Abstract
Abstract The hardening effect on the surface layers of WC–Co alloys after Ar+- and N+-ion implantation with the fluence in the range 1 ÷ 8.7 × 1017 cm−2 has been investigated at room temperature and under heating with an ion beam. The depth of the Auger distribution profiles and the microhardness of implanted samples were measured. The radiation-stimulated diffusion of nitrogen atoms and the microhardness enhancement were observed. The contribution of the polymorphic Co-phase transformation and the production of Co–N compounds is discussed.
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