Microstructure and Mechanical Properties of Ordinary and Fast-Cooling Al-Si-Zn Filler Metals
摘 要
向Al-Si钎料中添加质量分数为0.1%~7.0%的锌粉, 采用电弧炉熔炼法和单辊熔体快淬法制备了普通和急冷Al-Si-Zn钎料, 并用这两种钎料对304不锈钢和6063铝合金进行钎焊, 研究了这两种钎料的组织、抗拉强度以及钎焊接头的抗剪强度。结果表明: 随着锌粉添加量增加, 两种钎料的润湿角均减小; 与普通钎料相比, 急冷钎料的晶粒更加细小, 组织更加均匀; 当添加锌粉的质量分数为0.5%~3%时, Al-Si-Zn相呈弥散状, 钎料强度较高; 当添加锌粉的质量分数超过3%后, Al-Si-Zn相呈聚集状, 钎料强度较低; 成分相同时, 急冷钎料的抗拉强度及接头的强度都高于普通钎料的; 但急冷钎料仍为细晶结构而非非晶结构, 其组织仍有待改善。
Abstract
Adding Zn powders(mass fraction was 0.1%-7.0%) into Al-Si filler metal, and then ordinary and fast-cooling Al-Si-Zn filler metals were prepared by using arc-melting method and rapid solidification method of single roller. 304 stainless steel and 6063 aluminum were brazed by using the two filler metals. The microstructure and tensile strength of the filler metals, and shear strength of two brazed joints were studied. The results show that wetting angle of the two filler metals increased as Zn powders addition amounts increase. Compared with the ordinary filler metal, the grains size of fast-cooling filler metal was finer, and its microstructure was more uniform; when mass fraction of adding Zn powders was 0.5%-3%, the distribution of Al-Si-Zn phase was dispersive, this enhanced tensile strength of the filler metal; when mass fraction of adding Zn powders was over 3%, the tensile strength of the filler metal decreased due to collective Al-Si-Zn. For the filler metals with same composition, the tensile strength of fasr-cooling filler metal was higher, and the shear strength of brazed joint from fast-cooling filler metal was higher,too. But the microstructure of fast-cooling filler metal was still crystal structure instead of amorphous structure, its microstructure still need to be improved.
中图分类号 TG456.7 DOI 10.11973/jxgccl201611009
所属栏目 试验研究
基金项目 河南科技大学大学生SRTP项目(2015021)
收稿日期 2015/10/14
修改稿日期 2016/8/22
网络出版日期
作者单位点击查看
备注刘树英(1961-), 女, 内蒙古呼和浩特人, 教授。
引用该论文: LIU Shu-ying,LIU Ya-zhou,LI Wu-hui,ZHANG Dong-dong,MAO Zhong-quan,SUZUMURA Akio. Microstructure and Mechanical Properties of Ordinary and Fast-Cooling Al-Si-Zn Filler Metals[J]. Materials for mechancial engineering, 2016, 40(11): 44~48
刘树英,刘亚洲,李武会,张冬冬,毛钟泉,鈴村暁男. 普通与急冷Al-Si-Zn钎料的显微组织与力学性能[J]. 机械工程材料, 2016, 40(11): 44~48
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参考文献
【1】鲍俊娟, 高志广, 李川, 等. 2A50铝合金钎焊钎料与钎剂的选择[J]. 机械工程材料, 2006, 30 (12): 40-43.
【2】SONG U, SAIDA I, ANTO A, et al. Brazability of aluminum alloys to steels using aluminum filler metal[J]. Welding Society Thesis Collection, 2004, 22(2): 315-322.
【3】IKESHOJI T T, LIU S Y, SUZUMURA A, et al. Effect of isothermal solidification behavior of Al-Si brazing filler layer on the braze-ability of Al-alloy to stainless steel in the air[J]. Welding Society Thesis Collection, 2006, 24 (4): 362-367.
【4】LIU Shu-ying, SUZUMURA A, IKESHOJI T T, et al. The research for reason of difficulty brazing of aluminum alloys to stainless steel in the air[J]. Welding Technology, 2009, 38 (6): 12-16.
【5】YU Wei-yuan, CHEN Xue-ding, LU Wen-jiang. Performance of fast solidify Al-Si-Cu brazing filler metal[J]. Transactions of the China Welding Institution, 2004, 25 (2): 69-72.
