BAg25CuZn钎料钎焊不锈钢的钎缝组织研究  

Microstructure of braze metal of stainless steel brazed with BAg25CuZn alloy

作　　者：潘晖[1] 孙计生[1] 刘效方[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《航空材料学报》2000年第3期94-97,共4页Journal of Aeronautical Materials

摘　　要：对用BAg2 5CuZn钎料火焰和炉中钎焊 1Cr18Ni9Ti不锈钢的钎缝组织及其形成过程进行了研究 ,对两种钎焊方法焊态和退火状态钎缝组织进行了对比分析。研究结果表明 ,两种钎焊方法所得到的钎缝组织均由富铜相、富银相和伪共晶组织构成 ,但由于两种钎焊方法的冷却速度不同 ,造成钎缝组织的形貌有较大差别 。The composition and the formation of braze metal microstructure of stainless steel brazed using BAg25CuZn alloy with oxy acetylene and in a furnace were studied. The microstructures of brazing seams with two brazing methods as brazed and as annealed were analyzed. It is concluded that the microstructure of braze metal consists of rich copper phase, rich silver phase and pseudoeutectic, the cooling speed has a big effect on the microstructure of braze metal, and annealing treatment is beneficial to the homogeneity of microstructure.

关 键 词：银钎料 钎焊 显微组织 不锈钢 

分 类 号：TG454[金属学及工艺—焊接] TG457.11