| 空冷贝氏体钢动态压缩性能研究 |
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| 引用本文： | 程焕武,吴琼,付克勤,薛云飞,广文,滕军.空冷贝氏体钢动态压缩性能研究[J].北京理工大学学报,2011,31(4):486-488,496. |
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| 作者姓名： | 程焕武 吴琼 付克勤 薛云飞 广文 滕军 |
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| 作者单位： | 1. 北京理工大学材料学院,北京,100081
2. 中国兵器工业集团公司,第五二研究所烟台分所,山东,烟台,264000 |
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| 摘 要： | 利用SHPB动态力学性能测试系统、金相显微镜和S-4800场发射扫描电镜,研究了空冷贝氏体971钢的动态压缩性能与热处理工艺、长径比和试验温度之间的关系.结果表明:971钢正火后500℃回火处理随长径比提高动态压缩屈服强度提高约8%,正火后650℃回火处理随长径比提高动态屈服强度提高约20%.971钢具有低温敏感性,在—40℃低温下的动态压缩屈服强度比室温下降低约20%;帽形试样绝热剪切带内组织比带外组织致密,伴有熔化现象并形成棱状和微孔网状形貌.
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| 关 键 词： | 空冷贝氏体钢 动态压缩 帽形试样 低温 绝热剪切带 |
| 收稿时间： | 1/8/2011 12:00:00 AM |
Research on Dynamic Compress Properties of Air-Cooled Bainitic Steel |
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| CHENG Huan-wu,WU Qiong,FU Ke-qin,XUE Yun-fei,GUANG Wen and TENG Jun.Research on Dynamic Compress Properties of Air-Cooled Bainitic Steel[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(4):486-488,496. |
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| Authors: | CHENG Huan-wu WU Qiong FU Ke-qin XUE Yun-fei GUANG Wen and TENG Jun |
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| Institution: | School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;No.52 Institute of China North Industries Group Corporation Yantai Branch, Yantai, Shandong 264000, China;School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The dynamic compress properties of air-cooled bainitic 971 steel,which depend on the heat treatment process,length-diameter ratio and test temperature,were investigated with the SHPB dynamic mechanical properties testing system,metallurgical microscope and the S-4800 scanning electronic microscope.The results indicate that the dynamic compression yield strength of 971 steel is increased by 8%with the raised length-diameter ratio when 971 steel went through the tempering at 500℃after normalizing,while increased by 20%through the tempering at 650℃after normalizing.971 steel has the low temperature sensitivity,its dynamic compression yield strength at—40℃is lower about 20%than it at room temperature.The inner structure of adiabatic shear band of the hat-shaped sample is denser than outer one with melting appearance and morphology of ridge-like and porous network structure. |
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| Keywords: | air-cooled bainite steel dynamic compression hat-shaped sample low temperature adiabatic shear band |
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