Cladding tubes made of ferritic/martensitic or austenitic steel for nuclear fuel elements/fuels and method for subsequently treating a FeCrA protective layer thereon that is suited for high temperatures
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United States of America Patent
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Jun 19, 2012
Grant Date -
Feb 5, 2009
app pub date -
Jun 20, 2006
filing date -
Jun 29, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cladding tube configured for use with nuclear fuels or nuclear feel elements and configured for contact with molten lead or molten lead alloys at up to 800° C. The cladding tube includes a tube including at least one of ferritic/martenisitic steel and austenitic steel. An alloy layer of up to 50 μm thickness is disposed on a surface of the tube and operable for corrosion resistance. The alloy layer includes 0-25% chromium, 3-15% aluminum and 60-97% iron. A method of making the cladding tube includes the use of a pulsed electron beam to melt the alloy layer on the tube.
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