Abstract
The results of studying of the effect of additions on nanodispersed iron powder (Fe-NP) obtained by the electrical explosion method on the formation and sintering of industrial coarse-grain iron powder are presented. The effect of amount of Fe-NP added to the charge material on compactibility and moldability of compacts, properties, microstructure, and phase composition of sintered material is analyzed. Electrically explosive Fe-NP is shown to be low-technologic. Charges based on the coarse-grained iron powder that contain up to 20% Fe-NP have good compactibility and moldability. It is established that introduction of Fe-NP into the charge causes activation of sintering and is favorable for obtaining the sintered samples with fine-grain crystalline structure and increased physicomechanical characteristics. The effect of amount of the Fe-NP addition to effective activation energy of sintering is evaluated.
Original language | English |
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Pages (from-to) | 513-517 |
Number of pages | 5 |
Journal | Russian Journal of Non-Ferrous Metals |
Volume | 50 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Oct 2009 |
Keywords
- Activated sintering
- Compaction
- Microsctructure
- Nanopowder
ASJC Scopus subject areas
- Mechanics of Materials
- Surfaces, Coatings and Films
- Metals and Alloys