You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.


    Localized Ductility Method for Evaluating Zircaloy-2 Cladding


      Format Pages Price  
    PDF (364K) 16 $25   ADD TO CART
    Complete Source PDF (11M) 619 $192   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    The localized ductility method has been shown to be a useful laboratory method for evaluating the mechanical performance of fuel cladding under conditions that approximate that of pellet-clad interaction (PCI). Using the method on unirradiated annealed and cold-worked cladding, performance is determined in flowing gaseous iodine and cesium plus cadmium liquid metal. In the case of iodine, increasing temperature and decreasing strain rate enhance the embrittlement, as does a texture in which the basal pole is in the direction of the applied stress. Further, microcracking is not found to occur below a finite plastic strain. The behavior is consistent with a film rupture mechanism for chemical-assisted cracking. For cesium plus cadmium, cracking is found in Zircaloy-2 above a threshold level of stress as indicated by the performance of constant crosshead and predefected constant load tests.


    zirconium, Zircaloy-2, Zircaloy cladding, stress corrosion, liquid, metal embrittlement, mechanical testing

    Author Information:

    Coffin, LF
    Mechanical engineer, Corporate Research and Development, General Electric Co., Schenectady, New York

    Committee/Subcommittee: B10.02

    DOI: 10.1520/STP36673S