The Use of Novel Clad Powders to Produce HVOF-Sprayed Coatings for Oil/Gas Applications

The Use of Novel Clad Powders to Produce HVOF-Sprayed Coatings for Oil/Gas Applications. G. Fisher1, A. Hancox2 & T. Wolfe1 1Alberta Innovates – Technology Futures, Alberta, Canada 2Allomet Corporation, Pennsylvania, USA The processing of oil sand and heavy oil deposits is a highly aggressive environment. The combination of abrasive sands and corrosive media can lead to shortened and unpredictable component lives. A common method to try and extend the operational life of equipment is the application of tungsten carbide-based coatings by HVOF spraying. However, current commercial coatings do not necessarily meet the performance requirements of the industry. ‘Tough-Coated Hard Powders’ (TCHP) are a range of novel clad powders, consisting of extremely hard ceramic particles encapsulated in a tough outer shell. In this study, results will be presented that assess the potential benefits of using TCHP materials on the performance of HVOF-deposited coatings, compared with typical WC-Co-Cr coatings.