DD5合金钎焊前电阻焊定位界面成形及性能分析研究

doi:10.11896/cldb.24030006

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Abstract This work was focused on the forming and performance analysis of resistance welding positioning interface prior to vacuum brazing with respect to the DD5 nickel-based single crystal high-temperature alloy components of a certain type of aircraft engine. The GH3030 foil with a thickness of 0.1 mm was used as the microgap support point for welding and on a resistance welding machine. The influence of equivalent double pulse resistance welding process parameters (welding current I₁=I₂, welding time t₁=t₂, welding pressure P) on the formation and mechanical properties of the microgap interface was studied. The interfacial properties showed an inverted V-shaped trend with the increase of welding time and welding pressure. Under the conditions of t₁=t₂=0.2 s and P=11.54 kN, the rise of welding current resulted in a gradual increase of the area of interface microgap positioning point connection, the homogenization of the growth directions of the γ-Ni phases dendritic structure, and a gradual increase of tensile load. As a large amount of TaC precipitates, pore defects appeared in the enriched area of TaC. When I₁=I₂=6.7 kA, the tensile load at the microgap interface reached its maximum of 8.63 kN, with a microgap size of 0.05 mm. When I₁=I₂>6.7 kA, the supporting GH3030 splashed severely and the mechanical properties decreased significantly. The single-pulse tensile fracture had a small dimple with incomplete welding defects observed, while the equivalent double-pulse tensile fracture had a larger dimple and located in the heat-affected zone.

Key words： DD5 nickel based single crystal high-temperature alloy resistance welding microgap brazing

Published: 10 May 2025 Online: 2025-04-28

CLC number:

TG453.9

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	Articles by authors
	SHENG Hongfei
	DENG Lipeng
	YI Runhua
	LI Haitao
	CHENG Donghai
	HUANG Bin

Cite this article:

SHENG Hongfei,DENG Lipeng,YI Runhua, et al. Analysis on the Forming of Positioning Interface in Pre-brazing Resistance Welding for DD5 Alloy and the Joint Performance[J]. Materials Reports, 2025, 39(9): 24030006-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24030006 OR https://www.mater-rep.com/EN/Y2025/V39/I9/24030006

1 Cui R, Huang Z. Transactions of Nonferrous Metals Society of China, 2016, 26(8), 2079.
2 Ma D X. Acta Metallurgica Sinica, 2015, 51(10), 1179(in Chinese).
马德新. 金属学报, 2015, 51(10), 1179.
3 Fuchs G E. Materials Science and Engineering A, 2001, 300(1-2), 52.
4 Chen J W, Salvati E, Uzun F, et al. Journal of Manufacturing Processes, 2020, 53, 190.
5 Ma T J, Yan M, Yang X W, et al. Materials & Design, 2015, 85, 613.
6 Wu Y, Chen J, Zhang L, et al. Materials Today Communications, 2022, 31, 103375.
7 Zeng Zhiqiang. Effect of pressure on microstructure and properties of li-quid phase diffusion bonding joint of nickel-base single crystal. Master’s Thesis, Nanchang Hangkong University, China, 2016 (in Chinese).
曾志强. 压力对镍基单晶液相扩散焊接头组织及性能的影响. 硕士学位论文, 南昌航空大学, 2016.
8 Liu Jiakun. Research on process and mechanism of diffusion bonding DD3 nickel-based superalloy to Ti₃AlC₂ ceramic. Ph. D. Thesis, Harbin Institute of Technology, China, 2019 (in Chinese).
刘甲坤. DD3镍基高温合金与Ti₃AlC₂陶瓷扩散连接工艺及机理研究. 博士学位论文, 哈尔滨工业大学, 2019.
9 Zhang Zhipeng. Study on brazing process of a fourth generation nickel-based single crystal superalloy. Master’s Thesis, Shengyang University of Technology, China, 2022 (in Chinese).
张志鹏. 一种第四代镍基单晶高温合金的钎焊工艺研究. 硕士学位论文, 沈阳工业大学, 2022.
10 Zhou Qingquan, Shuai Gewang, Liu Zeming. Materials for Mechanical Engineering, 2017, 41(4), 20(in Chinese).
周清泉, 帅歌旺, 刘泽民. 机械工程材料, 2017, 41(4), 20.
11 Bemani M, Pouranvari M. Materials Science & Engineering A, 2020, 773(Part C), 138825.
12 Li Zhiqiang, Huang Chaohui, Tan Yongning, et al. Journal of Aeronautical Materials, 2011, 31(5), 1.
李志强, 黄朝晖, 谭永宁, 等. 航空材料学报, 2011, 31(5), 1.
13 Xiong Huaping, Li Hong, Mao Wei, et al. Transactions of the China Welding Institution, 2011, 32(5), 108(in Chinese).
熊华平, 李红, 毛唯, 等. 焊接学报, 2011, 32(5), 108.
14 Neumeier S, Dinkel M, Pyczak F, et al. Materials Science and Enginee-ring A, 2011, 528(3), 815.
15 Li Kexin, Hou Xingyu, Wang Shiyang, et al. Journal of Aeronautical Materials, 2021, 41(5), 78(in Chinese).
李可馨, 侯星宇, 王诗洋, 等. 航空材料学报, 2021, 41(5), 78.
16 Sun Yuan, Hou Xingyu, Jin Tao, et al. Transactions of the China Wel-ding Institution, 2017, 38(1), 117(in Chinese).
孙元, 侯星宇, 金涛, 等. 焊接学报, 2017, 38(1), 117.
17 Sun Yuan, Liu Jide, Liu Zhongming, et al. Acta Metallurgica Sinica, 2013, 49(12), 1581(in Chinese).
孙元, 刘纪德, 刘忠明, 等. 金属学报, 2013, 49(12), 1581.
18 Lu Chao, Min Xiaohua, Wang Weiqiang, et al. Hot Working Technology, 2023(19), 36(in Chinese).
鹿超, 闵小华, 王伟强, 等. 热加工工艺, 2023(19), 36