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

    STP683

    Fracture Toughness of Irradiated AISI 304 and 316L Stainless Steels

    Published: 0


      Format Pages Price  
    PDF (276K) 18 $25   ADD TO CART
    Complete Source PDF (12M) 675 $149   ADD TO CART

    Cite this document

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


    Abstract

    The fracture toughness of AISI 304 and 316L stainless steels and their welds irradiated to 7 × 1025 neutrons (n)/m2 (50 percent of this was at E > 0.1 MeV) was investigated on 10- and 20-mm-thick three-point bend specimens. Measurements of critical values of the J-integral, Jc, and the crack-opening displacement, δc, defined at the onset of stable crack growth, were performed at 20 and 400°C. The electric potential method was adapted to hot-cell operation for the detection of the initiation point. Drastic reductions of fracture toughness occur when combining welding, irradiation, and high temperature. As an example, the value δc = 0.51 mm of base-material nonirradiated specimens tested at 20°C drops to 0.011 mm for welded irradiated specimens tested at 400°C. The consequences on liquid metal fast breeder reactor (LMFBR) structural design are illustrated in the case of the French LMFBR Super Phénix.

    Keywords:

    austenitic stainless steel, irradiation, weld, fracture toughness, structural design, fast breeder reactor


    Author Information:

    Dufresne, J
    Senior scientist, Commissariat à l'Energie Atomique, Fontenay-Aux-Roses,

    Henry, B
    Senior scientist and head, Commission of the European Communities, Joint Research Centre, Ispra Establishment, Ispra,

    Larsson, H
    Senior scientist and head, Commission of the European Communities, Joint Research Centre, Ispra Establishment, Ispra,


    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP38185S