Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase

Hagihara, Koji; Okamoto, Takuya; Ueyama, Ryohei; Yamasaki, Michiaki; Kawamura, Yoshihito; Nakano, Takayoshi

doi:https://doi.org/10.2320/matertrans.MT-MM2019001

Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase

Hagihara, Koji; Okamoto, Takuya; Ueyama, Ryohei et al.

Materials Transactions, 2020, 61(5), 821-827

アクセス数:125件（2025-04-03 21:43 集計）

固定URL: https://hdl.handle.net/11094/89893

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タイトル	Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase
著者	NRID 1000010346182 1000010346182 researchmap permalink read0191194 read0191194 Scopus Author ID 7007016278 7007016278 著者名 Hagihara, Koji
	著者名 Okamoto, Takuya
	著者名 Ueyama, Ryohei
	NRID 1000050343885 1000050343885 著者名 Yamasaki, Michiaki
	NRID 1000030250814 1000030250814 著者名 Kawamura, Yoshihito
	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
キーワード等	Deformation band
	Dislocation
	Long-period stacking ordered phase
	Magnesium alloy
	Plastic deformation
内容	Hagihara K., Okamoto T., Ueyama R., et al. Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase. Materials Transactions 61, 1821 (2020); https://doi.org/10.2320/matertrans.MT-MM2019001.
抄録	The variation in the deformation behavior of a directionally solidified (DS) Mg-based long-period stacking ordered (LPSO)-phase crystal depending on the loading orientation was examined. The frequency of formation of the beak-like shape of the deformation band, which is known as one of the important deformation mechanisms in the LPSO phase, monotonically decreased as the inclination angle of the loading orientation with respect to the crystal growth direction in the DS crystal increased, and was accompanied by a decrease in the yield stress due to the activation of basal slip. Deformation bands formed along a direction approximately perpendicular to the grain boundary independent of the loading orientation. The crystal rotation axes selected in the deformation bands were perpendicular to [0001] in almost all grains, independent of the loading orientation. However, the rotation axes in the bands were not fixed but varied between h1010 - i and h1120 - i; this variation was correlated with the loading axis. These observed features strongly suggest that the deformation bands formed in the LPSO phase are predominantly deformation kink bands and that the formation mechanism itself does not vary with the loading orientation but instead its details. The selectivity of the crystal rotation axis in the kink band is strongly affected by the loading orientation.
出版者	The Japan Institute of Metals and Materials
収録物名	Materials Transactions
巻(号)	61(5)
ページ	821-827
刊行年月	2020-03-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/89893
PISSN	13459678
eISSN	13475320
NCID	AA1151294X
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.2320/matertrans.MT-MM2019001
アクセス権	open access
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	Materials Transactions. 2020, 61(5), p. 821-827
DC.title	Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase
DC.creator	Hagihara, Koji
	Okamoto, Takuya
	Ueyama, Ryohei
	Yamasaki, Michiaki
	Kawamura, Yoshihito
	Nakano, Takayoshi
DC.publisher	The Japan Institute of Metals and Materials
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-03-01
DC.identifier	https://doi.org/10.2320/matertrans.MT-MM2019001
DC.subject	Deformation band
	Dislocation
	Long-period stacking ordered phase
	Magnesium alloy
	Plastic deformation
DC.description	Hagihara K., Okamoto T., Ueyama R., et al. Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase. Materials Transactions 61, 1821 (2020); https://doi.org/10.2320/matertrans.MT-MM2019001.
DCTERMS.abstract	The variation in the deformation behavior of a directionally solidified (DS) Mg-based long-period stacking ordered (LPSO)-phase crystal depending on the loading orientation was examined. The frequency of formation of the beak-like shape of the deformation band, which is known as one of the important deformation mechanisms in the LPSO phase, monotonically decreased as the inclination angle of the loading orientation with respect to the crystal growth direction in the DS crystal increased, and was accompanied by a decrease in the yield stress due to the activation of basal slip. Deformation bands formed along a direction approximately perpendicular to the grain boundary independent of the loading orientation. The crystal rotation axes selected in the deformation bands were perpendicular to [0001] in almost all grains, independent of the loading orientation. However, the rotation axes in the bands were not fixed but varied between h1010 - i and h1120 - i; this variation was correlated with the loading axis. These observed features strongly suggest that the deformation bands formed in the LPSO phase are predominantly deformation kink bands and that the formation mechanism itself does not vary with the loading orientation but instead its details. The selectivity of the crystal rotation axis in the kink band is strongly affected by the loading orientation.
DC.format	89893
citation_title	Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase
citation_author	Hagihara, Koji
	Okamoto, Takuya
	Ueyama, Ryohei
	Yamasaki, Michiaki
	Kawamura, Yoshihito
	Nakano, Takayoshi
citation_publisher	The Japan Institute of Metals and Materials
citation_language	英語
citation_date	2020-03-01
citation_journal_title	Materials Transactions
citation_volume	61
citation_issue	5
citation_firstpage	821
citation_lastpage	827
citation_doi	https://doi.org/10.2320/matertrans.MT-MM2019001
citation_public_url	https://hdl.handle.net/11094/89893

Loading orientation dependence of the formation behavior of deformation kink bands in the Mg-based long-period stacking ordered (LPSO) phase

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