Toughness testing and high-temperature oxidation evaluations of advanced alloys for core internals
Alloy X-750 was procured from Carpenter Technology and Bodycote in this year. An appropriate TMT was developed on Alloy 439 to obtain materials with refined grain size for property screening tests. Charpy V-notch impact tests were completed for the three ferritic steels Grade 92, Alloy 439, and 14YWT. Fracture toughness tests at elevated temperatures were completed for 14YWT. The tests will be completed for the other alloys in next fiscal year. Steam oxidation tests of the three ferritic steels, 316L, and Zr–2.5Nb have been completed. The steam tests of the Ni-based superalloys and the other austenitic stainless steels will be continued and finished in next fiscal year. Performance ranking in terms of steam oxidation resistance and impact/fracture toughness of the alloys will be deduced.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- DOE Contract Number:
- Resource Type:
- Technical Report
- Research Org:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
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- Country of Publication:
- United States
- 36 MATERIALS SCIENCE; FERRITIC STEELS; AUSTENITIC STEELS; HEAT RESISTING ALLOYS; CHARPY TEST; OXIDATION; TEMPERATURE RANGE 0400-1000 K; FRACTURE PROPERTIES; STEAM; EVALUATION; PERFORMANCE; INCONEL X750; STAINLESS STEEL-316L; ZIRCONIUM BASE ALLOYS; NIOBIUM ALLOYS; BINARY ALLOY SYSTEMS; NICKEL BASE ALLOYS; CORROSION RESISTANCE
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