COMPARISON OF A BROWNIAN-MOTION RATE THEORY WITH DISLOCATION DAMPING DATA FOR LEAD

Authors
ISAAC RD GRANATO AV
Citation
Rd. Isaac et Av. Granato, COMPARISON OF A BROWNIAN-MOTION RATE THEORY WITH DISLOCATION DAMPING DATA FOR LEAD, Zeitschrift fur Metallkunde, 87(6), 1996, pp. 434-438
Citations number
19
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
Zeitschrift fur Metallkunde → ACNP
ISSN journal
00443093
Volume
87
Issue
6
Year of publication
1996
Pages
434 - 438
Database
ISI
SICI code
0044-3093(1996)87:6<434:COABRT>2.0.ZU;2-U
Abstract
A Brownian motion rate theory of dislocation motion taking account of viscous and inertial effects is applied to internal friction measureme nts. Results for superconducting Pb are used to determine the distribu tion of the breakaway stress of dislocations. The parameters found by analysis of the internal friction data, including the electronic dampi ng coefficient, are those needed to account as well for the enhanced p lasticity as for the anomalous flow stress temperature dependence of d ilute alloys.