STP570

    Effect of Impurity Concentration on the Change in Fracture Toughness of AISI Type 403 Stainless Steel with Fast Neutron Radiation

    Published: Jan 1975


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    Abstract

    We have measured the changes in fracture toughness (KIC) and Charpy V-notch characteristics of low impurity and high impurity heats of AISI Type 403 stainless steel with neutron radiation at 575 K. The change in 50 percent shearfracture temperature was agood approximation to the temperature change in the curve of fracture toughness versus temperature.

    Arguments are presented for simulating the elastic fracture characteristics of irradiated ferritic steels by lowering the test temperature of unirradiated components. For air-melted AISI Type 403 stainless steel, this temperature difference varied from 35 to 95 K.

    Keywords:

    radiation, fracture toughness, neutron sources, radiation damage, mechanical properties, chemical composition, martensitic stainless steels, nuclear reactor materials, impurities, copper, tempering, radiation damage simulation


    Author Information:

    Hosbons, RR
    Research metallurgist and research technologist, Atomic Energy of Canada, Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario

    Pacey, AJ
    Graduate student, University of Waterloo, Waterloo, Ontario

    Wotton, BL
    Research metallurgist and research technologist, Atomic Energy of Canada, Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario


    Paper ID: STP33681S

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP33681S


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