Electrospark Coating from Nanocrystalline Alloy

Abstract

The article describes the properties of wear resistant electrospark coating made of nanocrystalline alloy of type 5БДСР (Finemet). It is proved that electrospark coating has nanocrystalline structure which is like amorphous matrix with nanocrystals α – Fe. Coating thickness is 33 µm, micro-hardness is 8461 - 11357 MPa, wear resistance is 0,55×104 s/g. Coating of nanocrystalline alloy of type 5БДСР can be used to increase wear resistance of machinery working surfaces.

U radu su prikazane osobine otpornosti na habanje elektrolučnog premaza od nanokristalne legure tipa 5БДСР (Finemet). Dokazano je da elektrolučni premaz ima nanokristalnu strukturu koja izgleda kao amorfna matrica sa nanokristalima α – Fe. Debljina premaza iznosi 33 µm, mikrotvrdoća 8461 - 11357 MPa, otpornost na habanje 0,55×104 s/g. Premaz od nanokristalne legure tipa 5БДСР se može koristiti za povećanje otpornosti na habanje radnih površina mašina.