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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/10509

Title: An experimental and theoretical study of gas tungsten arc welding of stainless steel plates with different sulfur concentrations
Authors: MISHRA, S
LIENERT, TJ
JOHNSON, MQ
DEBROY, T
Keywords: heat-transfer
surface-tension
fluid-flow
field
metal
pool
Issue Date: 2008
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: ACTA MATERIALIA, 56(9), 2133-2146
Abstract: 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 .
URI: 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
ISSN: 1359-6454
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