PROPERTIES AND CHARACTERIZATION OF COATINGS MADE USING JET KOTE™ THERMAL SPRAY TECHNIQUE
1986; Elsevier BV; Linguagem: Inglês
10.1016/b978-0-08-031878-3.50097-6
AutoresK.V. Sreenivasa Rao, D.A. Somerville, D.A. Lee,
Tópico(s)High-Temperature Coating Behaviors
ResumoThe JET KOTE” system is a new thermal spray technique which relies on the continuous internal combustion of a fuel gas with oxygen to produce a high velocity exhaust jet. Powder is injected into this pressurized gas stream, where it is heated and accelerated toward the part to be surfaced. Using this technique, coatings of several wear resistant materials have been made for applications in petrochemical and chemical, materials processing, aerospace, and other engineering fields. In this paper, data relating to JET KOTE coatings of tungsten carbide-cobalt (of various cobalt contents), chromium carbide-nickel chromium, and a new iron-base wear resistant alloy called TRISTELLE” alloy TS-2 are presented. It has been shown that the JET KOTE process can be used to produce dense coatings of WC-Co with properties equivalent to those produced using the detonation gun and are much superior to plasma sprayed coatings. JET KOTE coatings of WC-Co also appear to have the added advantage of containing a higher amount of WC phase and considerably less eta phase thereby increasing their resistance to cracking.
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