MECHANICAL PROPERTIES OF HIGH PURITY FE-C ALLOYS AT LOW TEMPERATURES

The mechanical properties of high-purity iron-carbon alloys, 0.003 to 0.49% carbon, at low temperatures were investigated. Results obtained indicate that the binary ferrites do not differ qualitatively from commercial ferritic steels in low-temperature behavior, assuming that in both cases oxygen contents are sufficiently low for fractures to be transcrystalline rather than intercrystalline. The study indicates that the exponent of strain hardening appears to be more significant in defining low-temperature brittleness than the slope of the uncorrected stress-strain curve. An hypothesis is also extended that while carbides initiate cracks, they also interfere with crack propagation and thus reduce the abrupt change from ductile to brittle behavior upon a decrease of temperature.

  • Corporate Authors:

    University of Pennsylvania Law School

    3400 Chestnut Street
    Philadelphia, PA  USA  19104

    Ship Structure Committee

    National Academy of Science, 2101 Constitution Avenue, NW
    Washington, DC  USA  20418
  • Authors:
    • Brick, R M
  • Publication Date: 1959-3-31

Media Info

  • Features: References;
  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331296
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Report/Paper Numbers: SSC- 94 Final Rpt.
  • Contract Numbers: NObs-50062, NObs-72046
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM