Compatibility of helium- and soidum-bonded hyperstoichimetric (U,Pu)C with advanced cladding alloys. [LMFBR]

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7096014

Latimer, T W; Andrew, J F

Out-of-pile tests were conducted for 1000 h at 600/sup 0/C and 725/sup 0/C to determine the compatibility of helium- and sodium-bonded (U,Pu)C + 9-12 vol percent (U,Pu)/sub 2/C/sub 3/ with austenitic alloys Type 330 stainless steel, A286, M813, PE-16, Inconel 706, and Inconel 718. The compatibility of ferritic alloy HT-9 was determined only in the sodium-bonded tests. As a reference alloy, Type 316 stainless steel was also tested. At 600/sup 0/C, none of the alloys showed evidence of carburization in the sodium-bonded tests and only Inconel 706 and 718 showed significant compatibility effects in the helium-bonded (contact) tests. at 725/sup 0/C, carbide precipitation was observed in the matrix and grain boundaries of the alloys to depths of 50 to 150 ..mu..m in the helium-bonded tests. In the sodium-bonded tests, no effects were observed in alloys M813, PE-16, and HT-9; there was precipitation in the matrix and grain boundaries to depths of 45 to 125 ..mu..m in the remaining alloys.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7096014
• Report Number(s): LA-UR-77-1377; CONF-771008-2
• Country of Publication: United States
• Language: English

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