Finite Element Study on the Development of Damage and Flow Characteristics in Al7075 Alloy during Ex-ECAP

Mehdi Shaban Ghazani, Beitallah Eghbali

Department of Materials Engineering, Sahand University of Technology, Tabriz, Iran.

DOI: 10.4236/mnsms.2013.31004                

Abstract

In the present study, 3D-finite element method was conducted to investigate the deformation characteristics of Al7075 alloy during integrated extrusion-equal channel angular pressing. Effective strain, strain rate, mean stress, and damage distributions were evaluated. Severe cracking was observed at Al7075 sample after extrusion-equal channel angular pressing. Finite element results show that cracking is due to the positive mean stress and damage accumulation at the top surface of sample.

Keywords

Finite Element Method; Extrusion; Equal Channel Angular Pressing; Al7075

Conflicts of Interest

The authors declare no conflicts of interest.

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