| Cr／C对31％Cr高铬铸铁组织与性能的影响 |
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| 引用本文： | 郭二军,张伟,王丽萍,黄永长. Cr／C对31％Cr高铬铸铁组织与性能的影响[J]. 哈尔滨理工大学学报, 2009, 14(1): 72-74 |
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| 作者姓名： | 郭二军 张伟 王丽萍 黄永长 |
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| 作者单位： | 哈尔滨理工大学,材料科学与工程学院,黑龙江,哈尔滨,150040 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目，广东省佛山市科技发展专项基金 |
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| 摘 要： | 研究了Cr／C对31％Cr高铬铸铁铸态组织、硬度、冲击韧性、耐磨性等性能的影响．结果表明：在本实验条件范围内，所制备的Cr31高铬铸铁均为过共晶组织和六角棒状的M7C3碳化物；随着Cr／C的增加，组织中的过共晶碳化物逐渐变得细小，而且分布更加弥散、均匀，在相同大小的视场内过共晶碳化物的相对数量减少，铸铁的过共晶度下降．随着Cr／C的增加，Cr31铸铁的硬度略有下降，而冲击韧性有明显的升高趋势．当外加载荷为70N时，Cr31铸铁的耐磨性随Cr／C的增加而下降．
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| 关 键 词： | 高铬铸铁 Cr/C 组织 性能 |
Effect of the Cr/C on the Microstructure and Properties of High Chromium Cast Iron Containing 31% Cr |
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| GUO Er-jun,ZHANG Wei,WANG Li-ping,HUANG Yong-chang. Effect of the Cr/C on the Microstructure and Properties of High Chromium Cast Iron Containing 31% Cr[J]. Journal of Harbin University of Science and Technology, 2009, 14(1): 72-74 |
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| Authors: | GUO Er-jun ZHANG Wei WANG Li-ping HUANG Yong-chang |
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| Affiliation: | School of Materials Science and Engineering;Harbin University of Science and Technology;Harbin 150040;China |
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| Abstract: | The effect of the Cr/C on the microstructure,hardness,impact toughness,wear resistance of high chromium cast iron containing 31% Cr were investigated.The results show that,under the experiment condition,the prepared Cr31 high chromium cast iron all have hypereutectic microstructure and hexangular rod-like M7C3carbides.As the Cr/C increases,the carbides became smaller gradually,and its distribution became dispersively and well-distributed,and its relative quantity decreased.This shows that as the Cr/C increa... |
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| Keywords: | Cr/C |
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