Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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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)S2-0064-04
液-固挤压SiCp/LY12复合材料的组织与性能
齐乐华, 李贺军, 孙乐民, 史忠科

(西北工业大学 机械工程系, 西安 710072)

摘 要: 探讨了液-固挤压SiCp/LY12复合材料的组织与性能特征及其相互之间的关系。研究表明,其基体组织晶粒细小,SiC颗粒基本呈均匀随机分布,无明显堆积及脱粘现象,且与基体结合良好;抗拉强度比基体材料提高20%~32%。从而为颗粒增强金属基复合材料管、棒材的制备提供了一种减少工序、节能节材的可行方法。

 

关键字:   液-固挤压; 显微组织; SiCp/LY12复合材料

Microstructure and properties of SiCp/LY12 composite
prepared by liquid-solid extrusion process
QI Le-hua, LI He-jun, SUN Le-min, SHI Zhong-ke

Department of Mechanical Engineering, 
Northwestern Polytechnical University,Xi′an 710072, P.R.China

Abstract:The characteristics of microstructure and properties of SiCp/LY12 composite prepared by liquid-solid extrusion process and their mutual relation werediscussed. The results show that the grains of matrix are refined and SiC particles distribute evenly and randomly. There exists no collection of SiC particles. The bonding among the particles and matrix is strong. Compared with the matrix alloy,  the tensile strength increases by 20%~32%. These results prove that the liquid-solid extrusion process is an effective method for manufacturing tube and bar products of metal matrix composites reinforced by particles

 

Key words: liquid-solid extrusion; microstructure; SiCp/LY12 composite 

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

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

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