Accession Number : AD0696358

Title :   THE FATIGUE STRENGTH OF BUTT-WELDED AND PLAIN SPECIMENS OF 18(250) MARAGING STEEL PLATE.

Descriptive Note : Mechanical engineering rept.,

Corporate Author : NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s) : Dunsby,J. A. ; Walker,A. C.

Report Date : MAY 1969

Pagination or Media Count : 45

Abstract : Fatigue tests in pulsating tension on samples of 18(250) maraging steel plate, both with and without central transverse butt welds, are reported. Tests are also described in which the weld bead was removed by grinding. The results obtained from the plain plate, which was tested as rolled and aged, were inferior to those reported by other investigators for specimens machined from bar stock. To investigate this discrepancy, plain plate specimens were also tested with the surfaces ground before aging and after aging. (Author)

Descriptors :   (*MARAGING STEELS, FATIGUE(MECHANICS)), (*WELDS, MARAGING STEELS), METAL PLATES, HEAT TREATMENT, FRACTURE(MECHANICS), AGING(MATERIALS), CANADA

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE