The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni  50.3  Ti  32.2  Hf  17.5  high-temperature shape memory alloy

A I Tagiltsev; E Yu Panchenko; E E Timofeeva; Yu I Chumlyakov; I D Fatkullin; E S Marchenko; I Karaman

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Smart Materials and Structures

Article . 2021 . Peer-reviewed

License: https://publishingsupport.iopscience.iop.org/iop-standard/v1

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The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni 50.3 Ti 32.2 Hf 17.5 high-temperature shape memory alloy

descriptionPublicationkeyboard_double_arrow_right Article 25 Jan 2021Publisher:IOP PublishingJournal:Smart Materials and Structures, volume 30, page 25,039 (issn: 0964-1726, eissn: 1361-665X,

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Authors: A I Tagiltsev; E Yu Panchenko; E E Timofeeva; Yu I Chumlyakov; I D Fatkullin; E S Marchenko; I Karaman;

doi: 10.1088/1361-665x/abdaa8

The effect of stress-induced martensite aging in tension and compression on B2–B19′ martensitic transformation in Ni 50.3 Ti 32.2 Hf 17.5 high-temperature shape memory alloy

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Abstract

Abstract The present study investigates the high-temperature shape memory effect (SME) in heterophase Ni 50.3 Ti 32.2 Hf 17.5 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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The University of Texas System
United States
Tomsk State Pedagogical University
Russian Federation

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