Ni、Mn元素对AgCuZn钎料润湿特性的影响  

Effects of Ni, Mn Elements on Wettability of AgCuZn Brazing Filler Metals

作　　者：杜全斌 张黎燕[1] 龙伟民 王星星[3] DU Quanbin;ZHANG Liyan;LONG Weimin;WANG Xingxing(Henan Key Laboratory of Intelligent Manufacturing Equipment Integration for Superhard Materials,Henan Mechanical and Electrical Vocational College,Xinzheng 451191,China;State Key Laboratory of Advanced Brazing Filler Metals and Technology,Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450000,China;School of Mechanical Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]河南机电职业学院河南省超硬材料智能制造装备集成重点实验室,河南新郑451191 [2]郑州机械研究所有限公司新型钎焊材料与技术国家重点实验室,河南郑州450000 [3]华北水利水电大学机械工程学院,河南郑州450045

出　　处：《热加工工艺》2021年第15期141-144,148,共5页Hot Working Technology

基　　金：河南省科技公关项目(192102210059,192102210060);河南省高等学校重点科研项目(20B460005)。

摘　　要：为揭示Ag CuZn钎料的润湿铺展特性,研究了Ni、Mn元素对Ag CuZn钎料在201不锈钢表面润湿特性的影响。结果表明,Y1(BAg45CuZn)、Y2(BAg40CuZnNi)和Y3(BAg49ZnCuMnNi)钎料凝固组织均由灰白色的富Ag相和灰黑色富Cu相组成,Ni、Mn元素可细化钎料中富Cu相,使界面区富Cu相由断续分布的粗大树枝晶逐渐向断续分布的"痘点状"胞状晶及连续分布的小块胞状晶转变。3种钎料润湿性由好到差依次为:Y3、Y2、Y1,其原因是Ni、Mn元素降低界面富Cu相与试板间的界面张力,随着界面富Cu相由断续向连续状转变,钎料在试板上的润湿性逐渐提高。In order to reveal the wettability spreading of Ag CuZn brazing filler metal, effects of Ni, Mn elements on the wettability of Ag CuZn brazing filler metals on surface of 201 stainless steel were studied. The results show that the microstructure of Y1(BAg45 CuZn)、Y2(BAg40 CuZnNi) and Y3(BAg49 ZnCuMnNi) brazing filler metals are mainly composed of grayish-white Ag-rich phase and grayish-black Cu-rich phase. Cu-rich phase can be refined by Ni, Mn, the morphology of Cu-rich phase distributed along the interface is transformed from discontinuous distributed coarse dendrite into discontinuous distributed "pitting like" cellular crystal and continuous distributed small cellular crystal. The order of wettability of three kinds of brazing filler metal from bad to good is Y3, Y2, Y1. The reason is that Ni, Mn can reduce the interfacial tension between the interface Cu-rich phase and the test plate. With the transformation of interface Cu-rich phase from discontinuous distribution into continuous distribution, the wettibility of Ag CuZn brazing filler metals is eventually improved.

关 键 词：润湿角 润湿面积 银基钎料 界面张力 

分 类 号：TG425[金属学及工艺—焊接]