Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials

Iijima, Yuuka; Nagase, Takeshi; Matsugaki, Aira; Wang, Pan; Ameyama, Kei; Nakano, Takayoshi

doi:https://doi.org/10.1016/j.matdes.2021.109548

Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials

Iijima, Yuuka; Nagase, Takeshi; Matsugaki, Aira et al.

Materials and Design, 2021, 202, 109548

Number of Access:559（2025-07-27 21:10 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89788

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Title	Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials
Creator	CreatorName Iijima, Yuuka
	NRID 1000050362661 1000050362661 CreatorName Nagase, Takeshi
	NRID 1000010592529 1000010592529 ORCID 0000-0002-8427-7124 0000-0002-8427-7124 researchmap permalink aira aira Scopus Author ID 24172720900 24172720900 CreatorName Matsugaki, Aira
	CreatorName Wang, Pan
	NRID 1000010184243 1000010184243 CreatorName Ameyama, Kei
	NRID 1000030243182 1000030243182 ORCID 0000-0001-8052-1698 0000-0001-8052-1698 researchmap permalink read0013987 read0013987 Scopus Author ID 7403896013 7403896013 CreatorName Nakano, Takayoshi
Subject	Alloy design
	Biocompatibility
	Biomaterials
	High-entropy alloys
	Solidification
	Thermodynamic calculation
Description	Iijima Y., Nagase T., Matsugaki A., et al. Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials. Materials and Design, 202, 109548. https://doi.org/10.1016/j.matdes.2021.109548.
Abstract	Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed and newly developed. It is found that the Moeq and valence electron concentration (VEC) parameters are useful for alloy design involving BCC structure formation in bio medium-entropy alloys and BioHEAs. Finally, we find a Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 (at.%) BioHEA that exhibits biocompatibility comparable to that of CP–Ti, higher mechanical strength than CP–Ti, and an appreciable room-temperature tensile ductility. The current findings pave the way for new Ti–Zr–Hf–Nb–Ta–Mo BioHEAs development and are applicable for another BioHEA alloys system.
Publisher	Elsevier
Source Title	Materials and Design
Volume (Issue)	202
Page	109548
Date of Issued	2021-04-01
Language	English
Handle URL	https://hdl.handle.net/11094/89788
PISSN	02641275
eISSN	18734197
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1016/j.matdes.2021.109548
Access Rights	open access
CopyRight	This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Materials and Design. 2021, 202, p. 109548
DC.title	Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials
DC.creator	Iijima, Yuuka
	Nagase, Takeshi
	Matsugaki, Aira
	Wang, Pan
	Ameyama, Kei
	Nakano, Takayoshi
DC.publisher	Elsevier
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2021-04-01
DC.identifier	https://doi.org/10.1016/j.matdes.2021.109548
DC.subject	Alloy design
	Biocompatibility
	Biomaterials
	High-entropy alloys
	Solidification
	Thermodynamic calculation
DC.description	Iijima Y., Nagase T., Matsugaki A., et al. Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials. Materials and Design, 202, 109548. https://doi.org/10.1016/j.matdes.2021.109548.
DCTERMS.abstract	Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed and newly developed. It is found that the Moeq and valence electron concentration (VEC) parameters are useful for alloy design involving BCC structure formation in bio medium-entropy alloys and BioHEAs. Finally, we find a Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 (at.%) BioHEA that exhibits biocompatibility comparable to that of CP–Ti, higher mechanical strength than CP–Ti, and an appreciable room-temperature tensile ductility. The current findings pave the way for new Ti–Zr–Hf–Nb–Ta–Mo BioHEAs development and are applicable for another BioHEA alloys system.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	89788
citation_title	Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials
citation_author	Iijima, Yuuka
	Nagase, Takeshi
	Matsugaki, Aira
	Wang, Pan
	Ameyama, Kei
	Nakano, Takayoshi
citation_publisher	Elsevier
citation_language	English
citation_date	2021-04-01
citation_journal_title	Materials and Design
citation_volume	202
citation_firstpage	109548
citation_doi	https://doi.org/10.1016/j.matdes.2021.109548
citation_public_url	https://hdl.handle.net/11094/89788

Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials

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