Article ID Journal Published Year Pages File Type
8048068 Journal of Manufacturing Processes 2018 10 Pages PDF
Abstract
Creep models are generally utilized for predicting the residual stress relief during post weld heat treatment (PWHT). However, a comprehensive model considering the temperature effect is still lacking. In the present work, a new temperature dependent Arrhenius equation-based model has been developed to predict the residual stress relief of PWHT of Ti-6Al-4V. The model was validated by the surface residual stress measurement of the Ti-6Al-4V plate before and after PWHT using X-ray Diffraction (XRD). The comparative study of modelling results and measurements indicates that the temperature dependent Arrhenius equation-based model developed in this work is accurate and effective for predicting the residual stress relief of PWHT of Ti-6Al-4V. Besides, the creep induced strain increment takes the dominant role in residual stress relief during the PWHT process of Ti-6Al-4V.
Related Topics
Physical Sciences and Engineering Engineering Industrial and Manufacturing Engineering
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