Authors: Mehdi Shaban Ghazani Akbar Vajd
Publish Date: 2016/06/30
Volume: 70, Issue: 5, Pages: 1323-1328
Abstract
The hardening or softening behavior of materials is one of the major factors affecting the deformation homogeneity in workpieces during processing by equal channel angular pressing In the present study the difference between plastic flow behavior and deformation homogeneity of strain hardening and strain softening materials were investigated with the aid of finite element simulation Results showed that localization of plastic strain occurred in the strain softening materials and fluctuations were observed in the strain distribution along workpiece In strain hardening materials a more uniform distribution of plastic strain was obtained compared to strain softening material
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