THE RELATION OF MICROSTRUCTURE TO THE CHARPY IMPACT AND LOW-TEMPERATURE TENSILE PROPERTIES OF TWO SHIP STEELS
This report describes the influence of the microstructural features on the brittle behavior of two ship plates, one a semikilled steel (ABS Class B) and the other a rimming steel (project steel E). The ferrite-pearlite aggregates were varied systematically by means of annealing and normalizing treatments, and correlations were obtained between the brittle behavior and several accurately measured microstructural parameters. Part I is concerned with observations on polished specimens after deformation in tension and slow-bend tests at -195 deg C, as well as at room temperature, to assess the role of twinning and to study the morphology of slip and brittle fracture. Part II describes the quantitative influence of microstructural variables on the Charpy V-notch transition temperature. Part III reports on measurements of deformation prior to brittle fracture in tension specimens at -195 deg C and considers the effect of the microstructure on the tensile properties in the brittle range.
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Corporate Authors:
Massachusetts Institute of Technology
Department of Civil Engineering, 77 Massachusetts Avenue
Cambridge, MA United States 02139Ship Structure Committee
National Academy of Science, 2101 Constitution Avenue, NW
Washington, DC United States 20418 -
Authors:
- Owen, W S
- Whitmore, D H
- Sullivan, C P
- Averbach, B L
- Cohen, M
- Publication Date: 1956-6-18
Media Info
- Features: References;
- Pagination: 79 p.
Subject/Index Terms
- TRT Terms: Fracture mechanics; Plate bearing test; Tension tests; Transition point
- Identifier Terms: Ship Structure Committee
- Old TRIS Terms: Charpy tests; Tensile test
- Subject Areas: Marine Transportation; Materials;
Filing Info
- Accession Number: 00331713
- Record Type: Publication
- Source Agency: Ship Structure Committee
- Report/Paper Numbers: SSC-102 Prog Rpt.
- Contract Numbers: NObs-65918, NObs-72046
- Files: TRIS
- Created Date: May 21 1981 12:00AM