Activated flux tungsten inert gas welding of 8 mm-thick AISI 304 austenitic stainless steel

作者:Liu Guan-hui; Liu Mei-hua*; Yi Yao-yong; Zhang Yu-peng; Luo Zi-yi; Xu Lei
来源:Journal of Central South University (English Edition), 2015, 22(3): 800-805.
DOI:10.1007/s11771-015-2585-8

摘要

AISI 304 stainless steel plates were welded with activated flux tungsten inert gas (A-TIG) method by utilizing self-developed activated flux. It is indicated from the experimental results that for 8 mm-thick AISI 304 stainless steel plate, weld joint of full penetration and one-side welding with good weld appearance can be obtained in a single pass without groove preparation by utilizing A-TIG welding. Moreover, activated flux powders do not cause significant effect on the microstructure of TIG weld and the mechanical properties of A-TIG weld joints are also superior to those of C-TIG (conventional TIG) welding.