ON THE NATURE OF STRAIN HARDENING IN FACE-CENTERED-CUBIC METALS
Abstract
The low temperature tensile and creep behaviors of single crystals of Cu were evaluated and analyzed in such a manner as to provide an estimate of the separate contributions of short and long range stress fields to strain-hardening. Furthermore, the average force-displacement diagram for thermally activated intersection of two dislocations was established. This diagram plus a knowledge of the variation of dislocation spacing and the long-range back stresses with strain permits an accurate prediction of creep rates. The calculated activation energy for intersection under conditions of a constant strain rate increases linearly with the absolute temperature as required by theory. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 04, 1961
- Accession Number
- AD0258633
Entities
People
- J.e. Dorn
- P.w. Osborne
- S.k. Mitra
Organizations
- Materials Research Laboratory