Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase

Okugawa, Masayuki; Watanabe, Madoka; Ichikawa, Satoshi; Sato, Kazuhisa; Liu, Yuheng; Yasuda, Hiroyuki Y.; Koizumi, Yuichiro

doi:https://doi.org/10.1016/j.scriptamat.2025.116812

Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase

Okugawa, Masayuki; Watanabe, Madoka; Ichikawa, Satoshi et al.

Scripta Materialia, 2025, 267, 116812

アクセス数:27件（2025-09-07 11:44 集計）

固定URL: https://hdl.handle.net/11094/102614

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タイトル	Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase
著者	NRID 1000070847160 1000070847160 ORCID 0000-0002-6844-6856 0000-0002-6844-6856 researchmap permalink masayuki.okugawa masayuki.okugawa Scopus Author ID 57202824128 57202824128 著者名 Okugawa, Masayuki
	著者名 Watanabe, Madoka
	NRID 1000080403137 1000080403137 ORCID 0000-0003-3597-1045 0000-0003-3597-1045 researchmap permalink satoshiichikawa satoshiichikawa Scopus Author ID 36055779800 36055779800 著者名 Ichikawa, Satoshi
	NRID 1000070314424 1000070314424 ORCID 0000-0001-9078-2541 0000-0001-9078-2541 researchmap permalink read0158304 read0158304 Scopus Author ID 55552977400 55552977400 著者名 Sato, Kazuhisa
	NRID 1000000966088 1000000966088 ORCID 0000-0003-1790-1844 0000-0003-1790-1844 researchmap permalink liu-TU liu-TU Scopus Author ID 56195082800 56195082800 著者名 Liu, Yuheng
	NRID 1000060294021 1000060294021 ORCID 0000-0002-7077-0655 0000-0002-7077-0655 researchmap permalink read0051691 read0051691 Scopus Author ID 47861549600 47861549600 著者名 Yasuda, Hiroyuki Y.
	NRID 1000010322174 1000010322174 ORCID 0000-0001-7061-7135 0000-0001-7061-7135 researchmap permalink YuichiroKoizumi YuichiroKoizumi Scopus Author ID 57202772340 57202772340 著者名 Koizumi, Yuichiro
キーワード等	Antiphase boundary
	Fe₃Al intermetallics
	In-situ TEM observation
	Ordering mobility
内容	Okugawa M., Watanabe M., Ichikawa S., et al. Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase. Scripta Materialia 267, 116812 (2025); https://doi.org/10.1016/j.scriptamat.2025.116812.
抄録	Properties of intermetallic compounds depend on the degree of order and the size of ordered domain (i.e., antiphase domain). Phase-field simulations can predict domain growth. However, precise prediction requires understanding of the ordering mobility. Herein, we examine the impact of excess vacancies on the ordered-domain growth in D0₃-Fe₃Al intermetallics using in-situ transmission electron microscopy (TEM). It was found that ordering mobility is correlated with excess vacancies introduced via rapid quenching from the disordered state. The similarity between the dependence of ordering mobility at 773 K on the quenching temperature and the dependence of equilibrium vacancy concentration on the temperature suggests that the diffusion for migration of domain boundary is dominated by the quenched-in excess vacancies. These findings advance fundamental understanding and enable control over the ordering in intermetallic fabrication through rapid solidification processes, such as powder bed fusion-type additive manufacturing.
出版者	Acta Materialia Inc
収録物名	Scripta Materialia
巻(号)	267
ページ	116812
刊行年月	2025-06-09
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102614
PISSN	13596462
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.scriptamat.2025.116812
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Scripta Materialia. 2025, 267, p. 116812
DC.title	Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase
DC.creator	Okugawa, Masayuki
	Watanabe, Madoka
	Ichikawa, Satoshi
	Sato, Kazuhisa
	Liu, Yuheng
	Yasuda, Hiroyuki Y.
	Koizumi, Yuichiro
DC.publisher	Acta Materialia Inc
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-06-09
DC.identifier	https://doi.org/10.1016/j.scriptamat.2025.116812
DC.subject	Antiphase boundary
	Fe₃Al intermetallics
	In-situ TEM observation
	Ordering mobility
DC.description	Okugawa M., Watanabe M., Ichikawa S., et al. Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase. Scripta Materialia 267, 116812 (2025); https://doi.org/10.1016/j.scriptamat.2025.116812.
DCTERMS.abstract	Properties of intermetallic compounds depend on the degree of order and the size of ordered domain (i.e., antiphase domain). Phase-field simulations can predict domain growth. However, precise prediction requires understanding of the ordering mobility. Herein, we examine the impact of excess vacancies on the ordered-domain growth in D0₃-Fe₃Al intermetallics using in-situ transmission electron microscopy (TEM). It was found that ordering mobility is correlated with excess vacancies introduced via rapid quenching from the disordered state. The similarity between the dependence of ordering mobility at 773 K on the quenching temperature and the dependence of equilibrium vacancy concentration on the temperature suggests that the diffusion for migration of domain boundary is dominated by the quenched-in excess vacancies. These findings advance fundamental understanding and enable control over the ordering in intermetallic fabrication through rapid solidification processes, such as powder bed fusion-type additive manufacturing.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	102614
citation_title	Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase
citation_author	Okugawa, Masayuki
	Watanabe, Madoka
	Ichikawa, Satoshi
	Sato, Kazuhisa
	Liu, Yuheng
	Yasuda, Hiroyuki Y.
	Koizumi, Yuichiro
citation_publisher	Acta Materialia Inc
citation_language	英語
citation_date	2025-06-09
citation_journal_title	Scripta Materialia
citation_volume	267
citation_firstpage	116812
citation_doi	https://doi.org/10.1016/j.scriptamat.2025.116812
citation_public_url	https://hdl.handle.net/11094/102614

Impacts of excess vacancies on order-domain growth in D0₃ Fe₃Al intermetallic phase

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