INFLUENCE OF THE GRAIN SIZE, DEFORMATION TEMPERATURE AND Cu – Al ALLOYS COMPOSITION ON THE PARAMETER OF INTERDISPLACEMENT INTERACTION IN THE TAYLOR RATIO
Abstract
The hardening of metallic materials was studied on the basis of the well-known Taylor relation: the relationship between dislocation density and flow stress. The method of transmission electron diffraction microscopy was used to study the structure of samples at various test temperatures in tensile-deformed polycrystalline FCC of solid solutions Cu – Al in the range of aluminum concentrations from 0.5 to 14.0 % (atom.) with an average grain size of 10 – 240 µm. In the Taylor relation, the parameter α characterizes the inter-dislocation interaction. The magnitude of this parameter is mainly calculated theoretically. Based on experimental data, the values of α were calculated for the whole sample and for various types of substructures. The quantitative values of the parameters are given. The analysis of the parameters depending on the concentration of aluminum, the test temperature for fixed values of grain size. The influence of the type of substructure on the parameter value in a particular substructure is investigated.
About the Authors
N.V. Cherkasov
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
L.I. Trishkina
Tomsk State University of Architecture and Building
T.V. Cherkasova
Tomsk State University of Architecture and Building
N.A. Konevа
Tomsk State University of Architecture and Building
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Review
For citations:
Cherkasov N., Trishkina L., Cherkasova T., Konevа N. INFLUENCE OF THE GRAIN SIZE, DEFORMATION TEMPERATURE AND Cu – Al ALLOYS COMPOSITION ON THE PARAMETER OF INTERDISPLACEMENT INTERACTION IN THE TAYLOR RATIO. Bulletin of the Siberian State Industrial University. 2020;(1):21-26. (In Russ.)
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