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High-Temprature Oxidation Protective Coatings for Vanadium-Base Alloys

Author: Rausch, J. J.
Author: Holtz, F. C.
Corporate Author: Armour Research Foundation
Corporate Report Number: ARF-B6001-1
Date of Publication: 1962-12-10
Pages: 10
Contract: N600(19)59182
AD Number: AD0291513
Original AD Number: AD-291 513

The basic parameters relating the pack-siliconizing of V-base alloys are being investigated with the objective of optimizing protective capability and reliability. Coating time, temperature, and the effect of double processing are being evaluated and relationships drawn to the accompanying oxidation resistance and reproducibility. Oxidation behavior and other properties of compounds based on (V, Nb) Ni2, (V, Nb) Ni3, (V, Nb) Co2, and (V, Nb) Co3 were studied at 2000 and 2200 F. Cobalt-containing compounds had relatively poor oxidation resistance, whereas most of the nickel-base compositions exhibited low weight changes.

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