Geometrical and Welding Conditions on Through-Thickness Residual Stress in Primary Piping of Girth Welded Joints

Abstract:

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Recently, stress corrosion cracking (SCC) of primary piping of stainless steel has been observed. SCC is considered to initiate and progress at near the welding zone in butt-welded pipes, because of the tensile residual stress introduced by welding. In present work, three-dimensional and axisymmetric thermo-elastic-plastic finite element analyses have been carried out, in order to clarify the effect of geometrical and welding conditions on through-thickness residual stress. In particular, butt-welding joints of SUS316L pipes have been examined. The residual stress was simulated by three-dimensional and axisymmetric models and the results were compared and discussed in detail.

Info:

Periodical:

Materials Science Forum (Volumes 580-582)

Edited by:

Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na

Pages:

573-576

DOI:

10.4028/www.scientific.net/MSF.580-582.573

Citation:

J. Katsuyama et al., "Geometrical and Welding Conditions on Through-Thickness Residual Stress in Primary Piping of Girth Welded Joints", Materials Science Forum, Vols. 580-582, pp. 573-576, 2008

Online since:

June 2008

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Price:

$35.00

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