Accessible Requires Authentication Published by De Gruyter January 11, 2014

Microstructures and corrosion resistance of three typical superlight Mg–Li alloys

Zhikun Qu, Ruizhi Wu, Jinghuai Zhang and Milin Zhang

Abstract

Three typical superlight Mg–Li alloys (Mg-5Li-3Al-2Zn, Mg-8Li-3Al-2Zn and Mg-14Li-3Al-2Zn) with the matrixes of alfa(Mg), alfa(Mg) + beta(Li) and beta(Li), respectively, are prepared. The microstructures of the alloys are characterized using optical microscopy and X-ray diffraction. The corrosion resistant properties of the alloys are characterized by means of hydrogen evolution, weight loss and potentiodynamic polarization. The alloys are also oxidized at elevated temperature. The microstructure and corrosion resistant property of the alloys after oxidation are also characterized.


* Correspondence address, Professor Ruizhi Wu, College of Materials Science & Chemical Engineering, Harbin Engineering University, 145 Nantong Str., Harbin, 150001, P. R. China, Tel.: +86-451-82569890, Fax: +86-451-82569890, E-mail:

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Received: 2013-03-27
Accepted: 2013-07-17
Published Online: 2014-01-11
Published in Print: 2014-01-09

© 2014, Carl Hanser Verlag, München