Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications

Coatings

Maria Oksa¹  Erja Turunen¹  Tomi Suhonen¹  Tommi Varis¹ 

[1] VTT Technical Research Centre of Finland, POB 1000, VTT 02044, Finland; E-Mails:

关键词: thermal spray;    coating;    HVOF;    optimization;    characterization;    standardization;   

DOI  :  10.3390/coatings1010017

来源: mdpi

【 摘 要 】

In this work High Velocity Oxy-fuel (HVOF) thermal spray techniques, spraying process optimization, and characterization of coatings are reviewed. Different variants of the technology are described and the main differences in spray conditions in terms of particle kinetics and thermal energy are rationalized. Methods and tools for controlling the spray process are presented as well as their use in optimizing the coating process. It will be shown how the differences from the starting powder to the final coating formation affect the coating microstructure and performance. Typical properties of HVOF sprayed coatings and coating performance is described. Also development of testing methods used for the evaluation of coating properties and current status of standardization is presented. Short discussion of typical applications is done.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.