STP1058: Wide-Plate Testing of Weldments: Part III—Heat-Affected Zone Wide-Plate Studies

    Denys, RM
    Professor and manager, Laboratorium Soete Rijksuniversiteit Gent, Gent,

    Pages: 25    Published: Jan 1990


    Abstract

    This paper, Part III in this series on wide-plate testing of weldments, reviews the latest developments in wide-plate test procedures used for evaluation of the heat-affected zone (HAZ) toughness in steel weldments. In particular, emphasis is placed on the transversely loaded wide-plate test specimen in which the orientation of both the crack and the weld is transverse to the loading direction. This wide-plate test configuration is often conducted to evaluate the structural significance of low HAZ CTOD values. To this end, fatigue-precracked surface-notched wide-plate specimen tests are employed to assess this specific local brittle zone (LBZ) problem. The need for sectioning the wide-plate specimen after testing to identify whether the intended microstructures have been sampled is discussed, and examples are given to illustrate the type of information which is currently produced.

    Keywords:

    weldments, wide-plate testing, heat-affected zone (HAZ), crack-tip opening displacement (CTOD), brittle fracture, cracks, toughness requirements, high-strength steels, local brittle zones, coarse-grain microstructure


    Paper ID: STP24098S

    Committee/Subcommittee: E08.93

    DOI: 10.1520/STP24098S


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