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Extreme elastic anisotropy of cementite, Fe3C: First-principles calculations and experimental evidence
- Source :
-
Scripta Materialia . Oct2008, Vol. 59 Issue 8, p814-817. 4p. - Publication Year :
- 2008
-
Abstract
- First-principles results for the full set of elastic constants (stiffnesses) c ij of cementite, Fe3C, revealed an extreme elastic anisotropy with a very small c 44 amounting to only about 1/10 of c 55 and c 66. Synchrotron X-ray diffraction stress measurements were performed on Fe3C layers grown on α-Fe exhibiting a planar state of compressive residual stress. These data exhibit a characteristic hkl-dependence of the stress-induced reflection shifts, and provide experimental proof for the extreme elastic anisotropy of Fe3C. [Copyright &y& Elsevier]
- Subjects :
- *CEMENTITE
*ANISOTROPY
*ELASTICITY
*SYNCHROTRONS
Subjects
Details
- Language :
- English
- ISSN :
- 13596462
- Volume :
- 59
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Scripta Materialia
- Publication Type :
- Academic Journal
- Accession number :
- 33775491
- Full Text :
- https://doi.org/10.1016/j.scriptamat.2008.06.015