A Study of Structure of Metastable Cu–Zn Alloys with Shape Memory Effect

Methods of transmission and scanning electron microscopy are used to study premartenstic states and their relation to martensitic transformations in the alloys Cu–38 wt % Zn and Cu–39.5 wt % Zn with shape memory effect. Analysis of the observed diffusion scattering of electrons is carried out, inclu...

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Bibliographic Details
Published in:Physics of metals and metallography 2024-07, Vol.125 (7), p.721-729
Main Authors: Svirid, A. E., Kuranova, N. N., Pushin, V. G., Afanas’ev, S. V.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Crystal defects
Crystallography
Diffusion
Martensite
Martensitic transformations
Materials Science
Metallic Materials
Phase Transformations
Shape effects
Shape memory alloys
Structure
Substructures (crystalline)
Zinc base alloys
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Summary:Methods of transmission and scanning electron microscopy are used to study premartenstic states and their relation to martensitic transformations in the alloys Cu–38 wt % Zn and Cu–39.5 wt % Zn with shape memory effect. Analysis of the observed diffusion scattering of electrons is carried out, including in situ experiments at heating and cooling and the defect condition of the internal substructure of austenite and martensite. The crystallographic models of martensitic transitions β 2 → , β 2 → , and β 2 → are proposed based on the crystallographic data obtained in the premartensitic state.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X24600568