Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing

A novel variable temperature rolling (VTR) and annealing process was conducted on a metastable austenitic stainless steel. Strain softening occurred during tensile straining in both cold rolled and cryogenic rolled-annealed steels, leading to low uniform elongations of only 2-3%. In contrast, thanks...

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Main Authors: Jun Hu, Xuyang Li, Zheming Zhang, Lingyu Wang, Yizhuang Li, Wei Xu
Format: Article
Language:English
Published: Taylor & Francis Group 2023-08-01
Series:Materials Research Letters
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2023.2209596
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author Jun Hu
Xuyang Li
Zheming Zhang
Lingyu Wang
Yizhuang Li
Wei Xu
author_facet Jun Hu
Xuyang Li
Zheming Zhang
Lingyu Wang
Yizhuang Li
Wei Xu
author_sort Jun Hu
collection DOAJ
description A novel variable temperature rolling (VTR) and annealing process was conducted on a metastable austenitic stainless steel. Strain softening occurred during tensile straining in both cold rolled and cryogenic rolled-annealed steels, leading to low uniform elongations of only 2-3%. In contrast, thanks to the metastable dual-phase heterogeneous lamellar structure achieved via the VTR process, a ultra-high strength of over 1 GPa was obtained, and strain hardening led to a remarkable increase of uniform elongation up to 10%. The high strength and ductility are attributed to the significant work-hardening derived from the superior heterogeneous deformation-induced hardening and sustained transformation-induced plasticity effect.
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spelling doaj.art-eb596a2f83d7471f87c7cb2681ee55e72024-03-26T11:43:38ZengTaylor & Francis GroupMaterials Research Letters2166-38312023-08-0111864865410.1080/21663831.2023.2209596Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealingJun Hu0Xuyang Li1Zheming Zhang2Lingyu Wang3Yizhuang Li4Wei Xu5The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, People’s Republic of ChinaA novel variable temperature rolling (VTR) and annealing process was conducted on a metastable austenitic stainless steel. Strain softening occurred during tensile straining in both cold rolled and cryogenic rolled-annealed steels, leading to low uniform elongations of only 2-3%. In contrast, thanks to the metastable dual-phase heterogeneous lamellar structure achieved via the VTR process, a ultra-high strength of over 1 GPa was obtained, and strain hardening led to a remarkable increase of uniform elongation up to 10%. The high strength and ductility are attributed to the significant work-hardening derived from the superior heterogeneous deformation-induced hardening and sustained transformation-induced plasticity effect.https://www.tandfonline.com/doi/10.1080/21663831.2023.2209596Austenitic stainless steelvariable temperature rollingheterogeneous lamellar structureHDI hardeningTRIP effect
spellingShingle Jun Hu
Xuyang Li
Zheming Zhang
Lingyu Wang
Yizhuang Li
Wei Xu
Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
Materials Research Letters
Austenitic stainless steel
variable temperature rolling
heterogeneous lamellar structure
HDI hardening
TRIP effect
title Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
title_full Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
title_fullStr Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
title_full_unstemmed Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
title_short Overcoming the strength-ductility trade-off in metastable dual-phase heterogeneous structures using variable temperature rolling and annealing
title_sort overcoming the strength ductility trade off in metastable dual phase heterogeneous structures using variable temperature rolling and annealing
topic Austenitic stainless steel
variable temperature rolling
heterogeneous lamellar structure
HDI hardening
TRIP effect
url https://www.tandfonline.com/doi/10.1080/21663831.2023.2209596
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AT lingyuwang overcomingthestrengthductilitytradeoffinmetastabledualphaseheterogeneousstructuresusingvariabletemperaturerollingandannealing
AT yizhuangli overcomingthestrengthductilitytradeoffinmetastabledualphaseheterogeneousstructuresusingvariabletemperaturerollingandannealing
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