Características de los recubrimientos WC-NiCrBSiFe en función del sistema de proyección térmica

V. Higuera-Hidalgo; F. J. Belzunce-Varela; S. Poveda-Martínez

doi:10.3989/revmetalm.2004.v40.i5.286

Influence of thermal-spray procedure on the properties of WC-NiCrBSiFe coating

Authors

V. Higuera-Hidalgo Universidad de Oviedo, Dpto. Construcción e Ingeniería de Fabricación
F. J. Belzunce-Varela Universidad de Oviedo. Dpto. Ciencia de los Materiales e Ingeniería Metalúrgica
S. Poveda-Martínez Universidad de Oviedo, Dpto. Construcción e Ingeniería de Fabricación

DOI:

https://doi.org/10.3989/revmetalm.2004.v40.i5.286

Keywords:

Thermal-spray, cermets, microstructure, high temperature, boilers

Abstract

WC-NiCrBSiFe coatings are normally used as protection against heat, corrosion and erosion actions encountered in superheater and reheater tubes in power plant boilers. This coating was thermal-spray projected using different procedures (plasma, HVOF and HFPD) onto stainless steel specimens. The microstructures, porosities, oxide contents and microhardnesses of the coatings were determined. Thermal fatigue tests under simulative power plant service conditions were conducted in an experimental combustion chamber and, finally, the adhesion between the substrate and the coating layer was evaluated by means of tensile tests.The obtained results are discussed, and special attention was paid to the specific characteristics of the different spraying procedures.

Downloads

Download data is not yet available.

Downloads

Published

2004-10-30

How to Cite

Higuera-Hidalgo, V., Belzunce-Varela, F. J., & Poveda-Martínez, S. (2004). Influence of thermal-spray procedure on the properties of WC-NiCrBSiFe coating. Revista De Metalurgia, 40(5), 347–351. https://doi.org/10.3989/revmetalm.2004.v40.i5.286

Download Citation

Issue

Vol. 40 No. 5 (2004)

Section

Articles

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.

All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.

Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.