Reconstitution Process by Stud Welding for the Surveillance Program in Mexico

    Volume 35, Issue 5 (September 2007)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 11 June 2007

    Page Count: 9


    Romero, Jesús
    National Institute for Nuclear Research, Carretera México-Toluca, DF

    Hernández, Rogelio
    National Institute for Nuclear Research, Carretera México-Toluca, DF

    Fernández, Filiberto
    National Institute for Nuclear Research, Carretera México-Toluca, DF

    Mercado, Fortino
    National Institute for Nuclear Research, Carretera México-Toluca, DF

    van Walle, Eric
    Professor, Belgian Nuclear Research Centre SCK CEN, Belgium, Boeretang 200,

    (Received 6 July 2006; accepted 17 April 2007)

    Abstract

    This paper describes the development of the stud welding process for reconstitution of Charpy specimens for the surveillance program at the Mexican nuclear power plants. The surveillance program objective is to evaluate in advance the degree of embrittlement of the vessel over its service life. However, the number of capsules with test specimens was only foreseen for the plant’s design lifetime, and, at present, nuclear power plants can take measures that extend their lifetime by up to 20 additional years; hence the importance of this test material, which stores specific information on accumulated damage due to irradiation. This material needs to be reused after being destructively tested and, hence, there is the need to develop a reconstitution process to obtain other reconstructed Charpy specimens. These will be reinserted into the reactor both for the surveillance program and potential plant life extension.


    Paper ID: JTE100721

    DOI: 10.1520/JTE100721

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    Author
    Title Reconstitution Process by Stud Welding for the Surveillance Program in Mexico
    Symposium , 0000-00-00
    Committee C26