Work

Effect of Fe content on microstructural evolution and mechanical properties of Ti-5Mo-xFe alloys

Year: 2024

Type: article

Abstract: Metastable beta titanium alloys (Ti-5Mo-xFe) were designed for biomedical applications with high strength and high cycle fatigue properties in this study. By varying Fe content (1, 2, and 4 wt%), we assessed changes in phase composition, grain refinement, and intermetallic compound formation to optimize the alloy for biomedical applications. The results revealed that increased Fe content enhances hardness and yield strength due to solid solution strengthening and grain refinement but slightly decreases corrosion resistance. Additionally, the microstructural evolution affected fatigue properties, with the basket-weave structure in Ti-5Mo-1Fe improving crack resistance, while the lamellar structures in higher Fe alloys exhibited lower fatigue resistance. These findings highlight the potential of Ti-5Mo-xFe alloys as cost-effective high-performance materials for implants, contributing to the tailored mechanical and electrochemical properties essential for biomedical applications.

Source: Journal of Materials Research and Technology

DOI: 10.1016/j.jmrt.2024.11.140

Authors: Hong-Min Kim, Yong-Jae Lee, Jae-Gwan Lee, Dong-Geun Lee

Institution: Sunchon National University

Language: English

Topic: Titanium Alloys Microstructure and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,430