Superelasticity and shape memory effect after warm abc-pressing of TiNi-based alloy

Abstract

The aim of work is to study the effect of microstructure transformation from coarse-grained to submicrocrystalline structure in samples during warm isothermal (723K) abc-pressing on inelastic properties of Ti_49.8Ni_50.2(at.%) alloys. Experimental dependences of superelasticity (SE), shape memory effect (SME), the total recovered inelastic strain (SE+SME) and plastic strain versus the total shear pre-strain under torsion was obtained. It is shown that the total inelastic strain are 18% in the initial specimens, 15.8% in specimens after abc-pressing with the true strain 0.62 and monotonically increases up to 18.3% while true strain increases up to 8.44.

Original language	English
Pages (from-to)	4814-4818
Number of pages	5
Journal	Materials Today: Proceedings
Volume	4
Issue number	3
DOIs	https://doi.org/10.1016/j.matpr.2017.04.076
Publication status	Published - 2017

Keywords

abc-pressing
Shape memory effect
Superelasticity
TiNi

ASJC Scopus subject areas

Materials Science(all)

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10.1016/j.matpr.2017.04.076

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title = "Superelasticity and shape memory effect after warm abc-pressing of TiNi-based alloy",

abstract = "The aim of work is to study the effect of microstructure transformation from coarse-grained to submicrocrystalline structure in samples during warm isothermal (723K) abc-pressing on inelastic properties of Ti49.8Ni50.2(at.%) alloys. Experimental dependences of superelasticity (SE), shape memory effect (SME), the total recovered inelastic strain (SE+SME) and plastic strain versus the total shear pre-strain under torsion was obtained. It is shown that the total inelastic strain are 18% in the initial specimens, 15.8% in specimens after abc-pressing with the true strain 0.62 and monotonically increases up to 18.3% while true strain increases up to 8.44.",

keywords = "abc-pressing, Shape memory effect, Superelasticity, TiNi",

author = "Aleksander Lotkov and Victor Grishkov and Dorzhima Zhapova and Victor Timkin and Anatoly Baturin and Oleg Kashin",

year = "2017",

doi = "10.1016/j.matpr.2017.04.076",

language = "English",

volume = "4",

pages = "4814--4818",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

publisher = "Elsevier Limited",

number = "3",

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TY - JOUR

T1 - Superelasticity and shape memory effect after warm abc-pressing of TiNi-based alloy

AU - Lotkov, Aleksander

AU - Grishkov, Victor

AU - Zhapova, Dorzhima

AU - Timkin, Victor

AU - Baturin, Anatoly

AU - Kashin, Oleg

PY - 2017

Y1 - 2017

N2 - The aim of work is to study the effect of microstructure transformation from coarse-grained to submicrocrystalline structure in samples during warm isothermal (723K) abc-pressing on inelastic properties of Ti49.8Ni50.2(at.%) alloys. Experimental dependences of superelasticity (SE), shape memory effect (SME), the total recovered inelastic strain (SE+SME) and plastic strain versus the total shear pre-strain under torsion was obtained. It is shown that the total inelastic strain are 18% in the initial specimens, 15.8% in specimens after abc-pressing with the true strain 0.62 and monotonically increases up to 18.3% while true strain increases up to 8.44.

AB - The aim of work is to study the effect of microstructure transformation from coarse-grained to submicrocrystalline structure in samples during warm isothermal (723K) abc-pressing on inelastic properties of Ti49.8Ni50.2(at.%) alloys. Experimental dependences of superelasticity (SE), shape memory effect (SME), the total recovered inelastic strain (SE+SME) and plastic strain versus the total shear pre-strain under torsion was obtained. It is shown that the total inelastic strain are 18% in the initial specimens, 15.8% in specimens after abc-pressing with the true strain 0.62 and monotonically increases up to 18.3% while true strain increases up to 8.44.

KW - abc-pressing

KW - Shape memory effect

KW - Superelasticity

KW - TiNi

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U2 - 10.1016/j.matpr.2017.04.076

DO - 10.1016/j.matpr.2017.04.076

M3 - Article

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VL - 4

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JO - Materials Today: Proceedings

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