WPAT, P.C., Intellectual Property Attorneys
Method for manufacturing high-strength and high-ductility steel
A method for manufacturing a high-strength and high-ductility steel includes steps in which an alloy steel is provided. The method continues with step in which the alloy steel is hot rolled, so that the microstructure of the alloy steel includes austenite, bainite and martensite. The method continues with step in which the hot-rolled alloy steel is annealed, so as to decompose bainite and martensite structures of the alloy steel into ferrite and austenite structures. The method continues with step in which the annealed alloy steel is cold rolled. The method continues with step in which the cold-rolled alloy steel is annealed, so as to manufacture a high-strength and high-ductility steel in a phase with 50% to 70% of residual austenite.
CHINA STEEL CORPORATION
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Kuo-Cheng Lung-Jen Delphic Chih-Hung Jui-Fan Chih-Pu Ming-Chin
Yang Chiang Chen Ou Tu Chang Tsai