Abstract
In order to study the effect of titanium ion implantation on the aqueous corrosion behavior of zircalloy-4, specimens were implanted with titanium ions with a fluence ranging from 1×1016 to 1×1017ionscm−2, using a metal vapor vacuum arc source at an extraction voltage of 40kV. The valence state and depth distribution of the elements in the surface layer of the samples were analyzed by X-ray photoelectron spectroscopy and Auger electron spectroscopy, respectively. The potentiodynamic polarization technique was employed to evaluate the aqueous corrosion resistance of implanted zircalloy-4 in a 1M H2SO4 solution. It was found that a significant improvement was achieved in the aqueous corrosion resistance of zircalloy-4 implanted with titanium ions. The larger the fluence, the better is the corrosion resistance of the implanted samples. Finally, the mechanism of the corrosion behavior of titanium-implanted zircalloy-4 was discussed.
Published Version
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