Mo-Cr系窒化物皮膜の耐酸化性と耐食性 [in Japanese] Oxidation Resistance and Corrosion Resistance of Molybdenum-Chromium Nitride Layer [in Japanese]
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For Mo-Cr nitride layer prepared by NH<SUB>3</SUB> gas nitriding of pure Mo subjected to Cr-diffusion treatment, the oxidation behavior in air and corrosion behavior in boiling sulfuric acid were investigated. The surface nitride layer consisted of γ-Mo<SUB>2</SUB>N type solid solution of which Mo-Cr ratio was almost 1 : 1 on the surface. Although γ-Mo<SUB>2</SUB>N layer obtained by nitriding pure Mo was oxidized at temperatures above 773 K, Mo-Cr nitride layer exhibited superior oxidation resistance up to 1073 K. The corrosion resistance of Mo-Cr nitride layer in boiling sulfuric acid was as excellent as that of γ-Mo<SUB>2</SUB>N layer.
- Journal of the Japan Society of Powder and Powder Metallurgy
Journal of the Japan Society of Powder and Powder Metallurgy 56(8), 529-533, 2009-08-15
Japan Society of Powder and Powder Metallurgy