薄板坯连铸连轧生产含硼低碳热轧带钢的软化机理

金属学报, 2006, 42(11): 1202-1206.

薄板坯连铸连轧生产含硼低碳热轧带钢的软化机理

仇圣桃 , 肖丽俊 , 刘家琪 , 干勇

北京 100081

State Key Laboratory of Advanced Steel Processes and Products

Central Iron and Steel Research Institute

Beijing 100081

关键词：（硼微合金化） , （thin slab casting and rolling） , （mechanical properties）

Softening Mechanism of Boron—Bearing Low--Carbon Hot Strips Produced by TSCR Route

QIU Shengtao , XIAO Lijun , LIU Jiaqi , GAN Yong

Keywords：（boron micro-alloying） , （薄板坯连铸连轧） , （力学

通过薄板坯连铸连轧（TSCR）生产低碳铝镇静钢热轧钢带流程的实验室模拟，分析了含10ppm～50ppm硼、0.005%氮热轧钢带的组织、析出物的特点及性能变化。结果表明：钢中加入10ppm～50ppm硼的热轧钢带晶粒度达到7~8级，平均晶粒尺寸达到22～35μm，屈服强度降低约94Mpa。

The SPHC (Steel Plate Heat Commercial) hot strips containing 10ppm～50ppm B were produced in the simulation of TSCR production route in the laboratory,the effects of boron micro-alloying on the microstucture,precipitates and mechanical properties were investigated.The results showed that the grain-size scale of the SPHC hot strips containing 10ppm～50ppm B can attain to 7~8 grade,the mean grain size was up to 22～35μm, the yield strength decreased by 94Mpa.

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