Paper Title:
Effect of Ar-N2 Mixed Gas on Morphology and Microstructure of Type 316L Stainless Steel TIG Weld Metal
  Abstract

The aim of the present work was to investigate the effects of specific nitrogen gas additions to argon shielding gas on morphology and microstructure of austenitic stainless steel TIG welds. An autogenous TIG welding process was applied on type 316L stainless steel to produce a bead-on-plate weld. The ferrite content of weld metal was measured using a Feritscope. The results indicated that the arc voltage increase as the amount of nitrogen gas added to the argon atmosphere increases. The retained ferrite content of type 316L stainless steel TIG weld metal decreased rapidly as nitrogen gas addition to the argon shielding gas was increased.

  Info
Periodical
Advanced Materials Research (Volumes 295-297)
Chapter
Chapter 5: Joining Processes and Equipment
Edited by
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Pages
1919-1924
DOI
10.4028/www.scientific.net/AMR.295-297.1919
Citation
K. H. Tseng, K. C. Hsien, "Effect of Ar-N2 Mixed Gas on Morphology and Microstructure of Type 316L Stainless Steel TIG Weld Metal", Advanced Materials Research, Vols. 295-297, pp. 1919-1924, 2011
Online since
July 2011
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Price
$32.00
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