Abstract
An experimental study was made of the structure of deformed porous iron with a porosity P ranging from 4 to 40% within the range of strains ε up to fracture. Measurements are made of grain-boundary slip and rotations of structural elements and their individual contributions to the total strain as a function of P and ε. It is established that there is a change in the dominant mechanisms of plastic deformation with an increase in porosity, this change being connected with a change in the topological characteristics of the system and corresponding to the transition from intergranular slip to a group of mechanisms that ensures movement of the grains as a whole. The established laws are analyzed on the basis of the concept of structural levels of deformation.
Original language | English |
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Pages (from-to) | 92-96 |
Number of pages | 5 |
Journal | Russian Physics Journal |
Volume | 39 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 1996 |
ASJC Scopus subject areas
- Physics and Astronomy(all)