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镍箔对DP980/A6061异种激光焊接接头组织性能的影响

Effect of Nickle Foil on Microstructure Properties of DP980/A6061 Dissimilar Laser Welded Joints

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摘要

对DP980板和A6061板进行了激光搭接焊试验,对比分析了镍箔对焊接接头焊缝(WS)和熔合线(FL)的显微组织、显微硬度及拉剪性能的影响。结果表明,对于未添加镍箔样品,铝元素进入熔池内导致WS和FL处形成大量软质相δ铁素体和部分板条马氏体(LM),钢/铝界面处析出脆性FeAl2、FeAl3金属间化合物,金属间化合物层的峰值厚度约为50 μm,拉伸过程中焊接接头在界面处发生脆性断裂;对于添加镍箔样品,镍元素抑制了Fe-Al冶金反应的进行,促使δ铁素体向奥氏体转变,在室温下WS获得了全LM组织,WS硬度升高,界面处形成了Ni-Al金属间化合物,界面处的硬度和脆性Fe-Al金属间化合物层的厚度减小。镍箔使焊接接头的强度提高至61 MPa,是未添加镍箔样品的1.4倍。

Abstract

The experiment of the laser overlapped welding for the DP980 and A6061 sheets is conducted and the influences of the nickel foil on the microstructure, the microhardness and the tensile shear property of the weld seam (WS) and the fusion line (FL) of the laser welded joints are compared and analyzed. The results show that, as for the sample without the nickel foil, the entry of the Al element into the weld pool results in the formation of a large number of soft phase δ ferrites and some lath martensites (LM) within the WS and FL. The brittle intermetallic compounds of FeAl2 and FeAl3 separate out near the steel-Al interface, whose peak thickness is about 50 μm, and thus there occur brittle fractures of welded joints at the interface during the tensile process. In contrast, as for the sample with the nickel foil, the nickel element effectively suppresses the Fe-Al metallurgical reaction, and thus the transformation of δ ferrites into austenite is promoted. At room temperature, the WS obtains the full LM microstructure. The WS hardness increases, there occurs the Ni-Al intermetallic compound near the interface, and both the hardness at interface and the thickness of the Fe-Al intermetallic compound layer decrease. The nickel foil makes the laser welded joint strength increase up to 61 MPa, which is 1.4 times that of the sample without the nickel foil.

Newport宣传-MKS新实验室计划
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中图分类号:TG456.7

DOI:10.3788/cjl201845.1102002

所属栏目:激光制造

基金项目:国家自然科学基金(51775102)、中国博士后基金第11批特别资助(2018T110542)、江苏省研究生科研与实践创新计划(KYCX18_2507)

收稿日期:2018-03-08

修改稿日期:2018-04-16

网络出版日期:2018-06-21

作者单位    点击查看

陈夏明:苏州大学沙钢钢铁学院, 江苏 苏州 215021
王晓南:苏州大学沙钢钢铁学院, 江苏 苏州 215021
颜倩:苏州大学沙钢钢铁学院, 江苏 苏州 215021
王高松:东北大学材料电磁过程研究教育部重点实验室, 辽宁 沈阳 110819
胡增荣:苏州大学轨道交通学院, 江苏 苏州 215021
张敏:苏州大学机电与工程学院, 江苏 苏州 215021
陈长军:苏州大学机电与工程学院, 江苏 苏州 215021

联系人作者:王晓南(wxn@suda.edu.cn); 陈夏明(1962923837@qq.com);

【1】Haferkamp H, Meier O, Harley K. Laser beam welding of new high strength steels for auto body construction[J]. Key Engineering Materials, 2007, 344: 723-730.

【2】Zhang D S. The development status and prospect of China′s new energy industry[J]. Economics & Management Strategies Journal, 2012(1): 67-77.
张东胜. 我国新能源产业发展现状及展望[J]. 经济与管理战略研究, 2012(1): 67-77.

【3】Li X, Tang J G, Zhang X M, et al. Effect of temperature deformation on the natural aging and mechanical properties of automotive body 6061 aluminum alloy[J]. The Chinese Journal of Nonferrous Metals, 2016, 26(1): 1-6.
李翔, 唐建国, 张新明, 等. 温变形对汽车车身用6061铝合金自然时效及力学性能的影响[J]. 中国有色金属学报, 2016, 26(1): 1-6.

【4】Yang J, Zhang H, Li Y L. A study on problems of laser welding of aluminum and steel dissimilar materials[J]. Applied Laser, 2013, 33(5): 555-562.
杨瑾, 张华, 李玉龙. 铝/钢异种材料激光焊接现状与展望[J]. 应用激光, 2013, 33(5): 555-562.

【5】Ozaki H, Kutsuna M, Nakagawa S, et al. Laser roll welding of dissimilar metal joint of zinc coated steel to aluminum alloy[J]. Journal of Laser Applications, 2010, 22(1): 1-6.

【6】Meco S, Ganguly S, Williams S, et al. Effect of laser processing parameters on the formation of intermetallic compounds in Fe-Al dissimilar welding[J]. Journal of Materials Engineering and Performance, 2014, 23(9): 3361-3370.

