Affiliation:
1. Department of Surface Engineering, Corrosion, and Durability, National Centre for Metallurgical Research (CENIM/CSIC), Avenida Gregorio del Amo 8, 28040 Madrid, Spain
Abstract
Extensive research work has thrown light on the requisites for a protective rust layer to form on weathering steels (WSs) in the atmosphere, one of the most important is the existence of wet/dry cycling. However, the abundant literature on WS behaviour in different atmospheres can sometimes be confusing and lacks clear criteria regarding certain aspects that are addressed in the present paper. What corrosion models best fit the obtained data? How long does it take for the rust layer to stabilize? What is the morphology and structure of the protective rust layer? What is an acceptable corrosion rate for unpainted WS? What are the guideline environmental conditions, time of wetness (TOW), SO2, and Cl−, for unpainted WS? The paper makes a review of the bibliography on this issue.
Subject
Process Chemistry and Technology,General Materials Science
Cited by
36 articles.
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