Long-Term Phase Change of Rust Layer on Weathering Steel with Considering Cr-Substituted Ultra-Fine Goethite

Abstract

We have tried to show detailed description of the long-term stabilizing process of rust layer on weathering steel reported previously by considering Cr-substituted ultra-fine goethite. As a result, detailed long-term rust-phase change on weathering steel is newly proposed, that is the change from initial poorly protective rust to the final protective Cr-substituted fine goethite via Cr-substituted ultra-fine goethite.