Hematite, Oxygen, Scale (corrosion), Deformation, Alloys, Decomposition, Iron, Copper base alloys, Plastic deformation, Electron microscopy, Contamination, Nanocrystals, Consolidation, Transmission electron microscopy, Clusters, Ferrous alloys, Metal powders, Air pollution, Oxidation, Aberration, Iron oxides, Copper, Plastics, Low temperature