Influence of Stress-induced Martensite Ageing on the Shape Memory Effects in As-grown and Quenched [011]-oriented Single Crystals of Ni49Fe18Ga27Co6 Alloy
Aida B. Tokhmetova, Natalia G. Larchenkova, Elena Yu. Panchenko, Ekaterina E. Timofeeva, Nikita Yu. Surikov, Yury I. Chumlyakov
Abstract. The influence of the stress-induced martensite aging on the two-way shape memory effect on Ni49Fe18Ga27Co6 (at.%) single crystals was studied. It has been shown, that the optimal regime of martensite aging for inducing the two-way shape memory effect is aging at T = 373 K, 1 h under a compressive stress 300 MPa applied along the [011]A-direction. After this ageing the two-way shape memory effect was obtained along [001]A-orientation in quenched B2-crystals with reversible strain 7.0 %, and in as-grown (L21 + γ)-crystals with strain 4.5 %.
Keywords
Single Crystals, Stress-Induced Martensite Aging, Shape Memory Effect
Published online 11/15/2018, 5 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Aida B. Tokhmetova, Natalia G. Larchenkova, Elena Yu. Panchenko, Ekaterina E. Timofeeva, Nikita Yu. Surikov, Yury I. Chumlyakov, ‘Influence of Stress-induced Martensite Ageing on the Shape Memory Effects in As-grown and Quenched [011]-oriented Single Crystals of Ni49Fe18Ga27Co6 Alloy’, Materials Research Proceedings, Vol. 9, pp 48-52, 2018
DOI: http://dx.doi.org/10.21741/9781644900017-10
The article was published as article 10 of the book Shape Memory Alloys
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