INTERFACIAL REACTION IN GRAPHITE FIBRES REINFORCED Al ALLOY COMPOSITES

Acta Metall Sin

1994, Vol. 30

Issue (20): 379-384 DOI:

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INTERFACIAL REACTION IN GRAPHITE FIBRES REINFORCED Al ALLOY COMPOSITES

YANG Haining; GU Mingyuan;JIANG Weiji;ZHANG Guoding(Shanghai Jiaotong University)

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YANG Haining; GU Mingyuan;JIANG Weiji;ZHANG Guoding(Shanghai Jiaotong University). INTERFACIAL REACTION IN GRAPHITE FIBRES REINFORCED Al ALLOY COMPOSITES. Acta Metall Sin, 1994, 30(20): 379-384.

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Abstract Comparative study under TEM was carried out of the interfacial microstructure in the long graphite fibres reinforced Al-0.35at.-%Ti alloy composites prepared under various conditions. The growth of interfacial reaction product,i.e., Al_4.C_3, was observed under high resolution electron microscope. Results show that the interfaces between the top of Al_4 C_3 and Al alloy matrix are rough and Al_4C_3 grows up continuously, while between the (000l) plane of Al_4C_3 and Al alloy matrix are smooth and Al_4C3 grows up along surfaces. These interfaces have different relative growth rates under differnt growth driving forces.Thus,the morphologies of Al_4C_3 in the composites differ upon the manufacturing parameters were changed. It seems that a proper reduction of volume fraction of graphite fibres will be available to improve further the properties of compsite.

Key words: composite interfacial reaction Al_4C_3 graphite fibre

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I20/379

1KhanIH．Metalltrans,1976;7A:12812YangM,scottVD．JMaterSci,1991;26:16093MarcusHL．AD-A127590,19924MondolfeLF．AluminumAlloys:Structure&Properties．London:Butteeworth,1976:2365闵乃本;晶体生长的物理基础,上海:上海科学技术出版社,1983:4346JeffreyGA,VictorYWu,ActaCrystallogr,1963;16:5597陈荣,上海交通大学博士学位论文,19898BayhaTD,WawnerFE．MetallTrans,1992;23A:1607

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