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An ultrafine-grained low carbon steel (Fe–0.15wt.% C–0.52wt.% Mn) was fabricated by equal channel angular pressing (ECAP) at room temperature by pressing for up to a maximum of 10 passes using route C. There was an elongated substructure with a width of ∼0.2–0.3μm after 10 passes of ECAP and the corresponding tensile strength was >1200MPa. It is shown that subsequent annealing for 1h at 773K, which...
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