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An experimental and theoretical study of gas tungsten arc welding of stainless steel plates with different sulfur concentrations

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Title An experimental and theoretical study of gas tungsten arc welding of stainless steel plates with different sulfur concentrations
 
Creator MISHRA, S
LIENERT, TJ
JOHNSON, MQ
DEBROY, T
 
Subject heat-transfer
surface-tension
fluid-flow
field
metal
pool
stainless steel
dissimilar sulfur concentrations
welding
 
Description During fusion welding, the presence of sulfur in steel often affects heat and fluid flow in the weld pool and its geometry. While the role of sulfur during welding of stainless steel plates with the same sulfur content is well understood, welding of stainless steel plates containing different concentrations of sulfur has not yet received proper attention. Here we report an experimental and modeling investigation of gas tungsten arc butt welding of stainless steel plates containing different sulfur concentrations. The main variables studied were sulfur concentrations in the two plates, welding current and welding speed. The results show significant shift of the fusion zone toward the low sulfur steel. The asymmetric fusion zone profile with respect to the original joint interface could be quantitatively explained through numerical modeling of heat transfer and fluid flow considering a bead shift observed experimentally. (c) 2008 Elsevier Ltd .
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-23T12:02:30Z
2011-12-26T12:56:26Z
2011-12-27T05:45:11Z
2011-08-23T12:02:30Z
2011-12-26T12:56:26Z
2011-12-27T05:45:11Z
2008
 
Type Article
 
Identifier ACTA MATERIALIA, 56(9), 2133-2146
1359-6454
http://dx.doi.org/10.1016/j.actamat.2008.01.028
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10509
http://hdl.handle.net/10054/10509
 
Language en