期刊
SCRIPTA MATERIALIA
卷 179, 期 -, 页码 16-19出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.01.001
关键词
Magnesium alloys; Phase transformations; Mechanical properties
类别
资金
- Science and Technology Research Program of Chongqing Municipal Education Commission [KJQN201801114]
- Chongqing Research Program of Basic Research and Frontier Technology Scientific Research [cstc2019jcyj-msxmX0111, cstc2018jcyjAX0107]
- China Postdoctoral Science Foundation [2018M643407]
Strain-induced phase transformation in a dual-phase Mg-Li alloy after a severe deformation has been investigated. beta-Li phase was transformed into alpha-Mg phase as a consequence of large strain cold rolling. The morphology and density of the strain-induced phase could be controlled by slip activation in the beta-Li phase. A multi-direction rolling procedure was designed to enhance phase transformation behavior. High density strain-induced phase refined phase structure and greatly promoted the yield strength of the material without a sacrificing the ductility. Strain-induced phase transformation is a potential method for improving the mechanical properties in dual-phase alloys. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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