激光毛化对铝/钛激光熔钎焊界面组织及性能的影响
Effect of Laser Surface Texturing on Interfacial Microstructure and MeChanical Properties of Laser Welded-Brazed Al/Ti Joint
- 2022年52卷第6期 页码:78-86
DOI: 10.7512/j.issn.1001-2303.2022.06.09
扫 描 看 全 文
扫 描 看 全 文
檀财旺,张泽水,李昊岳,等.激光毛化对铝/钛激光熔钎焊界面组织及性能的影响[J].电焊机,2022,52(6):78-86.
TAN Caiwang, ZHANG Zeshui, LI Haoyue, et al.Effect of Laser Surface Texturing on Interfacial Microstructure and MeChanical Properties of Laser Welded-Brazed Al/Ti Joint[J].Electric Welding Machine, 2022, 52(6): 78-86.
针对铝/钛接头界面脆性化合物层导致接头性能变差的问题,采用纳秒激光器对钛合金表面进行点阵和直线处理,改变表面微观形貌,并开展6061铝合金和TC4钛合金激光熔钎焊。结果表明,随着点间距的减小,钎料铺展能力显著增强,激光表面毛化处理有效改善了焊缝表面成形,且直线处理的效果弱于点阵处理;毛化处理对于界面化合物的种类影响不大,均为脆性Ti-Al化合物,主要是改变了凹坑处化合物的生长方向和形态;点阵式处理使铝/钛激光焊接接头拉伸载荷提升5%~21%,毛化处理的凹坑很好地阻碍了裂纹的扩展,而直线式处理对铝/钛接头的性能影响不大。指出了下一步的工作重点是如何在毛化处理的前提下提高熔融钎料的润湿效果,在改善接头力学性能的同时保证异种金属的润湿。
In order to solve the problem that the brittle compound layer at the interface of the Al/Ti joint leads to the deterioration of joint performance, a nanosecond laser was used to treat the titanium alloy surface with laser surface texturing to change the surface microstructure. Then, laser brazing of 6061 aluminum alloy and TC4 titanium alloy was carried out. The study showed that the laser surface texturing effectively improved the weld surface formation, with a significant increase in brazing spreading ability as the dot density increased, linear processing was weaker than dot matrix processing. The laser texturing had little effect on the types of interfacial compounds, which were brittle Ti Al compounds, and more importantly, it changed the direction of growth and morphology of the compound in the pits. The properties of Al / Ti laser welded joints were improved by 5%~21% after dot matrix processing. The pits of texturing treatment hindered the crack propagation, while the linear processing had little effect on the properties of Al / Ti joints. It is pointed out that the next work focus is how to improve the wetting effect of molten solder on the premise of roughening treatment, so as to improve the mechanical properties of joints and ensure the wetting of dissimilar metals at the same time.
激光毛化激光熔钎焊异种金属润湿界面
laser surface texturinglaser welding-brazingdissimilar metalswettinginterface
李洪剑. 基于空间电子束热源的TA2纯钛/2024铝合金熔钎焊工艺及机理研究[D]. 黑龙江:哈尔滨工业大学,2016.
Li H J. Process and mechanism research of welding-brazed TA2 pure titanium to 2024 aluminum alloy joint based on space electron beam heat source[D]. Heilongjiang: Harbin Institute of Technology, 2016.
李明骜. B和C元素对TiAl合金高温变形组织及性能影响研究[D]. 黑龙江:哈尔滨工业大学,2019.
Li M A. Effect of boron or carbon on the high temperature deformation microstructure and mechanical properties of TiAl alloy[D]. Heilongjiang: Harbin Institute of Technology,2019.
Vaidya W V, Horstmann M, Ventzke V, et al. Improving interfacial properties of a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications[J]. Journal of Materials Science, 2010,45(22):6242-6254.
Schubert E, Klassen M, Zerner I, et al. Light-weight structures produced by laser beam joining for future applications in automobile and aerospace industry[J]. Journal of Materials Processing Tech, 2001,115(1):2-8.
刘中青, 刘凯. 异种金属焊接技术指南[M].北京:机械工业出版社, 1997.
Liu Z Q, Liu K. Technical Guide for Dissimilar metal welding[M]. Beijing: China Machine Press, 1997.
何杨宇, 杨素媛, 包明明, 等. 激光焊接钛合金接头的组织演变和力学行为[J]. 稀有金属, 2021,45(8):914-920.
