Using the method of equal-channel angular pressing (ECAP), submicrocrystalline structure is formed in lowcarbon Fe–Mn–V–Ti–C steel with the average grain size 260 nm in the ferrite-perlite state and 310 nm in the martensitic state. It is established that the ECAP treatment gives rise to improved mechanical properties (Hμ = 2.9 GPa, σ0 = 990 MPa in the ferrite-perlite and Hμ = 3.7 GPa, σ0 = 1125 MPa in martensitic states), decreased plasticity, and results in plastic flow localization under tensile loading. The high strength properties formed by the ECAP are shown to sustain up to the annealing temperature 500°C.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 23–28, April, 2011.
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Zakharova, G.G., Astafurova, E.G., Tukeeva, M.S. et al. Mechanical properties of ferrite-perlite and martensitic Fe–Mn–V–Ti–C steel processed by equal-channel angular pressing and high-temeperature annealing. Russ Phys J 54, 416–422 (2011). https://doi.org/10.1007/s11182-011-9633-0
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DOI: https://doi.org/10.1007/s11182-011-9633-0