Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501475 | Scripta Materialia | 2008 | 4 Pages |
Abstract
Nanocrystalline iron synthesized by mechanical alloying and spark plasma sintering exhibited high yield and ultimate compressive strengths of 2.59 and 3.08 GPa, respectively, with a total true strain of 0.05. Partial recrystallization led to a true strain of 0.4 with a lower strength of 2.25 GPa. A bimodal grain size distribution consisting of average fine grains of 2.5 μm and nanograins of 85 nm is attributed to the combined high strength and large plastic strain.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
B. Srinivasarao, K. Oh-ishi, T. Ohkubo, T. Mukai, K. Hono,