Structure and Mechanical and Corrosion Properties of a Magnesium Mg–Y–Nd–Zr Alloy after High Pressure Torsion
- 作者: Lukyanova E.1,2, Martynenko N.1,2, Serebryany V.1, Belyakov A.3, Rokhlin L.1, Dobatkin S.1,2, Estrin Y.2,4
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隶属关系:
- Baikov Institute of Metallurgy and Materials Science
- Laboratory of Hybrid Nanostructured Materials
- Belgorod State University
- Monash University
- 期: 卷 2017, 编号 11 (2017)
- 页面: 912-921
- 栏目: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171810
- DOI: https://doi.org/10.1134/S0036029517110088
- ID: 171810
如何引用文章
详细
The structure and the properties of an Mg–Y–Nd–Zr alloy (WE43) are studied after high pressure torsion (HPT) in the temperature range 20–300°C. Structure refinement proceeds mainly by deformation twinning with the formation of a partial nanocrystalline structure with a grain size of 30–100 nm inside deformation twins. The WE43 alloy is shown to be aged during heating after HPT due to the decomposition of a magnesium solid solution. HPT at room temperature and subsequent aging causes maximum hardening. It is shown that HPT significantly accelerates the decomposition of a magnesium solid solution. HPT at all temperatures considerably increases the tensile strength and the yield strength upon tensile tests and significantly decreases plasticity. Subsequent aging additionally hardens the WE43 alloy. A potentiodynamic study shows that the corrosion resistance of this alloy after HPT increases. However, subsequent aging degrades the corrosion properties of the alloy.
作者简介
E. Lukyanova
Baikov Institute of Metallurgy and Materials Science; Laboratory of Hybrid Nanostructured Materials
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119049
N. Martynenko
Baikov Institute of Metallurgy and Materials Science; Laboratory of Hybrid Nanostructured Materials
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119049
V. Serebryany
Baikov Institute of Metallurgy and Materials Science
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119991
A. Belyakov
Belgorod State University
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Belgorod, 308015
L. Rokhlin
Baikov Institute of Metallurgy and Materials Science
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119991
S. Dobatkin
Baikov Institute of Metallurgy and Materials Science; Laboratory of Hybrid Nanostructured Materials
编辑信件的主要联系方式.
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119991; Moscow, 119049
Yu. Estrin
Laboratory of Hybrid Nanostructured Materials; Monash University
Email: dobatkin@imet.ac.ru
俄罗斯联邦, Moscow, 119049; Melbourne, VIC, 3800
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