| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499309 | Scripta Materialia | 2012 | 4 Pages |
Abstract
We demonstrate that a Nb-microalloyed ultra-thin cast strip steel can be strengthened substantially without compromising ductility by performing a simple heat treatment at 700 °C for 4 min. The strengthening was attributed to a fine dispersion of Nb-rich solute atom clusters. These clusters had an average size of ∼60 atoms at peak hardness and resembled Guinier–Preston zones in Al–Cu alloys. The application of the Ashby–Orowan equation indicates that these clusters are potent strengthening agents when compared to conventional Nb(C,N) precipitation strengthening.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Kelvin Y. Xie, Tianxiao Zheng, Julie M. Cairney, Harold Kaul, James G. Williams, Frank J. Barbaro, Chris R. Killmore, Simon P. Ringer,