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Physics of Metals and Metallography
Published in: Physics of Metals and Metallography 7/2020

01-07-2020 | STRENGTH AND PLASTICITY

Evolution of the Microstructure and Mechanical Properties of Copper during the Rolling–ECAP Process

Authors: S. N. Lezhnev, I. E. Volokitina, E. A. Panin, A. V. Volokitin

Published in: Physics of Metals and Metallography | Issue 7/2020

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Abstract—

The effect of the new combined rolling–pressing technique of plastic deformation on the structure and mechanical properties of copper has been investigated in this work. The deformation was performed at room temperature and there were three cycles. Rolling–pressing technique was shown to significantly refine the structure of the commercial-purity copper. The strength of the copper workpieces increased by two times after three passes. The ultimate tensile strength and the yield strength increased from 235 to 482 MPa and from 198 to 405 MPa, respectively. The relative elongation and the relative reduction decreased by 8% and 7%, respectively. The ultrafine-grained structure with an average grain size of 2 μm was revealed to be stable to subsequent annealing up to 150°C.
previous article Effect of the Temperature of Shock-Wave Loading on Structure and Phase Transformations in Nitrogen-Containing Austenitic Cr–Mn–Ni Steel
next article Influence of the Sliding Velocity on the Wear Intensity of the Sintered Hybrid Composite (Al–12Si)–40Sn upon Dry Friction

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Metadata
Title
Evolution of the Microstructure and Mechanical Properties of Copper during the Rolling–ECAP Process
Authors
S. N. Lezhnev
I. E. Volokitina
E. A. Panin
A. V. Volokitin
Publication date
01-07-2020
Publisher
Pleiades Publishing
Published in
Physics of Metals and Metallography / Issue 7/2020
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X20070054

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