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
收藏
页码：4929 / 4942
页数：14
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