SiC 颗粒增强 Al-6wt%Cu 复合材料熔体流变行为的研究  

STUDY ON RHEOLOGICAL BEHAVIOUR OF Al6wt%Cu BASE SiC GRAIN COMPOSITE SLURRY

作　　者：齐秀梅[1,2] 马学著[1,2] 

机构地区：[1]哈尔滨工业大学 [2]哈尔滨铁路局科研所

出　　处：《航空材料学报》1997年第3期17-21,共5页Journal of Aeronautical Materials

摘　　要：对用搅拌法制备的Ａｌ－６ｗｔ％Ｃｕ基ＳｉＣ颗粒复合材料熔体的流变行为、流变模型、颗粒含量及温度对各流变参数的影响进行了研究。认为其流变模型为［Ｈ１］－［Ｓ｜Ｎ１］－［Ｈ２｜Ｎ２］。在不同温度下填加不同成分含量的ＳｉＣ颗粒，其流变参数值受到不同程度的影响。In this paper,the rheologicul behaviour of Al6wt%Cu based SiC grain composite in solidliquid coexistence zone is studied under the guidence of rheological theory.The composite is obtained by means of stirring.From the result of study,it is found that the rheological behaviour of the composite in solidliquid coexistence zone can be described by series of arrangement of Hooke model,Bigham model and Kelvin model.Rheological parameters,such sa G,η and τS can be estimated on the basis of the associated modelsl.As the result of the addition of SiC grains the rheological parameters increase to various degrees.At the temperature close to the liquidus,the addition of SiC grain increases the quantity of solid effectively and makes it difficult to be deformed.

关 键 词：复合材料 铝铜合金 半固态 流变行为 碳化硅 

分 类 号：TB333[一般工业技术—材料科学与工程]