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Article
The Influence of Aging on Shape Memory Effect in Ti-50.7at.%Ni and Ti-51.7at.%Ni Single Crystals
The shape memory effect (SME) during stress-assisted thermal cycles under compressive load in [001]-oriented Ti-50.7at.%Ni and Ti-51.7at.%Ni single crystals aged at 823 K for 1 h has been studied. Ti3Ni4 particle...
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Article
Cyclic Stability of Superelasticity in [001]-Oriented Quenched Ni44Fe19Ga27Co10 and Ni39Fe19Ga27Co15 Single Crystals
The study of the influence of the cobalt content on the cyclic stability of superelasticity (SE) was carried out in quenched Ni44Fe19Ga27Co10 and Ni39Fe19Ga27Co15 (at.%) single crystals under compression. It is s...
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Article
Elastocaloric Effect in Heterophase TiNi Single Crystals
The paper presents studies of the elastocaloric effect during the stress-induced B2–(R)–B19′ martensitic transformation depending on the microstructure and test temperature in Ni50.6Ti49.4 and Ni50.8Ti49.2 (at.%)...
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Article
The Elastocaloric Effect in [001]-Single Crystals of Titanium Nickelide Containing Nanosized Ti3Ni4 Particles
The temperature dependence of the elastocaloric effect is studied and the experimental values of the adiabatic temperature change, ΔTad, in the loading/unloading cycles of up to 13.3 K and 16.4 K in quenched and ...
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Article
Special Features of Functional Properties of Heterophase High-Strength Ni50.2Ti37.3Hf12.5 Polycrystals and Single Crystals
Stress-induced B2–B19' martensitic transformations (MTs) in Ni50.2Ti37.3Hf12.5 (at.%) alloy aged at 773 K, 3 h are studied. Single crystals have lower (by 100 K) transformation temperatures (TTs) in comparison wi...
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Article
Special Features of Thermal and Stress Hysteresis of B2–R–B19' Martensitic Transformations in Aged [001]-Oriented Ti–50.6 at.% Ni Single Crystals
Stress-induced and thermal-induced martensitic transformations (MTs) in compression were investigated in [001]-oriented Ti–50.6 at.% Ni single crystals aged at 573 K for 1.5 h, containing Ti3Ni4 particles. No ...
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Article
The Effect of Low-Temperature Heat Treatment on the Superelasticity in Ti–50.6 at % Ni Single Crystals
As a result of low-temperature aging at 573 K for 1.5 h of Ti–50.6 at% Ni [001]-oriented single crystals quenched from 1253 K, a high-strength state is obtained due to the precipitation of Ti3Ni4 nanoscale partic...
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Article
Two-Way Shape Memory Effect Induced by High-Temperature Isothermal Training in [001]-Oriented Heterophase Single Crystals of Ni49Fe18Ga27Co6 Alloy
Results of investigations of the two-way shape memory effect (TWSME) and its stability during stress-free thermal cycling of [001]-oriented Ni49Fe18Ga27Co6 single crystals after high-temperature isothermal traini...
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Article
Effect of ultrasonic impact treatment on the mechanical properties of titanium nickelide single crystal
Optical and transmission electron microscopy, X-ray diffraction analysis, nanoindentation, measurements of wear, and mechanical uniaxial tensile tests have been used to study the effect of ultrasonic impact su...
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Article
Orientation Dependence of Functional Properties in Heterophase Single Crystals of the Ti36.5Ni51.0Hf12.5 and Ti48.5Ni51.5 Alloys
The features of orientation dependence of stress-induced thermoelastic B2–(R)–B19′-martensitic transformations in single crystals of the Ti48.5Ni51.5 and Ni51.0Ti36.5Hf12.5 (at.%) alloys, which contain disperse p...
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Article
Superelasticity in high-strength heterophase single crystals of Ni51.0Ti36.5Hf12.5 alloy
The effect of precipitated disperse H-phase particles on the thermoelastic B2–B19′ martensitic transformation (MT) under compressive load has been studied on [001]-, [236]-, and [223]-oriented single crystals ...
