Texture and mechanical properties of ultrafine-grained Mg-3Al-1Zn alloy sheets prepared by high-ratio differential speed rolling
- Authors
- Kim, W. J.; Lee, H. W.; Yoo, S. J.; Park, Y. B.
- Issue Date
- 25-Jan-2011
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Mechanical characterization; Magnesium alloys; Thermomechanical processing; Grain refinement; Texture
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.528, no.3, pp.874 - 879
- Journal Title
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
- Volume
- 528
- Number
- 3
- Start Page
- 874
- End Page
- 879
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/19951
- DOI
- 10.1016/j.msea.2010.09.007
- ISSN
- 0921-5093
- Abstract
- Mechanical properties and textures of the ultrafine grained (UFG) Mg-3Al-1Zn (AZ31) alloy with a mean grain size of 1 mu m produced by high-ratio differential speed rolling were investigated. The resulting material exhibited high strength and relatively high ductility at ambient temperature. The high strength was attributed to grain-size and texture strengthening, while the high ductility was attributed to suppression of inhomogeneous twinning and increased strain-rate-sensitivity. The rolling temperature and the amount of shear strain accumulated during HRDSR affected the basal texture intensity and the rotation angle of the basal poles. Bimodal grain-size distribution obtained by annealing the UFG AZ31 at 573 K for a short time period resulted in considerable improvement of uniform elongation. (C) 2010 Elsevier B.V. All rights reserved.
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Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
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