热处理对激光立体成形TB18钛合金组织和力学性能的影响

doi:10.13251/j.issn.0254-6051.2022.03.024

金属热处理 ›› 2022, Vol. 47 ›› Issue (3): 124-129.DOI: 10.13251/j.issn.0254-6051.2022.03.024

热处理对激光立体成形TB18钛合金组织和力学性能的影响

张颖¹, 王浩军¹, 陈素明¹, 胡广², 欧阳德来³, 崔霞³, 胡生双¹

1.中航西安飞机工业集团股份有限公司, 陕西西安 710089;
2.西安铂力特增材技术股份有限公司, 陕西西安 710000;
3.南昌航空大学材料科学与工程学院, 江西南昌 330063

收稿日期:2021-11-14 修回日期:2022-01-27 出版日期:2022-03-25 发布日期:2022-04-22
通讯作者: 胡生双,工程师,学士,E-mail:hushengshuang2000@163.com
作者简介:张颖(1974—),女,高级工程师,学士,主要研究方向为焊接及增材制造,E-mail:3124405664@qq.com。
基金资助:
国家自然科学基金(51761029, 51864035)

Effect of heat treatment on microstructure and mechanical properties of laser solid forming TB18 titanium alloy

Zhang Ying¹, Wang Haojun¹, Chen Suming¹, Hu Guang², Ouyang Delai³, Cui Xia³, Hu Shengshuang¹

1. AVIC Xi'an Aircraft Industry Group Company Ltd., Xi'an Shaanxi 710089, China;
2. Xi'an Bright Laser Technologies Company Ltd., Xi'an Shaanxi 710000, China;
3. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang Jiangxi 330063, China

Received:2021-11-14 Revised:2022-01-27 Online:2022-03-25 Published:2022-04-22

摘要/Abstract

摘要： 采用BLT-C1000型激光立体成形设备制备了沉积态的TB18钛合金,然后采用OM、SEM和拉伸试验机等方法研究了不同热处理工艺对TB18钛合金显微组织和力学性能的影响。结果表明,沉积态试验合金的宏观组织以长条形β晶粒为主,晶内由亚稳β相和针状次生α相组成,且存在贯穿β晶粒的沉积层线。随着直接时效温度的升高,原始β晶粒形状变化不大,内部次生α相厚度增加,在形貌上次生α相从针状向片状转变。直接时效温度高于550 ℃时,沉积层线消失,直接固溶温度高于830 ℃时显微组织以全β晶粒组成。固溶+时效处理后,微观组织以纵横交错的细层片状α相为主。随着直接时效温度的升高,抗拉强度和屈服强度降低,伸长率增加。固溶+时效后析出次生α相,抗拉强度和屈服强度显著增加,同时伸长率下降。综合考虑,实际生产中沉积态的TB18钛合金的最佳热处理工艺为直接时效500 ℃×4 h,此时强度和伸长率均高于指标要求。

关键词: 激光立体成形, TB18钛合金, 热处理, 组织, 性能

Abstract: As-deposited TB18 titanium alloy was prepared by using BLT-C1000 laser solid forming equipment, and then the effects of different heat treatment processes on microstructure and mechanical properties of the TB18 titanium alloy were studied by means of OM, SEM and tensile testing machine. The results show that the macrostructure of the as-deposited tested alloy is dominated by elongated β grains, which are composed of metastable β phases and acicular secondary α phases, and there are deposited layer lines running through the β-grains. With the increase of direct aging temperature, the shape of the original β grains changes a little, the thickness of the internal secondary α phases increases, and the morphology of secondary α phases changes from needle-like to flake-like. When the direct aging temperature is higher than 550 ℃, the deposition layer line disappears, and the microstructure is composed of all β grains at the direct solution temperature higher than 830 ℃. After solution and aging treatments, the microstructure mainly consists of crisscross fine lamellar secondary α phase. With the increase of direct aging temperature, the tensile strength and yield strength decrease and the elongation increases. The secondary α phase is precipitated after solution and aging treatments, and the tensile strength and yield strength increase significantly, while the elongation decreases. By comprehensive consideration, the optimal heat treatment process of the as-deposited TB18 titanium alloy in actual production is direct aging at 500 ℃ for 4 h, at which the strength and elongation are higher than the index requirements.

Key words: laser solid forming, TB18 titanium alloy, heat treatment, microstructure, mechanical properties

中图分类号:

TG166.5

张颖, 王浩军, 陈素明, 胡广, 欧阳德来, 崔霞, 胡生双. 热处理对激光立体成形TB18钛合金组织和力学性能的影响[J]. 金属热处理, 2022, 47(3): 124-129.

