| Si对中锰钢淬火配分组织和性能的影响 |
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| 引用本文： | 赵晖,时捷,李楠,王存宇,胡劲,惠卫军,曹文全.Si对中锰钢淬火配分组织和性能的影响[J].材料研究学报,2011,25(1):45-50. |
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| 作者姓名： | 赵晖 时捷 李楠 王存宇 胡劲 惠卫军 曹文全 |
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| 作者单位： | 1.昆明理工大学材料科学与工程学院 昆明 650093
2.钢铁研究总院结构材料研究所 北京 100081 |
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| 基金项目： | 国家“九七三”计划2010CB630803和“八六三”计划2009AA033401、2009AA03Z519资助项目。 |
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| 摘 要： | 将20Mn5钢和20Mn5Si2钢进行淬火和配分(Q&P)工艺处理,用扫描电镜观测其微观组织,用X射线法测量残余奥氏体量,研究了Si对其微观组织和力学性能的影响.结果表明,试验钢中的奥氏体含量明显高于传统的TRIP钢和Q&P 工艺处理钢;在相同Q＆P工艺条件下,20Mn5Si2钢比20Mn5有较多的残余奥氏体,析出物数...
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| 关 键 词： | 金属材料 中锰钢 淬火和配分 TRIP效应 硅 高强高塑 |
| 收稿时间： | 2010-09-15 |
| 修稿时间： | 2010-11-24 |
Effects of Si on the Microstructure and Mechanical Property of Medium Mn Steel Treated by Quenching and Partitioning Process |
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| ZHAO Hui SHI Jie LI Nan WANG Cunyu HU Jin HUI Weijun CAO Wenquan .Faculty of Materials , Metallurgical Engineering,Kunming University of Sci.& Tech.,Kunming .Central Iron & Steel Research Institute,Beijing.Effects of Si on the Microstructure and Mechanical Property of Medium Mn Steel Treated by Quenching and Partitioning Process[J].Chinese Journal of Materials Research,2011,25(1):45-50. |
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| Authors: | ZHAO Hui SHI Jie LI Nan WANG Cunyu HU Jin HUI Weijun CAO Wenquan Faculty of Materials Metallurgical Engineering Kunming University of Sci& Tech Kunming Central Iron & Steel Research Institute Beijing |
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| Affiliation: | 1.Faculty of Materials and Metallurgical Engineering, Kunming University of Sci. & Tech., Kunming 650093
2.Central Iron & Steel Research Institute, Beijing 100081 |
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| Abstract: | Effects of Si on the microstructure and mechanical property of 20Mn5 steel and 20Mn5Si2 steel processed by quenching and partitioning (Q&P) were investigated. The microstructure characterization and austenite fraction measurement were carried out using scanning electron microscopy and x--rays diffraction. It was found that there is much more austenite fraction in the studied medium manganese steels than that of conventional TRIP steels and steels treated by Q&P process; and under same experimental condition, the austenite fraction in 20Mn5Si2 is significantly higher and fewer precipitated carbides than that in 20Mn5 steel. It was proposed that the larger fractioned austenite in Si--medium Mn steel results in the much lower yield stress and much higher product of tensile strength to elongation than that of the medium Mn steel without Si both processed by quenching and partitioning. |
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| Keywords: | metallic materials medium Mn steel quenching and partitioning (Q& P) TRIP effects Si high strength and high ductility |
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