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Realization of low-temperature superplasticity in Mg-Al-Zn alloy sheets processed by differential speed rolling
- Authors
- Kim, W. J.; Park, J. D.; Wang, J. Y.; Yoon, W. S.
- Issue Date
- Oct-2007
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- severe plastic deformation (SPD); magnesium alloys; superplasticity; grain refining; differential speed rolling (DSR)
- Citation
- SCRIPTA MATERIALIA, v.57, no.8, pp.755 - 758
- Journal Title
- SCRIPTA MATERIALIA
- Volume
- 57
- Number
- 8
- Start Page
- 755
- End Page
- 758
- ISSN
- 1359-6462
- Abstract
- AZ61 sheets processed by severe plastic deformation (SPD) using differential speed rolling (DSR) with a high speed ratio contained ultrafine grains 0.3-0.5 mu m in size after a single rolling pass at 473 K for a thickness reduction ratio of 70%. The sheets exhibited good low-temperature superplasticity at 473 and 523 K, including a maximum elongation of 850% at 523 K and 3 x 10(-4)s(-1). The SPD-DSR process has great potential for use in the production of superplastic magnesium sheets. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
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Related Researcher
- Kim, Woo Jin
- Graduate School (Department of Materials Science and Engineering)