ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Ceramic coatings were synthesized on pure Mg and binary Mg-7.1wt%Al alloy by plasmaelectrolytic oxidation (PEO) technique, and the effect of current ratio, C2/C1, ranging from 0.2 to0.85 on their mechanical and electrochemical properties was investigated. As the C2/C1 ratioincreased, the thickness of the coating layer increased, while surface roughness was almostunchanged. The hardness and wear resistance had a marked tendency to increase with increasingC2/C1 ratio and Mg-Al alloy showed higher hardness and wear resistance at all C2/C1 ratioscompared to pure Mg. The weight loss of the pure Mg and Mg-Al alloy in 3.5%NaCl solution wasreduced by coatings. However, it had no dependence on the C2/C1 ratio. The wear resistance of thecoated Mg-Al alloy was better than that of the coated pure Mg
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.767.pdf