Environmentally Compliant Wear and Corrosion Resistant Coatings

Environmental, Safety and Health (ES&H) issues associated with many wear and corrosion resistant coatings have been identified on the Office of the Secretary of Defense’s (OSD) Action and Watch lists. This list includes Electrolytic Hard Chrome (EHC) and HVOF tungsten carbide cobalt coatings. Inovati has been developing ES&H compliant coatings to replace these hazardous materials and processes. Analysis of potential candidates reduces the options to aluminum, iron, and titanium alloys. Amorphous iron alloys formulated as Particle Reinforced Metal Matrix Composites (PRMMC) provide alternative coatings with superior wear and corrosion resistance that can be deposited at low temperatures with the Kinetic Metallization (KM) process. This paper will present the results of the qualification tests performed on these ES&H compliant coatings and potential military and industrial applications.