摘要
为比较两种钎料对紫铜的焊接性,分别分析了HL204和BCuP-5这两种铜磷钎料的熔化性能、熔化后的相组成、焊缝组织以及焊缝中元素的扩散。实验结果表明,两种钎料都可以形成性能优良的焊缝;BCuP-5的熔化区间较窄;两种钎料形成的焊缝组织都主要是亚共晶组织,初生相为富Ag和P的α(Cu)固溶体,共晶体的组分为α(Cu)固溶体+Cu3P;BCuP-5钎料形成的焊缝组织要比HL204更为有方向性,生成的灰色相大部分都平行于母材呈层片状分布,而HL204所形成的焊缝中各相分布较为弥散。
The melting performance, phase composition after melting, microstructure of weld and diffusion of element of HL204 and BCuP-5 were studied. The results show that excellent brazed joint is got and the melting range of BCuP-5 is more narrow than that of HL204. The weld microstructure of two brazing filler metals is hypoeutectic, the primary phase is α（Cu）copper solid solution and the eutectic includes α （Cu）copper solid solution and Cu3P. The microstructure of weld which is got using BCuP-5 is more regular than that usmg HL204.
出处
《热加工工艺》
CSCD
北大核心
2008年第21期117-119,共3页
Hot Working Technology
关键词
铜磷钎料
钎焊
润湿
phosphor-copper brazing filler
brazing
wetting
