| SiC颗粒增强铝基梯度复合材料的制备与性能 |
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| 引用本文： | 许富民,齐民,朱世杰,赵杰,王富岗,李守新,王中光.SiC颗粒增强铝基梯度复合材料的制备与性能[J].金属学报,2002,38(9):998-1001. |
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| 作者姓名： | 许富民 齐民 朱世杰 赵杰 王富岗 李守新 王中光 |
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| 作者单位： | 1. 大连理工大学材料工程系,大连,116024
2. 中国科学院金属研究所沈阳材料科学国家(联合)实验室,沈阳,110016 |
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| 摘 要： | 采用粉末冶金法制备了SiC颗粒增强铝基梯度复合材料（FGMMC），研究了该梯度复合材料的微观组织和力学性能，对FGMMC的显微组织观察表明，由于铝基体熔合成一体，因此层间没有明显的界面，具有基体的连续性，尽管基体是连续的，但是当疲劳裂纹从高SiC含量层向低SiC含量层扩展时，在过渡区发生延滞现象，通过断口和裂纹扩展路径的分析解释了此延滞现象。
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| 关 键 词： | 铝基梯度复合材料 性能 梯度功能材料 碳化硅颗粒 粉末冶金 疲劳裂纹扩展 |
| 文章编号： | 0412-1961(2002)09-0998-04 |
PROCESSING AND PROPERTIES OF FUNCTIONALLY GRADED ALUMINUM MATRIX COMPOSITES REINFORCED WITH SiC PARTICULATE |
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| XU Fumin,QI Min,ZHU Shijie,ZHAO Jie,WANG Fugang.PROCESSING AND PROPERTIES OF FUNCTIONALLY GRADED ALUMINUM MATRIX COMPOSITES REINFORCED WITH SiC PARTICULATE[J].Acta Metallurgica Sinica,2002,38(9):998-1001. |
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| Authors: | XU Fumin QI Min ZHU Shijie ZHAO Jie WANG Fugang |
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| Affiliation: | XU Fumin,QI Min,ZHU Shijie,ZHAO Jie,WANG FugangDepartment of Materials Engineering,Dalian University of Technology,Dalian 116024LI Shouxin,WANG ZhongguangShenyang National Laboratory for Materials Science,Institute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | Functionally graded aluminum matrix composites (FGMMCs) reinforced with SiC particulate were fabricated by powder metallurgy. The microstructure and mechanical properties of the FGMMC were studied. There is no obvious interface between different layers, since Al matrix was melted together. However, the retardation of fatigue crack growth occurred from the region with high volume fraction of SiC to the low SiC regions. The retardation was explained by the analysis and observation of fracture surface and crack growth path. |
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| Keywords: | functionally graded aluminum matrix composite SiC particulate powder metallurgy fatigue crack growth |
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