A Review of Recently Patented Work on Thermal Sprayed Coatings Used for Wear and Corrosion Protection

The application of thermally sprayed ceramic or metallic coatings has become an important part of surface coating technology. Over the last two decades, the industry has seen extensive development of sophisticated equipment that has simplified the application of thermal spray coating to complex surfaces. The availability of a broad range of tailored feedstock materials, and sensitive characterization and quality assurance methods has made surface coatings and their improved deposition techniques increasingly attractive. The drive for new and improved materials and characterization methods has forced engineers and designers to modify old techniques and invented new ones to satisfy the growing demand for thermal spray materials. These materials are used for wear and corrosion protection of engineered components and structures. This review will cover significant patented progress in the field of wear- and corrosionresistant thermal spray coatings achieved during the past five years.