Original scientific paper

Boronized steels with corundum-baddeleyite coatings

P. Pokorny ; Czech Technical University – Klokner Institute, Prague, Czech Republic
J. Kolisko ; Czech Technical University – Klokner Institute, Prague, Czech Republic
P. Bouska ; Czech Technical University – Klokner Institute, Prague, Czech Republic
V. Brozek ; Institute of Plasma Physics ASCR v.v.i, Prague, Czech Republic
T. F. Kubatik ; Institute of Plasma Physics ASCR v.v.i, Prague, Czech Republic
L. Mastny ; University of Chemistry and Technology Prague, Czech Republic

Abstract

The paper describes preparation and properties of anti-corrosion and anti-abrasive coatings from corundum-baddeleyite ceramics deposited on surface of low-carbon boronized steel S235JRH-1.0038 (EN 10025-1) by plasma spraying method. Adhesive interlayers Fe₂B reaches bond strength of up to 20 MPa in the pull-off tests, the ZrO₂ - Al₂O₃ - SiO₂ coatings have a value of fracture adhesion of 4 - 6 MPa. Hardness of these ceramic coatings on steel is as high as 1 800 HV_{100 and its polarization resistance is 1 600 Ω/cm2 to 4 000 Ω/cm2.}

Keywords

boronized steel; corundum-baddeleyite coatings; anti-corrosion properties; plasma spraying

Hrčak ID:

153615

URI

https://hrcak.srce.hr/153615

Publication date:

1.7.2016.

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