METHOD FOR DEFORMATION-HEAT TREATMENT OF BIMETALLIC MATERIAL Russian patent published in 2022 - IPC C21D8/02 B21B3/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, in particular to the deformation-heat treatment of metals, namely the production of layered structural metal materials. The method includes obtaining a sheet blank consisting of a base layer and a cladding layer of corrosion-resistant steel and rolling it. A two-layer billet is heated to a temperature of 650°C, after holding for 1 hour, the billet is subjected to tempforming in several passes with a reduction of 10% and heating to a tempering temperature to a final true degree of deformation of at least 1.5, after which the billet is cooled in air. High-strength low-alloy steel is used as the main layer.

EFFECT: invention provides the possibility of performing deformation-heat treatment, which makes it possible to exclude package rolling, as well as in obtaining a unique combination of mechanical, technological and operational properties in a bimetallic material for use in petrochemical products and high-speed transport operating under extreme operating conditions, including aggressive environments.

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