Crystallite of Rust on Newly Exposed Weathering Steel (approx. 5000X) 1
Recrystallized Barrier Rust on Four-year-exposed Weathering Steel (approx. 600X) 1
1. W. P. Gallagher, Application of the Scanning Electron Microscope to the Study of Rust Films , NACE, Philadelphia, Pennsylvania, March 4, 1970.