Activated flux tungsten inert gas welding of 8 mm-thick AISI 304 austenitic stainless steel
来源期刊：中南大学学报(英文版)2015年第3期
论文作者：LIU Guan-hui(刘观辉) LIU Mei-hua(刘美华) YI Yao-yong(易耀勇) ZHANG Yu-peng(张宇鹏) LUO Zi-yi(罗子艺) XU Lei(许磊)
文章页码：793 - 799
Key words：A-TIG welding; activated flux; 304 stainless steel; full penetration; mechanical properties
Abstract: 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.
LIU Guan-hui(刘观辉)1, 2, LIU Mei-hua(刘美华)1, YI Yao-yong(易耀勇)2, ZHANG Yu-peng(张宇鹏)2, LUO Zi-yi(罗子艺)2, XU Lei(许磊)2
(1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
2. Key Laboratory of Modern Welding Technology of Guangdong Province
(Guangdong General Research Institute for Industrial Technology), Guangzhou 510650, China)
Abstract: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.
Key words:A-TIG welding; activated flux; 304 stainless steel; full penetration; mechanical properties
