decline of cryogenic ductility was considered to be directly influenced by the high-angle misoriented equiaxed α-Ti grains. Because dislocation motion got much difficult and twinning could not operate extensively in the fine equiaxed microstructure at cryogenic temperatures. Besides, slip and twinning could not transfer across α-Ti grain boundaries or α/β phase interfaces, resulting in premature cracking. Different from deformation of traditional counterpart with a lamellar microstructure, prismatic and basal slips invariably dominated at 298, 77 and 20 K. Only in certain α-Ti grains whose parallel to loading direction, {10 1 ‾ 2} type tension twins operated at 77 and 20 K. The present fine-grained near α-Ti alloy with an equiaxed microstructure is suggested to be applied at temperature not lower than 77 K. |
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