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요약정보
Au-20Sn合金的急冷制备及钎焊性能 / Au-20Sn Alloys Prepared by Rapid Solidification and Their Brazing Performance
Resource Type
Academic Journal
Authors
赵晓然
;
赵明宣
;
武海军
;
俞建树
;
刘毅
;
许昆
;
ZHAO Xiaoran
;
ZHAO Mingxuan
;
WU Haijun
;
YU Jianshu
;
LIU Yi
;
XU Kun
Source
贵金属 / Precious Metals
. 40(3):17-32
Subject
金属材料
急冷凝固
Au-20Sn合金
显微组织
钎焊
Language
Chinese
ISSN
1004-0676
Online Access
Find it @ DONGA
초록
用单辊旋淬法制备了Au-20Sn合金薄带钎料,利用差示扫描量热分析(DSC)、X射线衍射分析(XRD)及场发射扫描电镜(FESEM)等方法对合金的熔化特性、相组成及显微组织进行了观察分析,并研究了与Cu、Ni基材的焊接性能.结果 表明,急冷钎料合金熔化温度低于共晶点且随铜辊转速发生变化,铜辊转速越快,熔点越低,急冷合金显微组织细小均匀,棒状或卵状δ-AuSn相分布于基体组织上,晶粒尺寸可达纳米级;急冷法抑制了脆性相ζ'-Au5Sn的形成,改善了合金塑性性能;急冷钎料薄带与Cu、Ni基材表面润湿优良,在Cu基材上扩散距离更远,形成无针状组织析出的界面层;与Ni形成疏松的颗粒状IMC层;Cu基体的焊接接头抗剪强度高于Ni基体.
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