Journal
SCRIPTA MATERIALIA
Volume 158, Issue -, Pages 131-135Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.08.049
Keywords
Mg alloys; Precipitation hardening; Twinning; Detwinning; Orientation relationship
Categories
Funding
- National Natural Science Foundation of China [51871036, 51421001]
- National Key Research and Development Program of China [2016YFB0301102]
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The orientation of basal precipitates in AZ8O Mg alloy is altered by coupling twinning, aging and detwinning processes. This gives the prismatic precipitates with their broad plane parallel to one of the {10 (1) over bar0}(alpha). Such prismatic precipitates significantly improve the compressive and tensile strength of AZ80 Mg alloy compared to the basal precipitates. This paper provides a new way to regulate precipitate orientation and hence its hardening response in Mg alloys. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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