Effect of stress-assisted ageing in austenite and martensite on two-way shape memory effect in [001]-oriented Co35Ni35Al30 single crystals

Eftifeeva, A. S.; Yanushonite, E. I.; Panchenko, E. Yu.; Chumlyakov, Y.

doi:10.1063/1.5083314

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2021

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“…Thus, high-temperature NiTiHf alloys with M s /T m > 0.2, which are expected to demonstrate strong martensite stabilization, are a priority in SIM-aging research. The potential effectiveness of SIM-aging has been demonstrated in CoNiAl, NiFeGa, and CoNiGa single crystals [5,7,8], however a thorough investigation into the effect of SIM-aging on the properties of NiTiHf alloys has yet to be conducted.…”

Section: Introductionmentioning

confidence: 99%

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy

Tagiltsev

Panchenko

Timofeeva

et al. 2021

Smart Mater. Struct.

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The present study investigates the high-temperature shape memory effect (SME) in heterophase Ni50.3Ti32.2Hf17.5 polycrystals with nanosized H-phase particles after stress-induced martensite (SIM) aging in tension and compression. SIM aging created the conditions for fully reversible two-way SME with a strain of up to 50% of the one-way shape memory strain. SIM aging altered the viscoelastic properties of material, in particular, the elastic moduli of austenite and martensite increased, as did internal friction. Increased interface mobility is suggested as the reason for internal friction growth.

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Section: Introductionmentioning

confidence: 99%

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy

Tagiltsev

Panchenko

Timofeeva

et al. 2021

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

Effect of stress-assisted ageing in austenite and martensite on two-way shape memory effect in [001]-oriented Co35Ni35Al30 single crystals

Cited by 1 publication

References 8 publications

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy

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Effect of stress-assisted ageing in austenite and martensite on two-way shape memory effect in [001]-oriented Co35Ni35Al30 single crystals

Cited by 1 publication

References 8 publications

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni50.3Ti32.2Hf17.5 high-temperature shape memory alloy

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni50.3Ti32.2Hf17.5 high-temperature shape memory alloy

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Product

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The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni_50.3Ti_32.2Hf_17.5 high-temperature shape memory alloy