耦合热力学相变路径预测<strong>Fe-C</strong>包晶合金宏观偏析

耦合热力学相变路径预测Fe-C包晶合金宏观偏析

冯苗苗, 张红伟, 邵景霞, 李铁, 雷洪, 王强

Prediction of Macrosegregation of Fe-C Peritectic Alloy Ingot Through Coupling with Thermodynamic Phase Transformation Path

FENG Miaomiao, ZHANG Hongwei, SHAO Jingxia, LI Tie, LEI Hong, WANG Qiang

图11 采用LR-TEC模型预测的Fe-0.1%C合金铸锭冷却过程中不同时刻截面上各相分布(计算结束时间570.2 s)
(a) t = 110 s, f_l
(b) calculation end, f_CEM (f_CEM—phase mass fraction of cementite)
(c) t = 110 s, f_γ (f_γ—phase mass fraction of fcc structure austenite (γ))
(d) calculation end, f_γ
(e) t = 110 s, f_δ (f_δ—phase mass fraction of bcc structure ferrite (δ))
(f) calculation end, f_α,δ (f_α,δ—phase mass fraction of bcc structure ferrite (α and δ))
(g) t = 110 s, y = 0.03 m
(h) calculation finish, y = 0.03 m

Fig.11 Phase distributions in 2D ingot section during cooling process of Fe-0.1%C alloy predicted by LR-TEC model (Calculation finishing at 570.2 s)