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| 高强度高韧性贝氏体钢轨研究 | |
| 引用本文： | 陈建军,姜茂发,李凯. 高强度高韧性贝氏体钢轨研究[J]. 钢铁, 2007, 42(2): 68-71 |
| 作者姓名： | 陈建军 姜茂发 李凯 |
| 作者单位： | 1. 东北大学材料与冶金学院,辽宁,沈阳,110004;包头钢铁集团公司技术中心,内蒙古,包头,014010 2. 东北大学材料与冶金学院,辽宁,沈阳,110004 3. 包头钢铁集团公司技术中心,内蒙古,包头,014010 |
| 摘 要： | 采用合金化方法生产的高强度高韧性贝氏体钢轨及道岔,其热轧态抗拉强度大于1 250 MPa,比U75V提高25%;轨腰冲击韧性大于30 J/cm2,比U75V提高3倍以上.介绍了热轧贝氏体钢轨的强化机理、生产工艺及各项检验结果.用贝氏体钢制作的铁路道岔在线路运行已一年半以上,货运量达2亿t,目前仍在使用.在北京铁路局铺设的全贝氏体组合道岔,其使用寿命进一步提高,高强度高韧性贝氏体钢在铁路使用将得到较大的社会和经济效益. |
| 关 键 词： | 高强度 高韧性 贝氏体钢轨 |
| 文章编号： | 0449-749X（2007）02-0068-04 |
| 修稿时间： | 2006-05-22 |
Research on Bainite Steel Rail With High Strength and High Toughness |
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| CHEN Jian-jun,JIANG Mao-fa,LI Kai. Research on Bainite Steel Rail With High Strength and High Toughness[J]. Iron & Steel, 2007, 42(2): 68-71 | |
| Authors: | CHEN Jian-jun JIANG Mao-fa LI Kai |
| Affiliation: | 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China; 2. Technical Center, Baotou Iron and Steel Group Co. , Baotou 014010, Inner Mongolia, China |
| Abstract: | Bainite alloy steel rail and fork-rail with high strength and high toughness of which tensile strength in hotrolled condition can reach up to 1 250 MPa,25% higher than that of U75V,and impact toughness of rail waist is above 30 J/cm^2 ,3 times higher than that of U75V. The production and inspection methods of hot-rolled bainite steel rail are introduced. The bainite steel forth rails have been used over 1.5 years,with a volume of rail freight about 200 million tons. Life of bainite steel fork-rail in Beijing railways is increasing furthermore. By using bainite steel rails with high strength and high toughness, considerable social benefits and economic benefits can be obtained. |
| Keywords: | high strength high toughness bainite steel rail |
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