Effect of Thermomechanical Treatment on Superelasticity in Ni₅₄Fe₁₉Ga₂₇ Single Crystals

Abstract:

In the present study the effects of thermomechanical treatment on the stress-induced martensitic transformation and superelasticity of [001]-oriented Ni₅₄Fe₁₉Ga₂₇ (at.%) single crystals were investigated. It is shown that high-temperature superelasticity is observed up to 453 K in the as-grown Ni₅₄Fe₁₉Ga₂₇ single crystals. Thermomechanical treatment result in increasing of the martensite yield stress, and so the SE interval, which is observed up to 523 K.

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 24-28
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.24
• Online since: September 2014
• Authors: Anton Tagiltsev*, Ekaterina Timofeeva, Elena Panchenko, Yuriy Chumlyakov
• Keywords: Single Crystal, Superelasticity, Thermoelastic Martensitic Transformation, Thermomechanical Treatment

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