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·348 北京科技大学学报 1999年第4期 参考文献 及轧后快冷的研究.钢铁,1984,196):11 3蒋克,陶佑卿微合金碳氮化物形貌、结构及化学组成的 】刘永铨.钢的热处理.北京:冶金工业出版社,1981138 研究.钢铁研究,1990(1)43 2崔文喧,戴品光,曹厚义,芦文增.含铌低碳钢控制轧制 Grain Refinement and Precipitation Behavior in KQ450 Steels during Controlled Rolling Bai Yuanqiang,Liu Chunming,Bian Jianhua,Oiu Li',Zhai Shaoyan",Fang Keming" 1)Material Science and Engineering School ,UST Beijing,Beijing 100083,China 2)Technology Center of Capital Iron and Steel Corp.Beijing 100041 ,China 3)Applied Science School,UST Beijing.Beijing 100083,China ABSTRACT The effect of hot-working parameters on the ferrite grain refinement and precipitation behavior of KQ450 steel during different controlled rolling have been investigated by means of quantitative metallog- raphy,SEM,TEM and X-ray small angle scatter analysis.The results show that heating temperature is suscep- tible to the ferrite grain size of KQ450 steel;the precipitated phases are NbC,VC and V(CN);With increasing cooling rate the average size of the precipitated phases decrease. KEY WORDS KQ450 microalloy steel;controlled rolling;ferrite grain refinement;precipitated phase (上接第344页) Development of Hot-rolled Drawn Axle-housing Steel Chu Yuanzhang,Qi Peng,Di Lihua Material Seience and Engineering School,UST Beijing.Beijing 100083,China ABSTRACT During the development of axle-housing steel,the composition and hot-rolling schedules have been studied and determined,the mechanics properties and formability of axle-housing steel have been tested, and the effects of composition and hot-rolling schedules on the mechanics properties and formability of axle- housing steel have been analyzed. KEY WORDS axle-housing steel;composition techniques of hot-rolling;properties· 北 京 科 技 大 学 学 报 年 第 期 参 考 文 献 刘永栓 钢 的热处理 北京 冶金工业 出版社 , 崔文喧 , 戴品光 , 曹厚义 , 芦文增 含妮低碳钢控制轧制 及轧后快冷的研究 钢铁 , , 蒋克 ,陶佑卿 微合金碳氮化物形貌 、 结构及化学组成的 研究 钢铁研究 , ,’, 才 ’, , ” , ,七 叮 心 ’ , , , , , , , 一 , , 一 , 币 上 接第 页 一 一 月 口 , , , , , 一 , 一 , 一 , 一 一 一
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