| 轧辊用高钒高速钢、高铬铸铁滚动磨损性能研究 |
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| 引用本文： | 王强,杨涤心,魏世忠,龙锐,李炎. 轧辊用高钒高速钢、高铬铸铁滚动磨损性能研究[J]. 材料热处理学报, 2006, 27(6): 84-88 |
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| 作者姓名： | 王强 杨涤心 魏世忠 龙锐 李炎 |
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| 作者单位： | 河南科技大学,河南,洛阳,471003;河南省耐磨材料工程技术研究中心,河南,洛阳,471003 |
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| 摘 要： | 研究了高钒高速钢（C：3％，V：10％）和高铬铸铁（Cr26）两种轧辊用材料的力学性能和滚动磨损性能。应用位错理论分析了高钒高速钢、高铬铸铁中碳化物裂纹的形核和滚动磨损的循环特性对材料滚动磨损性能的影响。结果表明，碳化钒内部的纳米亚结构在滚动磨损过程中能够降低裂纹形核率，高钒高速钢磨面及亚表层的循环软化能够延缓疲劳裂纹的扩展，基于以上因素，高钒高速钢滚动耐磨性是高铬铸铁的4．4倍。
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| 关 键 词： | 滚动磨损性能 循环特性 再结晶组织 Orowan机制 |
| 文章编号： | 1009-6264（2006）06-0084-05 |
| 收稿时间： | 2005-09-15 |
| 修稿时间： | 2005-09-152006-09-03 |
Investigation of rolling friction behavior of high vanadium high speed steel and high chrome cast iron |
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| WANG Qiang,YANG Di-xin,WEI Shi-zhong,LI Rui,LONG Yan. Investigation of rolling friction behavior of high vanadium high speed steel and high chrome cast iron[J]. Transactions of Materials and Heat Treatment, 2006, 27(6): 84-88 |
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| Authors: | WANG Qiang YANG Di-xin WEI Shi-zhong LI Rui LONG Yan |
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| Abstract: | Rolling friction behavior and mechanical property of high vanadium high speed steel and high chrome cast iron were studied. The effects of carbide cracking and the change of microstructure under cyclic loading on wear resistance of material were discussed. The results show that nanometre mircro-grains in VC decreased the rate of crack nucleation and that cyclic change of metallographic microstructure in worn surface delayed the crack extension. For these reasons, wear resistance of high vanad-ium high speed steel shows better than that of high chrome cast iron. |
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| Keywords: | wear resistance cyclic properties recrystallized structure orowan mechanism |
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