Microstructure and corrosion behaviour of laser surface melting treated WE43 magnesium alloy

被引：0
|
作者：
Liu C. [1 ,2 ]
Li Q. [1 ,2 ]
Liang J. [1 ]
Zhou J. [1 ]
Wang L. [1 ]
机构：
[1] State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou
[2] University of Chinese Academy of Sciences, Beijing
来源：
Liang, Jun (jliang@licp.cas.cn) | 1600年 / Royal Society of Chemistry卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Magnesium alloys;
D O I：
10.1039/C5RA27010C
中图分类号：
学科分类号：
摘要：
An attempt has been made to improve the corrosion behavior of WE43 magnesium alloy by laser surface melting (LSM) using a 10 kW continuous-wave CO 2 laser. The microstructure evolution of WE43 alloy after LSM treatment was analyzed by using scanning electron microscopy, energy-dispersive spectroscopy and metallographic microscope. The corrosion resistance of specimens was assessed by electrochemical and immersion tests. Results showed that the LSM treated WE43 alloy presented a uniform microstructure with refined grains, enriched alloying elements and redistributed intermetallic compounds. The LSM treatment effectively improved corrosion resistance of WE43 alloy, which was mainly associated with enrichment of alloying elements in a-Mg matrix and uniform distributions of the refined Mg 14 Nd 2 Y phase. © The Royal Society of Chemistry 2016.
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收藏
页码：30642 / 30651
页数：9
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