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

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass

    Flow Localization Processes in Austenitic Alloys

    Published: 01 January 2006

      Format Pages Price  
    PDF (1.1M) 14 $25   ADD TO CART
    Complete Source PDF (17M) 406 $98   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


    Austenitic alloys are widely used for structural component applications in high irradiation environments. In general, they are more resistant to embrittlement than other classes of structural alloys, particularly at ambient and intermediate temperatures. Nevertheless, this class of materials suffers from highly localized flow when irradiated to moderate dose (∼ 1 to 5 dpa) at temperatures between 150 and 400°C. The loss of ductility is normally exhibited by very low values of uniform elongation in tensile tests. The processes that lead to plastic instability are examined here for several face centered cubic materials and alloys. It is found that there is a critical stress level at which necking initiates. This critical stress level is not influenced by irradiation exposure. However, irradiation exposure, which increases material yield strength, does result in proportional reductions in uniform elongation. Most of the materials examined here exhibit a bilinear strain hardening behavior. This leads to direct correlation between the material yield strength and the uniform elongation.


    tensile test, uniform elongation, flow localization, austenitic alloys

    Author Information:

    Wu, X

    Pan, X
    Graduate Student, University of Illinois at Urbana-Champaign, Urbana, IL

    Li, M
    Post Doctoral Student, Oak Ridge National Laboratory, Oak Ridge, TN

    Stubbins, JF
    Professor and Head, University of Illinois at Urbana-Champaign, Urbana, IL

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP37588S