Abstract
This review describes how to prevent stainless steels as architectural member from aesthetic degradation caused by corrosion. It was mentioned that proper maintenance and appropriate selection of the materials are important, in order to let the architecture have long enough service time. Nature of atmospheric corrosion on stainless steels are discussed, using rating number method as well as recently developed spot density vs. area ratio plot technique. Results of exposure tests gave guideline for alloy selection relating role of alloying elements and environmental corrosiveness. Rusting process was well characterized by the spot density vs. area ratio chart, which may lead to a diagnostic measure for selecting conditions of cyclic corrosion tests.
