Abstract
1. Molybdenum samples with two-layer chromium-nickel coatings possess the highest resistance to oxidation. 2. The highest thermal stability is characteristic for samples with a single-layer chrome coating. 3. Oxidation resistance increases, and thermostability decreases, as the thickness of the electrodeposited coating increases. 4. The deterioration of the protective properties of the layer is caused by the diffusion of molybdenum through the layer when its concentration at the surface attains 7–10%. 5. For purposes of galvanic protection of molybdenum it is recommended to use a two-layer coating consisting of a chromium layer 25–50μ thick and nickel layer 200–250μ thick. This assures approximately a 300-hr life of the coating at a temperature of 1100°.
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