J. Mater. Sci. Technol. ›› 2011, Vol. 27 ›› Issue (4): 377-381.

• Reviews • 上一篇    下一篇

Ag含量对采用Ag-Cu-Zn-Sn钎料感应钎焊黄铜/钢接头微观组织及性能的影响

曹健1,张丽霞2,王厚勤1,冯吉才1   

  1. 1. 哈尔滨工业大学
    2. 哈尔滨工业大学材料学院焊接系
  • 收稿日期:2009-05-05 修回日期:2009-11-19 出版日期:2011-04-28 发布日期:2011-04-28
  • 通讯作者: 曹健
  • 基金资助:

    TiAl 与C/C 复合材料高效节能连接方法及纳米中间层自蔓延反应机理研究

Effect of Silver Content on Microstructure and Properties of Brass/steel Induction Brazing Joint Using Ag-Cu-Zn-Sn Filler Metal

J. Cao, L.X. Zhang, H.Q. Wang, L.Z. Wu, J.C. Feng   

  1. 1) State Key Lab of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China
    2) Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, China
  • Received:2009-05-05 Revised:2009-11-19 Online:2011-04-28 Published:2011-04-28
  • Contact: Cao Jian
  • Supported by:

    the National Natural Science Foundation of China (No. 50805038) and Program for New Century Excellent Talents in University

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摘要： 本文采用Ag-Cu-Zn-Sn钎料进行了黄铜与钢的感应钎焊。文中利用光学分析、扫描电镜和电子探针方法重点分析了Ag含量对接头组织和性能的影响。采用Ag-Cu-Zn-Sn钎料可以得到无缺陷的接头，接头的微观组织主要包括Ag基固溶体和Cu基固溶体。Ag含量和冷却速度的增加均导致接头针状组织的增加。接头剪切强度随着Ag含量的增加而降低，采用Ag25CuZnSn时能够得到剪切强度445MPa,研究发现采用Ag-Cu-Zn-Sn钎料时所有的接头断口均为塑性特征。

Abstract: The induction brazing of brass to steel using Ag-Cu-Zn-Sn filler metal was investigated in this study. The influence of Ag content on the microstructure and properties were analyzed by means of optical microscopy, scanning electron microscopy and electron probe microanalysis. Defect free joint was achieved using Ag- Cu-Zn-Sn filler metal. The microstructure of the joint was mainly composed of Ag-based solid solution and Cu-based solid solution. The increase of Ag content and the cooling rate both led to the increase of the needle like eutectic structure. The tensile strength decreased with the increase of Ag content. The tensile strength at room temperature using Ag25CuZnSn filler metal reached 445 MPa. All fractures using Ag-Cu-Zn-Sn filler metal presented ductile characteristic.

Key words: Induction brazing, Brass, Steel, Microstructure, Tensile strength