Issue |
J. Phys. IV France
Volume 110, September 2003
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Page(s) | 165 - 169 | |
DOI | https://doi.org/10.1051/jp4:20020688 |
J. Phys. IV France 110 (2003) 165
DOI: 10.1051/jp4:20020688
Structure of metal materials under bulk doping
S. Gubenko1, S. Usherenko2, V. Sitalo3 and Yu. Bunchuk31 Yuzhnoye State Design Office, Dnepropetrovsk, Ukraine
2 Institute of Pulse Processes, Minsk, Byelorussia
3 National Metallurgical Academy of Ukraine, St. John's College, Oxford, U.K.
Abstract
The method of bulk doping of metallic materials is effected by super deep penetration of dispersed particles as a consequence
of dynamic interaction with a barrier. Such a treatment has considerable potential, since it increases the number of physic-mechanical
and service properties of metals and alloys. The mechanism underlying the interaction of solid dispersed particles with a
metal matrix has been investigated by several authors. However, the problem of structural changes taking place in the matrix
near particles and the trajectories of their motion has yet to be adequately studied. It would provide the possibility of
understanding the mechanism of mass transfer of particles into metals with different compositions and structures. The process
of hardening of the materials with different types of crystalline lattices by mean of explosive doping is considered as multifaceted.
The similarities of, and the differences between, the mechanisms underlying the hardening of materials having body-centered
(bcc) and face-centered cubic (fee) lattices are discussed. The role of long - range stress-fields in the formation of dislocation
structure of metals subjected to explosive doping has been investigated. The intricate nature of the spatial configuration
of stress fields near retarded particles and the role of these fields in hardening the treated metallic materials has been
demonstrated.
© EDP Sciences 2003