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
    STP1325

    Changes in Electromagnetic Properties of a Low-Alloy Steel Caused by Neutron Irradiation

    Published: 01 January 1999


      Format Pages Price  
    PDF (236K) 12 $25   ADD TO CART
    Complete Source PDF (24M) 1120 $164   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

    In order to develop a method for the nondestructive evaluation of material deterioration in nuclear pressure vessels, changes in the electromagnetic properties of the low-alloy steel A533B, Class. 1 and its weld metal caused by neutron irradiation up to ∼3x1023 n/m2 of neutron fluence at 561K were measured. Electrical resistance, coercivity and Barkhausen noise were selected as the electromagnetic properties to measure. It was found that decreases of several % in the readings of electrical resistance and coercivity, and an increase of several % in the Barkhausen noise occurred due to neutron irradiation. Good correlations between the changes in the electromagnetic properties and those in the mechanical properties were confirmed. Furthermore, an equation using the results of the three tests was found to estimate well the transition temperature and yield strength. From this, the authors conclude that the electromagnetic tests have potential as methods for nondestructive evaluation of material deterioration in the reactor vessels of nuclear power plants.

    Keywords:

    Nondestructive evaluation, Neutron irradiation, Nuclear pressure vessel, Eectrical resistance, Coercivity, Barkhausen noise, Mechanical properties


    Author Information:

    Goto, T
    Professor, Fukui University of Technology, Fukui-city,

    Kamimura, T
    Electronic. Applications Lab., Takasago Research & Development Center Mitsubishi Heavy Ind. Ltd., Hyogo.,

    Kumano, S
    Electronic. Applications Lab., Takasago Research & Development Center Mitsubishi Heavy Ind. Ltd., Hyogo.,

    Takeuchi, I
    Electronic. Applications Lab., Takasago Research & Development Center Mitsubishi Heavy Ind. Ltd., Hyogo.,

    Maeda, N
    Professor, University of Tokyo, School of Engineering, Tokyo.,

    Yamaguchi, A
    Tsurumi Research and Development Center, Japan Power Engineering and Inspection Corporation, Yokohama,


    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP13890S