Cristin-resultat-ID: 1067638
Sist endret: 20. januar 2014, 11:57
NVI-rapporteringsår: 2013
Resultat
Vitenskapelig artikkel
2013

Thermally Sprayed SiC Coatings for Offshore Wind Turbine Bearing Applications

Bidragsytere:
  • Fahmi Mubarok
  • Sergio Armada Nieto
  • Ignacio Fagoaga og
  • Nuria Espallargas

Tidsskrift

Journal of thermal spray technology (Print)
ISSN 1059-9630
e-ISSN 1544-1016
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2013
Volum: 22
Hefte: 8
Sider: 1303 - 1309

Importkilder

Isi-ID: 000327861900006

Beskrivelse Beskrivelse

Tittel

Thermally Sprayed SiC Coatings for Offshore Wind Turbine Bearing Applications

Sammendrag

Tribological tests were conducted on thermally sprayed silicon carbide (SiC) coatings to investigate its potential on reducing wear in offshore wind turbine bearings. The tests were carried out under dry conditions, 3.5 wt.% NaCl solution, and polyalfaolefin (PAO)-lubricated conditions. In order to obtain good quality SiC coatings, it is compulsory to modify the feedstock to limit SiC decomposition during atmospheric spraying process. The SiC feedstock used in this research has been modified with yttrium aluminum garnet (Y3Al5O12) oxide additives that originated from its metal salt precursors. High-frequency pulse detonation (HFPD) technique has been utilized to produce coatings of around 100 μm in thickness. The sliding tests have recorded the lowest coefficient of friction (COF) of 0.15 in PAO condition and the highest COF of 0.50 in dry sliding. The wear tracks morphology show that during dry sliding test, the coatings experience abrasive wear accompanied by tribo-oxidation reaction that initiates crack formation along the splat boundaries. On the other two sliding test conditions (NaCl and PAO), polishing of asperities and some grain plowing from the splats were observed in the wear tracks. Tribochemical wear was found to be the main mechanism producing smooth surfaces. Nevertheless, in all cases, the wear losses were negligible.

Bidragsytere

Fahmi Mubarok

  • Tilknyttet:
    Forfatter
    ved Institutt for maskinteknikk og produksjon ved Norges teknisk-naturvitenskapelige universitet

Sergio Armada

Bidragsyterens navn vises på dette resultatet som Sergio Armada Nieto
  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

ignacio fagoaga

Bidragsyterens navn vises på dette resultatet som Ignacio Fagoaga
  • Tilknyttet:
    Forfatter
    ved Tecnalia

Nuria Espallargas

  • Tilknyttet:
    Forfatter
    ved Institutt for maskinteknikk og produksjon ved Norges teknisk-naturvitenskapelige universitet
1 - 4 av 4