轧制温度与变形量对TB2钛合金微观组织和力学性能的影响

doi:10.13251/j.issn.0254-6051.2023.02.032

金属热处理 ›› 2023, Vol. 48 ›› Issue (2): 206-211.DOI: 10.13251/j.issn.0254-6051.2023.02.032

轧制温度与变形量对TB2钛合金微观组织和力学性能的影响

张雄¹, 景然^1,2, 张晴¹, 刘以柔¹, 吴倩¹, 李江华^1,2, 炊鹏飞^1,2

1.陕西理工大学材料科学与工程学院, 陕西汉中 723000;
2.陕西理工大学矿渣综合利用环保技术国家与地方联合工程实验室, 陕西汉中 723000

收稿日期:2022-11-02 修回日期:2023-01-05 出版日期:2023-02-25 发布日期:2023-03-22
通讯作者: 景然,副教授,硕士生导师,博士,E-mail: qwe_jr@163.com
作者简介:张雄 (1998—),男,硕士研究生,主要研究方向为钛合金,E-mail:1340137229@qq.com。
基金资助:
国家自然科学基金(51901120);陕西省自然科学基础研究计划(2019JQ-881, 2020JQ-871);陕西省教育厅专项科研计划(19JK0170)

Effect of rolling temperature and amount on microstructure and mechanical properties of TB2 titanium alloy

Zhang Xiong¹, Jing Ran^1,2, Zhang Qing¹, Liu Yirou¹, Wu Qian¹, Li Jianghua^1,2, Chui Pengfei^1,2

1. School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong Shaanxi 723000, China;
2. National & Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, Shaanxi University of Technology, Hanzhong Shaanxi 723000, China

Received:2022-11-02 Revised:2023-01-05 Online:2023-02-25 Published:2023-03-22

摘要/Abstract

摘要： 通过X射线衍射仪、光学显微镜、扫描电镜、硬度计以及万能拉伸试验机等研究了不同轧制温度及变形量对TB2钛合金显微组织、相结构以及力学性能的影响。结果表明,在600 ℃轧制处理后,TB2钛合金由β相和α相组成。同一轧制温度下,随着变形量的增加,晶粒被明显拉长,基体中的β晶粒部分破碎,并在晶界处出现大量再结晶晶粒。当轧制温度为600 ℃,变形量为60%时,合金的抗拉强度最大,可达到1360 MPa,伸长率为5.7%;而当轧制温度为600 ℃,变形量为40%时,合金的抗拉强度最大,可达到1270 MPa,伸长率为10.9%,综合力学性能较好。

关键词: TB2钛合金, 轧制温度, 显微组织, 力学性能

Abstract: Effects of rolling temperature and deformation amount on microstructure, phase structure and mechanical properties of the TB2 titanium alloy were studied by means of X-ray diffractometer, optical microscope, scanning electron microscope, hardness tester and universal tensile testing machine. The results show that after rolling at 600 ℃, the TB2 titanium alloy consists of β and α phases. At the same rolling temperature, as the deformation amount increases, the grains in the alloy are elongated, the β phase in the matrix is partially broken, and a large amount of recrystallization grains form on the grain boundaries. When the rolling temperature is 600 ℃ and the deformation is 60%, the maximum tensile strength of the alloy can reach 1360 MPa and the elongation is 5.7%. When the rolling temperature is 600 ℃ and the deformation is 40%, the maximum tensile strength of the alloy reaches 1270 MPa, the elongation is 10.9%, and the comprehensive mechanical properties are better.

Key words: TB2 titanium alloy, rolling temperature, microstructure, mechanical properties

中图分类号:

TG166.5

张雄, 景然, 张晴, 刘以柔, 吴倩, 李江华, 炊鹏飞. 轧制温度与变形量对TB2钛合金微观组织和力学性能的影响[J]. 金属热处理, 2023, 48(2): 206-211.

Zhang Xiong, Jing Ran, Zhang Qing, Liu Yirou, Wu Qian, Li Jianghua, Chui Pengfei. Effect of rolling temperature and amount on microstructure and mechanical properties of TB2 titanium alloy[J]. Heat Treatment of Metals, 2023, 48(2): 206-211.

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轧制温度与变形量对TB2钛合金微观组织和力学性能的影响

Effect of rolling temperature and amount on microstructure and mechanical properties of TB2 titanium alloy

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