保温时间对不锈钢/碳钢钎焊接头性能的影响  

Effect of Holding Times on Microstructure and Properties of Carbon Steel/Stainless Steel Brazed Joints

作　　者：陆春宇[1] 陈康东[1] 丁毅[1] 孟宪虎[2] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]江苏众信绿色管业科技有限公司,江苏南京210041

出　　处：《铸造技术》2015年第2期475-476,共2页Foundry Technology

摘　　要：采用碳钢/不锈钢Ni-P箔带钎焊工艺,研究了钎焊温度为1 000℃时,不同保温时间对焊接接头组织和性能的影响。结果表明,焊接接头组织主要为Ni3P脆性相和Ni基固溶体。延长保温时间可以减少钎缝中心区块状脆性相的数量,增加不锈钢侧的颗粒状的脆性相,提高接头剪切强度。The effects of holding times on the microstructure and shear strength of carbon steel/stainless steel brazed joints with Ni-P foils at 1 000 ℃ were discussed. The results show that the main phases of the joint are brittle Ni3P and nickel based solid solution. The shear strength of the joints increase with the increase of holding times due to decreasing the bulk brittle phase along the centerline and increasing the granular brittle phase nearby the stainless steel.

关 键 词：碳钢 不锈钢 Ni-P箔带 保温时间 剪切强度 

分 类 号：TG407[金属学及工艺—焊接] TG454