Study of Type 316L Stainless Steel TIG Welding with MoO3 Powder

Kuang Hung Tseng; Ko Jui Chuang

doi:10.4028/www.scientific.net/AMR.291-294.901

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 291-294Study of Type 316L Stainless Steel TIG Welding...

Study of Type 316L Stainless Steel TIG Welding with MoO₃ Powder

Abstract:

In the present work, a specific oxide flux was used to systematically investigate the effects of activated tungsten inert gas (TIG) welding on the surface appearance, weld morphology, angular distortion, residual stress, and ferrite structure in type 316L stainless steel plates. MoO₃ flux used was packed in powdered form. The results showed that MoO₃ flux assisted TIG welding technique can produce a significant improvement in power density of heat source and weld aspect ratio, resulting in low angular distortion and residual stress levels. The MoO₃ flux assisted TIG welding associated with a rapid cooling rate of the welds, therefore exhibiting higher ferrite content in austenitic stainless steel 316L weld metals during the solidification after welding.

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Advanced Materials Research (Volumes 291-294)

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901-904

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https://doi.org/10.4028/www.scientific.net/AMR.291-294.901

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Online since:

July 2011

Authors:

Kuang Hung Tseng, Ko Jui Chuang

Keywords:

MoO₃ Powder, Oxide Flux, Stainless Steel (SS), TIG Welding

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