钎焊温度对锡基巴氏合金/钢基体过渡层组织的影响  

Effect of Brazing Temperature on the Transition Layer Microstructure of the Steel and Sn Based Babbit Metal

作　　者：张胜全[1] 张博[1] 王一纯[1] 丁业立[2] 

机构地区：[1]兰州理工大学材料科学与工程学院 [2]山东交通学院海运学院

出　　处：《特种铸造及有色合金》2016年第7期694-697,共4页Special Casting & Nonferrous Alloys

摘　　要：采用钎焊的方法将锡基巴氏合金与钢基体结合起来,系统研究了钎焊温度对锡基巴氏合金/钢基体焊缝组织和性能的影响。研究表明,钎焊可以使得锡基巴氏合金和钢基体结合良好,随着钎焊温度的升高,产生了垂直于界面生长的树枝状组织,锡基巴氏合金晶粒组织长大,锡基巴氏合金/钢基体焊缝区域显微硬度先增加后降低。当钎焊温度为320-340℃时硬度（HV）达到141.3-146.2,钎焊过程中产生了Fe和Sn的迁移,Cu在过渡层有富集。The effects of brazing steel matrix were investigated. temperature on the microstructure The results show that the tin based and properties of the Babbitt metal/ Babbitt alloy and steel substrate with good bonding can be observed by brazing. With increasing in brazing temperature, dendritic structure in a vertical to the interface growth is generated, and grains in Sn matrix Babbitt alloy is Coarsened up, so the weld microhardness of tin based Babbitt alloy/steel substrate region is increased firstly and then de- creased. With the brazing temperature of 320- 340 ℃, the micro hardness of the alloy reaches141.3- 146.2HV, meanwhile, the migration of Fe and Sn can be observed in brazing process, and Cu is enriched in the transition layer.

关 键 词：锡基巴氏合金 钎焊 钎焊温度 显微硬度 显微组织 

分 类 号：TG454[金属学及工艺—焊接]