热处理对同质异态TC17钛合金线性摩擦焊接头的影响

doi:10.11896/cldb.22080152

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Abstract This work presented the influences of the heat treatment on the microstructure, residual stress and mechanical properties of the linear friction welding joint through carrying out linear friction welding (LFW) and post-weld heat treatment (PWHT) tests on TC17 (α+β) and TC17 (β) titanium alloys, observing and analyzing the microstructure changes of the joint by optical microscope (OM) as well as scanning electron microscope (SEM) and testing the residual stress distribution of the joint by the contour method. The results showed that phase transition and dynamic recrystallization process occurred during the welding process, and the metastable β phase was formed in weld zone. The primary α phase of the thermo-mechanically affected zone (TMAZ) on both sides was severely deformed, and the needle-like α phase was completely dissolved. After PWHT, the metastable β phase was decomposed into stable α+β phase, the lath α phase precipitating at the grain boundary and needle-like α phase within the grains could be found, and the deformed α phase was decomposed. The residual stress of the joint tested by contour method has a bimodal distribution along the vibration direction. The peak tensile stress located on the TMAZ of the joint reached about 360 MPa, and the tensile stress value at the weld center reduced to 140 MPa. The residual stress value of the joint was reduced to less than 50 MPa after PWHT. When the process of PWHT was finished, the microstructure of the joint was more uniform, and the residual stress of the joint was eliminated, so that the tensile and fatigue properties of the joint were significantly improved.

Key words： TC17 titanium linear friction welding residual press post-weld heat treatment mechanical property

Published: 25 April 2024 Online: 2024-04-28

CLC number:

TG453

Fund:National Natural Science Foundation of China (52105411) and National Science and Technology Major Project (2017-Ⅶ-0005-0098).

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	Articles by authors
	CHANG Chuanchuan
	LI Ju
	LI Xiaohong
	JIN Junlong
	ZHANG Chuanchen
	JI Yajuan

Cite this article:

CHANG Chuanchuan,LI Ju,LI Xiaohong, et al. Effect of Heat Treatment on Linear Friction Welding Joints of TC17 Titanium Alloys with Dissimilar Microstructures[J]. Materials Reports, 2024, 38(8): 22080152-5.

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http://www.mater-rep.com/EN/10.11896/cldb.22080152 OR http://www.mater-rep.com/EN/Y2024/V38/I8/22080152

1 Ji Y J, Zhang T C, Zhang L F, et al. Transactions of the China Welding Institution, 2019, 40(9), 156(in Chinese).
季亚娟, 张田仓, 张连锋, 等. 焊接学报, 2019, 40(9), 156.
2 Ji Y P, Chai Z Z, Zhao D L, et al. Journal of Materials Processing Technology, 2014, 214(4), 979.
3 Li Z J, Tian W, Zhang T C, et al. Journal of Aeronautical Materials, 2020, 40(4), 71(in Chinese).
李祚军, 田伟, 张田仓, 等. 航空材料学报, 2020, 40(4), 71.
4 Cai J M, Tian F, Liu D, et al. Journal of Materials Engineering, 2018, 46(5), 8(in Chinese).
蔡建明, 田丰, 刘东, 等. 材料工程, 2018, 46(5), 8.
5 Li J, Chang C C, Li X H, et al. Rare Metal Materials and Engineering, 2022, 51(3), 940(in Chinese).
李菊, 常川川, 李晓红, 等. 稀有金属材料与工程, 2022, 51(3), 940.
6 Dalgaard E, Wanjara P, Gholipour J, et al. Acta Materialia, 2012, 60(2), 770.
7 Chang C C, Li J, Li X H. Rare Metal Materials and Engineering, 2021, 50(10), 3771(in Chinese).
常川川, 李菊, 李晓红. 稀有金属材料与工程, 2021, 50(10), 3771.
8 Wanjara P, Jahazi M. Metallurgical and Materials Transactions A, 2005, 36(8), 214.
9 Vairis A, Frost M. Materials Science and Engineering A, 1999, 271(1-2), 477.
10 Anthony R M, Paul A C, Clement B, et al. Progress in Materials Science, 2018, 92, 225.
11 Buffa G, Baffari D, Barcellona A, et al. International Journal of Material Forming, 2020, 13(2), 383.
12 Li Y M, Guo X H, Chen B, et al. Acta Metallurgica Sinica, 2021, 57(3), 363(in Chinese).
李彦默, 郭小辉, 陈斌, 等. 金属学报, 2021, 57(3), 363.
13 Chen X, Xie F Q, Ma T J, et al. Journal of Alloys and Compounds, 2015, 646, 490.
14 Li W Y, Ma T J, Li J L. Materials & Design, 2010, 31(3), 1497.
15 Romero J, Attallah M M, Preuss M, et al. Acta Materialia, 2009, 57(18), 5582.
16 Frankel P, Preuss M, Steuwer A, et al. Materials Science and Technology, 2013, 25(5), 640.
17 Xie P, Zhao H, Liu Y. Science and Technology of Welding and Joining, 2016, 21(5), 351.