R. B. Rebak, E. Dolley, Wanming Zhang, R. Umretiya, A. Hoffman
{"title":"Enhanced Mechanical Properties of Iron-Chromium-Aluminum Cladding for Light Water Reactor Fuels","authors":"R. B. Rebak, E. Dolley, Wanming Zhang, R. Umretiya, A. Hoffman","doi":"10.1115/pvp2022-80557","DOIUrl":null,"url":null,"abstract":"\n Iron-chromium-aluminum (FeCrAl) alloys are being characterized to be used in light water reactors for the cladding of the fuel. This family of alloys were never used before in a reactor environment so their behavior should be evaluated. This manuscript describes the enhanced mechanical properties and thermal creep resistance of two FeCrAl alloys (PMC26M & FA-SMT or APMT-2) as compared with the current Zircaloy-2 based cladding. At 450°C and under a nominal hoop stress of 138 MPa (20ksi), Zircaloy-2 tubes suffer rapid creep while the two FeCrAl alloys do not show any evidence of creep at a higher nominal hoop stress of 324 MPa (47 ksi). FA-SMT had higher creep resistance than PMC26M at 600°C and 800°C mainly due to precipitate strengthening in FA-SMT.","PeriodicalId":434862,"journal":{"name":"Volume 4B: Materials and Fabrication","volume":"50 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Volume 4B: Materials and Fabrication","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/pvp2022-80557","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Iron-chromium-aluminum (FeCrAl) alloys are being characterized to be used in light water reactors for the cladding of the fuel. This family of alloys were never used before in a reactor environment so their behavior should be evaluated. This manuscript describes the enhanced mechanical properties and thermal creep resistance of two FeCrAl alloys (PMC26M & FA-SMT or APMT-2) as compared with the current Zircaloy-2 based cladding. At 450°C and under a nominal hoop stress of 138 MPa (20ksi), Zircaloy-2 tubes suffer rapid creep while the two FeCrAl alloys do not show any evidence of creep at a higher nominal hoop stress of 324 MPa (47 ksi). FA-SMT had higher creep resistance than PMC26M at 600°C and 800°C mainly due to precipitate strengthening in FA-SMT.
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