Microstructure of equiatomic and non-equiatomic Ti-Nb-Ta-Zr-Mo high-entropy alloys for metallic biomaterials

Nagase, Takeshi; Todai, Mitsuharu; Hori, Takao et al.

Journal of Alloys and Compounds, 2018, 753, 412-421

Number of Access:354（2025-08-21 04:36 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89830

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
JAlloysCompd_753_412 pdf None 6.35 MB 151 2022.12.26  
Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Microstructure of equiatomic and non-equiatomic Ti-Nb-Ta-Zr-Mo high-entropy alloys for metallic biomaterials
Creator
NRID
1000050362661 1000050362661
CreatorName
Nagase, Takeshi
NRID
1000010610800 1000010610800
CreatorName
Todai, Mitsuharu
CreatorName
Hori, Takao
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
Biomaterial
High-entropy alloy
Microstructure
Solidification
Thermodynamic calculation
Description
Nagase T., Todai M., Hori T., et al. Microstructure of equiatomic and non-equiatomic Ti-Nb-Ta-Zr-Mo high-entropy alloys for metallic biomaterials. Journal of Alloys and Compounds, 753, 412. https://doi.org/10.1016/j.jallcom.2018.04.082.
Abstract
The microstructures of equiatomic TiNbTaZrMo (Ti20Nb20Ta20Zr20Mo20—subscript numerals denote at.%) and non-equiatomic Ti2.6NbTaZrMo (Ti39.4Nb15.2Ta15.2Zr15.2Mo15.2) high-entropy alloys (HEAs) were investigated for use in metallic biomaterials, and discussed based on their thermodynamics. Equiaxial dendrite structures were observed in the as-cast specimens. Ta, Nb, and Mo were abundant in the main dendrite phase with a body centered cubic (bcc) structure, while Ti and Zr showed a tendency to be abundant in the inter-dendrite region with a bcc structure. The distribution of the constituent elements can be explained through the distribution coefficients during solidification estimated using thermodynamic calculations. The thermodynamic calculations focusing on the solidification process were effective not only for the evaluation of the solidification microstructure, but also for the design of Ti-Nb-Ta-Zr-Mo-based HEAs. The non-equiatomic Ti2.6NbTaZrMo HEA (Ti39.4Nb15.2Ta15.2Zr15.2Mo15.2) was designed based on thermodynamic calculations and the solidification microstructure was studied.
Publisher
Elsevier
Source Title
Journal of Alloys and Compounds
Volume (Issue)
753
Page
412-421
Date of Issued
2018-07-15
Language
English
Handle URL
https://hdl.handle.net/11094/89830
PISSN
09258388
NCID
AA10817249
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.jallcom.2018.04.082
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