| 工艺参数对热冲压成型钢组织性能及硼偏聚的影响 |
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| 引用本文： | 江海涛,唐荻,米振莉,陈雨来.工艺参数对热冲压成型钢组织性能及硼偏聚的影响[J].材料工程,2010(2). |
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| 作者姓名： | 江海涛 唐荻 米振莉 陈雨来 |
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| 作者单位： | 北京科技大学,高效轧制国家工程研究中心,北京,100083;北京科技大学,高效轧制国家工程研究中心,北京,100083;北京科技大学,高效轧制国家工程研究中心,北京,100083;北京科技大学,高效轧制国家工程研究中心,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(50804005) |
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| 摘 要： | 通过Gleeble1500热/力模拟实验机对轧后含硼钢板进行了热冲压过程模拟,分析了各种热处理条件对含硼钢组织性能的影响,并采用X射线衍射技术和径迹照相技术分析了硼的偏聚和硼相析出情况。研究结果表明:提高加热温度或延长保温时间,可促进钢的奥氏体化和硼的偏聚。通过偏聚合适含量的硼,能够很好地起到提高淬透性作用,使材料得到全部马氏体组织。热冲压成型过程中的变形破碎了奥氏体组织,促进相变,更易获得细小的马氏体组织。当冷却速度不高时,钢中"硼相"会沿晶界连续析出,从而降低了硼钢的淬透性。
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| 关 键 词： | 热冲压成型 硼钢 马氏体 硼偏聚 |
Influence of Processing Parameters of Hot Stamping to Mechanical Properties of Martensite Steel and Segregation of Boron |
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| JIANG Hai-tao,TANG Di,MI Zhen-li,CHEN Yu-lai.Influence of Processing Parameters of Hot Stamping to Mechanical Properties of Martensite Steel and Segregation of Boron[J].Journal of Materials Engineering,2010(2). |
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| Authors: | JIANG Hai-tao TANG Di MI Zhen-li CHEN Yu-lai |
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| Affiliation: | National Engineering Research Center for Advanced Rolling Technology;University of Science and Technology Beijing;Beijing 100083;China |
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| Abstract: | The hot stamping processes of B-bearing steel sheet after hot rolling were simulated at Gleeble 1500,the microstructure and mechanical properties were analyzed at different heat treatment conditions,and the segregation of boron and precipitation of boron phase were investigated by X-ray diffraction analysis and particulate tracking autoradiograph(PTA) technology.It can be found that the boron segregation and austenization of martensite steel were accelerated with the increasing of heating temperature and ho... |
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| Keywords: | hot stamping boron-bearing steel martensite boron segregation |
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