"TITLE","AUTHORS","SUBJECT","SUBJECT_RELATED","DESCRIPTION","PUBLISHER","AVAILABILITY","RESEARCH_ORG","SPONSORING_ORG","PUBLICATION_COUNTRY","PUBLICATION_DATE","CONTRIBUTING_ORGS","LANGUAGE","RESOURCE_TYPE","TYPE_QUALIFIER","JOURNAL_ISSUE","JOURNAL_VOLUME","RELATION","COVERAGE","FORMAT","IDENTIFIER","REPORT_NUMBER","DOE_CONTRACT_NUMBER","OTHER_IDENTIFIER","DOI","RIGHTS","ENTRY_DATE","OSTI_IDENTIFIER","PURL_URL" "Toughness degradation evaluation of low alloyed steels by electrical resistivity","Nahm, S H; Yu, K M; Kim, S C [Korea Research Inst. of Standards and Science, Taejon (Korea, Republic of)]; Kim, A [Department of Mechanical Engineering, Kongju Univ., Kongju, Chungnam (Korea, Republic of)]","22 NUCLEAR REACTOR TECHNOLOGY; LOW ALLOY STEELS; FRACTURE PROPERTIES; SERVICE LIFE; AGING; ELECTRIC CONDUCTIVITY; EVALUATION; ROTORS","","Remaining life of turbine rotors with a crack can be assessed by the fracture toughness on the aged rotors at service temperature. DC potential drop measurement system was constructed in order to evaluate material toughness nondestructively. Test material was 1Cr-1Mo-0.25V steel used widely for turbine rotor material. Seven kinds of specimen with different degradation levels were prepared according to isothermal aging heat treatment at 630 deg. C. Electrical resistivity of test material was measured at room temperature. It was observed that material toughness and electrical resistivity decreased with the increase of degradation. The relationship between fracture toughness and electrical resistivity was investigated. Fracture toughness of a test material may be determined nondestructively by electrical resistivity. (author). 13 refs, 7 figs.","","INIS; OSTI as DE97640092","International Atomic Energy Agency, Vienna (Austria). International Working Group on Life Management of Nuclear Power Plants","","IAEA","1997-09-01","","English","Conference","","","","Conference: IAEA specialists` meeting on methodology for pressurized thermal shock evaluation, Esztergom (Hungary), 5-8 May 1997; Other Information: PBD: 1997; Related Information: Is Part Of Methodology for pressurized thermal shock evaluation. Proceedings of the IAEA specialists meeting. Working material; PB: 457 p.","","Medium: ED; Size: pp. 291-301","ON: DE97640092","IWG-LMNPP-96/1; CONF-9705163-","","Other: ON: DE97640092; TRN: XA9744642059463","https://doi.org/","","2018-05-18","519619","https://www.osti.gov/etdeweb/servlets/purl/519619"