| Influence of rare earth element Ce and La addition on corrosion behavior of AZ91 magnesium alloy | |
| W. Liu; F. Cao; L. Zhong; L. Zheng; B. Jia; Z. Zhang; J. Zhang | |
| 2009 | |
| Source Publication | Materials and Corrosion-Werkstoffe Und Korrosion
 |
| ISSN | 0947-5117 |
| Volume | 60Issue:10Pages:795-803 |
| Abstract | Two types of AZ91 magnesium alloys containing rare earth element Ce or La were fabricated. Hydrogen evolution and electrochemical tests were carried out to evaluate the corrosion behavior of new AZRE (RE = Ce or La) and AZ91. alloys in 3.5% NaCl solutions (pH 6.50). Various corrosion rate tests indicated that addition of RE obviously enhanced corrosion resistance of AZ91 magnesium alloy. The optimal content of RE was 0.92% for Ce and 0.66% for La. Scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and low-angle X-ray diffraction (XRD) were used to characterize the effect of RE addition on microstructure and corrosion product film of AZ91 magnesium alloy. The refined beta phase and formation of gamma phase in AZRE alloy were observed by SEM, which resulted in the improvement of corrosion resistance due to the depression of microgalvanic couples. Moreover, the enhanced protective effectiveness of corrosion products was another reason for the improved corrosion resistance. |
| description.department | [liu, w.; cao, f.; zhong, l.; zheng, l.; jia, b.; zhang, z.; zhang, j.] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [zhang, j.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;liu, w (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;nelson_cao@zju.edu.cn |
| Keyword | Resistance Microstructure Improvement Chloride Cerium Nacl |
| URL | 查看原文 |
| WOS ID | WOS:000271555900004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/32109 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | W. Liu,F. Cao,L. Zhong,et al. Influence of rare earth element Ce and La addition on corrosion behavior of AZ91 magnesium alloy[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2009,60(10):795-803. |
| APA | W. Liu.,F. Cao.,L. Zhong.,L. Zheng.,B. Jia.,...&J. Zhang.(2009).Influence of rare earth element Ce and La addition on corrosion behavior of AZ91 magnesium alloy.Materials and Corrosion-Werkstoffe Und Korrosion,60(10),795-803. |
| MLA | W. Liu,et al."Influence of rare earth element Ce and La addition on corrosion behavior of AZ91 magnesium alloy".Materials and Corrosion-Werkstoffe Und Korrosion 60.10(2009):795-803. |
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