WORK HARDENING OF PLASTICALLY NON-HOMOGENEOUS CRYSTALS.
Abstract
When a non-homogeneous crystal (a crystal which contains hard inclusions of a second phase, for example) deforms plastically, dislocations whose function is to ensure compatible deformation of the parts of the crystal accumulate in it. Unlike dislocations in homogeneous crystals, the density of these 'compatibility' or 'geometrically necessary' dislocations increases in direct proportion to the strain. These extra dislocations lead to extra work hardening in the non-homogeneous crystals. Although this is not the only way in which inclusions, for example, can stimulate work hardening, experiments suggest that it is the most important one. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1968
- Accession Number
- AD0664831
Entities
People
- M. F. Ashby
Organizations
- Harvard University