Phase transformations in neutron-irradiated Zircaloys Metadata

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  • Main Title Phase transformations in neutron-irradiated Zircaloys


  • Author: Chung, H.M.
    Creator Type: Personal


  • Name: Argonne National Lab., IL (USA). Materials Science and Technology Div.
    Place of Publication: United States


  • Creation: 1986-04-01


  • English


  • Content Description: Microstructural evolution in Zircaloy-2 and -4 spent-fuel cladding specimens after approx.3 years of irradiation in commercial power reactors has been investigated by TEM and HVEM. Two kinds of precipitates induced by the fast-neutron irradiation in the reactors have been identified, i.e., Zr/sub 3/O and cubic-ZrO/sub 2/ particles approximately 2 to 10 nm in size. By means of a weak-beam dark-field ''2-1/2D-microscopy'' technique, the bulk nature of the precipitates and the surficial nature of artifact oxide and hydride phases could be discerned. The Zr(Fe/sub x/,Cr/sub 1-x/)/sub 2/ and Zr/sub 2/(Fe/sub x/,Ni/sub 1-x/) intermetallic precipitates normally present in the as-fabricated material virtually dissolved in the spent-fuel cladding specimens after a fast-neutron fluence of approx.4 x 10/sup 21/ ncm/sup -2/ in the power reactors. The observed radiation-induced phase transformations are compared with predictions based on the currently available understanding of the alloy characteristics. 29 refs.
  • Physical Description: Pages: 38


  • Keyword: Bwr Type Reactors
  • Keyword: Alloys
  • STI Subject Categories: 210200 -- Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled
  • Keyword: Zirconium Base Alloys 360106* -- Metals & Alloys-- Radiation Effects
  • STI Subject Categories: 210100 -- Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled
  • Keyword: Phase Transformations
  • Keyword: Baryons
  • STI Subject Categories: 21 Specific Nuclear Reactors And Associated Plants
  • Keyword: Tin Alloys
  • Keyword: Crystal Structure
  • Keyword: Water Cooled Reactors
  • Keyword: Physical Radiation Effects
  • Keyword: Radiation Effects
  • Keyword: Hadrons
  • Keyword: Nucleons
  • Keyword: Reactors
  • Keyword: Irradiation
  • Keyword: Water Moderated Reactors
  • Keyword: Zirconium Alloys
  • Keyword: Elementary Particles
  • Keyword: Zircaloy
  • Keyword: Neutrons
  • Keyword: Microstructure
  • Keyword: Fuel Cans
  • Keyword: Pwr Type Reactors
  • STI Subject Categories: 36 Materials Science
  • Keyword: Fermions


  • Conference: 13. international symposium on the effects of radiation on materials, Seattle, WA, USA, 23 Jun 1986


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Other: TI86014487
  • Report No.: CONF-860605-20
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5462312
  • Archival Resource Key: ark:/67531/metadc1094084


  • Display Note: NTIS, PC A02/MF A01 - GPO.