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CORROSION AND WEAR BEHAVIOR OF HIGH VELOCITY OXYGEN FUEL SPRAYED WC-CO COATINGS

Dragoş Uţu

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s12.104View metrics

Abstract

Tungsten carbides coatings are one of the mo st promising coatings used against wear and corrosion in industry, in particular in aerospace, automation, transportation and power generation system. The paper presents the investigation of WC-Co coatings produced by high velocity oxy- fuel (HVOF) spraying method using two feedstock powders with different particles granulation. The substrate selected for depositions was a C45 steel. The morphology and phases modification of the coatings was analyzed by Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD). The corrosion tests of the materials were ca rried out at ambient temperature in 1 M NaCl solution and the sliding wear behavi our was determined using the pin-on-disk method. /

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Publication details

Title
CORROSION AND WEAR BEHAVIOR OF HIGH VELOCITY OXYGEN FUEL SPRAYED WC-CO COATINGS
Authors
Dragoş Uţu
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
WC-Co coatingsHVOF sprayingwear resistancecorrosion behaviour
References4

  1. Perry J.M., Neville A. & Hodgkiess T. A comparison of the corrosion behavior of WC-Co-Cr and WC-Co HVOF thermally sprayed coatings by in situ atomic force microscopy (AFM), Journal of Thermal Spray Technology, United States, pp. 536-541,

  2. Utu D., Marginean, G., Buzdugan D., Secosan I., Serban V.A. The influence of deposition process on corrosion and slidin g wear behavior of WC-Co coatings, Scientific Bulletin of the “Politehnica” University of Timisoara, Romania, pp. 1-4, 2009

  3. Ishinawa Y., Kuroda S., Kawakita J. , Sakamoto Y., Takaya M., Sliding wear properties of HVOF sprayed WC-20%Cr 3-C2-7%Ni cermet coatings, Netherlands, pp. 4718-4727, 2007

  4. Monticelii C., Balbo A. & Zuchi F. Corrosi on and tribocorrosion behavior of cermet and cermet/nanoscale multilayer CrN/NbN co atings, Surface & Co ating Technology, Netherlands, pp. 1452-1460, 2010

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