(НИЯУ МИФИ, 2017) Borisyuk, Yu. V.; Kozlova, V. V.; Mozgrin, D. V.; Oreshnikova, N. M.; Stepanova, T. V.; Pisarev, A. A.; Писарев, Александр Александрович
Plasma nitriding is a method of thermochemical treatment, which is widely used to enhance surface hardness, fatigue strength, and corrosion resistance of steels [1,2]. In industry, glow discharge is commonly used for this purpose. A specific task of plasma technologies is treating of cavities, which are usually inaccessible for plasma. Still, the need to modify cavities and tubes of small diameters and large aspect ratios exists. Abnormal glow discharge with hollow cathode in the pulse-periodic mode was proposed for this purpose in [3]. This work is devoted to investigation of ignition and properties of the abnormal glow discharge in tubes and demonstration of nitriding of internal surfaces of the tubes.