关键词: CSP, 模拟, 0.42%Cu, Hi-B钢, 冷轧板, 退火, 织构, 组织

Abstract: The test 0.42% Cu Hi-B steel (/% : 0.10C, 3.25Si, 0.16Mn, 0.019P, 0.011S, 0.021 Als, 0.42Cu ) is melted by induction furnace at laboratory and cast to 15 kg ingot, broken down to 60 mm billet then hot-rolled to 3.95 mm plate. The tested specimen is 0.48 mm sheet cold-rolled by 88% reduction and annealed at 830 °C, 850 °C and 870 °C for 3 min, 5 min and 7 min. The metallographic examination and texture analysis of annealed specimens are carried out. The test results show that the average grain size of specimen annealed at 850 °C for 5 min is 14.49 μm, with deviation angle 15° the content of {111}＜112＞、{111}＜110＞ etc favourable textures is more, while the content of {001}＜110＞、{110}＜112＞ etc unfavourable textures is less. The optimized primary recrystallization annealed process of the test cold-rolled sheet is at 850 °C for 5 min.

Key words: CSP, Simulation, 0. 42%Cu, Hi-B Steel, Cold-Rolled Sheet, Annealing, Texture, Structure