METHOD OF PRODUCING HIGH-STRENGTH ROLLED PRODUCT OF AUSTENITE STAINLESS STEEL WITH NANOSTRUCTURE

摘要

FIELD: metallurgy.;SUBSTANCE: invention relates to metallurgy, particularly, to metal forming, specifically to production of high-strength rolled product of austenite stainless steel with a nanocrystalline structure, which can be used as structural material. Method of making rolled product comprises hot forging at 1,373 K to true straining ε=0.5 with subsequent cooling in water, obtained semi-products undergo warm rolling into a sheet to true straining ε=3 at 473–673 K, which prevents martensitic transformation.;EFFECT: technical result consists in production of rolled product of austenite stainless steel with nanocrystalline structure and improved strength properties, yield strength is more than 1,000 MPa.;1 cl, 2 dwg, 1 tbl