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  United States  10017
• Authors:
  • Tamburelli, C
• Publication Date: 1977-2

Media Info

• Features: References;
• Pagination: 6 p.
• Serial:
  • Non-Destructive Testing International
  • Volume: 10
  • Publisher: IPC Business Press Limited

Subject/Index Terms

• TRT Terms: Mechanical tests; Steel plates; Tearing; Ultrasonic waves; Wave motion
• Uncontrolled Terms: Destructive testing
• Subject Areas: Marine Transportation; Materials;

Filing Info

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