【6】曹金山,路文江,俞伟元,等.Al-Si-Cu-Zn-Sn快速凝固薄带钎料的制备及其性能研究[J]. 热加工工艺, 2009, 38 (11): 34-36.
【7】邹家生, 吕思聪, 赵宏权,等Al-Si-Cu-Zn急冷钎料钎焊铝及铝合金的界面结构及强度[J]. 焊接学报, 2008, 29(3): 77-80.
【8】YU Jue-qi, CHEN Min-gan, GAO Xiang-shan. Investigation of characteristics of rapidly solidified brazing ribbon of Al-Si based alloy[J]. Transactions of the China Welding Institution, 1994, 15(2): 67-74.
【9】肖克来提,盛玫,罗乐. Ag-Pd和Ni对无铅钎料焊点形状微结构及剪切强度的影响[J].金属学报, 2001,37(6): 648-652.
【10】俞伟元,路文江, 陈学定, 等. 快速凝固Al-Zn-Si基钎料性能的研究[J].兰州理工大学学报, 2004,30(6): 13-15.
【11】王冠,俞伟元, 陈学定, 等.快冷与普通Al-Si钎料中Si的扩散行为研究[J].兰州理工大学学报, 2005, 31(3): 14-17.
【12】马志, 闫久春, 张旭昀. 铝钎焊用锌基合金钎料的制备及钎焊接头的组织和抗剪强度[J]. 机械工程材料, 2015, 39 (2): 85-89.
【13】鈴木鼎, 加賀山実, 竹内庸. Al-Si-Zn系の共晶相平衡と低温ろう付の可能性[J]軽金属, 1993, 43(10): 533-538.
【2】SONG U, SAIDA I, ANTO A, et al. Brazability of aluminum alloys to steels using aluminum filler metal[J]. Welding Society Thesis Collection, 2004, 22(2): 315-322.
【3】IKESHOJI T T, LIU S Y, SUZUMURA A, et al. Effect of isothermal solidification behavior of Al-Si brazing filler layer on the braze-ability of Al-alloy to stainless steel in the air[J]. Welding Society Thesis Collection, 2006, 24 (4): 362-367.
【4】LIU Shu-ying, SUZUMURA A, IKESHOJI T T, et al. The research for reason of difficulty brazing of aluminum alloys to stainless steel in the air[J]. Welding Technology, 2009, 38 (6): 12-16.
【5】YU Wei-yuan, CHEN Xue-ding, LU Wen-jiang. Performance of fast solidify Al-Si-Cu brazing filler metal[J]. Transactions of the China Welding Institution, 2004, 25 (2): 69-72.
【6】曹金山,路文江,俞伟元,等.Al-Si-Cu-Zn-Sn快速凝固薄带钎料的制备及其性能研究[J]. 热加工工艺, 2009, 38 (11): 34-36.
【7】邹家生, 吕思聪, 赵宏权,等Al-Si-Cu-Zn急冷钎料钎焊铝及铝合金的界面结构及强度[J]. 焊接学报, 2008, 29(3): 77-80.
【8】YU Jue-qi, CHEN Min-gan, GAO Xiang-shan. Investigation of characteristics of rapidly solidified brazing ribbon of Al-Si based alloy[J]. Transactions of the China Welding Institution, 1994, 15(2): 67-74.
【9】肖克来提,盛玫,罗乐. Ag-Pd和Ni对无铅钎料焊点形状微结构及剪切强度的影响[J].金属学报, 2001,37(6): 648-652.
【10】俞伟元,路文江, 陈学定, 等. 快速凝固Al-Zn-Si基钎料性能的研究[J].兰州理工大学学报, 2004,30(6): 13-15.
【11】王冠,俞伟元, 陈学定, 等.快冷与普通Al-Si钎料中Si的扩散行为研究[J].兰州理工大学学报, 2005, 31(3): 14-17.
【12】马志, 闫久春, 张旭昀. 铝钎焊用锌基合金钎料的制备及钎焊接头的组织和抗剪强度[J]. 机械工程材料, 2015, 39 (2): 85-89.
【13】鈴木鼎, 加賀山実, 竹内庸. Al-Si-Zn系の共晶相平衡と低温ろう付の可能性[J]軽金属, 1993, 43(10): 533-538.
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