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Finite Element Analysis of Deformation Homogeneity During Continuous and Batch Type Equal Channel Angular Pressing |
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| Authors: | Jaimyun Jung Seung Chae Yoon Hyun-Joon Jun Hyoung Seop Kim |
| Affiliation: | 1. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Korea 2. Research & Development Team, Hyundai HYSCO, Chungnam, 343-831, Korea 3. Power Reactor Fuel Development, Korea Atomic Energy Research Institute, Daejeon, Korea 4. Center for Advanced Aerospace Materials, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Korea |
| Abstract: | Equal channel angular pressing (ECAP) is the most promising and interesting process for refining the grain size to an ultrafine grain or nanosize by imposing severe plastic deformation into the workpiece and repeating the process while maintaining the original cross-section of the workpiece. In this paper, we simulated the batch type ECAP and the continuous type equal channel multi-angular pressing (ECMAP), which can impose large deformation by repeating the shear deformation, using the finite element method and investigated the similarity and difference of the two processes. In particular, modified die design of the continuous type ECMAP was proposed for strain uniformity. |
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