%0 Journal Article
	%A Bintao Wu and  Xiangfang Xu and  Yugang Miao and  Duanfeng Han
	%D 2015
	%J International Journal of Materials and Metallurgical Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 98, 2015
	%T Characteristics and Mechanical Properties of Bypass-Current MIG Welding-Brazed Dissimilar Al/Ti Joints
	%U https://publications.waset.org/pdf/10000885
	%V 98
	%X Joining of 1mm thick aluminum 6061 to titanium TC4
was conducted using Bypass-current MIG welding-brazed, and stable
welding process and good bead appearance were obtained. The Joint
profile and microstructure of Ti/Al joints were observed by optical
microscopy and SEM and then the structure of the interfacial reaction
layers were analyzed in details. It was found that the intermetallic
compound layer at the interfacial top is in the form of columnar
crystal, which is in short and dense state. A mount of AlTi were
observed at the interfacial layer near the Ti base metal while
intermetallic compound like Al3Ti, TiSi3 were formed near the Al base
metal, and the Al11Ti5 transition phase was found in the center of the
interface layer due to the uneven distribution inside the weld pool
during the welding process. Tensile test results show that the average
tensile strength of joints is up to 182.6 MPa, which reaches about
97.6% of aluminum base metal. Fracture is prone to occur in the base
metal with a certain amount of necking.

	%P 338 - 341