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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 34 (1983), S. 179-186 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: On the diffusion and interaction of hydrogen in prestressing steels of different sensitivity against hydrogen - summarized experimental data and quantumchemical resultsInvestigation of the influence of hydrogen on prestressing steels used as building materials shows that material involved in practical damage by hydrogen-influence is characterized by a higher hydrogendiffusion coefficient already of the not tensioned material. Responsible for this is a specific influence of inner surfaces coming into existence by local material defects. Their metastable reaction with hydrogen may lead to local decohesion of the metallic bond and so cracks may be induced if the steel is tensioned.
    Notes: Die Untersuchung der Beeinflussung von baupraktischen Spannstählen durch Wasserstoff ergibt, Daß in der Praxis nachweislich infolge Wasserstoffeinwirkung schadhaftes Material durch einen gesteigerten Wasserstoff-Diffusionskoeffizienten bereits im ungespannten Zustand gekennzeichnet ist. Hierfür erweisen sich spezifische Struktureinflüsse von inneren Oberflächen mit Störstellen, selbst nur von reinen Eisenoberflächen, als entscheidend. Tritt Wasserstoff mit ihnen in Wechselwirkung, kann er allein dort örtlich den Metallzusammenhalt lockern und so beim gespannten Stahl Rißbildung ermöglichen.
    Type of Medium: Electronic Resource
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