9AUGUST - 2023METALLURGICALLY FORMED NIOBIUM CARBIDE COMPOSITES FOR CORROSION, EROSION AND WEAR PROTECTIONRecognition of the potential of NbC Composites has brought with it new approaches and the development of novel feedstock materialsCarbide or Cobalt. 5) Broad functionality of applications ­ Wire Arc, Laser Cladding/Laser ­ Direct Energy Deposition (DED), Plasma Transferred Arc etc.6) Excellent ductility ­ The coating can be bent 25 degrees without cracking, which is ~ 25% better than other competing products in this segment.An example of an Aluminum base NbC Composite coating microstructure and post-bend test pictures are shown in Figures 2 and 3.The Aluminum base NbC composite (Microstructure shown in Figure 2) offers excellent ductility, and it can be bent more than 65 degrees without any cracking. The average hardness of this composite was ~ 750HV (61 HRC), which is approximately 4X greater than Stainless Steel 304 material. This coating protects any steel substrate against saltwater corrosion. All these coating features make this material an excellent candidate for marine, offshore, and Navy flight deck applications against corrosion, wear and anti-slip issues.Though this material was tested and validated for specific component applications, this NbC composite could extend its application in broader Industrial, Metals and Mining, Pulp and Paper, Oil and Gas, Power, Wind, Hydro, and other Government agencies like DOD, DOE etc. uses.Twin-arc and cored wire products have been in the market for many years and continuous innovations like this newly developed NbC composite coatings system can revive components making them longer lasting and more sustainable while maintaining cost-effectiveness, environmental friendliness and excellent use properties. Figure 2. Metallurgically formed NbC particles homogeneously spread within the Aluminum base metal matrix splats.Figure 3. Post-bend testing of Al base NbC composite coating.
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