Paper Info
Title
Numerical simulation on the effect of welding parameters on welding residual stresses in T92/S30432 dissimilar welded pipe.
Abstract
Dissimilar welded joints are commonly used in fossil power plants to connect martensitic steel components and austenitic stainless steel piping systems. The integrity for such welded structures is depended on residual stresses induced by manufacturing process. In this paper, the characteristics of residual stresses on the dissimilar welded pipe between T92 steel and S30432 steel were investigated using finite element method. Moreover, the effects of heat input, groove shape and layer number on the residual stress distribution were studied to find the approach to reduce the residual stress. The numerical results revealed that the hoop and axial stress in heat affected zone (HAZ) of T92 steel side of the dissimilar welded joint had sharp gradients. By decreasing the groove angle, the peak values of the hoop and axial stress on T92 steel side were reduced greatly while the peak values in welded metal and HAZ of S30432 steel side differed little. Furthermore, more layer number and less heat input decreased the peak value of the tensile residual stress on welded metal and S30432 steel side, but had little effect on the residual stress in T92 steel side.
Year
DOI
Venue
2014
10.1016/j.advengsoft.2013.12.004
Advances in Engineering Software
Keywords
Field
DocType
peak value,axial stress,austenitic stainless steel,welding parameter,t92 steel,s30432 steel side,residual stress,s30432 steel,heat input,numerical simulation,t92 steel side,martensitic steel component,welding residual stress,finite element analysis
Cylinder stress,Groove (music),Computer science,Residual stress,Piping,Austenitic stainless steel,Metallurgy,Heat-affected zone,Ultimate tensile strength,Welding
Journal
Volume
ISSN
Citations 
68
0965-9978
2
PageRank 
References 
Authors
0.61
0
6
Name
Order
Citations
PageRank
Lei Zhao132.59
Jun Liang220.61
Qunpeng Zhong320.95
Chao Yang420.61
Biao Sun520.61
Jinfeng Du613414.86