Abstract
Nanocrystalline Fe-23 at%Al-6 at%C alloy powder was produced by mechanical alloying of the mixture of iron powder and aluminum powder (Fe-25 at%Al) with methanol, and was consolidated into fully dense compact by spark plasma sintering (SPS) at 1273 K. The compacts have nanocrystalline microstructure composed of mixture of α-phase grains and κ-carbide (Fe 3AlC) grains whose average grain size is about 50 nm. Although relatively large grains were also observed in places, their sizes were not over a few micrometers. The mechanisms of the densification and the structural evolution during the SPS process are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1604-1612 |
| Number of pages | 9 |
| Journal | Materials Transactions |
| Volume | 44 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2003 Aug |
Keywords
- Aluminum
- Carbide
- FeAl
- Iron
- Mechanical alloying
- Nanocrystal
- Spark plasma sintering
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Koizumi, Y., Tanaka, T., Minamino, Y., Tsuji, N., Mizuuchi, K., & Ohkanda, Y. (2003). Densification and Structural Evolution in Spark Plasma Sintering Process of Mechanically Alloyed Nanocrystalline Fe-23Al-6C Powder. Materials Transactions, 44(8), 1604-1612. https://doi.org/10.2320/matertrans.44.1604