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控轧过程中KQ450钢的晶粒细化和析出物行为
引用本文:白元强,刘春明,边建华,邱利,翟少岩,方克明.控轧过程中KQ450钢的晶粒细化和析出物行为[J].北京科技大学学报,1999,21(4):345-348.
作者姓名:白元强  刘春明  边建华  邱利  翟少岩  方克明
作者单位:1. 北京科技大学材料科学与工程学院,北京,100083
2. 首都钢铁公司技术中心,北京,100041
3. 北京科技大学应用科学学院
摘    要:通过定量金相,扫描电镜,透射电镜和X射线小角度散射方法研究KQ450微合金钢在不同控制轧制条件下,工艺参数对其铁素体晶粒细化和析出物行为的影响,结晶表明:加热温度对KQ450微合金钢晶粒粗化比较敏感;析出相是面心立方结构的NbC,VC和V(CN)。析出物的平均尺寸随冷却速度的增大而减小。

关 键 词:KQ450微合金钢  控制轧制  铁素体晶粒细化  析出物

Grain Refinement and Precipitation Behavior in KQ450 Steels during Controlled Rolling
Bai Yuanqiang,Liu Chunming,Bian Jianhua,Qiu Li,Zhai Shaoyan,Fang Keming.Grain Refinement and Precipitation Behavior in KQ450 Steels during Controlled Rolling[J].Journal of University of Science and Technology Beijing,1999,21(4):345-348.
Authors:Bai Yuanqiang  Liu Chunming  Bian Jianhua  Qiu Li  Zhai Shaoyan  Fang Keming
Abstract:The effect of hot-working parameters on the ferrite grain refinement and Precipitation behaviorof KQ450 steel during different controlled rolling have been investigated by means of quantitative metallography, SEM, TEM and X-ray small angle scatter analysis.The results show that heating temperature is susceptible to the ferrite grain size of KQ450 steel; the precipitated phases are NbC, VC and V(CN); With increasingcooling rate the average size of the precipitated phases decrease.
Keywords:KQ450 microalloy steel  controlled rolling  fetrite grain refinement  precipitated phase
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