| 热处理工艺对27SiMn钢力学性能的影响 |
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| 引用本文： | 杨栋杰,刘雅政,周乐育,李亚欣,井溢农,杨维宇.热处理工艺对27SiMn钢力学性能的影响[J].北京科技大学学报,2012(Z1):34-38. |
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| 作者姓名： | 杨栋杰 刘雅政 周乐育 李亚欣 井溢农 杨维宇 |
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| 作者单位： | 北京科技大学材料科学与工程学院;北京科大中冶技术发展有限公司;包钢(集团)公司技术中心 |
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| 摘 要： | 27SiMn液压支架管经过调质热处理来实现其良好的综合力学性能.采用四因素三水平的热处理正交试验,研究了不同热处理工艺参数(淬火温度、淬火保温时间、回火温度和回火保温时间)对力学性能的影响,并确定了最优热处理工艺制度为930℃,40 min淬火和480℃,50 min回火.经最优热处理工艺处理后,其力学性能为:屈服强度895 MPa,抗拉强度1030MPa,伸长率15%,断面收缩率54%,冲击功53.3 J,满足了GB/T 17396—1998标准中对27SiMn钢的性能要求.
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| 关 键 词： | 合金钢 钢管 热处理 力学性能 正交试验 |
Effect of heat treatment on the mechanical properties of 27SiMn steel |
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| YANG Dong-jie,LIU Ya-zheng,ZHOU Le-yu,LI Ya-xin,JING Yi-nong,YANG Wei-yu.Effect of heat treatment on the mechanical properties of 27SiMn steel[J].Journal of University of Science and Technology Beijing,2012(Z1):34-38. |
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| Authors: | YANG Dong-jie LIU Ya-zheng ZHOU Le-yu LI Ya-xin JING Yi-nong YANG Wei-yu |
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| Institution: | 1) School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) SinoMet Technologies Co.Ltd.,University of Science and Technology Beijing,Beijing 100029,China 3) Baotou Iron and Steel Group Technology Center,Baotou 014010,China |
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| Abstract: | Excellent mechanical properties of 27SiMn hydraulic support can be achieved by heat treatment.In this paper heat treatment orthogonal experiments with four factors and three levels were performed to investigate the effects of quenching temperature and holding time as well as tempering temperature and holding time on the mechanical properties of the hydraulic support.The heat treatment process was optimized as quenching after holding at 930 ℃ for 40 min and then tempering at 480 ℃ for 50 min.At these optimized heat treatment parameters,the hydraulic support has excellent comprehensive mechanical properties: the yielding strength of 895 MPa,the tensile strength of 1 030 MPa,the elongation of 15%,the area reduction of 54%,and the impact energy of 53.3J,which meet the requirements of 27SiMn steel according to the standard GB/T 17396—1998. |
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| Keywords: | alloy steel steel pipe heat treatment mechanical properties orthogonal experiments |
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