MATEC Web Conf.
Volume 129, 2017International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2017)
|Number of page(s)||5|
|Section||Advanced Materials and Coatings|
|Published online||07 November 2017|
Effect of the stacking fault energy on the mechanical properties of pure Cu and Cu-Al alloys subjected to severe plastic deformation
Ufa State Aviation Technical University, Ufa, Russian Federation
2 School of Materials Science and Engineering, Changzhou University, Changzhou, 213164, PR China
3 Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou, 213164, PR China
4 Joint Laboratory of Functional Nanostructured Metals, Changzhou University, Changzhou, 213164, P.R. China
The effect of stacking fault energy (SFE) on the mechanical properties of pure Cu and alloys of Cu-2.2%Al and Cu-4.5%Al subjected to severe plastic deformation (SPD) was investigated. SPD was performed by equal channel angular pressing (ECAP) at room and cryogenic temperatures. It is established that the increase in the weight concentration of Al in the Cu matrix (a reduction of SFE) and decreasing the ECAP temperature leads to an increase of the strength characteristics. The observed tendency is caused by increasing of the role of deformation twinning.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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