Theses and Dissertations from UMD

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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Park, KyunghaSubject: search.filters.subject.steel

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    Corrosion Resistance of Weathering Steels
    (2004-08-30) Park, Kyungha; Albrecht, Pedro; Fu, Chung C.; Amde, Amde M.; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    To reduce both the initial and the maintenance painting costs, engineers in many states have increasingly been designing bridges made of bare, exposed weathering steel. However, after many years of experience, engineers are concerned about the long-term performance of weathering steel bridges. Nevertheless, as with all new materials, much research has been conducted to find solutions for atmospheric corrosion to enhance the successful application of weathering steel to bridges for more economic and environmental benefits Numerous representative data show the corrosion behavior not only of weathering steel, but also copper steel, and carbon steel under localized microenvironment conditions investigated by many researchers: angle of exposure, orientation, shelter, continuously moist conditions, industrial pollutants, deicing salts, galvanic corrosion, pitting and crevices. The results and discussions demonstrate that uncoated weathering steels should not be exposed in the following conditions: marine or heavily industrial environment, high rainfall or humidity conditions, sheltered conditions, and some other bad design conditions. Therefore, for proper bridge design, the micro-environment as well as the macro-environment should be considered with caution and a study of previous experience by a corrosion engineer as a significant factor in preventing further corrosion.