Effect of Precipitated Phases on Corrosion of Mg95.8Gd3Zn1Zr0.2 Alloy with Long-Period Stacking Ordered Structure
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- 作者：Xi-Mei Zong ; Dan Wang ; Wei Liu ; Kai-Bo Nie…
- 关键词：Mg–Gd–Zn ; Corrosion properties ; Long ; period stacking ordered (LPSO) ; Microstructure
- 刊名：Acta Metallurgica Sinica (English Letters)
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：29
- 期：1
- 页码：32-38
- 全文大小：1,617 KB
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Dan Wang (1) (2)
Wei Liu (1) (2)
Kai-Bo Nie (1) (2)
Chun-Xiang Xu (1) (2)
Jin-Shan Zhang (1) (2)
1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
2. Shanxi Key Laboratory of Advanced Magnesium-Based Materials, Taiyuan, 030024, China
3. Department of Chemistry, Taiyuan Normal University, Taiyuan, 030031, China - 刊物主题：Metallic Materials; Spectroscopy/Spectrometry; Organometallic Chemistry; Tribology, Corrosion and Coatings; Nanotechnology; Characterization and Evaluation of Materials;
- 出版者：Springer Berlin Heidelberg
- ISSN：2194-1289
文摘
The microstructure of the precipitated phases of Mg95.8Gd3Zn1Zr0.2 alloys with long-period stacking ordered structure before and after heat treatment is discussed. The corrosion properties of the as-cast (F), solid-solution (T4) and aging-treated (T6) alloys in 1% NaCl solution are studied. The hydrogen evolution and electrochemical measurements display that the as-cast Mg95.8Gd3Zn1Zr0.2 alloy with the continuous network eutectic phase exhibits the greatest corrosion resistance, while T6 sample with some needle-like phases and the particle phases is the worst among the three alloys. It is proposed to be mainly related to the amount, composition, microstructure and distribution of the precipitated phases. Keywords Mg–Gd–Zn Corrosion properties Long-period stacking ordered (LPSO) Microstructure