Electron work function and physic-mechanical properties of chromium-containing ion-doped steels

Abstract

Variation and local surface distribution of electron work function for a number of chromium steels bombarded with high-current density nitrogen ions beam at different temperatures have been investigated. Data obtained are compared with results of chemical composition analysis, analysis of microhardness and microstructure of blocks, data of wear and corrosion tests. Correlation between electron work function, microstructure and physical-mechanical properties of ion implanted surface layers has been established. It has been demonstrated that surface areas with the biggest local value of electron work function reveal the most intensive corrosion rupture. Ion beam induced structural defects create local electrical disturbances, which significantly influence electron work function.