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Gelles, D.S.; Hu, W.L.; Huang, F.H.; Johnson, G.D.
Hanford Engineering Development Lab., Richland, WA (USA)1983
Hanford Engineering Development Lab., Richland, WA (USA)1983
AbstractAbstract
[en] Results are reported for base metal and weld metal specimens of HT-9 and Modified 9Cr-1Mo following irradiation in HFIR at 550C to 5 dpa. The DBTT shifts in irradiated base metal specimens were 300C for HT-9 and 900C for 9Cr-1Mo with further shifts of 200C for weld metal. Concurrently, strength as measured by hardness increased 15 percent for HT-9 and 25 percent for 9Cr-1Mo. The hardness increases can be attributed in part to defect cluster 1.5 to 3.0 nm in diameter at densities approaching 1017 cm-3 and also to lower rates of cavity nucleation ahead of the propagating crack
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1983; 15 p; Available from NTIS, PC A02/MF A01; 1 as DE84005382
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Report
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ALLOYS, BARYON REACTIONS, CARBON ADDITIONS, CHROMIUM ALLOYS, CORROSION RESISTANT ALLOYS, CRYSTAL STRUCTURE, DESTRUCTIVE TESTING, ENRICHED URANIUM REACTORS, HADRON REACTIONS, HEAT RESISTING ALLOYS, HIGH ALLOY STEELS, IMPACT TESTS, IRON ALLOYS, IRON BASE ALLOYS, IRRADIATION REACTORS, ISOTOPE PRODUCTION REACTORS, MARTENSITIC STEELS, MATERIALS TESTING, MECHANICAL PROPERTIES, MECHANICAL TESTS, MOLYBDENUM ADDITIONS, NUCLEAR REACTIONS, NUCLEON REACTIONS, REACTORS, RESEARCH AND TEST REACTORS, RESEARCH REACTORS, STAINLESS STEELS, STEELS, TANK TYPE REACTORS, TEST REACTORS, TESTING, THERMAL REACTORS, VANADIUM ADDITIONS, WATER COOLED REACTORS, WATER MODERATED REACTORS
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