期刊
JOURNAL OF MAGNESIUM AND ALLOYS
卷 9, 期 1, 页码 41-56出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.jma.2020.08.016
关键词
Mg alloy; Rare earth (RE); High strength; Corrosion resistance
资金
- National Natural Science Foundation of China [51871069]
- Domain Foundation of Equipment Advance Research of 13th Five-year Plan [61409220118]
- Science and technology innovation major project of Ningbo City [2019B10103]
Magnesium alloys have great application potential, but improvements in both strength and corrosion resistance are still needed. The addition of rare earth elements can enhance the performance of magnesium alloys, but further research is necessary to improve both strength and anti-corrosion properties.
Magnesium (Mg) alloys have received an increasing interest in the past two decades for their tremendous application potential. The strength and corrosion resistance levels of common Mg alloys are still relativity low, and especially they are to be improved simultaneously. The addition of rare earth (RE) to Mg alloys is believed to be beneficial for both the strength and corrosion resistance, and some RE-modified traditional Mg alloys have been studied and some new RE-containing Mg alloys have been developed by now. However, further simultaneous improvements in both strength and anti-corrosion require a better understanding of the behavior and mechanism of RE in Mg alloys. In this review, the common influence mechanisms of RE on mechanical and anti-corrosion properties of Mg alloys are summarized, and the latest research progress of RE-containing Mg alloys with simultaneously improved strength and corrosion resistance are introduced. It is demonstrated that the research on high-strength and high corrosion resistant RE-containing Mg alloys is still immature, and some opinions and suggestions are put forward for the synergetic improvement of the strength and corrosion resistance of Mg alloys, so as to contribute to the further development of Mg alloys with higher performance. (C) 2020 Published by Elsevier B.V. on behalf of Chongqing University.
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