| abstract |
The present invention relates to certain configurations of coated articles that are resistant to corrosion. In some embodiments, the article includes a substrate and a corrosion-resistant coating disposed on an entire surface or a portion of the surface of the substrate. The corrosion resistant coating can withstand degradation after exposure to strong acids having a negative pH with a corrosion rate of less than 20 mils / year. The coating may also, if desired, have a hardness greater than Vickers hardness (HV) of 600 Vickers, as measured on the basis of ASTM E92-17. |