The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2023
Filed:
Jan. 25, 2022
Jiangxi University of Science and Technology, Ganzhou, CN;
Guorui Scientific Innovation Rare Earth Functional Materials (Ganzhou) Co., Ltd, Ganzhou, CN;
Zhigang Wang, Ganzhou, CN;
Lingqiang Zhong, Ganzhou, CN;
Jieyun Ye, Ganzhou, CN;
Hebin Wang, Ganzhou, CN;
Weizhen Liu, Ganzhou, CN;
Weihao Cai, Ganzhou, CN;
Xuwei Liu, Ganzhou, CN;
Jiangxi University of Science and Technology, Ganzhou, CN;
Guorui Scientific Innovation Rare Earth Functional, Ganzhou, CN;
Abstract
A high-strength and high-plasticity TWIP steel and a preparation method thereof are disclosed. In the disclosure, comprehensive properties of TWIP steel are improved by inclusion modification with Ce and Ba addition, fine grain strengthening and twinning nanocrystallization; the grain size is controlled by a low-temperature cold rolling, a transient annealing treatment and a low-temperature tempering treatment. Considering the addition of Ce, stacking fault energy of the TWIP steel is reduced, and the formation of twins, and the division of twins into grains are promoted, which further reduces a mean free path of dislocation motion, thereby improving yield strength, and finally obtaining a high-strength and high-plasticity TWIP steel.