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.
Carnegie Mellon UniversityWean Hall 4323
5000 Forbes Avenue
Pittsburgh, PA USA 15213-3890
Ship Structure CommitteeNational Academy of Science, 2101 Constitution Avenue, NW
Washington, DC USA 20418
- Cox Jr, J J
- Horne, G T
- Mehl, R F
- Publication Date: 1953-5-15
- Features: References;
- Pagination: 45 p.
- TRT Terms: Cleavage fracture; Fracture mechanics; Metallography; Tension tests
- Identifier Terms: Ship Structure Committee
- Old TRIS Terms: Tensile test
- Subject Areas: Marine Transportation; Materials;
- 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