热处理制度对Ti-1023钛合金微观组织及力学性能的影响

doi:10.13251/j.issn.0254-6051.2023.12.019

金属热处理 ›› 2023, Vol. 48 ›› Issue (12): 116-122.DOI: 10.13251/j.issn.0254-6051.2023.12.019

热处理制度对Ti-1023钛合金微观组织及力学性能的影响

蒋小娟¹, 杨刚¹, 詹正阳¹, 程小伟², 董梦瑶¹, 邓国勇³, 孙涛³, 孙朝远^3,4

1.重庆工业职业技术学院机械工程学院, 重庆 401120;
2.成都先进金属材料产业技术研究院股份有限公司, 四川, 成都 610300;
3.重庆大学材料科学与工程学院, 重庆 400044;
4.中国第二重型机械集团德阳万航模锻有限责任公司, 四川德阳 618000

收稿日期:2023-06-30 修回日期:2023-10-22 出版日期:2023-12-25 发布日期:2024-01-29
作者简介:蒋小娟(1987—),女,讲师,博士,主要研究方向为金属变形强塑性机理,E-mail:jiangxj@cqipc.edu.cn
基金资助:
重庆市教育委员会科学技术研究计划青年项目(KJQN202203209,KJQN202203216);重庆市自然科学基金面上项目(No.cstc2021jcyj-msxmX1112)

Effect of heat treatment on microstructure and mechanical properties of Ti-1023 titanium alloy

Jiang Xiaojuan¹, Yang Gang¹, Zhan Zhengyang¹, Cheng Xiaowei², Dong Mengyao¹, Deng Guoyong², Sun Tao², Sun Chaoyuan^2,3

1. School of Mechanical Engineering, Chongqing Industry Polytechnic College, Chongqing 401120, China;
2. Chengdu Advanced Metal Material Research Institute Co., Ltd., Chengdu Sichuan 610300, China;
3. School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
4. China National Erzhong Group Deyang Wahang Die Forging Co., Ltd., Deyang Sichuan 618000, China

Received:2023-06-30 Revised:2023-10-22 Online:2023-12-25 Published:2024-01-29

摘要/Abstract

摘要： 利用热处理工艺炉、力学性能试验机、X射线衍射仪等试验设备,研究了固溶、时效和冷却速度对Ti-1023合金的显微结构和力学性能的影响。结果表明,采用单一固溶处理,固溶温度略高于相变点温度时,初生α_P相消失,β晶粒缓慢长大,合金强度和硬度提高;该合金经固溶水冷处理后,由于冷却速度快,形成少量的α相与均匀粗大的β相共同形成网篮组织,合金强度和硬度提高;当时效时间为1 h时,时效过程形成的次生α_S相会产生第二相强化作用,表现出显著的弥散强化效果,合金强度和硬度升高。

关键词: Ti-1023钛合金, 固溶时效, 显微组织, 力学性能, XRD

Abstract: Effects of solution treatment, aging and cooling rate on the microstructure and mechanical properties of Ti-1023 alloy were studied by using heat treatment furnace, mechanical performance testing machine and X-ray diffractometer. The results show that when the solution treatment temperature is slightly higher than transition temperature, the primary α_P phase disappears with β grain growing slowly, and the strength and hardness of the alloy increase. The alloy is water quenched after solution treatment, due to the fast cooling rate, a small amount of α phase and the uniform thick β phase form the basket-weave structure, and the strength and hardness are improved. When the aging time is 1 h, the secondary α_S formed during the aging process produces the second phase strengthening effect, which shows significant dispersion strengthening effect and increases the strength and hardness of the alloy.

Key words: Ti-1023 titanium alloy, solution and aging, microstructure, mechanical properties, XRD

中图分类号:

TG166.5

蒋小娟, 杨刚, 詹正阳, 程小伟, 董梦瑶, 邓国勇, 孙涛, 孙朝远. 热处理制度对Ti-1023钛合金微观组织及力学性能的影响[J]. 金属热处理, 2023, 48(12): 116-122.

Jiang Xiaojuan, Yang Gang, Zhan Zhengyang, Cheng Xiaowei, Dong Mengyao, Deng Guoyong, Sun Tao, Sun Chaoyuan. Effect of heat treatment on microstructure and mechanical properties of Ti-1023 titanium alloy[J]. Heat Treatment of Metals, 2023, 48(12): 116-122.

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热处理制度对Ti-1023钛合金微观组织及力学性能的影响

Effect of heat treatment on microstructure and mechanical properties of Ti-1023 titanium alloy

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