Advances in Fusion Welding Technique of Austenitic Stainless Steels

Kuang Hung Tseng; Hsiang Lin Sung

doi:10.4028/www.scientific.net/KEM.480-481.527

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Advances in Fusion Welding Technique of Austenitic Stainless Steels
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 480-481Advances in Fusion Welding Technique of Austenitic...

Advances in Fusion Welding Technique of Austenitic Stainless Steels

Abstract:

Activated flux assisted tungsten inert gas (TIG) welding of austenitic 316L stainless steel was investigated. Autogenous TIG welding was used to produce a bead-on-plate weld. The FeO, FeS, and FeF2 were selected as the flux powders. The results showed that the FeS and FeO fluxes produced high aspect ratio welds, while the FeF2 flux produced a relatively low aspect ratio weld. The undercut defect was produced with use of the FeS flux. An experimental result suggested the constriction of arc column as a mechanism in improving activated TIG penetration. In addition, activated TIG process can increase the delta-ferrite content in austenitic stainless steel weld metal.

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Periodical:

Key Engineering Materials (Volumes 480-481)

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527-532

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.480-481.527

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Online since:

June 2011

Authors:

Kuang Hung Tseng, Hsiang Lin Sung

Keywords:

Activated Flux, Arc Column, Fusion Welding, Stainless Steel (SS)

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