【作者】 柳得橹； 王元立； 霍向东； 康永林； 傅杰； 王中丙； 李烈军； 范胜标； 陈贵江； 李柯新；

【Author】 Liu Delu Wang Yuanli Huo Xiangdong Rang Yonglin Fu Jie(University of Science and Technology Beijing,Beijing 100083)Wang Zhongbing Li Liejun Fan Shengbiao Chen Guijiang Li Kexin(Guangzhou Zhujiang Iron and Steel Co. Ltd.,Guangzhou 510620)

【机构】 北京科技大学； 广州珠江钢铁有限责任公司；

【摘要】 CSP薄板坯连铸连轧短流程工艺因其简洁、可靠而获得了广泛的应用.对CSP工艺生产的低碳钢薄板UJ330(成分与Q195钢相近)的初步研究结果表明:其屈服强度大多在330～410MPa范围,延伸率为32%～45%、晶粒尺寸为4～6μm.TEM观察证实在该低碳钢内形成了大量弥散沉淀相粒子,线度为20nm左右,此外还存在许多100～300nm大小的硫化物.这些沉淀相具有明显的弥散强化作用.更多还原

【Abstract】 The microstructure and mechanical properties of a low carbon steel strip (ZJ330) produced by theCSP process has been studied.The primary results showed that large number of dispersive precipitates formed in the ferrite matrix of the steel strip.Dimension of them is about 20nm.Small sulfide particles with 100~300nm in size have also been observed.It is expected that these dispersive precipitates contribute strength of the low carbon steel strip produced by CSP process.Further study is invited for clarify the nature of these precipitations.更多还原