Title of article :
Gas tungsten arc welding assisted hybrid friction stir welding of dissimilar materials Al6061-T6 aluminum alloy and STS304 stainless steel
Author/Authors :
HanSur Bang، نويسنده , , HeeSeon Bang، نويسنده , , GeunHong Jeon، نويسنده , , IkHyun Oh، نويسنده , , ChanSeung Ro، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2012
Pages :
8
From page :
48
To page :
55
Abstract :
The aim of this research is to evaluate the potential for using the gas tungsten arc welding (GTAW) assisted hybrid friction stir welding (HFSW) process to join a stainless steel alloy (STS304) to an aluminum alloy (Al6061) in order to improve the weld strength. The difference in mechanical and microstructural characteristics of dissimilar joint by friction stir welding (FSW) and HFSW has been investigated and compared. Transverse tensile strength of approximately 93% of the aluminum alloy (Al6061) base metal tensile strength is obtained with HFSW, which is higher than the tensile strength of FSW welds. This may be due to the enhanced material plastic flow and partial annealing effect in dissimilar materials due to preheating of stainless steel surface by GTAW, resulting in significantly increased elongation of welds. The results indicate that HFSW that integrates GTAW preheating to FSW is advantageous in joining dissimilar combinations compared to conventional FSW.
Journal title :
Materials and Design
Serial Year :
2012
Journal title :
Materials and Design
Record number :
1072603
Link To Document :
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