Using a mathematical model of plastic deformation of dispersion-hardened materials, the effect of the scale characteristics of the hardening phase with an L12 superstructure on the temperature dependence of the flow stress and evolution of the dislocation subsystem of heterophase alloys with the fcc matrix is studied. It is found that in materials with a nanoscale hardening phase, more intensive strain hardening and more severe temperature anomaly of mechanical properties is observed, than in materials containing larger particles at the same volume fraction of the hardening phase.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 52–57, March, 2015.
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Kovalevskaya, Т.А., Daneyko, O.I., Kulaeva, N.А. et al. Plastic Behavior of Heterophase Alloys with a Fcc Matrix Hardened by Particles with an L12 Superstructure. Russ Phys J 58, 343–348 (2015). https://doi.org/10.1007/s11182-015-0504-y
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DOI: https://doi.org/10.1007/s11182-015-0504-y