Plastic deformation analysis of accumulative back extrusion-Reference-Cited by-同舟云学术

Plastic deformation analysis of accumulative back extrusion

Published:2009-12-01 Issue:12 Volume:100 Page:1715-1719
ISSN:2195-8556
Container-title:International Journal of Materials Research
language:
Short-container-title:

Author:

Yoon S. C.¹,Nagasekhar A. V.²,Kang S.-Y.³,Kim H. S.⁴

Affiliation:

1. a Center for Advanced Aerospace Materials, POSTECH, Pohang, Korea

2. b ARC Centre of Excellence for Design in Light Metals, Materials Engineering, The University of Queensland, Brisbane, QLD, Australia

3. c POSCO-China Holding Co., Shanghai, China

4. d Department of Materials Science and Engineering, POSTECH, Pohang, Korea

Abstract

AbstractFinite element analysis for the recently developed plastic deformation process, accumulative back extrusion, is carried out to understand the plastic deformation behavior during the processing in terms of geometry, equivalent strain, principal stress, and load history. The simulated results show that the deformation is highly nonuniform, and that it is almost impossible to achieve strain homogeneity by repeating the accumulative back extrusion process. In addition, the folding defects generated in the workpiece with cycles of accumulative back extrusion can cause surface fracture.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.110236/pdf

Reference28 articles.

1. Producing bulk ultrafine-grained materials by severe plastic deformation

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