Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures
Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure dive...
Ausführliche Beschreibung
Autor*in: |
Zhikun Yin [verfasserIn] Zhichao Sun [verfasserIn] Long Huang [verfasserIn] Yu Wang [verfasserIn] Lijiao Yin [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Übergeordnetes Werk: |
In: International Journal of Lightweight Materials and Manufacture - KeAi Communications Co., Ltd., 2018, 6(2023), 1, Seite 25-32 |
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Übergeordnetes Werk: |
volume:6 ; year:2023 ; number:1 ; pages:25-32 |
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DOI / URN: |
10.1016/j.ijlmm.2022.09.004 |
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Katalog-ID: |
DOAJ080088147 |
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520 | |a Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. | ||
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10.1016/j.ijlmm.2022.09.004 doi (DE-627)DOAJ080088147 (DE-599)DOAJ0cb801d2d05d4662a2d7d8b4d8afb378 DE-627 ger DE-627 rakwb eng Zhikun Yin verfasserin aut Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure Technology T Zhichao Sun verfasserin aut Long Huang verfasserin aut Yu Wang verfasserin aut Lijiao Yin verfasserin aut In International Journal of Lightweight Materials and Manufacture KeAi Communications Co., Ltd., 2018 6(2023), 1, Seite 25-32 (DE-627)102225426X (DE-600)2929578-6 25888404 nnns volume:6 year:2023 number:1 pages:25-32 https://doi.org/10.1016/j.ijlmm.2022.09.004 kostenfrei https://doaj.org/article/0cb801d2d05d4662a2d7d8b4d8afb378 kostenfrei http://www.sciencedirect.com/science/article/pii/S2588840422000609 kostenfrei https://doaj.org/toc/2588-8404 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2023 1 25-32 |
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10.1016/j.ijlmm.2022.09.004 doi (DE-627)DOAJ080088147 (DE-599)DOAJ0cb801d2d05d4662a2d7d8b4d8afb378 DE-627 ger DE-627 rakwb eng Zhikun Yin verfasserin aut Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure Technology T Zhichao Sun verfasserin aut Long Huang verfasserin aut Yu Wang verfasserin aut Lijiao Yin verfasserin aut In International Journal of Lightweight Materials and Manufacture KeAi Communications Co., Ltd., 2018 6(2023), 1, Seite 25-32 (DE-627)102225426X (DE-600)2929578-6 25888404 nnns volume:6 year:2023 number:1 pages:25-32 https://doi.org/10.1016/j.ijlmm.2022.09.004 kostenfrei https://doaj.org/article/0cb801d2d05d4662a2d7d8b4d8afb378 kostenfrei http://www.sciencedirect.com/science/article/pii/S2588840422000609 kostenfrei https://doaj.org/toc/2588-8404 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2023 1 25-32 |
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10.1016/j.ijlmm.2022.09.004 doi (DE-627)DOAJ080088147 (DE-599)DOAJ0cb801d2d05d4662a2d7d8b4d8afb378 DE-627 ger DE-627 rakwb eng Zhikun Yin verfasserin aut Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure Technology T Zhichao Sun verfasserin aut Long Huang verfasserin aut Yu Wang verfasserin aut Lijiao Yin verfasserin aut In International Journal of Lightweight Materials and Manufacture KeAi Communications Co., Ltd., 2018 6(2023), 1, Seite 25-32 (DE-627)102225426X (DE-600)2929578-6 25888404 nnns volume:6 year:2023 number:1 pages:25-32 https://doi.org/10.1016/j.ijlmm.2022.09.004 kostenfrei https://doaj.org/article/0cb801d2d05d4662a2d7d8b4d8afb378 kostenfrei http://www.sciencedirect.com/science/article/pii/S2588840422000609 kostenfrei https://doaj.org/toc/2588-8404 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2023 1 25-32 |
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10.1016/j.ijlmm.2022.09.004 doi (DE-627)DOAJ080088147 (DE-599)DOAJ0cb801d2d05d4662a2d7d8b4d8afb378 DE-627 ger DE-627 rakwb eng Zhikun Yin verfasserin aut Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure Technology T Zhichao Sun verfasserin aut Long Huang verfasserin aut Yu Wang verfasserin aut Lijiao Yin verfasserin aut In International Journal of Lightweight Materials and Manufacture KeAi Communications Co., Ltd., 2018 6(2023), 1, Seite 25-32 (DE-627)102225426X (DE-600)2929578-6 25888404 nnns volume:6 year:2023 number:1 pages:25-32 https://doi.org/10.1016/j.ijlmm.2022.09.004 kostenfrei https://doaj.org/article/0cb801d2d05d4662a2d7d8b4d8afb378 kostenfrei http://www.sciencedirect.com/science/article/pii/S2588840422000609 kostenfrei https://doaj.org/toc/2588-8404 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2023 1 25-32 |
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10.1016/j.ijlmm.2022.09.004 doi (DE-627)DOAJ080088147 (DE-599)DOAJ0cb801d2d05d4662a2d7d8b4d8afb378 DE-627 ger DE-627 rakwb eng Zhikun Yin verfasserin aut Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure Technology T Zhichao Sun verfasserin aut Long Huang verfasserin aut Yu Wang verfasserin aut Lijiao Yin verfasserin aut In International Journal of Lightweight Materials and Manufacture KeAi Communications Co., Ltd., 2018 6(2023), 1, Seite 25-32 (DE-627)102225426X (DE-600)2929578-6 25888404 nnns volume:6 year:2023 number:1 pages:25-32 https://doi.org/10.1016/j.ijlmm.2022.09.004 kostenfrei https://doaj.org/article/0cb801d2d05d4662a2d7d8b4d8afb378 kostenfrei http://www.sciencedirect.com/science/article/pii/S2588840422000609 kostenfrei https://doaj.org/toc/2588-8404 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2023 1 25-32 |
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Zhikun Yin misc Near-α titanium alloy misc Tri-modal microstructure misc Multi-pass conventional forging misc Dual heat treatment misc Initial microstructure misc Technology misc T Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures |
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Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures Near-α titanium alloy Tri-modal microstructure Multi-pass conventional forging Dual heat treatment Initial microstructure |
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Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures |
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feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures |
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Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures |
abstract |
Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. |
abstractGer |
Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. |
abstract_unstemmed |
Conventional forging followed by dual heat treatment (near-β and two-phase field heat treatments) is a feasible technique aimed at obtaining tri-modal microstructure in near-α titanium alloys. In view of the enlargement and integration of aerospace structural parts as well as the microstructure diversification of original billet, the Ti–6242S alloy specimens with three different initial microstructures were subjected to multi-pass conventional forging and dual heat treatment. The flow behavior and microstructure evolution of material were analyzed. The results indicated that lamellar α has a stronger ability to coordinate deformation than equiaxed α. The more lamellar α in the microstructure, the slower the microstructure reconstruction during deformation interruption. It is feasible to obtain tri-modal microstructure by any pass conventional forging and dual heat treatment for the initial equiaxed or duplex microstructure, and two passes are more appropriate. The difference between initial equiaxed and duplex microstructures is gradually eliminated through a series of microstructure evolutions during the subsequent heat treatment. For initial lamellar microstructure, a kind of microstructure with multi-scale equiaxed α can be formed after multi-pass conventional forging. The spheroidization fraction of lamellar α is significantly increased with the increase of deformation pass. Tri-modal microstructure can be obtained through three-pass forging and dual heat treatment. |
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Feasibility analysis of obtaining tri-modal microstructure by multi-pass conventional forging combined with dual heat treatment for near-α titanium alloy with different initial microstructures |
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