Evaluation of ordering mobility from antiphase boundary mobility in Fe 3Al using phase-field simulation

Yuichiro Koizumi; Samuel Miller Allen; Masayuki Ouchi; Yoritoshi Minamino

doi:10.2355/isijinternational.52.1678

Evaluation of ordering mobility from antiphase boundary mobility in Fe ₃Al using phase-field simulation

Yuichiro Koizumi, Samuel Miller Allen, Masayuki Ouchi, Yoritoshi Minamino

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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 D0 ₃-APB was sensitive to the ordering mobility. This allowed us to determine the ordering mobility for D0 ₃-LRO at 673 K to be 3 × 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 solutedrag which was quite significant at B2-APB.

Original language	English
Pages (from-to)	1678-1682
Number of pages	5
Journal	Isij International
Volume	52
Issue number	9
DOIs	https://doi.org/10.2355/isijinternational.52.1678
Publication status	Published - 2012

Keywords

Boundary migration
Computer simulation
Domain growth
Phase-field modeling

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.2355/isijinternational.52.1678

Cite this

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title = "Evaluation of ordering mobility from antiphase boundary mobility in Fe 3Al using phase-field simulation",

abstract = "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 D0 3-APB was sensitive to the ordering mobility. This allowed us to determine the ordering mobility for D0 3-LRO at 673 K to be 3 × 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 solutedrag which was quite significant at B2-APB.",

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T1 - Evaluation of ordering mobility from antiphase boundary mobility in Fe 3Al using phase-field simulation

AU - Koizumi, Yuichiro

AU - Allen, Samuel Miller

AU - Ouchi, Masayuki

AU - Minamino, Yoritoshi

PY - 2012

Y1 - 2012

N2 - 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 D0 3-APB was sensitive to the ordering mobility. This allowed us to determine the ordering mobility for D0 3-LRO at 673 K to be 3 × 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 solutedrag which was quite significant at B2-APB.

AB - 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 D0 3-APB was sensitive to the ordering mobility. This allowed us to determine the ordering mobility for D0 3-LRO at 673 K to be 3 × 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 solutedrag which was quite significant at B2-APB.

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