| Effect of Rare Earths on Microstructure and Properties of TiC-based Cermet／Cu Alloy Composite Wear Resistant Materials |
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| 引用本文： | 王新洪,邹增大. Effect of Rare Earths on Microstructure and Properties of TiC-based Cermet／Cu Alloy Composite Wear Resistant Materials[J]. 中国稀土学报(英文版), 2003, 21(3): 375-379 |
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| 作者姓名： | 王新洪 邹增大 |
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| 作者单位： | SchoolofMaterialsScienceandEngineering,ShandongUniversity,Jinan250061,China |
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| 基金项目： | ProjectsupportedbytheNaturalScienceFoundationofShandongProvince (Z2 0 0 0F0 2 ) |
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| 摘 要： | The effect of rare earth (RE) oxide on the microstructure and properties of TiC-based cermet/Cu alloy composite hardfacing materials was investigated by using scanning electron microscope (SEM), transmission electron microscope(TEM), impact test and wear test. The mechanism of RE oxide for improving the phase structure and the impact toughness was also discussed. The experimental results indicate that the microstructure of the matrix can be refined, and the micro- porous defects can be eliminated by adding RE oxide into the composite materials. The polycrystalline and amorphous phase structure is formed at the interface of cermet and matrix metal. The formed structure enhances the conjoint strength of interface. The frictional wear resistance can be improved obviously, although the microhardncss of the matrix metal can not be effectively increased by adding RE oxide.
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| 关 键 词： | 金属材料 碳化钛基金属陶瓷 微观结构 稀土 机械性能 磨损阻力 铜合金 |
Effect of Rare Earths on Microstructure and Properties of TiC-based Cermet/Cu Alloy Composite Wear Resistant Materials |
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| Wang Xinhong ,Zou Zengda. Effect of Rare Earths on Microstructure and Properties of TiC-based Cermet/Cu Alloy Composite Wear Resistant Materials[J]. Journal of Rare Earths, 2003, 21(3): 375-379 |
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| Authors: | Wang Xinhong Zou Zengda |
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| Affiliation: | Wang Xinhong *,Zou Zengda |
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| Abstract: | The effect of rare earth (RE) oxide on the microstructure and properties of TiC based cermet/Cu alloy composite hardfacing materials was investigated by using scanning electron microscope (SEM), transmission electron microscope (TEM), impact test and wear test. The mechanism of RE oxide for improving the phase structure and the impact toughness was also discussed. The experimental results indicate that the microstructure of the matrix can be refined, and the micro-porous defects can be eliminated by adding RE oxide into the composite materials. The polycrystalline and amorphous phase structure is formed at the interface of cermet and matrix metal. The formed structure enhances the conjoint strength of interface. The frictional wear resistance can be improved obviously, although the microhardness of the matrix metal can not be effectively increased by adding RE oxide. |
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| Keywords: | metal materials TiC based cermet microstructure mechanical properties wear resistance rare earths |
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