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DOE OSTI · 1632576

Cold spray chromium coating for nuclear fuel rods

Lahoda, Edward J.·Xu, Peng·Karoutas, Zeses·Ray, Sumit·Sridharan, Kumar·Maier, Benjamin·Johnson, Greg
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Abstract

A method is provided for coating the substrate of a component, such as a zirconium alloy cladding tube, for use in a water cooled nuclear reactor under normal operating conditions and under high temperature oxidation conditions. The method includes heating a pressurized carrier gas to a temperature between 200° C. and 1200° C., adding chromium or chromium-based alloy particles having an average diameter of 20 microns or less to the heated carrier gas, and spraying the carrier gas and particles onto the substrate at a velocity, preferably from 800 to 4000 ft./sec. (about 243.84 to 1219.20 meters/sec.), to form a chromium and/or chromium-based alloy coating on the substrate to a desired thickness.

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36 MATERIALS SCIENCE37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Lahoda, Edward J., Xu, Peng, Karoutas, Zeses, Ray, Sumit, Sridharan, Kumar, Maier, Benjamin, Johnson, Greg. 2020-02-18. Cold spray chromium coating for nuclear fuel rods. https://www.osti.gov/biblio/1632576

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36 MATERIALS SCIENCE↗