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

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:736

Article

Lan, Kuan-Che¹  Tung, Hsiao-Ming²  Miao, Yinbin³  Stubbins, James F.¹ 

[1] Univ Illinois, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA

[2] Inst Nucl Energy Res, Taoyuan 32546, Taiwan

[3] Argonne Natl Lab, Chem & Fuel Cycle Technol Div, Lemont, IL 60439 USA

关键词: Zircaloy-4;    Creep;    Biaxial;    Hydride;    Dry storage;   

DOI  :  10.1016/j.msea.2018.08.102

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

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