Electrodeposition of tantalum and tantalum-chromium alloys

descriptionPublicationkeyboard_double_arrow_right Article 01 May 1981 English Publisher:Springer Science and Business Media LLCJournal:Journal of Applied Electrochemistry, volume 11, pages 291-297 (issn: 0021-891X, eissn: 1572-8838,

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Authors: I. Ahmad; W. A. Spiak; G. J. Janz;

doi: 10.1007/bf00613946

Electrodeposition of tantalum and tantalum-chromium alloys

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Abstract

As part of a programme to develop erosion resistant coatings for advanced gun barrels, electrodeposition of tantalum and tantalum-chromium alloys from fused Flinak has been investigated. Tantalum-chromium alloys containing 2–6% chromium were obtained by co-depositing tantalum and chromium from an electrolyte containing 10 wt% TaF5 and 0.5–1.5% Cr (as K3CrF6) at 800° C. The alloy coatings are smooth and columnar in structure. The microhardness of these coatings increases with the increase of chromium content. With chromium-rich alloys, an equiaxed alloy structure is observed, with a hardness greater than for pure tantalum or chromium.

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