Technology Concepts for Producing Complex Composite Modifiers by Rolling Powder Mixtures.
II. Compacting Conditions, Structure, and Properties of Two-Component Model Systems Fе–FeSi and Al–FeSi

Abstract

The optimization of compacting processes for two-component model systems consisting of brittle and plastic components is discussed. Fe–FeSi and Al–FeSi compositions with different volume content of the plastic component are tested. The compaction is conducted by pressing with different compacting force. Mechanical properties of cylindrical compacts are determined by axial compression test and the Brazilian test. It is established that the content of brittle component must be ≤60% and the compaction force must be ≥400 MPa. With increasing compaction force, the strength of the compacts increases significantly. It is established that the application of both iron and aluminum as binder is acceptable. However, iron and aluminum compositions are the best for low and high content of the brittle component, respectively.