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Abstract：
The Al-based amorphous and nanocrystalline composite coatings with the composition of Al-Ni-Y-Co and Al-Ni-Mm-Fe were prepared on AZ91 Mg-based alloys by high velocity arc spraying technique (HVAS). The structure character of the coatings indicates that coatings contain the mixture of amorphous phases and crystalline and there are both less than 2% porosity. The electrochemical tests of the coatings and the substrate were studied. The coatings show the passivation ability during polarization, but AZ91 Mg-based alloys show little passivation. The corrosion current density of the coatings is lower than that of AZ91 Mg-based alloys. The results show that the coatings have an excellent corrosion resistance for AZ91 Mg-based alloys in 5 wt% NaCl solution.
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RARE METAL MATERIALS AND ENGINEERING
ISSN： 1002-185X
Year： 2012
Volume： 41
Page： 439-442
0 . 7 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
JCR Journal Grade：4
CAS Journal Grade：4
Cited Count：
WoS CC Cited Count： 2
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 5
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