Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499136 | Scripta Materialia | 2012 | 4 Pages |
Abstract
Plastic deformation behavior during high-pressure torsion (HPT) was analyzed by the finite element method in order to investigate heterogeneous deformation in HPT-processed disks. The effective strain and strain rate developed increase from the center to the edge of the HPT-processed disk; however, they decrease to zero at the surface corner of the disk due to the vertical wall constraint under high pressure, resulting in a stagnant region termed the “dead metal zone”.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dong Jun Lee, Eun Yoo Yoon, Lee Ju Park, Hyoung Seop Kim,