Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations

Okugawa, Masayuki; Saito, Kenji; Yoshima, Haruki; Sawaizumi, Katsuhiko; Nomoto, Sukeharu; Watanabe, Makoto; Nakano, Takayoshi; Koizumi, Yuichiro

doi:https://doi.org/10.1016/j.addma.2024.104079

Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations

Okugawa, Masayuki; Saito, Kenji; Yoshima, Haruki et al.

Additive Manufacturing, 2024, 84, 104079

アクセス数:38件（2025-04-03 22:12 集計）

固定URL: https://hdl.handle.net/11094/95650

閲覧可能ファイル

ファイル	フォーマット	利用条件	サイズ	閲覧回数	利用開始日	説明	information
AdditManuf_84_104079	pdf	なし	15.7 MB	73	2024.05.17

Creative Commons : 表示

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

タイトル	Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
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 Saito, Kenji
	著者名 Yoshima, Haruki
	著者名 Sawaizumi, Katsuhiko
	著者名 Nomoto, Sukeharu
	著者名 Watanabe, Makoto
	NRID 1000030243182 1000030243182 ORCID 0000-0001-8052-1698 0000-0001-8052-1698 researchmap permalink read0013987 read0013987 Scopus Author ID 7403896013 7403896013 著者名 Nakano, Takayoshi
	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	Computational thermal-fluid dynamics simulation
	Hastelloy-X nickel-based superalloy
	Laser powder-bed fusion
	Phase-field method
	Solute element segregation
内容	Okugawa M., Saito K., Yoshima H., et al. Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations. Additive Manufacturing 84, 104079 (2024); https://doi.org/10.1016/j.addma.2024.104079.
抄録	Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manufacturing (AM) of Ni-based superalloys. To the best of our knowledge, this is the first study to demonstrate a computational thermal-fluid dynamics (CtFD) simulation coupled multi-phase-field (MPF) simulation with a multicomponent-composition model of Ni-based superalloy to predict solute segregation under solidification conditions in LPBF. The MPF simulation of the Hastelloy-X superalloy reproduced the experimentally observed submicron-sized cell structure. Significant solute segregations were formed within interdendritic regions during solidification at high cooling rates of up to 1.6 × 106 K s−1, a characteristic feature of LPBF. Solute segregation caused a decrease in the solidus temperature (TS), with a reduction of up to 38.4 K, which increases the risk of liquation cracks during LPBF. In addition, the segregation triggers the formation of carbide phases, which increases the susceptibility to ductility dip cracking. Conversely, we found that the decrease in TS is suppressed at the melt-pool boundary regions, where re-remelting occurs during the stacking of the layer above. Controlling the re-remelting behavior is deemed to be crucial for designing crack-free alloys. Thus, we demonstrated that solute segregation at the various interfacial regions of Ni-based multicomponent alloys can be predicted by the conventional MPF simulation. The design of crack-free Ni-based superalloys can be expedited by MPF simulations of a broad range of element combinations and their concentrations in multicomponent Ni-based superalloys.
出版者	Elsevier B.V.
収録物名	Additive Manufacturing
巻(号)	84
ページ	104079
刊行年月	2024-03-25
言語	英語
ハンドルURL	https://hdl.handle.net/11094/95650
eISSN	22148604
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.addma.2024.104079
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 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	Additive Manufacturing. 2024, 84, p. 104079
DC.title	Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
DC.creator	Okugawa, Masayuki
	Saito, Kenji
	Yoshima, Haruki
	Sawaizumi, Katsuhiko
	Nomoto, Sukeharu
	Watanabe, Makoto
	Nakano, Takayoshi
	Koizumi, Yuichiro
DC.publisher	Elsevier B.V.
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-03-25
DC.identifier	https://doi.org/10.1016/j.addma.2024.104079
DC.subject	Computational thermal-fluid dynamics simulation
	Hastelloy-X nickel-based superalloy
	Laser powder-bed fusion
	Phase-field method
	Solute element segregation
DC.description	Okugawa M., Saito K., Yoshima H., et al. Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations. Additive Manufacturing 84, 104079 (2024); https://doi.org/10.1016/j.addma.2024.104079.
DCTERMS.abstract	Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manufacturing (AM) of Ni-based superalloys. To the best of our knowledge, this is the first study to demonstrate a computational thermal-fluid dynamics (CtFD) simulation coupled multi-phase-field (MPF) simulation with a multicomponent-composition model of Ni-based superalloy to predict solute segregation under solidification conditions in LPBF. The MPF simulation of the Hastelloy-X superalloy reproduced the experimentally observed submicron-sized cell structure. Significant solute segregations were formed within interdendritic regions during solidification at high cooling rates of up to 1.6 × 106 K s−1, a characteristic feature of LPBF. Solute segregation caused a decrease in the solidus temperature (TS), with a reduction of up to 38.4 K, which increases the risk of liquation cracks during LPBF. In addition, the segregation triggers the formation of carbide phases, which increases the susceptibility to ductility dip cracking. Conversely, we found that the decrease in TS is suppressed at the melt-pool boundary regions, where re-remelting occurs during the stacking of the layer above. Controlling the re-remelting behavior is deemed to be crucial for designing crack-free alloys. Thus, we demonstrated that solute segregation at the various interfacial regions of Ni-based multicomponent alloys can be predicted by the conventional MPF simulation. The design of crack-free Ni-based superalloys can be expedited by MPF simulations of a broad range of element combinations and their concentrations in multicomponent Ni-based superalloys.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	95650
citation_title	Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations
citation_author	Okugawa, Masayuki
	Saito, Kenji
	Yoshima, Haruki
	Sawaizumi, Katsuhiko
	Nomoto, Sukeharu
	Watanabe, Makoto
	Nakano, Takayoshi
	Koizumi, Yuichiro
citation_publisher	Elsevier B.V.
citation_language	英語
citation_date	2024-03-25
citation_journal_title	Additive Manufacturing
citation_volume	84
citation_firstpage	104079
citation_doi	https://doi.org/10.1016/j.addma.2024.104079
citation_public_url	https://hdl.handle.net/11094/95650

Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations

閲覧可能ファイル

論文情報

論文詳細を表示