USE OF ULTRASOUND IN ASSESSING THE SUSCEPTABILITY OF STEEL TO LAMELLAR TEARING

To assess the susceptibility to lamellar tearing of heavy mild-steel plating forming part of welded structures, many destructive tests have been proposed, most of which entail measurements of the reduction in area of tensile-test specimens cut from the plate in the thickness direction. The work described in this paper was undertaken to investigate the possiblity of replacing these destructive tests by non-destructive tests based on the use of longitudinal-wave transmission ultasonics. The results obtained from tests on 17 heats of Fe52D C/Mn steel indicated that ultrasonic attenuation and velocity measurements, together with inclusion counting, show promise; however, further work is necessary to develop the technique for industrial application. Two parameters, which can be calculated from the test results, are defined; from them the reduction of area in a tensile specimen was predicted by statistical calculation and agreed well with the measured value in the tests.

  • Corporate Authors:

    IPC Business Press Limited

    205 East 42nd Street
    New York, NY  USA  10017
  • Authors:
    • Tamburelli, C
  • Publication Date: 1977-2

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Filing Info

  • Accession Number: 00165254
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Nov 23 1977 12:00AM