Journal
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
Volume 23, Issue 10, Pages 1196-1203Publisher
SPRINGER
DOI: 10.1007/s12613-016-1339-4
Keywords
magnesium lithium alloys; cerium; sodium chloride solutions; corrosion rate; polarization
Ask authors/readers for more resources
Mg-8Li-3Al+xCe alloys (x = 0.5wt%, 1.0wt%, and 1.5wt%) were prepared through a casting route in an electric resistance furnace under a controlled atmosphere. The cast alloys were characterized by X-ray diffraction, optical microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The corrosion behavior of the as-cast Mg-8Li-3Al+xCe alloys were studied under salt spray tests in 3.5wt% NaCl solution at 35A degrees C, in accordance with standard ASTM B-117, in conjunction with potentiodynamic polarization (PDP) tests. The results show that the addition of Ce to Mg-8Li-3Al (LA83) alloy results in the formation of Al2Ce intermetallic phase, refines both the alpha-Mg phase and the Mg17Al12 intermetallic phase, and then increases the microhardness of the alloys. The results of PDP and salt spray tests reveal that an increase in Ce content to 1.5wt% decreases the corrosion rate. The best corrosion resistance is observed for the LA83 alloy sample with 1.0wt% Ce.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available