Superplastic Deformation Mechanism and Simultaneous Microstructure Evolution of Fine-grained Ti-6Al-4V Wide Sheet

Xuehua Zhang; Yongqing Zhao; Weidong Zeng

Superplastic Deformation Mechanism and Simultaneous Microstructure Evolution of Fine-grained Ti-6Al-4V Wide Sheet

投稿的翻译标题: 细晶Ti-6Al-4V宽幅板材的超塑性变形机理及组织演变

Xuehua Zhang
, Yongqing Zhao
, Weidong Zeng

材料学院

Northwestern Polytechnical University Xian
Western Metal Materials Co., Ltd.
Northwest Institute for Nonferrous Metal Research

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

The superplasticity of fine-grained Ti-6Al-4V wide sheet was investigated by constant strain rate tensile method. The superplastic tensile tests were carried out at temperatures ranging from 1103 K to 1223 K and strain rates ranging from 3.2×10^-4 s^-1 to 1×10^-2 s^-1. The results show that tensile elongation to failure values between 100% and 604% are obtained. Microstructure evolution and deformation mechanism were analyzed. Results show that the main deformation mechanism is grain boundary sliding, accommodated by matrix dislocation movement and the intragranular slip of β phase. It is also found that the Ti-6Al-4V wide sheet shows anisotropy when deformed at lower temperatures, which is obviously reduced when deformed at higher temperatures.

投稿的翻译标题	细晶Ti-6Al-4V宽幅板材的超塑性变形机理及组织演变
源语言	英语
页（从-至）	391-397
页数	7
期刊	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
卷	49
期	2
出版状态	已出版 - 1 2月 2020

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引用此

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title = "Superplastic Deformation Mechanism and Simultaneous Microstructure Evolution of Fine-grained Ti-6Al-4V Wide Sheet",

abstract = "The superplasticity of fine-grained Ti-6Al-4V wide sheet was investigated by constant strain rate tensile method. The superplastic tensile tests were carried out at temperatures ranging from 1103 K to 1223 K and strain rates ranging from 3.2{\texttimes}10-4 s-1 to 1{\texttimes}10-2 s-1. The results show that tensile elongation to failure values between 100\% and 604\% are obtained. Microstructure evolution and deformation mechanism were analyzed. Results show that the main deformation mechanism is grain boundary sliding, accommodated by matrix dislocation movement and the intragranular slip of β phase. It is also found that the Ti-6Al-4V wide sheet shows anisotropy when deformed at lower temperatures, which is obviously reduced when deformed at higher temperatures.",

keywords = "Anisotropy, Deformation mechanism, Superplasticity, Ti-6Al-4V wide sheet",

author = "Xuehua Zhang and Yongqing Zhao and Weidong Zeng",

year = "2020",

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T1 - Superplastic Deformation Mechanism and Simultaneous Microstructure Evolution of Fine-grained Ti-6Al-4V Wide Sheet

AU - Zhang, Xuehua

AU - Zhao, Yongqing

AU - Zeng, Weidong

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The superplasticity of fine-grained Ti-6Al-4V wide sheet was investigated by constant strain rate tensile method. The superplastic tensile tests were carried out at temperatures ranging from 1103 K to 1223 K and strain rates ranging from 3.2×10-4 s-1 to 1×10-2 s-1. The results show that tensile elongation to failure values between 100% and 604% are obtained. Microstructure evolution and deformation mechanism were analyzed. Results show that the main deformation mechanism is grain boundary sliding, accommodated by matrix dislocation movement and the intragranular slip of β phase. It is also found that the Ti-6Al-4V wide sheet shows anisotropy when deformed at lower temperatures, which is obviously reduced when deformed at higher temperatures.

AB - The superplasticity of fine-grained Ti-6Al-4V wide sheet was investigated by constant strain rate tensile method. The superplastic tensile tests were carried out at temperatures ranging from 1103 K to 1223 K and strain rates ranging from 3.2×10-4 s-1 to 1×10-2 s-1. The results show that tensile elongation to failure values between 100% and 604% are obtained. Microstructure evolution and deformation mechanism were analyzed. Results show that the main deformation mechanism is grain boundary sliding, accommodated by matrix dislocation movement and the intragranular slip of β phase. It is also found that the Ti-6Al-4V wide sheet shows anisotropy when deformed at lower temperatures, which is obviously reduced when deformed at higher temperatures.

KW - Anisotropy

KW - Deformation mechanism

KW - Superplasticity

KW - Ti-6Al-4V wide sheet

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SN - 1002-185X

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EP - 397

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 2

ER -

Superplastic Deformation Mechanism and Simultaneous Microstructure Evolution of Fine-grained Ti-6Al-4V Wide Sheet

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