Journal
ISIJ INTERNATIONAL
Volume 52, Issue 9, Pages 1678-1682Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
DOI: 10.2355/isijinternational.52.1678
Keywords
computer simulation; phase-field modeling; domain growth; boundary migration
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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.
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