简介概要

Dissolution behavior of Cu in Cu-Ag and Cu-P brazing alloys using weld brazing

来源期刊:中国有色金属学报(英文版)2011年第z2期

论文作者:LI Yi-nan WANG Chang-wen PENG Zi-long YAN Jiu-chun LIU Xue-song

文章页码:394 - 399

Key words:weld brazing; dissolution rate; temperature distribution; mechanical performance

Abstract: The dissolution behavior of base metal Cu in the Cu-Ag and Cu-P brazing alloys using weld brazing was researched. The thickness loss of Cu foil in contact with Cu-P and Cu-Ag alloys at 800-920 °C was measured. And the dissolution rate constants in both alloys were calculated as the following relation: kCu-P(T)=10kCu-Ag(T), which explains the special phenomenon that the dissolving amount of copper in Cu-P liquid alloys is larger than that in Cu-Ag alloys under the same condition. As weld brazing has its own characteristics of short reaction time and quick temperature variation in one thermal cycle, the quick dissolution rate of copper in filler metals is the main reason to achieve weld brazing. It can be concluded that element P is indispensable in filler metals compared with element Ag as the function of accelerating dissolution during weld brazing. Finally, the influences of the addition of alloy element on mechanical performance of the welding joints were studied and the design principles of filler metals for weld brazing were proposed to achieve good mechanical performance.

详情信息展示

Dissolution behavior of Cu in Cu-Ag and Cu-P brazing alloys using weld brazing

LI Yi-nan1, 2, WANG Chang-wen1, PENG Zi-long2, YAN Jiu-chun1, LIU Xue-song1

(1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;
2. School of Mechanical Engineering, Qingdao Technological University, Qingdao 266000, China)

Abstract:The dissolution behavior of base metal Cu in the Cu-Ag and Cu-P brazing alloys using weld brazing was researched. The thickness loss of Cu foil in contact with Cu-P and Cu-Ag alloys at 800-920 °C was measured. And the dissolution rate constants in both alloys were calculated as the following relation: kCu-P(T)=10kCu-Ag(T), which explains the special phenomenon that the dissolving amount of copper in Cu-P liquid alloys is larger than that in Cu-Ag alloys under the same condition. As weld brazing has its own characteristics of short reaction time and quick temperature variation in one thermal cycle, the quick dissolution rate of copper in filler metals is the main reason to achieve weld brazing. It can be concluded that element P is indispensable in filler metals compared with element Ag as the function of accelerating dissolution during weld brazing. Finally, the influences of the addition of alloy element on mechanical performance of the welding joints were studied and the design principles of filler metals for weld brazing were proposed to achieve good mechanical performance.

Key words:weld brazing; dissolution rate; temperature distribution; mechanical performance

<上一页 1 下一页 >

相关论文

  • 暂无!

相关知识点

  • 暂无!

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号