Zhang Ying, Wang Haojun, Chen Suming, Hu Guang, Ouyang Delai, Cui Xia, Hu Shengshuang. Effect of heat treatment on microstructure and mechanical properties of laser solid forming TB18 titanium alloy[J]. Heat Treatment of Metals, 2022, 47(3): 124-129.

参考文献

[1]齐广峰, 张策, 曹圣兵. 高功重比钛合金材料在航空作动系统中的应用[J]. 现代制造技术与装备, 2020, 56(12): 168-170.
Qi Guangfeng, Zhang Ce, Cao Shengbin. Application of titanium alloy material based on high power-to-weight ratio in aviation actuationsystem[J]. Modern Manufacturing Technology and Equipment, 2020, 56(12): 168-170.
[2]刘世锋, 宋玺, 薛彤, 等. 钛合金及钛基复合材料在航空航天的应用和发展[J]. 航空材料学报, 2020, 40(3): 77-94.
Liu Shifeng, Song Xi, Xue Tong, et al. Application and development of titanium alloy and titanium matrix composites in aerospace field[J]. Journal of Aeronautical Materials, 2020, 40(3): 77-94.
[3]师俊峰, 韩珍梅. 航空紧固件钛合金材料的应用现状[J]. 机械管理开发, 2020, 35(5): 258-259.
Shi Junfeng, Han Zhenmei. Application status of titanium alloy material for aviation fasteners[J]. Mechanical Management and Development, 2020, 35(5): 258-259.
[4]李毅, 赵永庆, 曾卫东. 航空钛合金的应用及发展趋势[J]. 材料导报, 2020, 34(S1): 280-282.
Li Yi, Zhao Yongqing, Zeng Weidong. Application and development of aerial titanium alloys[J]. Materials Review, 2020, 34(S1): 280-282.
[5]李少强, 弓站朋, 李辉, 等. TB18钛合金热变形行为及动态再结晶机制[J]. 稀有金属材料与工程, 2020, 49(9): 3045-3051.
Li Shaoqiang, Gong Zhanpeng, Li Hui, et al. High temperature deformation behavior and dynamic recrystallization mechanism of TB18 titanium alloy[J]. Rare Metal Materials and Engineering, 2020, 49(9): 3045-3051.
[6]陈星, 葛亚琼. 激光立体成形技术的发展及应用[J]. 热加工工艺, 2019, 48(6): 23-25.
Chen Xing, Ge Yaqiong. Development and application of laser solid forming technology[J]. Hot Working Technology, 2019, 48(6): 23-25.
[7]赵学平, 侯小虎, 刘飞. 激光立体成形Ti-6Al-4V时效态合金显微组织结构研究[J]. 内蒙古工业大学学报(自然科学版), 2019, 38(3): 170-175.
Zhao Xueping, Hou Xiaohu, Liu Fei. Study on microstructure of aging laser solid forming Ti-6Al-4V alloy[J]. Journal of Inner Mongolia University of Technology(Natural Science Edition), 2019, 38(3): 170-175.
[8]李静, 林鑫, 钱远宏, 等. 激光立体成形TC4钛合金组织和力学性能研究[J]. 中国激光, 2014, 41(11): 109-113.
Li Jing, Lin Xin, Qian Yuanhong, et al. Study on microstructure and property of laser solid forming TC4 titanium alloy[J]. Chinese Journal of Lasers, 2014, 41(11): 109-113.
[9]杨杰穷, 陈静, 赵卫强, 等. 激光立体成形TC11DT钛合金裂纹扩展速率研究[J]. 应用激光, 2014, 34(4): 277-282.
Yang Jieqiong, Chen Jing, Zhao Weiqiang, et al. Research on crack propagation rate of TC11DT titanium alloy fabricated by laser solid forming[J]. Applied Laser, 2014, 34(4): 277-282.
[10]周平, 郭伟国, 李鹏辉, 等. 激光立体成形TC4钛合金的力学特性与破坏机理[J]. 材料科学与工程学报, 2019, 37(1): 56-63.
Zhou Ping, Guo Weiguo, Li Penghui, et al. Mechanical properties and failure mechanism of laser solid formed TC4 titanium alloy[J]. Journal of Materials Science and Engineering, 2019, 37(1): 56-63.
[11]谷美邦. 热处理制度对激光增材制造TA15钛合金力学性能的影响[J]. 航空制造技术, 2021, 64(3): 97-102.
Gu Meibang. Influence of heat treatment on mechanical properties of TA15 titanium alloy fabricated by laser additive manufacturing[J]. Aeronautical Manufacturing Technology, 2021, 64(3): 97-102.

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热处理对激光立体成形TB18钛合金组织和力学性能的影响

Effect of heat treatment on microstructure and mechanical properties of laser solid forming TB18 titanium alloy

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