Effect of Zinc Doping on the Temperature of Thermoelastic Martensitic Transformations and the Microstructure of Metastable (α+β) Cu-Zn-Based Shape Memory Alloys
IF 2 4区 材料科学Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
N. N. Kuranova, V. V. Marchenkov, V. G. Pushin, A. E. Svirid, B. M. Fominykh
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引用次数: 0
Abstract
A comprehensive study is performed to investigate the effect of zinc concentration on structural and phase transformations in metastable (α + β) Cu-Zn-based shape memory alloys. The start and finish temperatures of forward and reverse martensitic transformations in Cu-xZn alloys (x=38, 39.5, and 41 wt %) are determined using electrical resistance measurements. Structure and phase transformations are studied by optical, scanning and transmission electron microscopy as well as by X-ray phase analysis. It is found that critical temperatures of thermoelastic martensitic transformations decrease with an increase in the zinc concentration. Diffuse effects in the selected area electron diffraction patterns are analyzed depending on the zinc concentration in metastable Cu-Zn binary alloys. An increase is observed in the dislocation density under thermal cycling due to the martensitic transition.
期刊介绍：
The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.
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