Elastic Properties of Fe–C and Fe–N Martensites

@article{Souissi2015ElasticPO,
  title={Elastic Properties of Fe–C and Fe–N Martensites},
  author={Maaouia Souissi and H. Numakura},
  journal={Isij International},
  year={2015},
  volume={55},
  pages={1512-1521}
}
Single crystal elastic constants of bcc iron and bct FeC and FeN alloys, martensites, have been evaluated by ab initio calculations based on the density functional theory. The energy of a strained crystal has been computed using the supercell method at several values of the strain intensity, and the stiffness coefficient has been determined from the slope of the energy versus square of strain relation. Some of the third order elastic constants have also been evaluated. The absolute magnitudes… 
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