FIELD: metallurgy.
SUBSTANCE: invention relates to a method for manufacturing items from a metastable austenitic, in the initial state, light structural steel by plastic deformation of metal sheet, blank sheet or pipe in one or more phases having temperature-dependent TRIP effects (transformation induced plasticity) and TWIP (twinning induced plasticity) during plastic deformation. Deformation is carried out with TRIP/TWIP effect preventing temperature above room temperature, from 40 to 160°C and to achieve particularly high strength items- with intensifying TRIP/TWIP effect temperature below room temperature, from -65 to 0°C.
EFFECT: achieving particularly high viscosity items.
8 cl, 1 dwg
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