| Microstructure and wear properties of tungsten carbide reinforced steel matrix composites |
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| 作者姓名： | 尤显卿 宋雪峰 任昊 马建国 黄曼平 张成军 |
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| 作者单位： | [1]Institute of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China [2]Anhui Architectural Engineering College, Hefei 230022, China |
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| 基金项目： | Project（2003KJ016ZD） supported by the Science Research Foundation of Department of Education of Anhui Province, China .The authors would like to thank the supports of the Laboratory Center of Institute of Material Science and Engineering at Hefei University of Technology. |
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| 摘 要： | WC（27%） reinforced steel matrix composites were produced by using an electroslag melting casting technique. The microstructure of the material was characterized using scanning electron microscopy（SEM）, optical microscopy and X-ray diffraction （XRD）. Energy dispersive spectroscopy（EDS） and transmission electron microscopy were performed to investigate the interracial composition between WC particle and steel matrix. The results reveal that the WC particles are partially melted into the steel substrate. At the same time, a reaction layer was detected along with the periphery of WC particle, which significantly enhances the bonding strength of the interface. A slipping wear （high stress abrasion） test was utilized to understand the wear behavior of this material. Abrasive experiment displays a better wear resistance than unreinforced steel matrix when coarse WC particles are dispersed into it. The coarse particles provide greater wear-resistance than the fine particles and operatively takes on the most applied loads. Additionally, the large particles have not been peeled during the wear process for a long time, which indicates the effect of interfacial reaction on wear behavior at the ambient temperature. A double carbide （Fe, W）3C is detected in the interface zone between particles and matrices using transmission electron microscopy.
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| 关 键 词： | 碳化钨 金属基复合材料 显微结构 磨损性能 |
| 文章编号： | 1003-6326（2005）06-1333-08 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005-07-01 |
Microstructure and wear properties of tungsten carbide reinforced steel matrix composites |
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| YOU Xian-qing,SONG Xue-feng,REN Hao,MA Jian-guo,HUANG Man-ping,ZHANG Cheng-jun.Microstructure and wear properties of tungsten carbide reinforced steel matrix composites[J].Transactions of Nonferrous Metals Society of China,2005,15(6):1333-1340. |
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| Authors: | YOU Xian-qing SONG Xue-feng REN Hao MA Jian-guo HUANG Man-ping ZHANG Cheng-jun |
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| Abstract: | WC(27%) reinforced steel matrix composites were produced by using an electroslag melting casting technique. The microstructure of the material was characterized using scanning electron microscopy(SEM), optical microscopy and X-ray diffraction(XRD). Energy dispersive spectroscopy(EDS) and transmission electron micro-scopy were performed to investigate the interfacial composition between WC particle and steel matrix. The results reveal that the WC particles are partially melted into the steel substrate. At the same time, a reaction layer was detected along with the periphery of WC particle, which significantly enhances the bonding strength of the interface. A slipping wear (high stress abrasion) test was utilized to understand the wear behavior of this material. Abrasive experiment displays a better wear resistance than unreinforced steel matrix when coarse WC particles are dispersed into it. The coarse particles provide greater wear-resistance than the fine particles and operatively takes on the most applied loads. Additionally, the large particles have not been peeled during the wear process for a long time, which indicates the effect of interfacial reaction on wear behavior at the ambient temperature. A double carbide (Fe, W)3C is detected in the interface zone between particles and matrices using transmission electron microscopy. |
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| Keywords: | electroslag melting casting WC particle interface reaction zone wear |
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