Cold spray Copper Copper compounds Copper corrosion Copper cu Copper materials Corrosion potentials Corrosion rate Corrosion resistance Electron back scatter diffraction Electron backscatter diffraction Electron microscopy High resolution transmission electron microscopy Microstructure Nanoscale characterization Nanotechnology Nuclear waste disposal Polarization Polycrystalline materials Polycrystalline microstructure Scanning electron microscopy Sodium chloride Sulfide-induced corrosion Sulfur compounds Sulphide-induced corrosion Waste disposal