Alloy development for cladding and duct applications. [LMFBR]

Conference · Mon Feb 02 04:00:00 EST 1981

OSTI ID:6350807

Straalsund, J L; Johnson, G D

Three general classes of materials under development for cladding and ducts are listed. Solid solution strengthened, or austenitic, alloys are Type 316 stainless steel and D9. Precipitation hardened (also austenitic) alloys consist of D21, D66 and D68. These alloys are similar to such commercial alloys as M-813, Inconel 706, Inconel 718 and Nimonic PE-16. The third general class of alloys is composed of ferritic alloys, with current emphasis being placed on HT-9, a tempered martensitic alloy, and D67, a delta-ferritic steel. The program is comprised of three parallel paths. The current reference, or first generation alloy, is 20% cold worked Type 316 stainless steel. Second generation alloys for near-term applications include D9 and HT-9. Third generation materials consist of the precipitation strengthened steels and ferritic alloys, and are being considered for implementation at a later time than the first and second generation alloys. The development of second and third generation materials was initiated in 1974 with the selection of 35 alloys. This program has proceeded to today where there are six advanced alloys being evaluated. These alloys are the developmental alloys D9, D21, D57, D66 and D68, together with the commerical alloy, HT-9. The status of development of these alloys is summarized.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC14-76FF02170
• OSTI ID: 6350807
• Report Number(s): HEDL-SA-2344; CONF-810606-89; ON: DE81027843
• Country of Publication: United States
• Language: English

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ALLOYS
BREEDER REACTORS
CHROMIUM ALLOYS
CHROMIUM STEELS
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IRON ALLOYS
IRON BASE ALLOYS
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MOLYBDENUM ALLOYS
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