Abstract
Ti-Pd surface alloys were prepared by bombarding a Pd-plated Ti alloy with Xe ions. From AES-PRO, XPS-PRO and SIMS analysis it has been shown that the distribution of Pd is quite homogeneous through the thickness of the surface layer, a hardening phase, TiC, was formed in the surface layer and a TiO 2 passive film was found on the exposed surface. The average corrosion rate of the Ti-Pd surface alloy in boiling 1N H 2SO 4 is about 1/60 that of the Ti alloy substrate, and in the outer-surface region it makes three orders of magnitude improvement in the corrosion rate. There are many differences in micromorphology between the Ti-Pd surface alloy and the Ti alloy substrate after corrosion testing. Microhardness of the surface alloy increases 43% and the dry friction coefficient decreases 40% compared to the Ti alloy substrate.
Published Version
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