Composition tuning and texture control in medium-high entropy alloys for a reduction of Young's modulus comparable to cortical bone

Research Project

Project/Area Number	25K17857
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 26050:Material processing and microstructure control-related
Research Institution	Yokohama National University
Principal Investigator	THIRATHIPVIWAT PRAMOTE 横浜国立大学, 大学院工学研究院, 助教 (80965822)
Project Period (FY)	2025-04-01 – 2027-03-31
Project Status	Granted (Fiscal Year 2025)
Budget Amount *help	¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000) Fiscal Year 2026: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000) Fiscal Year 2025: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords	High entropy alloys / Biomaterials / Microstructure control / Alloy design
Outline of Research at the Start	The new compositions of NbTiZr-based M/HEAs are tailored to have a single BCC phase, high strength and low Young's modulus for orthopedic implant application. Furthermore, a control of preferred <001> orientation is fabricated by high temperature deformation for further reduction of Young's modulus.