Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499674 | Scripta Materialia | 2012 | 4 Pages |
Abstract
Bulk nanostructured materials exhibit high strength but very low ductility. In this study, ductile nanostructured iron-base alloys are successfully developed using a combination of three strategies: appropriate choice of chemical compositions for lattice softening, severe plastic deformation using high-pressure torsion for grain refinement, and annealing for nanotwin formation. Accordingly, exceptional performance of both ultrahigh strength, 2.3–3 GPa, and high elongation to failure, 10–20%, which has never been reported for metallic materials, is achieved.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Kaveh Edalati, Shoichi Toh, Tadahiko Furuta, Shigeru Kuramoto, Masashi Watanabe, Zenji Horita,