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

Journal Article · · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
 [1];  [2];  [3];  [1]
  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

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