Estimation of the Yield Strength of Metals from Crystal Defect Energies
Abstract
It has been found that the yield strength of a number of metals may be estimated by considering the contributions of various crystal defects to the strain energy per unit volume of a metal. It was found that for the metals in this study, the main contributions to the strain energy came from dislocations and grain boundaries. For high purity, well annealed metals, the contributions of solute atoms, self-interstitials, annealing twin boundaries and stacking faults are negligible. The calculations of the strain energy per unit volume at yield from crystal defect energies show good correlation to experimental data for high purity metals available in the open literature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 27, 1988
- Accession Number
- ADA200380
Entities
People
- Daniel P. Harvey Ii
- Mitchell I. Jolles
Organizations
- United States Naval Research Laboratory