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- Title
Analytical Model to Compare and Select Creep Constitutive Equation for Stress Relief Investigation during Heat Treatment in Ferritic Welded Structure.
- Authors
Hu, Mengjia; Li, Kejian; Li, Shanlin; Cai, Zhipeng; Pan, Jiluan
- Abstract
The one-dimensional analytical model was promoted to help select the creep constitutive equation and predict heat treatment temperature in a ferritic welded structure, along with neglecting the impact of structural constraint and deformation compatibility. The analytical solutions were compared with simulation results, which were validated with experimental measurements in a ferritic welded rotor. The as-welded and post weld heat treatment (PWHT) residual stresses on the inner and outer cylindrical surfaces were measured with the hole-drilling method (HDM) for validation. Based on the one-dimensional analytical model, different effects of Norton and Norton-Bailey creep constitutive equation on stress relief during heat treatment in a ferritic welded rotor were investigated.
- Subjects
HEAT treatment; CREEP (Materials); RESIDUAL stresses; ANALYTICAL solutions; HEAT equation; EQUATIONS; WELDED joints
- Publication
Metals (2075-4701), 2020, Vol 10, Issue 5, p688
- ISSN
2075-4701
- Publication type
Article
- DOI
10.3390/met10050688