TY - GEN
T1 - Phase-field simulation of antiphase boundary migration in intermetallic compounds with solute and vacancy segregation
AU - Koizumi, Yuichiro
AU - Yokoi, Tatsuya
AU - Ouchi, Masayuki
AU - Minamino, Yoritoshi
AU - Masato, Yoshiya
AU - Allen, Samuel M.
N1 - Funding Information:
This study was supported by the ISIJ Research Promotion Grant from of Iron and Steel Institute of Japan and the Iketani Science and Technology Foundation.
PY - 2011
Y1 - 2011
N2 - The effects of solute and vacancy segregation on APB migration in Ti 3Al, and their dependence on composition, have been investigated by using a phase-field simulation in which vacancy distribution is taken into account. Al-atoms are depleted and vacancies segregate at APB in stoichiometric Ti3Al (Ti-25Al), whereas Al-atoms segregate and vacancies are depleted in Alrich one (Ti-28Al). The simulation indicates that APB in Ti 3Al migrates much faster in Ti-25Al than in Ti-28Al with the effect of vacancy segregation whereas it migrates slightly faster in Ti28Al than in Ti-25Al in the absence of the effect of vacancy segregation.
AB - The effects of solute and vacancy segregation on APB migration in Ti 3Al, and their dependence on composition, have been investigated by using a phase-field simulation in which vacancy distribution is taken into account. Al-atoms are depleted and vacancies segregate at APB in stoichiometric Ti3Al (Ti-25Al), whereas Al-atoms segregate and vacancies are depleted in Alrich one (Ti-28Al). The simulation indicates that APB in Ti 3Al migrates much faster in Ti-25Al than in Ti-28Al with the effect of vacancy segregation whereas it migrates slightly faster in Ti28Al than in Ti-25Al in the absence of the effect of vacancy segregation.
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U2 - 10.1557/opl.2011.389
DO - 10.1557/opl.2011.389
M3 - Conference contribution
AN - SCOPUS:80053195493
SN - 9781605112725
T3 - Materials Research Society Symposium Proceedings
SP - 437
EP - 442
BT - Intermetallic-Based Alloys for Structural and Functional Applications
T2 - 2010 MRS Fall Meeting
Y2 - 29 November 2010 through 3 December 2010
ER -