Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering

Li, Qiang; Yuan, Xufeng; Li, Junjie; Wang, Pan; Nakai, Masaaki; Niinomi, Mitsuo; Nakano, Takayoshi; Chiba, Akihiko; Liu, Xuyan; Pan, Deng

doi:https://doi.org/10.2320/matertrans.ME201913

Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering

Li, Qiang; Yuan, Xufeng; Li, Junjie et al.

Materials Transactions, 2019, 60(9), 1763-1768

Number of Access:686（2025-08-21 04:35 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89899

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Title	Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering
Creator	CreatorName Li, Qiang
	CreatorName Yuan, Xufeng
	CreatorName Li, Junjie
	CreatorName Wang, Pan
	NRID 1000020431603 1000020431603 CreatorName Nakai, Masaaki
	NRID 1000050126942 1000050126942 CreatorName Niinomi, Mitsuo
	NRID 1000030243182 1000030243182 ORCID 0000-0001-8052-1698 0000-0001-8052-1698 researchmap permalink read0013987 read0013987 Scopus Author ID 7403896013 7403896013 CreatorName Nakano, Takayoshi
	NRID 1000000197617 1000000197617 CreatorName Chiba, Akihiko
	CreatorName Liu, Xuyan
	CreatorName Pan, Deng
Subject	Compression
	Fe
	Spark plasma sintering
	Ti alloy
Description	Li Q., Yuan X., Li J., et al. Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering. Materials Transactions 60, 1763 (2019); https://doi.org/10.2320/matertrans.ME201913.
Abstract	Biomedical Ti-15Nb-25Zr-(0, 2, 4, 8)Fe (mol%) alloys are prepared by mixing pure element powders and spark plasma sintering (SPS). Specimens with diameters of 20 mm and thicknesses of 3 mm are obtained by sintering at 1000°C for 10 min followed by cooling in the furnace. Some of the specimens are then heat-treated at 900°C for 1 h followed by water quenching. Zr and Fe are dissolved in Ti; however, segregation of Nb is observed in all of the alloys. The β and α′′ phases are observed in the as-sintered and heat-treated specimens owing to the insufficient diffusion of the alloying elements. Fe stabilizes the β phase and provides a solution-strengthening effect. With the increase in the Fe content in the as-sintered specimen, the compressive strength and micro-Vickers hardness are improved in the Ti-15-Nb-25Zr-(0, 2, 4)Fe alloys and slightly decreased in Ti-15-Nb-25Zr-8Fe. The as-sintered Ti-15Nb-25Zr-4Fe alloy exhibits the maximum compressive strength of 1740 MPa. Although the plasticity is decreased by the Fe addition, a fracture strain of approximately 17% is obtained for Ti-15Nb-25Zr-4Fe, indicating a good plasticity. The heat treatment cannot eliminate the segregation of Nb, but can improve the plasticity and slightly increase the strengths of Ti-15Nb-25-Zr(0, 2, 4)Fe. Moreover, the heat-treated Ti-15Nb-25Zr-8Fe exhibits a high strength of approximately 1780 MPa and fracture strain of approximately 19%. Therefore, good comprehensive mechanical properties, including high strengths, high hardnesses, and good plasticities, can be obtained in Fe-added β-Ti alloys prepared by SPS and subsequent optional short heat treatment.
Publisher	The Japan Institute of Metals and Materials
Source Title	Materials Transactions
Volume (Issue)	60(9)
Page	1763-1768
Date of Issued	2019-07-01
Language	English
Handle URL	https://hdl.handle.net/11094/89899
PISSN	13459678
eISSN	13475320
NCID	AA1151294X
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.2320/matertrans.ME201913
Access Rights	open access
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 Transactions. 2019, 60(9), p. 1763-1768
DC.title	Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering
DC.creator	Li, Qiang
	Yuan, Xufeng
	Li, Junjie
	Wang, Pan
	Nakai, Masaaki
	Niinomi, Mitsuo
	Nakano, Takayoshi
	Chiba, Akihiko
	Liu, Xuyan
	Pan, Deng
DC.publisher	The Japan Institute of Metals and Materials
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2019-07-01
DC.identifier	https://doi.org/10.2320/matertrans.ME201913
DC.subject	Compression
	Fe
	Spark plasma sintering
	Ti alloy
DC.description	Li Q., Yuan X., Li J., et al. Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering. Materials Transactions 60, 1763 (2019); https://doi.org/10.2320/matertrans.ME201913.
DCTERMS.abstract	Biomedical Ti-15Nb-25Zr-(0, 2, 4, 8)Fe (mol%) alloys are prepared by mixing pure element powders and spark plasma sintering (SPS). Specimens with diameters of 20 mm and thicknesses of 3 mm are obtained by sintering at 1000°C for 10 min followed by cooling in the furnace. Some of the specimens are then heat-treated at 900°C for 1 h followed by water quenching. Zr and Fe are dissolved in Ti; however, segregation of Nb is observed in all of the alloys. The β and α′′ phases are observed in the as-sintered and heat-treated specimens owing to the insufficient diffusion of the alloying elements. Fe stabilizes the β phase and provides a solution-strengthening effect. With the increase in the Fe content in the as-sintered specimen, the compressive strength and micro-Vickers hardness are improved in the Ti-15-Nb-25Zr-(0, 2, 4)Fe alloys and slightly decreased in Ti-15-Nb-25Zr-8Fe. The as-sintered Ti-15Nb-25Zr-4Fe alloy exhibits the maximum compressive strength of 1740 MPa. Although the plasticity is decreased by the Fe addition, a fracture strain of approximately 17% is obtained for Ti-15Nb-25Zr-4Fe, indicating a good plasticity. The heat treatment cannot eliminate the segregation of Nb, but can improve the plasticity and slightly increase the strengths of Ti-15Nb-25-Zr(0, 2, 4)Fe. Moreover, the heat-treated Ti-15Nb-25Zr-8Fe exhibits a high strength of approximately 1780 MPa and fracture strain of approximately 19%. Therefore, good comprehensive mechanical properties, including high strengths, high hardnesses, and good plasticities, can be obtained in Fe-added β-Ti alloys prepared by SPS and subsequent optional short heat treatment.
DC.format	89899
citation_title	Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering
citation_author	Li, Qiang
	Yuan, Xufeng
	Li, Junjie
	Wang, Pan
	Nakai, Masaaki
	Niinomi, Mitsuo
	Nakano, Takayoshi
	Chiba, Akihiko
	Liu, Xuyan
	Pan, Deng
citation_publisher	The Japan Institute of Metals and Materials
citation_language	English
citation_date	2019-07-01
citation_journal_title	Materials Transactions
citation_volume	60
citation_issue	9
citation_firstpage	1763
citation_lastpage	1768
citation_doi	https://doi.org/10.2320/matertrans.ME201913
citation_public_url	https://hdl.handle.net/11094/89899

Effects of Fe on microstructures and mechanical properties of Ti-15Nb-25Zr-(0, 2, 4, 8)Fe alloys prepared by spark plasma sintering

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