ELECTROCHEMICAL ASSISTED PLASMA PROCESSING FOR ADVANCED MATERIALS
V. A. ANDREI, C. DIACONU, G. ONCIOIU, M. FULGER, O. RUSU, E. COACA,
C. DUCU, V. MALINOVSKI
Complex surface structures were developed on stainless steels used as
structural nuclear materials, by various Plasma processing methods which
- Electrochemical assisted Plasma Processing (PE): the steel substrates
were modified by nitruring and nitro-carburising plasma diffusion
- Carbonic films electrodeposition.
The processes and structures obtained in various experimental conditions
were characterized by correlation of the results of the complementary
techniques: XPS, “depth profiling”, XRD, LAXRD and EIS. The corrosion
behaviour was studied by electrochemical techniques, and was correlated to
the microstructure and the composition of the surface layers which are
strongly depending of the electrical parameters. An overall description of
the processes involved in the surface properties improvement is presented.