A part of a program to develop erosion resistant coatings for advanced gun barrels, electrodeposition of tantalum and tantalumchromium alloys from fused FLINAK (eutectic mixture of LiF-KF-NaF) has been investigated. Tantalum-chromium alloys containing 2-6 % chromium were obtained by codepositing tantalum and chromium from an electrolyte containing 10 wt% TaF5(added as K2TaF7) and 0.5-1.5 % Cr (added as CrF3), at 800 C and 15-40 ma/sq cm current density. The alloy coatings were smooth and columnar in structure. The microhardness of these coatings increased with the increase of chromium content. (DePo)


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    Title :

    Electrodeposition of tantalum and tantalum-chromium alloys


    Additional title:

    Elektroplattieren von Tantal und Tantalchromlegierungen


    Contributors:
    Ahmad, I. (author) / Spiak, W.A. (author) / Janz, G.J. (author)

    Published in:

    Publication date :

    1980


    Size :

    37 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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