高强耐蚀管钢点状偏析及带状缺陷的特征与演变
李博1,张忠铧2,刘华松1,罗明2,兰鹏1,唐海燕1,张家泉1()
Characteristics and Evolution of the Spot Segregations and Banded Defects in High Strength Corrosion Resistant Tube Steel
Bo LI1,Zhonghua ZHANG2,Huasong LIU1,Ming LUO2,Peng LAN1,Haiyan TANG1,Jiaquan ZHANG1()

图5. 铸坯横截面上自表及里凝固二次枝晶间距变化

Fig.5. Variation of the surface inward secondary dendrite spacing of the round casting (CET—columnar to equiaxed transition)