CPC C21D 9/46 (2013.01) [C21D 6/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C22C 38/002 (2013.01); C22C 38/04 (2013.01)] | 9 Claims |
1. A method for preparing a TWIP steel, comprising
sequentially performing a cold rolling, a annealing treatment and a tempering treatment on a hot-rolled TWIP steel plate to obtain a TWIP steel,
wherein the TWIP steel comprises, in percentages by mass, 0.45%-0.75% of C, 16.20%-18.80% of Mn, 0.01%-0.05% of Ce, 0.02%-0.05% of Ba, not more than 0.0015% of O, not more than 0.003% of S, not more than 0.012% of P, and a balance of Fe.
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