The structure and properties of the PM material Vanadis 30 with surface treatment

The aim of the paper was to point to some processes that take place during plasma nitriding and coating of the PM steel-Vanadis 30-1.13% C, 6.3% W, 4.2% Cr, 3.0% 1 V, 5.0% Mo, 8.4% Co. The properties of the layers produced by plasma nitriding fulfil all expectations, for example increased cutting life of tools made from high speed steels, increased surface hardness and decreased coefficient of friction. The specimens obtained were evaluated for the hardness of nitrided layers, microstructure, surface composition by EDX-analysis, hardness of coats at 500 g loading and geometry of indentations, bending strength and the cutting properties.