退火温度对超细晶工业纯钛组织和力学性能的影响

doi:10.13251/j.issn.0254-6051.2023.10.018

金属热处理 ›› 2023, Vol. 48 ›› Issue (10): 129-133.DOI: 10.13251/j.issn.0254-6051.2023.10.018

退火温度对超细晶工业纯钛组织和力学性能的影响

谷艳霞^1,2, 江静华², 马爱斌², 吴浩然²

1.江苏海事职业技术学院, 江苏南京 211100;
2.河海大学力学与材料学院, 江苏南京 211100

收稿日期:2023-02-15 修回日期:2023-07-26 出版日期:2023-10-25 发布日期:2023-12-07
通讯作者: 江静华,教授,博士,E-mail:jinghua-jiang@hhu.edu.cn
作者简介:谷艳霞(1989—),女,讲师,博士,主要研究方向为超细晶钛的加工工艺,E-mail: guyanxiaj@126.com。
基金资助:
国家自然科学基金(52305365);中国博士后科学基金(2020M681474);江苏省产学研合作项目(BY2022899)

Effect of annealing temperature on microstructure and mechanical properties of ultra-fine grained commercial pure titanium

Gu Yanxia^1,2, Jiang Jinghua², Ma Aibin², Wu Haoran²

1. Jiangsu Maritime Institute, Nanjing Jiangsu 211100, China;
2. College of Mechanics and Materials, Hohai University, Nanjing Jiangsu 211100, China

Received:2023-02-15 Revised:2023-07-26 Online:2023-10-25 Published:2023-12-07

摘要/Abstract

摘要： 采用等通道转角挤压对工业纯钛进行加工,获得了超细晶工业纯钛,并对超细晶工业纯钛在不同温度下进行短时退火,研究了退火温度对超细晶工业纯钛组织和力学性能的影响,研究表明,超细晶工业纯钛经300~400 ℃低温短时退火后,晶粒尺寸没有明显增大,基面织构增强,强度得到提升,产生退火强化现象,且保持良好塑性。随着退火温度提高,超细晶工业纯钛晶粒发生明显长大,强度逐渐下降。

关键词: 工业纯钛, 超细晶, 退火, 组织, 力学性能

Abstract: Ultra-fine grained (UFG) commercial pure titanium was produced by equal channel angular pressing (ECAP), and then the UFG Ti was short-time annealed at different temperatures. The effect of annealing temperature on the microstructure and mechanical properties of the UFG Ti was studied. The results show that after short-time annealing at 300-400 ℃, the grain sizes of the UFG Ti are not significantly increased, the basal texture is enhanced, and the strength is improved, with good ductility maintained. With the increase of annealing temperature, the grain size of the UFG Ti increases obviously and the strength decreases gradually.

Key words: commercial pure titanium (CP-Ti), ultra-fine grain, annealing, microstructure, mechanical properties

中图分类号:

TG146.2

谷艳霞, 江静华, 马爱斌, 吴浩然. 退火温度对超细晶工业纯钛组织和力学性能的影响[J]. 金属热处理, 2023, 48(10): 129-133.

Gu Yanxia, Jiang Jinghua, Ma Aibin, Wu Haoran. Effect of annealing temperature on microstructure and mechanical properties of ultra-fine grained commercial pure titanium[J]. Heat Treatment of Metals, 2023, 48(10): 129-133.

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退火温度对超细晶工业纯钛组织和力学性能的影响

Effect of annealing temperature on microstructure and mechanical properties of ultra-fine grained commercial pure titanium

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