He Y Y, Yang S Y, Bao M M, et al. Microstructure Evolution and Mechanical Properties of Laser Welded Joint of Titanium Alloy Plate[J]. Chinese Journal of Rare Metals, 2021,45(8):914-920.
倪加明, 李俐群, 陈彦宾, 等. 铝/钛异种合金激光熔钎焊接头特性[J]. 中国有色金属学报, 2007,17(4):617-622.
Ni J M, Li L Q, Chen Y B, et al. Characteristics of Laser Welding-brazing Joint of Al/Ti Dissimilar Alloys[J]. THE CHINESE JOURNAL OF NONFERROUS METALS, 2007,17(4):617-622.
姜雨昂. 浅析钛合金与铝合金异种金属焊接技术[J]. 中国设备工程, 2022(22): 128-130.
Jiang Y A. Analysis of Dissimilar Metal Welding Technology of Titanium Alloy and Aluminum Alloy[J]. China Plant Engineering, 2022(22):128-130.
陈曦, 姜楠, 毕江, 等. 钛/铝激光熔钎焊接头原位TEM拉伸断裂行为[J]. 焊接学报, 2021,42(11): 22-28,98.
Chen X, Jiang N, Bi J, et al. In-situ TEM tensile fracture behavior of Titanium/Aluminum laser brazing joint[J]. Transactions of The China Welding Institution, 2021,42(11): 22-28,98.
焉伟哲. 激光焊接技术的应用研究[J]. 大科技, 2017(1):212.
Yan W Z. Research on Application of Laser Welding Technology[J]. Super Science, 2017(1): 212.
李路雨, 胡永俊, 李风, 等. 几种常见合金的激光扫描焊接特性及研究现状[J]. 电焊机, 2022, 52(2):26-35.
Li L Y, Hu Y J, Li F, et al. Laser Scanning Welding Characteristics and Research Status of Several Common Alloys[J]. Electric Welding Machine, 2022,52(2):26-35.
郭亮, 吴子华, 陈鱼, 等. 扫描速率对钛/铝异种合金激光焊接质量的影响[J]. 应用激光, 2018, 38(2): 230-235.
Guo L, Wu Z H, Chen Y, et al. Effect of Scanning Speed on Laser Welding Quality of Ti/Al Dissimilar Alloys[J]. Applied Laser, 2018,38(2): 230-235.
王利民, 汤超, 卢才璇, 等. 铝钛异种材料激光偏置焊接接头微观组织研究[J]. 应用激光, 2022, 42(01):1-8.
Wang L M, Tang C, Lu C X, et al. Research on the Microstructure of Laser Welded Joints of Aluminum Titanium Dissimilar Materials Using Beam Offset[J]. Applied Laser, 2022,42(01):1-8.
Kalaiselvan K, Elango A, Nagarajan N M, et al. Studies on Characteristics of Ti6Al4V/AA2024 Dissimilar Weld Joint Using Laser Beam Focusing from AA2024 Side[J]. Transactions of the Indian Institute of Metals, 2017,70: 2147-2153.
李永梅, 陈利华, 王延龙, 等. 热输入对钛铝异种合金激光自熔钎焊接头组织与力学性能的影响[J]. 热加工工艺,2022. 10.14158/j.cnki.1001-3814.20210738http://dx.doi.org/10.14158/j.cnki.1001-3814.20210738.
Li Y M, Chen L H, Wang Y L, et al. Effect of Heat Input on Microstructure and Mechanical Properties of Laser Self Fluxing Brazed Ti/Al Dissimilar Alloy Joints[J]. Hot Working Technology,2022. 10.14158/j.cnki.1001-3814.20210738.
崔庆龙. 预镀层钛合金与铝合金电弧熔钎焊工艺及界面特征研究[D]. 黑龙江:哈尔滨工业大学, 2013.
Cui Q L. Research on Technology and Interfacial Characteristic of TIG Welding-brazing of Precoating Titanium alloy to Aluminum alloy[D]. Heilongjiang: Harbin Institute of Technology, 2013.
石玗, 梁琪, 张刚, 等. 激光毛化对铝/钢电弧熔钎焊接头界面与性能的影响[J]. 焊接学报, 2020,41(5): 25-29,98.
Shi Y, Liang Q, Zhang G, et al. Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints[J]. Transactions of The China Welding Institution, 2020,41(5): 25-29,98.
Li H, Li L, Huang R, et al. The effect of surface texturing on the laser-induced wetting behavior of AlSi5 alloy on Ti6Al4V alloy[J]. Applied Surface Science, 2021,566:150630.
相关作者
相关机构