Show simple item record

dc.contributor.authorGorlach, Igor A.
dc.date.accessioned2017-11-16T12:39:17Z
dc.date.available2017-11-16T12:39:17Z
dc.date.issued2009
dc.identifier.issn1224-5615
dc.identifier.urihttp://10.11.10.50/xmlui/handle/123456789/4885
dc.descriptionThe Annals of ''Dunarea de Jos'' University of Galati : Fascicle XIV : MECHANICAL ENGINEERING, ISSN 1224 - 5615ro_RO
dc.description.abstractMany components and structures require protection against corrosion, oxidization, excessive heat and wear. This is achieved by applying various types of coatings on the component base material, hence providing the necessary protection and improving performance of aircraft systems. For example, the application of the thermal barrier coatings (TBC), in the last decade, on the aircraft turbine blades, vanes and combustors brought up a substantial increase in the aircraft engine efficiency and reduction of NOx. Coatings are produced using various deposition techniques of which, thermal spraying technologies play a significant role. This paper presents a thermal spraying system developed on the principles of the High Velocity Air Flame (HVAF) process, as well as the results of thermal spraying of various materials, such as Zn-Al alloys, 316L stainless steel and WC-Co carbide powders. The anticorrosion Zn-Al coatings sprayed with the HVAF system showed considerably higher bond strength than coatings obtained by the conventional methods, indicating the advantage of this method in areas where the adhesion strength is critically important. The highly dense structure of the coating obtained with HVAF eliminates a need for a top paint coat for anticorrosion protection, which is typically applied on metal sprayed coatings to extend service life. The developed HVAF system produced high quality coatings of 316L stainless steel and WC-Co carbides as shown by the coating analysis and test results. In addition, the developed HVAF thermal spray system provides competitive spray rates, high deposition efficiency, and the process can be easily performed on-site. Lower operating costs of the HVAF process, in comparison with other high velocity systems, make this technology viable for anticorrosion protection and wear resistance.ro_RO
dc.language.isoenro_RO
dc.publisherUniversitatea "Dunărea de Jos" din Galațiro_RO
dc.subjectthermal sprayingro_RO
dc.subjectHVAFro_RO
dc.titleDevelopment of the Multipurpose Thermal Spraying Systemro_RO
dc.typeArticlero_RO


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record