Post-weld heat treatment distortion of longitudinal welds of steel containment vessel for nuclear power plant

doi:10.13251/j.issn.0254-6051.2021.01.040

Abstract

Abstract: Based on the SYSWELD software,a finite element model was established for the cylinder ring of steel containment vessel.The heat treatment process of longitudinal weld of the cylinder was simulated by finite element method.The distortion and residual stress after heat treatment were calculated.The distortion data of numerical simulation analysis were compared with the measured data.It is proved that the proposed process meets the technical requirements of the product and can provide reference for local post-welding heat treatment of super large vessels.

Key words: SYSWELD, steel containment vessel, post weld heat treatment (PWHT), distortion

CLC Number:

TG162.79

Hu Guangze, Wang Gang, Yu Jie, Yan Guizhen. Post-weld heat treatment distortion of longitudinal welds of steel containment vessel for nuclear power plant[J]. Heat Treatment of Metals, 2021, 46(1): 220-224.

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