Abstract:In order to improve the uniformity of the grain structure of the hot-rolled stainless steel clad plate, the numerical simulation scheme was designed by the orthogonal experimental optimization design method. The effects of rolling parameters on the non-uniformity factor of the base, the average grain size of the base, the non-uniformity factor of clad and the average grain size of the clad were studied, and the order of the significant effects of each parameter was analyzed. The comprehensive equilibrium method was used to obtain the optimum scheme. Optimum parameters were, the rolling reduction rate is 60%, the blooming temperature is 1 100 ℃ and the rolling rate is 300 mm/s. The optimized parameters were simulated by the finite element method, and the distribution and the variation of the grain size along with the thickness direction of the stainless steel clad plate during the hot rolling were obtained. By comparing the grain size obtained by experiments and simulations, the error of the grain size is less than 5%, which verifies the correctness and reliability of the finite element model.
宜亚丽, 韩晓铠, 张磊, 金贺荣. 316L/EH40不锈钢复合板热轧过程中晶粒组织的均匀性[J]. 钢铁, 2020, 55(1): 47-55.
YI Ya-li, HAN Xiao-kai, ZHANG Lei, JIN He-rong. Homogeneity of grain structure for 316L/EH40 stainless steel clad plate during hot rolling process. Iron and Steel, 2020, 55(1): 47-55.
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