STP1329

    Small Specimen Testing Applied at Surveillance Extension

    Published: Jan 1998


      Format Pages Price  
    PDF Version (208K) 10 $25   ADD TO CART
    Complete Source PDF (12M) 10 $162   ADD TO CART


    Abstract

    The WWER-440 V-213 type RPVs are equipped with the surveillance specimens used to predict the embrittlement of the RPV material. These specimens are located near the core, resulting in accelerated irradiation. After four years of operation only one overexposed set remains in each unit. To obtain a more extensive database for life time calculation and life time management, a new, more extended surveillance program has been elaborated and implemented. Due to the limited availability of archive materials reconstructed Charpy V specimens and small size smooth and notched tensile bars were used in the program. To develop this surveillance extension, an extensive laboratory study on use of reconstructed Charpy and subsize tensile specimens was performed. Methods for K1a measurements on small size specimens were also studied.

    Keywords:

    Small specimen, reconstituted specimens, surveillance testing, crack arrest, fracture toughness, electron beam welding


    Author Information:

    Czoboly, E
    Senior Researcher, Atomic Energy Research Institute,

    Gillemot, F
    Senior Researcher, Atomic Energy Research Institute,

    Oszwald, F
    Head of Testing Lab. Nuclear Power Plant Paks, Paks,


    Paper ID: STP37990S

    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP37990S


    CrossRef ASTM International is a member of CrossRef.