DISLOCATION MOBILITY IN ZINC SINGLE CRYSTALS
Abstract
Results of a study of disloc tion mobility in ig purity zinc single crystals are presented. Dislocation positions were determined using a special etching technique, and the dislocation den ity and configuration were determined before and aft r static loading and s re pulse loading. Loading at stress levels slightly below he flow str produce local disloc ion r arra gem nt, with the maximum dislocation displ ce nt somew at less than the sub-boundary spacing. At the flow stres disloc tions penetrate the sub-boundaries and relatively large disloc tion displacements ar i dicated (comparable to the specimen dimensions) in stress pulse tes s of ppro imately 30 sec duration. Short duration stress pulse loading at a stres lev l approximately 70 times the flow stress produced a maximum dislocation veloci y of approxim ely 6 per cent of the shear wave velocity. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0293445
Entities
People
- K.h. Adams
- T. Jr. Vreeland
Organizations
- University of Innsbruck