Study of the mechanical behavior of the hydride blister/rim structure in Zircaloy-4 using in-situ synchrotron X-ray diffraction

Jun Li Lin, Xiaochun Han, Brent J. Heuser, Jonathan D. Almer

Research output: Contribution to journalArticle

Abstract

High-energy synchrotron X-ray diffraction was utilized to study the mechanical response of the f.c.c δ hydride phase, the intermetallic precipitation with hexagonal C14 lave phase and the α-Zr phase in the Zircaloy-4 materials with a hydride rim/blister structure near one surface of the material during in-situ uniaxial tension experiment at 200 °C. The f.c.c δ was the only hydride phase observed in the rim/blister structure. The conventional Rietveld refinement was applied to measure the macro-strain equivalent response of the three phases. Two regions were delineated in the applied load versus lattice strain measurement: a linear elastic strain region and region that exhibited load partitioning. Load partitioning was quantified by von Mises analysis. The three phases were observed to have similar elastic modulus at 200 °C.

Original languageEnglish (US)
Pages (from-to)299-307
Number of pages9
JournalJournal of Nuclear Materials
Volume471
DOIs
StatePublished - Apr 1 2016

Keywords

  • Lattice strain
  • Rietveld refinement
  • Synchrotron diffraction
  • Zirconium alloys
  • Zirconium hydride

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Fingerprint Dive into the research topics of 'Study of the mechanical behavior of the hydride blister/rim structure in Zircaloy-4 using in-situ synchrotron X-ray diffraction'. Together they form a unique fingerprint.

  • Cite this