【7】Peyre P, Sierra G, Deschaux-Beaume F, et al. Generation of aluminium-steel joints with laser-induced reactive wetting[J]. Materials Science and Engineering A, 2007, 444(1/2): 327-338.

【8】Mathieu A, Shabadi R, Deschamps A,et al. Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire)[J]. Optics & Laser Technology, 2007, 39(3): 652-661.

【9】Dharmendra C, Rao K P, Wilden J, et al. Study on laser welding-brazing of zinc coated steel to aluminum alloy with a zinc based filler[J]. Materials Science and Engineering: A, 2011, 528(3): 1497-1503.

【10】Yang J, Yu Z S, Li Y L, et al. Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing[J]. Welding in the World, 2018, 62(2): 427-433.

【11】Zhou D W, Xu S H, Zhang L J, et al. Microstructure, mechanical properties, and electronic simulations of steel/aluminum alloy joint during deep penetration laser welding[J]. The International Journal of Advanced Manufacturing Technology, 2017, 89(1/2/3/4): 377-387.

【12】Zhou D W, Xu S H, Peng L, et al. Laser lap welding quality of steel/aluminum dissimilar metal joint and its electronic simulations[J]. The International Journal of Advanced Manufacturing Technology, 2016, 86(5/6/7/8): 2231-2242.

【13】Chen S H, Huang J H, Yang D D, et al. Influence of Ni-foil interlayer on laser penetration welding of stainless steel to aluminium alloy[J]. Transactions of the China Welding Institution, 2012, 33(8): 9-12.
陈树海, 黄继华, 杨冬冬, 等. 镍箔中间层对不锈钢/铝合金激光深熔焊的影响[J]. 焊接学报, 2012, 33(8): 9-12.

【14】Chen S H, Huang J H, Ma K, et al. Influence of a Ni-foil interlayer on Fe/Al dissimilar joint by laser penetration welding[J]. Materials Letters, 2012, 79(23): 296-299.

【15】Tseng C C, Shen Y, Thompson S W, et al. Fracture and the formation of sigma phase, M23C6, and austenite from delta-ferrite in an AlSl 304L stainless steel[J]. Metallurgical and Materials Transactions A, 1994, 25(6): 1147-1158.

【16】Wang X N, Chen X M, Sun Q, et al. Formation mechanism of δ-ferrite and metallurgy reaction in molten pool during press-hardened steel laser welding[J]. Materials Letters, 2017, 206: 143-145.

【17】Zhang Z, Farrar R A. Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals[J]. Welding Journal, 1997, 76(5): 183s-196s.

【18】Kang B Y, Kim H J, Hwang S K. Effect of Mn and Ni on the variation of the microstructure and mechanical properties of low-carbon weld metals[J]. Transactions of the Iron & Steel Institute of Japan, 2000, 40(12): 1237-1245.

【19】Bohemen S M C, Sietsma J. Martensite formation in partially and fully austenitic plain carbon steels[J]. Metallurgical and Materials Transactions A, 2009, 40(5): 1059-1068.

【20】Campbell C E, Kattner U R. A thermodynamic assessment of the Ni-Al-B system[J]. Journal of Phase Equilibria, 1999, 20(5): 485-496.

【21】Saha D C, Biro E, Gerlich A P, et al. Fiber laser welding of Al-Si-coated press-hardened steel[J]. Welding Journal, 2016, 95(5): 147-s-156-s.

【22】Guo P F, Wang X N, Zhu G H, et al. Microstructures and properties of X100 pipeline steel joints by fiber laser welding[J]. Chinese Journal of Lasers, 2017, 44(12): 1202003.
郭鹏飞, 王晓南, 朱国辉, 等. X100管线钢光纤激光焊接头的显微组织及性能[J]. 中国激光, 2017, 44(12): 1202003.

【23】Guo J T, Yuan C, Hou J S. Effect of rare earth elements on NiA1-based alloys[J]. Acta Metallurgica Sinica, 2008, 44(5): 513-520.
郭建亭, 袁超, 侯介山. 稀土元素在NiAl合金中的作用[J]. 金属学报, 2008, 44(5): 513-520.

【24】Wang Z X. Vacuum diffusion bonding of SiC paniculate reinforced LD2 matrix composite[D]. Jinan: Shandong University, 2008.
王中晓. SiC颗粒增强LD2复合材料的真空扩散焊[D]. 济南: 山东大学, 2008.

引用该论文

Chen Xiaming,Wang Xiaonan,Yan Qian,Wang Gaosong,Hu Zengrong,Zhang Min,Chen Changjun. Effect of Nickle Foil on Microstructure Properties of DP980/A6061 Dissimilar Laser Welded Joints[J]. Chinese Journal of Lasers, 2018, 45(11): 1102002

陈夏明,王晓南,颜倩,王高松,胡增荣,张敏,陈长军. 镍箔对DP980/A6061异种激光焊接接头组织性能的影响[J]. 中国激光, 2018, 45(11): 1102002

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