A comparative study on intrinsic mobility of incoherent and semicoherent interfaces during the austenite to ferrite transformation

被引：27

作者：

Dong, Haokai ^{[1
,2
]}

Zhang, Yongjie ^{[3
]}

Miyamoto, Goro ^{[3
]}

Chen, Hao ^{[1
]}

Yang, Zhigang ^{[1
]}

Furuhara, Tadashi ^{[3
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Mat, Beijing 100084, Peoples R China

[2] Tohoku Univ, Dept Met, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

SCRIPTA MATERIALIA | 2020年 / 188卷

基金：

中国国家自然科学基金;

关键词：

Interface migration; Ferrite transformation; Interface character; Intrinsic mobility; Energy dissipation; GROWTH-KINETICS; SOLUTE DRAG; FE; NUCLEATION; PLATES; MODEL;

D O I：

10.1016/j.scriptamat.2020.07.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A straightforward approach to experimentally determine intrinsic interface mobility as well as extrinsic energy dissipation is proposed based on the measurements of total energy dissipation and interface velocity. These parameters have been comparatively studied for incoherent allotriomorphic ferrite (AF) and semicoherent Widmanstatten ferrite (WF) in an Fe-C alloy. It reveals that extrinsic energy dissipation for AF is negligibly small whereas that for WF is about 20J/mol, which should correspond to the dissipation by associated transformation strain. Furthermore, the intrinsic mobility of the semicoherent WF/austenite interface is found to be much smaller than the incoherent AF/austenite interface counterpart. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：59 / 63

页数：5

共 31 条

[1] ATOMIC MECHANISMS OF DIFFUSIONAL NUCLEATION AND GROWTH AND COMPARISONS WITH THEIR COUNTERPARTS IN SHEAR TRANSFORMATIONS [J].

AARONSON, HI .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (02) :241-276

[2]

Aaronson HI., 1962, DECOMPOSITION AUSTEN

[3]

ALI A, 1990, MATER SCI TECH SER, V6, P781, DOI 10.1179/026708390790193736

[4] GROWTH KINETICS OF GRAIN-BOUNDARY FERRITE ALLOTRIOMORPHS IN FE-C ALLOYS [J].

BRADLEY, JR ;

RIGSBEE, JM ;

AARONSON, HI .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1977, 8 (02) :323-333

[5] A general mixed-mode model for the austenite-to-ferrite transformation kinetics in Fe-C-M alloys [J].

Chen, Hao ;

van der Zwaag, Sybrand .

ACTA MATERIALIA, 2014, 72 :1-12

[6]

Christian J., 1981, THEORY TRANSFORMATIO

[7]

Dube C., 1958, REV METTALURGICA, V55, P201

[8]

ENOMOTO M, 1989, SCRIPTA METALL MATER, V23, P1983, DOI 10.1016/0036-9748(89)90495-X

[9]

Furuhara T, 2018, MAT T

[10] Crystallography and Interphase Boundary of Martensite and Bainite in Steels [J].

Furuhara, Tadashi ;

Chiba, Tadachika ;

Kaneshita, Takeshi ;

Wu, Huidong ;

Miyamoto, Goro .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (06) :2739-2752

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