The influence of austenite grain size during welding simulations of ferritic steels

Abstract

In recent years, considerable progress has been made in the simulation of ferritic steel welding processes. The successful residual stress validation of a single-pass autogenous TIG beam weld in SA508 Gr.3 Cl.1 steel has identified key simulation variables required for the accurate prediction of post-weld residual stress in ferritic weldments. The present work outlines a sensitivity study performed to examine the influence of austenite grain growth on predicted solid-state phase transformation kinetics and consequently, residual stress predictions. © (2014) Trans Tech Publications, Switzerland.