中碳<strong>Nb</strong>合金化钢液析碳化物的析出行为

中碳Nb合金化钢液析碳化物的析出行为

梁炫, 侯廷平, 张东, 谭昕暘, 吴开明

Precipitation Behavior of Primary Carbides in Medium Carbon Nb-Alloyed Steel

LIANG Xuan, HOU Tingping, ZHANG Dong, TAN Xinyang, WU Kaiming

图11 Nb含量对溶质元素偏析比的影响

Fig.11 Effects of Nb content on segregation ratios of C (a) and Nb (b) ( $f_{s}^{δ / γ}$ is the solid fraction of NbC carbide when L + δ→L + γ phase transition occurs, w(M) $_{L, 0}$ (M = C, Nb) is the initial mass fraction of M in liquid phase. Different colors of f_s represent different steels)