Evaluation of Ordering Mobility from Antiphase Boundary Mobility in Fe3Al Using Phase-field Simulation

被引：4

作者：

Koizumi, Yuichiro ^{[1
]}

Allen, Samuel Miller ^{[2
]}

Ouchi, Masayuki ^{[3
]}

Minamino, Yoritoshi ^{[3
]}

机构：

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

[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[3] Osaka Univ, Dept Adapt Machine Syst, Suita, Osaka 565, Japan

来源：

ISIJ INTERNATIONAL | 2012年 / 52卷 / 09期

关键词：

computer simulation; phase-field modeling; domain growth; boundary migration; FE3GA SINGLE-CRYSTALS; IRON-ALUMINUM ALLOYS; VACANCY SEGREGATION; DOMAIN BOUNDARIES; PRISM SLIP; PSEUDOELASTICITY; DEFORMATION; DEFECTS; MOTION; SOLUTE;

D O I：

10.2355/isijinternational.52.1678

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Determination of the mobilities for ordering transformation in Fe3Al has been attempted by comparing the rates of experimentally observed antiphase boundary (APB) migration with that simulated by a phase filed method (PFM). The simulated boundary mobility of DO3-APB was sensitive to the ordering mobility. This allowed us to determine the ordering mobility for DO3-LRO at 673 K to be 3 x 10(-11) m(3).J(-1).s(-1). However, the simulated boundary mobility of B2-APB was insensitive to the value of ordering mobility, and therefore the ordering mobility for B2-LRO could not be determined. The difference is ascribed to solute-drag which was quite significant at B2-APB.

引用

页码：1678 / 1682

页数：5

共 24 条

[1] MICROSCOPIC THEORY FOR ANTIPHASE BOUNDARY MOTION AND ITS APPLICATION TO ANTIPHASE DOMAIN COARSENING [J].

ALLEN, SM ;

CAHN, JW .

ACTA METALLURGICA, 1979, 27 (06) :1085-1095

[2] FREE ENERGY OF A NONUNIFORM SYSTEM .1. INTERFACIAL FREE ENERGY [J].

CAHN, JW ;

HILLIARD, JE .

JOURNAL OF CHEMICAL PHYSICS, 1958, 28 (02) :258-267

[3] Phase-field models for microstructure evolution [J].

Chen, LQ .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2002, 32 :113-140

[4] ANOMALOUS CONTRAST FROM AN ANTI-PHASE DOMAIN BOUNDARY IN BETA-BRASS [J].

CUPSCHAL.SG ;

BROWN, N .

PHILOSOPHICAL MAGAZINE, 1966, 14 (131) :1077-&

[5] INVESTIGATION OF DEFECTS AND ATOMIC ORDERING IN FE72AL28 BY POSITRON-ANNIHILATION AND MOSSBAUER-SPECTROSCOPY [J].

JIRASKOVA, Y ;

SCHNEEWEISS, O ;

SOB, M ;

NOVOTNY, I ;

PROCHAZKA, I ;

BECVAR, F ;

SEDLAK, B ;

SEBESTA, F ;

PUSKA, MJ .

JOURNAL DE PHYSIQUE IV, 1995, 5 (C1) :157-161

[6] Effects of antiphase domains on dislocation motion in Ti3Al single crystals deformed by prism slip [J].

Koizumi, Y. ;

Minamino, Y. ;

Nakano, T. ;

Umakoshi, Y. .

PHILOSOPHICAL MAGAZINE, 2008, 88 (04) :465-488

[7] Growth kinetics of antiphase domain in Ti3Al intermetallic compound [J].

Koizumi, Y ;

Katsumura, H ;

Minamino, Y ;

Tsuji, N ;

Lee, JG ;

Mori, H .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2004, 5 (1-2) :19-28

[8]

Koizumi Y, 2003, MATER RES SOC SYMP P, V753, P267

[9] Solute and vacancy segregation to a/4⟨111⟩ and a/2⟨100⟩ antiphase domain boundaries in Fe3Al [J].

Koizumi, Yuichiro ;

Allen, Samuel M. ;

Minamino, Yoritoshi .

ACTA MATERIALIA, 2008, 56 (19) :5861-5874

[10] Effects of solute and vacancy segregation on migration of a/4⟨1 1 1⟩ and a/2⟨1 0 0⟩ antiphase boundaries in Fe3Al [J].

Koizumi, Yuichiro ;

Allen, Samuel M. ;

Minamino, Yoritoshi .

ACTA MATERIALIA, 2009, 57 (10) :3039-3051

← 1 2 3 →