Numerical Simulation of Large-Sized Pure Aluminum Rod under Multi-Pass ECAP

Abstract:

In order to obtain the bulk ultra-fine grain materials with excellent performance under the conditions of severe plastic deformation, the law curves of squeeze pressure, stress and strain of the extrusion process on large-sized pure aluminum rods had been gotten by the finite element simulation of 6-pass ECAP. With the increasing of extrusion passes, the maximum extrusion load increases significantly and the distribution uniformity on the values of equivalent stress and strain improves. So the multi-pass equal channel angular pressing can achieve good effect of grain refinement and improves the distribution uniformity of grain-size.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2019-2023
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2019
• Online since: January 2013
• Authors: Xiao Lian Zhao, Ning Ning Zhao, Na Chen
• Keywords: ECAP, Large-Sized, Numerical Simulation, Severe Plastic Deformation (SPD), Ultrafine Grain

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