期刊
SCRIPTA MATERIALIA
卷 160, 期 -, 页码 39-43出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.09.022
关键词
Magnesium alloys; < c plus a > slip; Grain boundary segregation; Molecular dynamics (MD); Monte Carlo simulation
类别
资金
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2016R1A2B4006680]
- National Research Foundation of Korea [2016R1A2B4006680] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Using atomistic simulations, we investigated the effects of Zn on Mg alloys to reveal the mechanism underlying the good ductility and strong basal texture of Mg-Zn solid solutions at room temperature. We found that Zn can activate < c + a > slip by reducing critical resolved shear stress anisotropy among slip systems that improves ductility and that Zn has a low grain boundary segregation tendency. Because twinning and recrystallization, which have decisive effects on the texture evolution, will not be affected significantly due to the low segregation of Zn, Mg-Zn alloys are expected to yield a texture similar to that of pure Mg. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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