Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501005 | Scripta Materialia | 2008 | 4 Pages |
Abstract
Nanocrystalline Fe–Zr alloys with a nominal grain size of 10 nm were synthesized by mechanical alloying. The grain size in pure Fe was >200 nm after annealing for 1 h at T/TM = 0.5. Additions of 1 at.% Zr stabilized the grain size at 50 nm up to T/TM = 0.92. Particle pinning, solute drag and reduction in grain-boundary energy have been proposed as stabilization mechanisms. The stabilization in Fe–Zr alloys is attributed to a reduction in grain-boundary energy due to Zr segregation.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Kris A. Darling, Ryan N. Chan, Patrick Z. Wong, Jonathan E. Semones, Ronald O. Scattergood, Carl C. Koch,