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3. 铸坯1/4横截面低倍侵蚀与代表性部位枝晶特征

Fig.3. Macro-etching and typical dendritic morphology of the round casting (1/4 cross section, A—equiaxed crystal, B—crossed dendrite, C—columnar crystal, dash circles show spot segregations)