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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第11卷    第z2期    总第100期    2001年11月

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文章编号:1004-0609(2001)S2-0086-05
Al2O3-SiO2/ZL108复合材料的高温磨损性能
彭开萍, 陈文哲,   钱匡武

(福州大学 材料科学与工程学院,福州 350002)

摘 要: 研究了压力铸造法研制的硅酸铝纤维增强ZL108复合材料的机械性能。结果表明:复合材料在高温和室温下都具有良好的耐磨性,温度小于300℃时,复合材料仍具有较好的耐磨性,而基体合金却严重粘着;而且复合材料的抗压屈服强度、抗弯强度及显微硬度比基体材料ZL108合金的强度高。磨损面的SEM电镜观察表明:复合材料中纤维的存在起到抑制犁沟延伸与扩展的作用,从而提高了耐磨性。

 

关键字: 金属基复合材料;硅酸铝纤维

High-temperature wear resistance of
Al2O3-SiO2/ZL108 composites
PENG Kai-ping,  CHEN Wen-zhe,  QIAN Kuang-wu

Department of Material Science and Engineering of Fuzhou University,
Fuzhou 350002, P.R.China

Abstract:High-temperature wear resistance of Al2O3-SiO2/ZL108 composites preparedby squeeze casting was investigated. The results show that the composites exhibit excellent wear resistance at high temperature and room temperature. Particularly at 300℃,the composites still show good wear resistance while the severe adhesion happened in the ZL108 alloy. Moreover, the yield strength,bending strength and micro-hardness of the composite were higher than those of ZL108 alloy. The worn surfaces were examined through a scanning electron microscope. The results also show that the fiber in the composites put pack formation of the groove, which improved the wear resistance of the composites. The effect of microstructure on the mechanical properties and the strengthening mechanism in Al2O3/ZL108 composites were discussed.

 

Key words:   metal-matrix composites;  Al2O3-SiO2 fiber

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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