Development of Microstructure Simulation System in SIP-Materials Integration Projects

Abstract

A simulation system for the phase transformations and microstructure changes in welded area of steels was built with Materials Integration (MI) concepts. We aimed to build an simulation environment suitable not only for conducting research on microstructure developments and performing high-quality simulations but also for integrating practical and academic viewpoints and insights from materials science and engineering. In particular, the methods discussed in this article, such as the coordination of CCT diagrams and phase field (PF) simulations, and combination between PF methods and cellular automaton method, are typical examples of the MI concept. The detail of framework on the simulation system is explained, comprehensively.

 

This Paper was Originally Published in Japanese in Materia Japan 58 (2019) 494–497.

Simulation of ferrite precipitation (a) and subsequent pearlite transformation (b). Pearlite transformation (reddish part in (b)) occurred in the γ-phase region where the carbon concentration enriched by α-phase precipitation (dark part in (a)).