31CrMoV9 and 34CrAlMo5 are high-performance steels used in many industrial applications which machines components exposed to high surface stresses dynamic loads. Depending on the customer needs, these first machined CNC then their surfaces hardened by nitriding. After nitriding, grinding is needed reduce roughness values of product according demand or need production. Grinding a chip removal pr...

The aluminum-L,,VV Auger spectra for elemental Al. Al oxide and Al nitride have been measured in an assessment of the utility of Auger spectroscopy in characterizing thin oxidized Al films used in model supported-metal catalyst studies. Clearly distinct spectra were found for the three surface chemical states. The oxide spectrum was shown to be similar to published spectra from bulk, single-cry...

The effect of Active Screen Plasma Nitriding (ASPN) treatment on the surface-cellular compatibility of an inert aluminosilicate glass surface has been investigated. ASPN is a novel surface engineering technique, the main advantage of which is the capacity to treat homogeneously all kind of materials surfaces of any shape. A conventional direct current nitriding unit has been used together with ...

Nitriding of p-type Si samples by pulsed DC glow discharge is carried out for different Ar concentrations (30% to 90%) in nitrogen-argon plasma whereas the other parameters like pressure (2 mbar), treatment time (4 hr) and power (175 W) are kept constant. The phase identification, crystal structure, crystallinity, chemical composition, surface morphology and topography of the nitrided layer are...

The kinetics of the nitrided layer thickness growth and its structure depend on nitrogen flux from atmosphere to surface. A surface is more significant than a diffusion into substrate, during forming iron nitrides internal nitriding zone. For pure iron, under low pressure, cutting off creates subsurface purpose this paper determine direction in similar situation for steels containing nitride-fo...