Remedies for hydrogen-embrittlement on Grade-91 steel weld joint during long delay in PWHT

Author(s):  
D. Sunilkumar ◽  
Hasan Shaikh ◽  
Harish Chandra Dey ◽  
Shaju K. Albert
2016 ◽  
Vol 853 ◽  
pp. 204-208 ◽  
Author(s):  
Lan Qing Tang ◽  
Hui Fang Li ◽  
Xiao Xiao Wang ◽  
Cai Fu Qian

In this paper, Finite Element Modeling (FEM) using Marc software was carried out to investigate the strain-strengthening effect on residual stress in 06Cr19Ni10 austenitic stainless steel weld joint made by MIG welding. The model prediction of residual stress was validated by X-ray Diffraction (XRD) method. It is found that there is a good agreement between the model predictions and the experimental results. The strain-strengthening can significantly improve the distribution of residual welding stress. Specifically in weld zone and the heat-affected zone (HAZ), residual stress decreases with increasing strain-strengthening level.


2020 ◽  
Vol 281 ◽  
pp. 128328
Author(s):  
Shiwei Zhang ◽  
Yadong Wang ◽  
Minhao Zhu ◽  
Zhijie Zhang ◽  
Pulin Nie ◽  
...  

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