A Quantitative Phase-Field Simulation of Soft-Impingement in Austenite to Ferrite Transformation with Mixed-Mode

被引：7

作者：

Bhattacharya, Avisor ^{[1
,2
]}

Upadhyay, C. S. ^{[1
]}

Sangal, S. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Aerosp Engn, Kanpur 208016, Uttar Pradesh, India

[2] Indian Inst Technol, Dept Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2017年 / 48A卷 / 10期

关键词：

FE-C; DENDRITIC GROWTH; KINETICS; DECOMPOSITION; NUCLEATION; PREDICTION; ALLOY; DIFFUSION; STEEL;

D O I：

10.1007/s11661-017-4225-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work simulates the transformation of austenite to ferrite with mixed-mode in a simplified austenitic grain geometry. The quantitative phase-field model, developed on the basis of non-local equilibrium at the interface, simulates the transformation. The present work reveals that the soft-impingement takes place much earlier than has been so far considered. The accumulation of carbon in and around the meeting point of the diffusion layers is not continuous, and a detailed mechanism of soft-impingement is presented here. The growth of ferrite under mixed-mode of transformation is analyzed and found to be consistent with the theory.

引用

页码：4929 / 4942

页数：14