Giant rubber-like behavior induced by martensite aging in Ni51Fe18Ga27Co4 single crystals. (15th March 2019)

• Record Type: Journal Article
• Authors: Panchenko, E.; Timofeeva, E.; Eftifeeva, A.; Osipovich, K.; Surikov, N.; Chumlyakov, Y.; Gerstein, G.; Maier, H.J.
• Is Part Of: Scripta materialia. Number 162(2019)
• Page Start: 387
• Page End: 390
• Publication Date: 2019-03-15
• Subjects: Single crystal -- Stress-induced martensite aging -- Rubber-like behavior -- Two-way shape memory effect; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.12.003
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Stress-induced martensite aging along the [110]B2 ||[100]L10 -direction in compression was employed to enhance the functional properties of Ni51 Fe18 Ga27 Co4 single crystals. Stress-induced martensite aging induces two effects. Firstly, a two-way shape memory effect with a reversible compressive strain of −4.3% along the [110]В2 direction and a reversible tensile strain of +9.0% along the normal [001]B2 -direction. Secondly, rubber-like behavior with giant reversible compression strain up to −15.0% along the [100]B2 -direction caused by L10 -martensite variant reorientation was observed. This exceeds the maximum compressive transformation strain (−6.3%) during the B2-L10 martensitic transformation by a factor of two. Graphical abstract: Unlabelled Image