期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 669, 期 -, 页码 72-78出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.01.174
关键词
Duplex Mg-Li alloy; Texture; Deformation mode; Pyramidal slip; Mechanical properties
资金
- NSFC [51171081, 51371062, U1460102]
- NSFHLJ [ZD201411]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars (Heilongjiang Province)
- Project for Innovative Talents of Science and Technology of Harbin [2014RFXXJ006]
Texture evolution is strongly dependent on the deformation mode during thermo-mechanical treatments. In this paper, we report the texture evolution in a duplex Mg-Li alloy. The results provide an evidence of deformation mode transition in the hexagonal-close-packed (hcp) alpha phase with various thickness reductions. The activation sequence of deformation modes is basal slip first, and then pyramidal slip during hot-rolling to a thickness reduction of 40%. The relative activity of slip decreases with further thickness reduction. After annealing, basal texture is strengthened and pyramidal component disappears due to static recrystallization and grain growth. The microstructure, specifically texture evolution in both hcp alpha and body-centered cubic (bcc) beta phase and their effects on mechanical properties are quantitatively analyzed and assessed. (C) 2016 Elsevier B.V. All rights reserved.
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