The influence of surface modification on the morphological characteristics and microhardness of HVG steel
During the experiment, carried out in two stages, a thin-film coating of molybdenum is obtained on substrates made of steel grade HVG. The first stage included preliminary ion implantation of molybdenum. The second stage is the production of a thin-film molybdenum coating by balanced magnetron spu...
Saved in:
| Summary: | During the experiment, carried out in two stages, a thin-film coating of molybdenum is obtained on
substrates made of steel grade HVG. The first stage included preliminary ion implantation of molybdenum.
The second stage is the production of a thin-film molybdenum coating by balanced magnetron sputtering.
During the study using scanning electron microscopy, microphotographs are obtained that visually
confirmed the uniformity and homogeneity of the thin-film coating. The values of average surface
roughness Sa is obtained by probe microscopy suggest that it decreases after applying a thin-film
coating. Using the energy dispersive analysis method, the mass concentration of molybdenum on the
surface of the modified tool steel was determined, which is 92,4 %. Experimental modes of modification
of KhVG steel with a thin-film coating have been obtained, which have a significant effect on the
average roughness and microhardness of its surface. It has been shown that the experimental modes
used in the work make it possible to obtain a strengthening of the surface of HVG steel after applying
a thin-film coating of molybdenum, with preliminary ion implantation several times. The adhesion force
between the thin-film coating and the HVG steel substrate is determined. High adhesion values obtained
using the method proposed by Gerald Frankel from Ohio State University indicate good quality of the
applied coating. All of the above indicates the prospects of using the above-mentioned methodology
in the mechanical engineering industry. |
|---|---|
| ISSN: | 2588-0373 2587-764X |