The Effect of Heat Treatment on the Structure and Mechanical Properties of Nanocrystalline Cu–14Al–3Ni Alloy Subjected to High-Pressure Torsion

The effect of heat treatment on the microstructure, phase composition, mechanical properties, and microhardness of the shape-memory Сu–14 wt % Al–3 wt % Ni alloy prepared in the nanocrystalline state, which results from the severe plastic high-pressure torsion (HPT), is studied. Electron microscopy...

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Bibliographic Details
Published in:Physics of metals and metallography 2021-09, Vol.122 (9), p.883-890
Main Authors: Svirid, A. E., Pushin, V. G., Kuranova, N. N., Makarov, V. V., Uksusnikov, A. N.
Format: Article
Language:English
Subjects:
Alloys
Aluminum
Analysis
Chemistry and Materials Science
Diffusion
Heat treating
Heat treatment
Magnetic fields
Martensitic transformations
Materials Science
Mechanical properties
Metallic Materials
Microhardness
Nanocrystals
Nickel
Officials and employees
Phase composition
Phase Transformations
Pressure effects
Shape memory alloys
Specialty metals industry
Structure
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Summary:The effect of heat treatment on the microstructure, phase composition, mechanical properties, and microhardness of the shape-memory Сu–14 wt % Al–3 wt % Ni alloy prepared in the nanocrystalline state, which results from the severe plastic high-pressure torsion (HPT), is studied. Electron microscopy and X-ray diffraction analysis are used in combination with electrical resistivity measurements in order to obtain data on the peculiarities of thermoelastic martensitic transformations and decomposition in the HPT-processed alloy subjected to thermal actions.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X21090131