摘要
对非真空熔炼的Zn20SnxCu钎料合金进行了抗拉强度和伸长率的测定,结果表明:随着Cu含量增加,Zn20SnxCu钎料合金抗拉强度逐渐增大,伸长率逐渐降低;当w(Cu)8%时,Zn20Sn8Cu合金的抗拉强度为229.9 MPa,较基体钎料提高了1.86倍,这主要与形成ε-CuZn5金属间化合物的数量和形态有关,且钎料断裂方式由塑性断裂向脆性断裂转变。
Tensile strength and elongation of Zn20SnxCu solder alloys melted by antivacuum furnace were measured.The results showed that tensile strength of Zn20SnxCu solder alloys was improved obviously by adding Cu into Zn20Sn solder and its elongation was decreased with the increasing of the Cu content(less than 8%).When Cu content was 8%,tensile strength of Zn20Sn8Cu solder alloy was 229.9 MPa which was about 1.86 times than that of the matrix solder.It was mainly related to the quantity and shape of the new CuZn5 metal intermetallic compound.The way of fracture was changed from plastic fracture to brittle fracture.
出处
《焊接技术》
北大核心
2011年第11期49-51,79,共3页
Welding Technology
基金
河南省高校科技创新人才支持计划(2010HASTIT032)
河南高等学校青年骨干教师资助计划(09003046)
大学生研究训练计划(SRTP)(2009017)
