An Arrhenius equation-based model to predict the residual stress relief of post weld heat treatment of Ti-6Al-4V plate. (April 2018)

• Record Type: Journal Article
• Authors: Yan, Guangxu; Crivoi, Alexandru; Sun, Yajuan; Maharjan, Niroj; Song, Xu; Li, Feng; Tan, Ming Jen
• Is Part Of: Journal of manufacturing processes. Volume 32(2018)
• Page Start: 763
• Page End: 772
• Publication Date: 2018-04
• Subjects: Finite element modelling -- Arrhenius equation-based model -- Post weld heat treatment -- Residual stress -- Ti-6Al-4V; Production management -- Data processing -- Periodicals; Manufacturing processes -- Periodicals; Procestechnologie; Productietechniek; Production -- Gestion -- Informatique -- Périodiques; Fabrication -- Périodiques; Manufacturing processes; Production management -- Data processing; Periodicals; 670.5
• DOI: 10.1016/j.jmapro.2018.04.004
• Languages: English
• ISSNs: 1526-6125

Abstract

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.