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

被引：0
作者：
Chen, MA [1 ]
Wu, CS [1 ]
Gao, JQ [1 ]
机构：
[1] Shandong Univ, Minist Educ, Key Lab Liquid Struct & Hered Mat, Jinan 250061, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2002年 / 12卷 / 05期
关键词：
SiCp/6061 Al composite; P-TIG; interfacial reaction; filler metal;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
SiCp/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 Al4C3 precipitates than TIG; when welding with P-TIG, addition of Al-Si filler metal can not only prevent from formation of Al4C3, 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 SiCp/6061 Al composite can be successfully welded by P-TIG with addition of Al-Si filler metal.
引用
收藏
页码：805 / 810
页数：6
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