CRITICAL STRESS FOR SLIP, TWINNING, AND CLEAVAGE IN SINGLE CRYSTALS OF IRON

The objectives of this investigation reported herein are as follows: (1) To produce a ferrite of nominal purity from SAE 1008 steel; (2) To grow single crystals of this material of a size suitable for subsequent tension tests; (3) To find the critical resolved shear stresses for slip and twinning insofar as they can be determined as a function of temperature; (4) To determine whether a transition from slip to twinning occurs with reproducibility of results and whether a criterion for the onset of twinning can be established; (5) To study the fracture properties of single crystals as a function of temperature, strain, aging, and prestrain. (6) To investigate the atomic nature of slip in iron by methods of higher resolving power, e.g., a. The electron microscope. b. Multiple beam interferometry and (7) To correlate the above in a general theory of deformation for lambda-iron.

  • Corporate Authors:

    Carnegie Mellon University

    Wean Hall 4323
    5000 Forbes Avenue
    Pittsburgh, PA  United States  15213-3890

    Ship Structure Committee

    National Academy of Science, 2101 Constitution Avenue, NW
    Washington, DC  United States  20418
  • Authors:
    • Cox Jr, J J
    • Horne, G T
    • Mehl, R F
  • Publication Date: 1953-5-15

Media Info

  • Features: References;
  • Pagination: 45 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331003
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Report/Paper Numbers: SSC- 59 Prog Rpt.
  • Contract Numbers: NObs-50230
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM