Paper Title:
Strength of Commercial Aluminum Alloys after Equal Channel Angular Pressing and Post-ECAP Processing
  Abstract

The effects of equal channel angular pressing (ECAP), further heat treatment and rolling on the structure and room temperature mechanical properties of the commercial aluminum alloys 6061 (Al-0.9Mg-0.7Si) and 1560 (Al-6.5Mg-0.6Mn) were investigated. It has been shown that the strength of the alloys after ECAP is higher than that achieved after conventional processing. Prior ECAP solution treatment and post-ECAP ageing can additionally increase the strength of the 6061 alloy. Under optimal ageing conditions a yield strength (YS) of 434 MPa and am ultimate tensile strength (UTS) of 470 MPa were obtained for the alloy. Additional cold rolling leads to a YS and UTS of 475 and 500 MPa with 8% elongation. It was found that the post-ECAP isothermal rolling of the 1560 alloy resulted in the formation of a nano-fibred structure and a tensile strength (YS = 540 MPa and UTS = 635 MPa) that has never previously been observed in commercial non-heat treatable alloys.

  Info
Periodical
Solid State Phenomena (Volume 114)
Edited by
Witold Lojkowski and John R. Blizzard
Pages
91-96
DOI
10.4028/www.scientific.net/SSP.114.91
Citation
M. Y. Murashkin, M.V. Markushev, J. Ivanisenko, R. Valiev, "Strength of Commercial Aluminum Alloys after Equal Channel Angular Pressing and Post-ECAP Processing", Solid State Phenomena, Vol. 114, pp. 91-96, 2006
Online since
July 2006
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Price
$32.00
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