| 离心铸造铁基梯度功能复合材料 |
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| 引用本文： | 邓刚,宋延沛,王文焱. 离心铸造铁基梯度功能复合材料[J]. 机械工程材料, 2004, 28(8): 21-23 |
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| 作者姓名： | 邓刚 宋延沛 王文焱 |
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| 作者单位： | 河南科技大学材料科学与工程学院,河南,洛阳,471039 |
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| 摘 要： | 用离心铸造的方法获取碳化钨颗粒增强铁基复合材料，分析了复合材料的力学性能、微观组织结构及界面反应。结果表明：WCP／Fe-C复合材料表层厚度为18～25mm，WCP体积分数约70％，其冲击韧度ak达到5～6J／cm^2，复合材料表层和基体硬度分别达到63～65HRC和50～55HRC。WC颗粒能够被高温铁液局部溶解，甚至解体，使复合材料表层和基体不同程度合金化。
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| 关 键 词： | 离心铸造 颗粒增强铁基复合材料 力学性能 |
| 文章编号： | 1000-3738(2004)08-0021-03 |
Centrifugally Casted Iron Matrix Functionally Gradient Composites |
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| DENG Gang,SUING Yan-pei,WANG Wen-yan. Centrifugally Casted Iron Matrix Functionally Gradient Composites[J]. Materials For Mechanical Engineering, 2004, 28(8): 21-23 |
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| Authors: | DENG Gang SUING Yan-pei WANG Wen-yan |
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| Abstract: | WC particles reinforced iron matrix composites were manufactured by the centrifugal casting technique. The mechanical properties, microstructure, interface reactions of the composites were analyzed. The results show that the WCp/Fe-C composite surface layer of 18-25mm with a volume fraction of WCp of about 70% was formed by the centrifugal casting technique. Its impact toughness reachesd 5 - 6J/cm2, the hardness of composite surface layer and matrix were kept at 63-65HRC and 50?5HRC respectively. The WC particles were partly dissolved, even separated, the matrix and surface layer of WCp/Fe-C composites were alloyed. |
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| Keywords: | centrifugal casting particle reinforced iron matrix composite mechanical property |
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