In-situ weld-alloying plasma arc welding of SiC_p/Al MMC

作     者：雷玉成 袁为进 陈希章 朱飞 程晓农 

作者机构：School of Materials Science and Engineering Jiangsu University 

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：2007年第17卷第2期

页      面：313-317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(50475126) supported by the National Natural Science Foundation of China 

主　　题：SiCp/AlMMC 原位焊接合金化 等离子体弧焊 金属基复合材料 

摘      要：Plasma arc welding was used to join SiCp/Al composite with titanium as alloying filler material. Microstructure of the weld was characterized by an optical microscope. The results show that the harmful needle-like phase Al4C3 is completely eliminated in the weld of SiCp/Al metal matrix composite(MMC) by in-situ weld-alloying/plasma arc welding with titanium as the alloying element. The wetting property between reinforced phase and Al matrix is improved, a stable weld puddle is gotten and a novel composite-material welded joint reinforced by TiN, AlN and TiC is produced. And the tensile-strength and malleability of the welded joints are improved effectively because of the use of titanium.