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Deformation-induced grain refinement in body-centered cubic Co–Fe alloys upon room temperature compression
- Source :
-
Materials Science & Engineering: A . Aug2010, Vol. 527 Issue 21/22, p5796-5800. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: Pronounced grain refinement to ultrafine or nanoscale size in initially coarse-grained Co–25Fe and Co–35Fe alloys has been achieved upon conventional compression at room temperature. Both Co–Fe alloys exhibit a large plasticity of more than 140% without fracture at room temperature, which is related to a multiscale-grained microstructure resulting from deformation-induced grain refinement. The grains refine with increasing deformation during compression. The microstructure features indicate that the possible mechanism for the strain-induced grain refinement under conventional compression is a consequence of the propagation and coalescence of dislocation cell structures with strain accumulation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 527
- Issue :
- 21/22
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 52306289
- Full Text :
- https://doi.org/10.1016/j.msea.2010.06.009