THE EFFECT OF HIGH STRAIN RATES ON THE FLOW STRESS AND DEFECT STRUCTURE OF METALS.
Abstract
The objective of this program has been to elucidate the fundamental mechanisms of high-rate plastic deformation of metals. Single crystal specimens of an fcc metal (Cu) and a bcc metal (Nb) were deformed; the macroscopic yielding behavior was noted for each material as a function of strain rate, and the structures of the deformed crystals were studied by metallographic techniques. In addition to the single-crystal work, a study was made of the character of slip bands in polycrystalline iron and a mild steel as a function of temperature. This permitted comparisons to be made between the behavior of different bcc metals. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 1969
- Accession Number
- AD0690575
Entities
People
- A. R. Rosenfield
- G. T. Hahn
- J. D. Boyd
Organizations
- Battelle Memorial Institute