TY - GEN
T1 - Adiabatic shear banding in an Al-Mg-Si alloy processed by equal channel angular pressing
AU - Vaseghi, Majid
AU - Taheri, Ali Karimi
AU - Yoo, Ji Hoon
AU - Joo, Soo Hyun
AU - Kim, Hyoung Seop
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - Equal channel angular pressing is an outstanding method for imposing large plastic deformation to metallic materials without any decreasing in cross section area of as processed samples. In this paper, the effect of working temperature, ram speed and the number of passes on the formation of adiabatic shear bands in Al6061 during equal channel angular pressing was investigated. Billets of the alloy were processed up to four passes via route BC from room temperature to 200°C with two ram speeds using a die that imparts an effective strain of ∼1.1 per pass. The results have demonstrated that the onset of the adiabatic shear banding in this alloy strongly depends on the ram speed: more frequently observed at the higher ram speed than the lower speed. Although the geometry of the macroscopic view of shear band is similar in all cases, the development of bands depends on the number of passes as well as processing temperature.
AB - Equal channel angular pressing is an outstanding method for imposing large plastic deformation to metallic materials without any decreasing in cross section area of as processed samples. In this paper, the effect of working temperature, ram speed and the number of passes on the formation of adiabatic shear bands in Al6061 during equal channel angular pressing was investigated. Billets of the alloy were processed up to four passes via route BC from room temperature to 200°C with two ram speeds using a die that imparts an effective strain of ∼1.1 per pass. The results have demonstrated that the onset of the adiabatic shear banding in this alloy strongly depends on the ram speed: more frequently observed at the higher ram speed than the lower speed. Although the geometry of the macroscopic view of shear band is similar in all cases, the development of bands depends on the number of passes as well as processing temperature.
KW - Adiabatic shear banding
KW - Al-Mg-Si alloy
KW - Equal channel angular extrusion
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U2 - 10.4028/www.scientific.net/MSF.654-656.1014
DO - 10.4028/www.scientific.net/MSF.654-656.1014
M3 - Conference contribution
AN - SCOPUS:77955483869
SN - 0878492550
SN - 9780878492558
T3 - Materials Science Forum
SP - 1014
EP - 1017
BT - PRICM7
PB - Trans Tech Publications Ltd
T2 - 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
Y2 - 2 August 2010 through 6 August 2010
ER -