薄板坯连铸连轧生产超薄低碳钢板的组织与性能
Microstructure Characteristics and Properties of Ultra Thin Low Carbon Strips Produced by FTSR Technology
摘 要
利用光学显微镜、扫描电镜和透射电镜等研究了唐钢薄板坯连铸连轧线(FTSR线)热轧低碳钢超薄板(厚0.8 mm)的显微组织和第二相析出粒子,对钢板的力学性能和成形性等进行了研究.结果表明：超薄低碳钢板的显微组织为比较细小、均匀的铁素体晶粒及少量的珠光体组织,铁素体的平均晶粒尺寸约7.0 μm,钢板具有良好的综合力学性能和优良的成形性,钢中存在的较高密度位错和少量第二相析出粒子对钢板性能的提高起到了有利的作用.
低碳钢板
微观组织
力学性能
FTSR technology
low carbon strips
microstructure
mechanical properties
Abstract
The microstructure characteristics and the precipitates of low carbon strips were researched by optical microscope,scanning and transmission electron microscope.The strips used in the experiments were produced by Flexible Thin Slab Rolling (FTSR) technology of Tangshan Steel Company,and the mechanical properties and formability of the strips were analyzed.The results show that the microstructure of ultra thin low carbon strips produced by FTSR technology consist of uniform fine ferrite and a little pearlite,and the diameter size of the ferrite is about 7.0 μm.The general mechanical properties and formability of the products are excellent,and also,the high density dislocation and a small quantity of precipitates existed in the microstructure are useful to the properties of the strips.
中图分类号 TG142.33
所属栏目
基金项目 国家自然科学基金资助项目(50334010)
收稿日期 2005/10/28
修改稿日期 2005/12/20
网络出版日期
作者单位点击查看
备注王欣(1978-),女,河北衡水人,博士研究生.
引用该论文: WANG Xin,KANG Yong-lin,YU Hao,CHEN Li-bin,KONG Qing-fu,SHI Dong-ri. Microstructure Characteristics and Properties of Ultra Thin Low Carbon Strips Produced by FTSR Technology[J]. Materials for mechancial engineering, 2006, 30(11): 18～20
王欣,康永林,于浩,陈礼斌,孔庆福,史东日. 薄板坯连铸连轧生产超薄低碳钢板的组织与性能[J]. 机械工程材料, 2006, 30(11): 18～20
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参考文献
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【2】伍仲华.我国薄板坯连铸连轧技术的发展[J].重型机械科技,2004,(2):47-50.
【3】意大利达涅利威恩联合公司,埃及 AL板带公司.优质超薄产品用的TSR技术发展[J].钢铁,2003,38(4):44-51.
【4】于浩,康永林,王克鲁,等.CSP热轧1.0 mm超薄规格低碳钢板的组织及性能[J].材料科学与工艺,2002,10(2):122-125.
【5】Zambrano P C,Guerrero M P,Colas R,et al.Microstructural analysis of hot-rolled,low-carbon steel strips[J]. Materials Characterization,2001,47:275-282.
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