Development of non-equiatomic Ti-Nb-Ta-Zr-Mo high-entropy alloys for metallic biomaterials. (November 2019)

• Record Type: Journal Article
• Authors: Hori, Takao; Nagase, Takeshi; Todai, Mitsuharu; Matsugaki, Aira; Nakano, Takayoshi
• Is Part Of: Scripta materialia. Number 172(2019)
• Page Start: 83
• Page End: 87
• Publication Date: 2019-11
• Subjects: High-entropy alloys -- Biomaterials -- Thermodynamic calculation -- Solidification -- Biocompatibility; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2019.07.011
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Nobel non-equiatomic Ti-Nb-Ta-Zr-Mo high-entropy alloys (HEAs) for metallic biomaterials (bio-HEAs) were designed and developed. The pseudo-binary phase diagrams focusing on solidification were constructed by thermodynamic calculations. The shifting the alloy composition of the equiatomic TiNbTaZrMo bio-HEA can realize the drastic improvement of the deformability. Notably, the non-equiatomic Ti, Zr-rich composition stimulated the molecular interaction between biological cells and bio-HEA, indicating the possibility of the proposed non-equiatomic Ti-Nb-Ta-Zr-Mo HEAs as an advanced biomaterial for bone tissue engineering applications. This is the first achievement for the alloy design including the control of alloy composition for the development of new bio-HEAs. Graphical abstract: Unlabelled Image