On the deformation mechanisms and strain rate sensitivity of a metastable β Ti-Nb alloy

Hongyi Zhan; Weidong Zeng; Gui Wang; Damon Kent; Matthew Dargusch

doi:10.1016/j.scriptamat.2015.05.014

On the deformation mechanisms and strain rate sensitivity of a metastable β Ti-Nb alloy

Hongyi Zhan, Weidong Zeng, Gui Wang, Damon Kent, Matthew Dargusch

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

56 引用（Scopus）

摘要

The Ti-25Nb-3Zr-3Mo-2Sn (wt.%) alloy deforms primarily by {3 3 2}(1 1 3) twinning with limited {1 1 2}(1 1 1) twinning and stress-induced phase transformations. For the Ti-25Nb-3Zr-3Mo-2Sn alloy, the yield stress and strain hardening rate are independent of strain rate. It is found that adiabatic heating induced by high strain rate deformations is insufficient to significantly modify the deformation modes. Also the twinning rate and morphologies of {3 3 2}(1 1 3) twins are independent of strain rate (1 × 10^-3-1 × 10³ s^-1) within the strain range in our experiments.

源语言	英语
页（从-至）	34-37
页数	4
期刊	Scripta Materialia
卷	107
DOI	https://doi.org/10.1016/j.scriptamat.2015.05.014
出版状态	已出版 - 1 10月 2015

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10.1016/j.scriptamat.2015.05.014

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title = "On the deformation mechanisms and strain rate sensitivity of a metastable β Ti-Nb alloy",

abstract = "The Ti-25Nb-3Zr-3Mo-2Sn (wt.%) alloy deforms primarily by {3 3 2}(1 1 3) twinning with limited {1 1 2}(1 1 1) twinning and stress-induced phase transformations. For the Ti-25Nb-3Zr-3Mo-2Sn alloy, the yield stress and strain hardening rate are independent of strain rate. It is found that adiabatic heating induced by high strain rate deformations is insufficient to significantly modify the deformation modes. Also the twinning rate and morphologies of {3 3 2}(1 1 3) twins are independent of strain rate (1 × 10-3-1 × 103 s-1) within the strain range in our experiments.",

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T1 - On the deformation mechanisms and strain rate sensitivity of a metastable β Ti-Nb alloy

AU - Zhan, Hongyi

AU - Zeng, Weidong

AU - Wang, Gui

AU - Kent, Damon

AU - Dargusch, Matthew

PY - 2015/10/1

Y1 - 2015/10/1

N2 - The Ti-25Nb-3Zr-3Mo-2Sn (wt.%) alloy deforms primarily by {3 3 2}(1 1 3) twinning with limited {1 1 2}(1 1 1) twinning and stress-induced phase transformations. For the Ti-25Nb-3Zr-3Mo-2Sn alloy, the yield stress and strain hardening rate are independent of strain rate. It is found that adiabatic heating induced by high strain rate deformations is insufficient to significantly modify the deformation modes. Also the twinning rate and morphologies of {3 3 2}(1 1 3) twins are independent of strain rate (1 × 10-3-1 × 103 s-1) within the strain range in our experiments.

AB - The Ti-25Nb-3Zr-3Mo-2Sn (wt.%) alloy deforms primarily by {3 3 2}(1 1 3) twinning with limited {1 1 2}(1 1 1) twinning and stress-induced phase transformations. For the Ti-25Nb-3Zr-3Mo-2Sn alloy, the yield stress and strain hardening rate are independent of strain rate. It is found that adiabatic heating induced by high strain rate deformations is insufficient to significantly modify the deformation modes. Also the twinning rate and morphologies of {3 3 2}(1 1 3) twins are independent of strain rate (1 × 10-3-1 × 103 s-1) within the strain range in our experiments.

KW - High strain rates

KW - Mechanical twinning

KW - Metastable β titanium alloys

KW - Stress-induced martensitic transformation

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DO - 10.1016/j.scriptamat.2015.05.014

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JO - Scripta Materialia

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On the deformation mechanisms and strain rate sensitivity of a metastable β Ti-Nb alloy

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