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Muhammad Zakria Butt,Dilawar Ali,Muzamil Aftab,Farooq Bashir,M. Shahid Pervaiz,M. Usman Tanveer,M. Waqas Khaliq 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.9
Five W-alloy specimens, containing 8.57% Ni, 6.34% Cu, and 1.34% Mo, were bombarded with 5.2 MeV singly chargednitrogen ions. The ions dose range was 5 × 1014–1 × 1016 ions/cm2. XRD patterns portrayed diffraction peaks of pure W aswell as of Cu0.4W0.6,MoNi4,and Ni4Wphases. Harris analysis showed that the preferentially oriented planes depend on thenitrogen ions dose. The structural parameters, namely lattice strain and crystallite size, vary with nitrogen ions dose alike. Same pattern is followed by surface hardness and electrical resistivity. The increase in the values of all the parameters withions dose is rapid in the range 0–1 × 1015 ions/cm2 and later on slow till the maximum ions dose 1 × 1016 ions/cm2. However,the interdependence of each parameter on the other ones was linear. Surface roughness of the specimens was found todecrease on increasing ions dose. On the other hand, surface hardness registers a rise as crystallite size increases, and hencefollows Inverse Hall–Petch relation.