Abstract
Surface modification of a material requires a known temperature field in the treated zone resulting from the technology of specific materials processing and related with the power density distribution of a surface heat source and heat conduction. Glow discharge electron gun was developed to realise the electron beam heat source of modified power density distribution. A numerical analysis of two-dimensional heat transfer for a flux of energy with optional distribution w( r) irradiating the material surface was carried out. The selection of a proper cathode geometry, electron beam power, working distance and interaction time makes it possible to obtain predicted temperature distribution in the treated material and expected shape of modified zone. The surface modification by an electron beam of modified power density distribution is expected to provide greater selectivity and precision of the treated area.
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