HIGH TEMPERATURE EROSION WEAR OF CERMET PARTICLES REINFORCED SELF-FLUXING ALLOY MATRIX HVOF SPRAYED COATINGS

  • Andrei Surzhenkov Tallinn University of Technology
  • Dmitry Goljandin Tallinn University of Technology
  • Rainer Traksmaa Tallinn University of Technology
  • Mart Viljus Tallinn University of Technology
  • Kristofer Talviste Paide Machine Factory
  • Aare Aruniit Tallinn University of Technology
  • Jyrki Latokartano Tampere University of Technology
  • Priit Kulu Tallinn University of Technology
Keywords: self-fluxing alloy, cermet, composite coating, high temperature wear, erosion wear

Abstract

In the present paper, the resistance of high velocity oxy-fuel (HVOF) sprayed TiC-NiMo and Cr3C2-Ni cermet particles reinforced NiCrSiB self-fluxing alloy matrix coatings to high temperature erosion wear is studied. Microstructure of the coatings was examined by SEM, phase composition was determined by XRD. A four-channel centrifugal particle accelerator was applied to study the high temperature erosion wear of the coatings. The impact angles were 30 and 90 degrees, initial particle velocity was 50 m/s, temperature of the test - 650 degrees. Volume wear of the coatings was calculated and compared to the respective values of the reference materials. Wear mechanisms were studied by SEM.

DOI: http://dx.doi.org/10.5755/j01.ms.21.3.7617

Author Biographies

Andrei Surzhenkov, Tallinn University of Technology
Department of Materials Engineering, researcher
Dmitry Goljandin, Tallinn University of Technology
Department of Materials Engineering
Rainer Traksmaa, Tallinn University of Technology
Centre for Materials Research
Mart Viljus, Tallinn University of Technology
Centre for Materials Research
Aare Aruniit, Tallinn University of Technology
Department of Materials Engineering
Jyrki Latokartano, Tampere University of Technology
Mechanical Engineering and Industrial Systems
Priit Kulu, Tallinn University of Technology
Department of Materials Engineering
Published
2015-07-27
Section
METALS, ALLOYS, COATINGS