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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 31 (1980), S. 347-353 
    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: Mechanisms of the selective electrolytical corrosion of homogeneous alloysThe problem of the selective removal of less noble components during the anodic dissolution of alloys is surveyed. For the case of binary alloys containing a noble metal component the characteristic polarization curves and the presently discussed mechanisms of the preferential dissolution of the less noble component are presented. A critical comparison between various experimental results yields some aspects in favour of the surface diffusion mechanism. A recent attempt to calculate the polarization curve of a preferentially corroding noble metal alloy is explained.
    Notes: In Form eines Überblicks wird das Problem der selektiven Auflösung unedler Legierungskomponenten erörtert. Am Beispiel der Korrosion edelmetallhaltiger Legierungen werden dabei charakteristische Stromspannungskurven besprochen und die derzeit diskutierten Mechanismen der selektiven Korrosion homogener Legierungen vorgestellt. Der kritische Vergleich verschiedener experimenteller Ergebnisse ergibt einige Gesichtspunkte, die für das Vorherrschen eines Oberflächendiffusionsmechanismus sprechen. Ein unlängst unternommener Versuch zur Berechnung der anodischen Stromspannungskurven edelmetallhaltiger Legierungen wird erläutert.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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