Affiliation:
1. Shanghai Jiaotong University
2. Shanghai Jiao Tong University
Abstract
Ion implantation was applied to modify the surface properties of magnesium alloy. About
75 keV titanium ions with a dose of 5×1017 ions/ cm-2 and about 35 keV nitrogen ions with a dose of
3×1017 ions/ cm-2 were implanted into AZ31 magnesium alloy, respectively. AFM and FESEM were
used to examine the surface morphology of the treated samples. In contrast to the smooth surface
treated by N ion implantation, the Ti-treated surface was severely damaged. AES analysis reveals that
both kinds of ions implanted in AZ31 magnesium alloy took on a quasi-Gaussian distribution in the
near surface region. In the corrosion test, the N-implanted sample showed a better corrosion
resistance in 3.5wt.% NaCl solution than bare AZ31 sample, whereas the Ti-implanted sample
accelerated the corrosion behavior of AZ31 in this solution
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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