Coexistence pressure for a martensitic transformation from theory and experiment: Revisiting the bcc-hcp transition of iron under pressure
@article{Zarkevich2014CoexistencePF, title={Coexistence pressure for a martensitic transformation from theory and experiment: Revisiting the bcc-hcp transition of iron under pressure}, author={Nikolai A. Zarkevich and Duane D. Johnson}, journal={Physical Review B}, year={2014}, volume={91}, pages={174104} }
The coexistence pressure of two phases is a well-defined point at fixed temperature. In experiment, however, due to nonhydrostatic stresses and a stress-dependent potential energy barrier, different measurements yield different ranges of pressure with a hysteresis. Accounting for these effects, we propose an inequality for comparison of the theoretical value to a plurality of measured intervals. We revisit decades of pressure experiments on the $\text{bcc}\ensuremath{\leftrightarrow}\text{hcp…
27 Citations
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