Microstructure, Strain Recovery Characteristics and Corrosion Resistance of Ti–V– Al– Zr Lightweight Shape Memory Alloy

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2025-02-10 DOI:10.1007/s11041-025-01094-w

J. Zhao, Q. Zhang, Z. Dong, X. Zhang

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Abstract

The effect of Zr content on the microstructure, martensitic transformation temperatures, mechanical properties, strain recovery characteristics, and corrosion resistance of the alloys of the Ti – 11V – 9.7Al – xZr system were investigated. It was revealed that with the addition of Zr, the structure of the alloy is gradually transforms from the α″-phase to the β-phase. The addition of Zr decreases the martensitic transformation temperatures of the Ti – 11V – 9.7Al – xZr alloy and significantly improves its yield strength and ductility. The full recovery of 6% strain is achieved in the Ti – 11V – 9.7Al – 5Zr alloy, which shows a high shape memory effect and superelasticity. When the content of Zr reaches 10 at.%, there is no shape memory effect reply. Electrochemical testing revealed that the Ti – 11V – 9.7Al – 5Zr alloy exhibits the best corrosion resistance, and a small amount of Zr addition enhances the corrosion resistance of the alloy.

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.