Welding of SiC particle reinforced 6061 Al matrix composite with pulsed TIG

作     者：陈茂爱 武传松 高进强 

作者机构：Shandong University The Key Laboratory of Liquid Structure and Heredity of Materials Ministry of Education Ji'nan 250061 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2002年第12卷第5期

页      面：805-810页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Project ( 5 9875 0 5 3)supportedbytheNationalNaturalScienceFoundationofChina 

主　　题：SiCp/6061Al 碳化硅 6061铝 复合物 焊料 晶粒强化 界面反应 铝合金 

摘      要：SiC p/6061Al alloy composite was welded by using TIG and pulsed-TIG welding (P-TIG) without addition of filler metal, or with addition of Al-Si or Al-Mg filler metal. The microstructure and properties of the weld were investigated with XRD, OM, TEM, and MTS-810 testing system was used to observe the effect of different welding procedure and filler metals on the microstructure and properties of the weld. Thermodynamic of SiC-Al reaction was used to analyze the tendency of the reaction between SiC particle and Al matrix during welding. The results showed that the P-TIG tends to produce less plate-like Al 4C 3 precipitates than TIG; when welding with P-TIG, addition of Al-Si filler metal can not only prevent from formation of Al 4C 3, but also decrease hot crack sensitivity of weld; the tensile strength of joint of adding Al-Si filler metal is higher than that of adding Al-Mg filler metal. The SiC p/6061Al composite can be successfully welded by P-TIG with addition of Al-Si filler metal.