Abstract

The effects of Al addition on the superelastic properties of Ti–Zr–Nb alloys were investigated. Ti–18Zr–(12–16)Nb–(0–4)Al (at.%) alloys were prepared by the Ar arc melting method and superelastic properties, transformation temperature, and transformation strain were investigated quantitatively. The superelastic strain increased by the addition of Al and a large recovery strain of 6.1% was observed in a Ti–18Zr–13.5Nb–3Al alloy. The large superelastic strain of Al-added alloys was found to be due to a large transformation strain and a strong recrystallization texture.

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