Biaxial creep performance of CWSR Zircaloy-4 cladding at emulated off-normal conditions of interim dry storage facility

Journal Article · 30 August 2018 · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

DOI: https://doi.org/10.1016/j.msea.2018.08.102 · OSTI ID:1480683

Lan, Kuan-Che ^[1]; Tung, Hsiao-Ming ^[2]; Miao, Yinbin ^[3]; Stubbins, James F. ^[1]

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1. University of Illinois at Urbana-Champaign, Urbana, IL (United States)
2. Institute of Nuclear Energy Research, Longtan, Taoyuan (Taiwan)
3. Argonne National Lab. (ANL), Lemont, IL (United States)

In this study, biaxial creep behavior of hydrided Zircaloy-4 cladding was tested at 500 degrees C. Creep-life was inversely proportional to H-concentration up to 750 wppm. The weakening through hydride reorientation of hydrided specimens was not observed by optical microscopy. The power-law stress exponents and the TEM observation supported the high-temperature climb mechanism dominated the creep behavior in secondary stage.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy - Nuclear Energy University Programs (NEUP)
• Grant/Contract Number: AC02-06CH11357; NE000446
• OSTI ID: 1480683
• Journal Information: Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 736, Issue C; ISSN 0921-5093
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English