Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix

In this work, different transformed β matrix was obtained in Ti–5Al–7.5 V alloy. The alloy with equiaxed αp phase and transformed β matrix containing α′ martensite and β phase exhibits good combination of strength and plasticity, as well as a high work hardening rate. A concurrent operation of stres...

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Main Authors: Sisi Xie, Zhihong Wu, Nana Chen, Mingxiang Zhu, Hao Yang, Zilong Zhang, Chuanyun Wang, Jinshan Li, Hongchao Kou
Format: Article
Language:English
Published: Taylor & Francis Group 2024-04-01
Series:Materials Research Letters
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2024.2320767
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author Sisi Xie
Zhihong Wu
Nana Chen
Mingxiang Zhu
Hao Yang
Zilong Zhang
Chuanyun Wang
Jinshan Li
Hongchao Kou
author_facet Sisi Xie
Zhihong Wu
Nana Chen
Mingxiang Zhu
Hao Yang
Zilong Zhang
Chuanyun Wang
Jinshan Li
Hongchao Kou
author_sort Sisi Xie
collection DOAJ
description In this work, different transformed β matrix was obtained in Ti–5Al–7.5 V alloy. The alloy with equiaxed αp phase and transformed β matrix containing α′ martensite and β phase exhibits good combination of strength and plasticity, as well as a high work hardening rate. A concurrent operation of stress-induced α″ martensitic transformation, deformation twinning and dislocation slips was observed governing the deformation process of this alloy. The alloy with equiaxed αp phase and transformed β matrix containing secondary αs plates and retained β phase shows a high strength and plasticity but low work hardening rate, which is caused by dislocation slips.HighlightsThe quenched Ti–5Al–7.5 V alloy exhibits a high work hardening rate, approximately 5500 MPa.The dependence of work hardening rate of Ti–5Al–7.5 V alloy on transformed β matrix is revealed.Concurrent operations of stress-induced α″ martensitic transformation, deformation twinning and dislocation slips govern deformation of the studied alloy.
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spelling doaj.art-74b02cb409d54bf7aa40adc455c002102024-03-11T14:46:35ZengTaylor & Francis GroupMaterials Research Letters2166-38312024-04-0112429029710.1080/21663831.2024.2320767Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrixSisi Xie0Zhihong Wu1Nana Chen2Mingxiang Zhu3Hao Yang4Zilong Zhang5Chuanyun Wang6Jinshan Li7Hongchao Kou8State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaIn this work, different transformed β matrix was obtained in Ti–5Al–7.5 V alloy. The alloy with equiaxed αp phase and transformed β matrix containing α′ martensite and β phase exhibits good combination of strength and plasticity, as well as a high work hardening rate. A concurrent operation of stress-induced α″ martensitic transformation, deformation twinning and dislocation slips was observed governing the deformation process of this alloy. The alloy with equiaxed αp phase and transformed β matrix containing secondary αs plates and retained β phase shows a high strength and plasticity but low work hardening rate, which is caused by dislocation slips.HighlightsThe quenched Ti–5Al–7.5 V alloy exhibits a high work hardening rate, approximately 5500 MPa.The dependence of work hardening rate of Ti–5Al–7.5 V alloy on transformed β matrix is revealed.Concurrent operations of stress-induced α″ martensitic transformation, deformation twinning and dislocation slips govern deformation of the studied alloy.https://www.tandfonline.com/doi/10.1080/21663831.2024.2320767Titanium alloyswork hardeningmartensitic phase transformationtwinningdislocation slips
spellingShingle Sisi Xie
Zhihong Wu
Nana Chen
Mingxiang Zhu
Hao Yang
Zilong Zhang
Chuanyun Wang
Jinshan Li
Hongchao Kou
Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
Materials Research Letters
Titanium alloys
work hardening
martensitic phase transformation
twinning
dislocation slips
title Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
title_full Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
title_fullStr Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
title_full_unstemmed Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
title_short Multiple deformation mechanisms induce high work hardening in Ti–5Al–7.5 V alloy via transformed β matrix
title_sort multiple deformation mechanisms induce high work hardening in ti 5al 7 5 v alloy via transformed β matrix
topic Titanium alloys
work hardening
martensitic phase transformation
twinning
dislocation slips
url https://www.tandfonline.com/doi/10.1080/21663831.2024.2320767
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