Effect of electric pulse treatment on structure of cold-rolled aluminum alloy 1570C

E.V. Avtokratova1, R.R. Ilyasov1,2, I.S. Valeev1,2, O.S. Sitdikov1,2, M.V. Markushev1
1Institute for Metals Superplasticity Problems RAS, Khalturin St. 39, 450001 Ufa
2Bashkortostan State University, Z. Validi St. 32, 450074 Ufa

Abstract

The effects of short electric pulses with duration of ~ 100 μs and the current density of ~ 104 A/mm2 on the structure and microhardness of cold-rolled aluminum alloy 1570С were investigated. It is found, that such a treatment activates static recrystallization, resulting in the alloy microhardness decrease and formation of partially recrystallized fine-grained structure with ~3-4 μm grains.

Received: 20 December 2011   Accepted: 09 January 2012

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