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    Effects of Heat Treatments on the Tensile and Corrosion Properties of Zircaloy 2

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    The effects of temperature, time at temperature, and cooling rate on the tensile and corrosion properties of Zircaloy 2 were studied. It was found that both tensile and corrosion properties were dependent upon cooling rate and when discussing the other variables, a cooling rate must be specified. In general, above 1700 F the yield strength increased and the ultimate strength decreased. Ductility decreased with increasing heat treatment temperature above 1450 F. Cooling Zircaloy 2 at a rate greater than 90 F per min resulted in satisfactory corrosion resistance, whereas cooling at a rate less than that caused decreased corrosion resistance. Corrosion resistance of slowly cooled material decreased with increasing temperature above 1500 F.

    Author Information:

    Goodwin, J. G.
    Bettis Plant, Pittsburgh, Pa.

    Rubenstein, L. S.
    Bettis Plant, Pittsburgh, Pa.

    Shubert, F. L.
    Bettis Plant, Pittsburgh, Pa.

    Committee/Subcommittee: B02.10

    DOI: 10.1520/STP46334S