摘要
研究了不同热处理工艺对TC20钛合金棒材显微组织和力学性能的影响。结果表明:TC20钛合金经过两相区固溶+时效处理后得到双态组织,通过控制固溶冷却方式以及时效温度可调整初生α相含量以及次生α相含量和尺寸,改善其强度和塑性的匹配。采用940℃/1 h/WQ+700℃/30 min/AC+550℃/6 h/AC三重热处理工艺,在保证强塑性较佳匹配的同时,可以有效解决棒材直线度问题。
The influence of different heat treatments on microstructure and mechanical properties of TC20 titanium alloy bar was discussed.The results show that the duplex microstructure is obtained after solution and aging treatment in two-phase region.The cooling method and aging temperature are used to adjust the content of primaryαphase and the content and size of secondaryαphase to improve the matching of strength and plasticity.The problem of straightness can be effectively solved by 940℃/1 h/WQ+700℃/30 min/AC+550℃/6 h/AC,and the bar has the best matching of strength and plasticity.
作者
雷文光
李建康
张婷伟
赵宏礼
曹宇岩
岳旭
叶红川
Lei Wenguang;Li Jiankang;Zhang Tingwei;Zhao Hongli;Cao Yuyan;Yue Xu;Ye Hongchuan(Xinjiang Xiangrun New Material Technology Co.,Ltd.,Hami 839100,China)
出处
《钛工业进展》
CAS
2022年第4期21-24,共4页
Titanium Industry Progress
基金
2021年度新疆维吾尔自治区科技计划创新环境(人才、基地)建设专项—天山创新团队计划项目(2020D14041)。
关键词
TC20钛合金
棒材
热处理
显微组织
力学性能
TC20 titanium alloy
bar
heat treatment
microstructure
mechanical properties
