钛/铝异种金属FSW接头的氢扩散试验设计与研究
Experimental Design and Research on Hydrogen Diffusion in FSW Joints of Titanium/Aluminum Dissimilar Metals
- 2022年52卷第6期 页码:99-104
DOI: 10.7512/j.issn.1001-2303.2022.06.12
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陈玉华,龚资颖,张体明,等.钛/铝异种金属FSW接头的氢扩散试验设计与研究[J].电焊机,2022,52(6):99-104.
CHEN Yuhua, GONG Ziying, ZHANG Timing, et al.Experimental Design and Research on Hydrogen Diffusion in FSW Joints of Titanium/Aluminum Dissimilar Metals[J].Electric Welding Machine, 2022, 52(6): 99-104.
钛/铝异种金属焊接结构因兼具两种材料各自的优势,在航空航天、汽车制造等领域有着广阔的应用前景。但异种金属在涉海等潮湿环境中极易发生由电偶腐蚀引发的氢扩散问题,造成钛合金的氢致脆化。本文提供了一种基于丝束电极理念的异种金属焊接接头重构方法,可以实现异种金属焊接接头各个亚区之间的偶接测试。在此基础上设计了异种金属焊接接头的氢扩散行为监测装置,通过试验验证获得了氢在金属材料中的扩散系数、吸附氢浓度等参数,为揭示异种金属焊接结构的环境氢脆问题奠定了基础。提出的异种金属焊接接头氢渗透测试方法可以推广应用于铝/钢、镁/钢等异种金属焊接接头氢扩散行为的检测,为评价电偶腐蚀中的氢致脆化影响提供了理论指导,弥补了现有方法仅能研究阳极溶解行为的不足。
Titanium/aluminum dissimilar metals welding structures with respective advantage of the two materials has broad application prospects in aerospace, automobile manufacturing and other fields. However, these dissimilar metals are prone to hydrogen diffusion caused by galvanic corrosion in wet environments such as sea, resulting in hydrogen embrittlement of titanium alloys. A reconstruction method of welded joints of dissimilar metals based on the concept of wire beam electrode is electrode, which can realize the coupling test between various sub-regions of dissimilar metal welded joints. Subsequently, a hydrogen diffusion behavior monitoring device is designed. Through experimental verification, the parameters such as hydrogen diffusion coefficient and adsorbed hydrogen concentration of hydrogen in metals are obtained, which lays a foundation for revealing the environmental hydrogen embrittlement of dissimilar metals welded structures. The hydrogen permeation test method for dissimilar metal welded joints proposed in this paper can be extended to detect the hydrogen diffusion behavior of dissimilar metal welded joints such as aluminum / steel and magnesium / steel, which provides a theoretical guidance for evaluating the effect of hydrogen embrittlement in galvanic corrosion, and makes up for the deficiency that the existing methods can only study the anodic dissolution behavior.
电化学测试电偶腐蚀氢扩散Ti/Al异种材料连接搅拌摩擦焊
electrochemical testgalvanic corrosionhydrogen diffusionTi/Al dissimilar material connectionfriction stir welding
Chen Shuhai, Li Liqun, Chen Yanbin, et al. Joining mechanism of Ti/Al dissimilar alloys during laser welding-brazing process[J]. Journal of Alloys & Compounds, 2011, 509(3): 891-898.
于美, 刘建华, 李松梅. 航空铝合金腐蚀防护与检测方法[M]. 北京: 科学出版社, 2017.
张翅超,闫崇京,宋燕,等. 基于响应面法的钛铝异种金属搅拌摩擦点焊工艺参数优化[J]. 电焊机,2022,52(02):8-16.
ZHANG Chichao,YAN Chongjing,SONG Yan,et al. Process Parameters Optimization of Friction Stir Spot Welding of Titanium and Aluminum Based on Response Surface Methodology[J]. Electric Welding Machine,2022,52(02):8-16.
Yu Mingrun, Zhao Hongyun, Jiang Zhihua, et al. Influence of welding parameters on interface evolution and mechanical properties of FSW Al/Ti lap joints[J]. Journal of Materials Science & Technology, 2019, 35(8): 1543-1554.
刘正涛, 李忠盛, 陈大军, 等. 钛/铝异种金属搅拌摩擦焊技术研究现状[J]. 兵器装备工程学报, 2021, 42(8): 106-111.
Liu Zhengtao, Li Zhongsheng, Chen Dajun, et al. Research Status of Friction Stir Welding of Ti/Al Dissimilar Metals [J]. Journal of ordnance and equipment engineering, 2021, 42(8): 106-111.
Prasanta K R, Ghosh K S. Effect of micostructural features on stress corrosion cracking behavior of 7017 and 7150 aluminium alloy[J]. Materials Today: Proceedings, 2018, 5(1):2391-2400.
曲宜超. 盐雾环境下2A12铝合金与Ti-15-3钛合金的接触腐蚀研究[D]. 辽宁: 大连理工大学, 2019.
Qu Yichao. Study on Contact Corrosion of 2A12 Aluminum Alloy and Ti-15-3 Titanium Alloy in Salt Spray Environment[D]. Liaoning: Dalian University of Technology, 2019.
赵平平, 宋影伟, 董凯辉, 等. 钛-铝连接时的电偶腐蚀及控制措施研究[J]. 中国有色金属学报, 2021.DOI: 10.11817/j.ysxb.1004.0609. 2021-42083http://dx.doi.org/10.11817/j.ysxb.1004.0609.2021-42083.
Zhao Pingping, Song Yingwei, Dong Kaihui, et al. Study on the galvanic corrosion of Ti-Al coupling and control measurements [J]. The Chinese Journal of Nonferrous Metals, 2021. DOI: 10.11817/j.ysxb.1004.0609.2021-42083http://dx.doi.org/10.11817/j.ysxb.1004.0609.2021-42083.
陈兴伟, 吴建华, 王佳, 等. 电偶腐蚀影响因素研究进展[J]. 腐蚀科学与防护技术,2010,22(4):363-366.
Chen Xingwei, Wu Jianhua, Wang Jia, et al. Progress in Research on Factors Influencing Galvanic Corrosion Behavior[J]. Corrosion Science and Protection Technology, 2010, 22(4): 363-366.
朱祖芳. 铝合金阳极氧化与表面处理技术[M]. 北京:化学工业出版社, 2010.
褚武扬. 氢脆和应力腐蚀[M]. 北京:科学出版社, 2013.
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