摘要
研究了Ni元素的加入对Cu-Sn-Ti-Ni钎料钎焊Al_2O_3/Cu的接头强度的影响。结果表明,随着Ni含量的增加,Al_2O_3/Cu的接头强度增加,当Ni含量为4%时,其接头强度达到95.42 MPa,再继续增加Ni,连接强度降低。Cu-Sn-Ti钎料连接的Al_2O_3/Cu的接头断裂位置为近焊缝处的陶瓷断裂;添加Ni元素后,接头断裂位置发生变化:Ni含量低于3%时,为混合型断裂,即部分断裂在近焊缝处的陶瓷,部分断裂在焊缝处;不低于4%时,为焊缝处断裂。采用扫描电镜以及电子能谱仪分析界面的微观结构和成分,分析认为,Ni元素的加入,影响了Ti和Al2O3的反应,从而影响了Al2O3陶瓷和无氧Cu的接头强度。
The effect of the addition of Ni element on the AI203/Cu brazed joint strength with Cu-Sn-Ti-Ni filler metalswas studied.The results show that, with the increase of Ni content, the strength of the joint of AI^O3/Cu increases, when thecontent of Ni is 4%, the strength of the joint reaches 95.42 MPa, and then the content of Ni increases again, and the connectionstrength reduces. The fracture location of the A12OJCu joint brazed with Cu-Sn-Ti filler metal is a ceramic fracture near theweld joint; after adding Ni element, the fracture location changes. The Ni content is lower than 3%, the fracture is a mixedmode, that is, a part of fracture location is in the ceramic near the weld joint, and the others is in the weld joint. When thecontent of Ni is higher than 4%, the weld department fracture appears. The microstructure and composition of the interfacewere analyzed by scanning electron microscope and electron energy spectrometer, the analysis shows that the addition of Niaffects the reaction of Ti and A1203, which affects the connection strength of AI2O3/Cu joint.
出处
《热加工工艺》
CSCD
北大核心
2016年第21期190-193,共4页
Hot Working Technology
基金
广州市科技计划项目(201508030025)
广东省重点实验室建设项目(2012A061400011)
