| Effect of Rare Earths on Properties of BNbRE Rail Steel |
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| 作者姓名： | 李春龙 智建国 王荣 |
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| 作者单位： | Baotou Iron & Steel(Group)Corporation，Baotou Iron & Steel(Group)Corporation，Baotou Iron & Steel(Group)Corporation Baotou 014010，China，Northeastern University，Shenyang 110006，China，Baotou 014010，China，Baotou 014010，China |
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| 基金项目： | ProjectsupportedbyInnerMongoliaHighTechnologyInnovation |
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| 摘 要： | The development and properties of BNbRE rail steel and the effect of RE on rail steel were studied. The results show that the properties of rail steel (δb ≥980 MPa, δ5≥ 8 % ) can be improved by adding RE and niobium and adjusting the content of C, Si and Mn in steel. At the same time, the abrasion resistance, contact fatigue and fatigue property of BNbRE rail steel are excellent. It also shows that RE in rail steel has the functions of purifying steel, modifying inclusion and micro-alloy action effect. The improved steel-making process enhances the quality of molten steel. Although the content of RE is low, excellent properties of BNbRE rail steel are achieved.
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| 关 键 词： | 钢轨钢 稀土 性能 BNbRE |
Effect of Rare Earths on Properties of BNbRE Rail Steel |
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| Li Chunlong ,Zhi Jianguo ,Wang Rong.Effect of Rare Earths on Properties of BNbRE Rail Steel[J].Journal of Rare Earths,2003,21(4):469-473. |
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| Authors: | Li Chunlong Zhi Jianguo Wang Rong |
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| Affiliation: | Li Chunlong 1,2 *,Zhi Jianguo 1,Wang Rong 1 |
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| Abstract: | The development and properties of BNbRE rail steel and the effect of RE on rail steel were studied. The results show that the properties of rail steel (σb≥980 MPa, δ5≥8%) can be improved by adding RE and niobium and adjusting the content of C, Si and Mn in steel. At the same time, the abrasion resistance, contact fatigue and fatigue property of BNbRE rail steel are excellent. It also shows that RE in rail steel has the functions of purifying steel, modifying inclusion and micro-alloy action effect. The improved steel-making process enhances the quality of molten steel. Although the content of RE is low, excellent properties of BNbRE rail steel are achieved. |
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| Keywords: | metal materials rail steel property rare earths |
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