METHOD FOR OBTAINING PLATE ARTICLES FROM NICKEL HEAT-RESISTANT ALLOYS Russian patent published in 2012 - IPC C22F1/10 

FIELD: metallurgy.

SUBSTANCE: method for obtaining plate articles from nickel heat-resistant alloys is proposed. Method involves casting of an ingot, deformation treatment of ingot, hot pre-rolling and final rolling, and forming of plate articles. Hot pre-rolling is carried out with deformation degree of not less than 70% and deformation speed of 1-5 sec^-1 at T_rollγ'+30÷100°C, final rolling is performed in cold state with deformation degree of 5-20% per pass, with total deformation degree of 20-80%; after hot pre-rolling and final cold rolling there carried out is heat treatment at T_rollγ'+30÷80°C and exposure during 15-60 minutes with next quick cooling, and formation of plate articles is performed by cold forming.

EFFECT: forming of optimum structural condition with high technological ductility at hot and cold rolling operations of plates, high forming coefficients, high level of plate articles performance and reduction of labour intensity of their production.

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