Structure and mechanical properties of aluminum alloy 6061 subjected to equal-channel angular pressing in parallel channels
- 18 October 2009
- journal article
- Published by Pleiades Publishing Ltd in Physics of Metals and Metallography
- Vol. 108 (4), 415-423
- https://doi.org/10.1134/s0031918x09100123
Abstract
It is shown that a uniform ultrafine-grained structure in alloy 6061 can be formed already after four cycles of treatment by equal-channel angular pressing in parallel channels (ECAP-PC). Along with grain refinement, in the process of an ECAP-PC treatment there occurs in the alloy a dynamic strain aging, which results in the formation of nanodimensional particles of a strengthening phase Mg2Si. It has been established that the alloy in the UFG state demonstrates a considerably higher level of strength and better plasticity in comparison with the material after a standard strengthening treatment.Keywords
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