Author Identifier (ORCID)
Lai Chang Zhang: https://orcid.org/0000-0003-0661-2051
Abstract
This work systematically analyzes the effects of heat treatment on the mechanical properties and corrosion behavior of Ti-50Zr alloy produced via vacuum arc melting. Microstructural characterization demonstrates that the microstructure of Ti–50Zr transforms from coarse lamellar α phase in as-cast condition to fine and uniformly distributes acicular α′ phase in heat-treatment state. The tensile strength, yield strength, and microhardness are significantly improved. This strengthening effect can be attributed to grain refinement and increase in dislocation density induced by heat treatment. Furthermore, the heat-treated Ti–50Zr exhibits lower corrosion current density and higher passive film resistance, suggesting a notable improvement in corrosion resistance. The primary mechanism of enhanced corrosion resistance is that heat treatment facilitates the formation of a thick and uniform passive film, enhanced the homogeneous distribution of Ti and Zr elements, which enhanced the structural integrity and compactness of the passive film. This work provides a useful reference for the development of high-strength and corrosion-resistant titanium alloys.
Document Type
Journal Article
Date of Publication
1-1-2025
Publication Title
Advanced Engineering Materials
Publisher
Wiley
School
Centre for Advanced Materials and Manufacturing / School of Engineering
Funders
National Natural Science Foundation of China (52404382) / Edith Cowan University (23965)
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Li, Y., Zhang, Q., Zhao, R., Wang, H., Liu, Y., Zhao, Z., Yang, C., & Zhang, L. C. (2025). Improved strength and corrosion resistance of Ti–50Zr alloy through heat treatment. Advanced Engineering Materials. Advance online publication. https://doi.org/10.1002/adem.202501828