Effect of cold rolling process on microstructure and mechanical properties of high strength β titanium alloy thin sheets

被引：0

作者：

Yan Ma ^{[1
]}

Zhaoxin Du ^{[1
]}

Xiaoming Cui ^{[1
]}

Jun Cheng ^{[2
]}

Guolong Liu ^{[1
]}

Tianhao Gong ^{[1
]}

Huimin Liu ^{[1
]}

Xiaopeng Wang ^{[3
]}

Yuyong Chen ^{[3
]}

机构：

[1] School of Materials Science and Engineering, Inner Mongolia University of Technology

[2] Northwest Institute for Nonferrous Metal Research

[3] National Key Laboratory for Precision Hot Forming of Metals, Harbin Institute of Technology

来源：

Progress in Natural Science:Materials International | 2018年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Cold rolling process; High strength β titanium alloy; Microstructure; Mechanical properties;

D O I：

暂无

中图分类号：

TG335.55 []; TG146.23 [];

学科分类号：

080201 ; 080502 ; 080503 ;

摘要：

The microstructure and mechanical properties of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe high strength titanium alloy sheets prepared by unidirectional cold rolling and two-step cross cold rolling were investigated. Results showed that the β phase grains were refined significantly by cold rolling followed by solution treatment for a short time.Compared to unidirectional cold rolling, the short time solution treatment after two-step cross rolling could significantly reduce the non-uniformity of the microstructure of the alloy sheets. After aging treatment at 550 ℃,the anisotropy of the mechanical properties still existed in the unidirectional rolled sheets, and the tensile strength was highest along the rolling direction. After solution and aging treatment, the anisotropy of the mechanical properties of the two-step cross rolling process sheet was not obvious than unidirectional cold rolling,and alloy had good strength and plasticity matching.

引用

页码：711 / 717

页数：7

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