Development of Oxide Layers on High-Temperature Alloys as Protection Against Hydrogen Permeation
Fusion Science and Technology / Volume 8 / Number 2P2 / September 1985 / Pages 2379-2383
Material Property and Tritium Control / Proceedings of the Second National Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Dayton, Ohio, April 30 to May 2, 1985) / dx.doi.org/10.13182/FST85-A24634
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Hydrogen permeation through high-temperature resistant metals can be reduced by three orders of magnitude at 800 °C by means of protective layers of several jam thickness produced by controlled preoxidation. The coating conditions must be adjusted individually to the various alloys. With the alloys under investigation, the following parameters have proven successful: steam or steam/H2, 900 to 1000°C, thermocycling mode of oxidation with intermediate cooling periods.
