Effect of Heat Treatment on the Microstructure and Properties of HVOF-Sprayed Co-Cr-W Coating

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00472798" target="_blank" >RIV/61389021:_____/16:00472798 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23640/16:43928113
Result on the web
<a href="http://dx.doi.org/10.1007/s11666-015-0365-5" target="_blank" >http://dx.doi.org/10.1007/s11666-015-0365-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11666-015-0365-5" target="_blank" >10.1007/s11666-015-0365-5</a>

Result language
angličtina
Original language name
Effect of Heat Treatment on the Microstructure and Properties of HVOF-Sprayed Co-Cr-W Coating
Original language description
Co-Cr-W HVOF-sprayed protective coatings are used for their high oxidation and wear resistance. Apart from the oxidation resistance, the stability of their mechanical properties in relation to thermal loading is crucial with respect to the most common high-temperature application areas. This work is focused mainly on evaluation of the heat-induced changes in the phase composition and related mechanical properties. It was shown that the original powder, composed fully from face-centered cubic Co-based alloy, partly changes its phase composition during spraying to a hexagonal close-packed (hcp) structure. The annealing further increases the ratio of the hcp phase in the structure. The heat-induced phase changes are accompanied by an increase in the coatings' hardness and cohesion strength. The abrasive and adhesive wear behavior was evaluated. While the coatings' heat treatment had a positive effect on the coefficient of friction, the abrasive and adhesive wear resistance of annealed coating was lower compared to as-sprayed coating.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JK - Corrosion and material surfaces
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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