A new treatment of alloying effects on migrating interfaces in Fe-X alloys

被引：8
|
作者：
Zhang, Cong-Yu [1 ]
Chen, Hao [1 ]
Zhu, Jia-Ning [1 ]
Liu, Wen-Bo [2 ]
Liu, Geng [1 ]
Zhang, Chi [1 ]
Yang, Zhi-Gang [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Mat, Beijing 100084, Peoples R China
[2] Xi An Jiao Tong Univ, Dept Nucl Sci & Technol, Xian 710049, Shaanxi, Peoples R China
来源：
SCRIPTA MATERIALIA | 2019年 / 162卷
基金：
中国国家自然科学基金; 国家重点研发计划; 北京市自然科学基金;
关键词：
Steels; Solute drag; Phase transformations; Diffusion; GRAIN-BOUNDARY SEGREGATION; SOLUTE DRAG; FERRITE TRANSFORMATION; AUSTENITE; NB; RECRYSTALLIZATION; MOTION;
D O I：
10.1016/j.scriptamat.2018.10.034
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The steady-state assumption in the classical solute drag (SD) models is not always valid in treating the complex interaction between alloying elements and migrating interfaces (grain/phase boundaries) in steels. In this study, a general treatment based on phase-field theory is proposed to capture the SD effects of alloying elements without the steady state assumption, while it reduces to the SD models under steady-state assumption. This new treatment can predict the interaction between migrating interfaces and alloying elements with strong segregation tendencies, which cannot be captured by the classical SD models. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：44 / 48
页数：5
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