CuNiMnSi合金加工特性及钎焊性能研究
Study on Workability and Solderability of CuNiMnSi Alloy
王 轶， 郑 晶， 贾志华， 马 光
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作者单位：（西北有色金属研究院，陕西 西安 710016）
中文关键字：钎焊材料； CuNiMnSi合金； 析出相； 加工性能； 钎焊性能
英文关键字：brazing materials; CuNiMnSi alloy; precipitated phase; workability; solderability
中文摘要：研究了CuNiMnSi合金的相结构、加工特性及钎焊性能。结果表明，该合金在晶界及晶内都有第二相析出，第二相主要为Ni3Si相，还有少量Ni31Sil2相，合金加工存在600～700 ℃中温脆性区。CuNiMnSi合金对S-06钢、QCr0.8、1Cr18Ni9Ti的润湿性、铺展性较好，通过研究该合金的熔点、填缝性能、力学性能，得到该合金的最佳钎焊温度为（960±5）℃。
英文摘要：The phase structure, workability and solderability of CuNiMnSi alloy were studied. The results show that the second phase precipitates in grain boundary and intragranular of the alloy, it contains a lot of Ni3Si phases and a few Ni31Sil2 phases. There is medium temperature brittle zone in alloy which is from 600 ℃ to 700 ℃. CuNiMnS alloy has good wettability and spreading property on S-06, QCr0.8 and 1Cr18Ni9Ti. The best brazing temperature of CuNiMnSi alloy is(960±5) ℃ which is obtained by studying the melting point, filling joint performance and mechanical properties of the alloy.