原位TiC颗粒增强7075Al基复合材料的制备及微观组织  

Fabrication and microstructure of 7075Al composites strengthened by in-situ TiC particulates

作　　者：张复懿[1] 刘慧敏[1,2] 刘丽[1] 

机构地区：[1]内蒙古工业大学材料与工程学院,内蒙古呼和浩特010051 [2]内蒙古新材料工程技术中心,内蒙古呼和浩特010051

出　　处：《内蒙古科技大学学报》2010年第2期112-115,共4页Journal of Inner Mongolia University of Science and Technology

基　　金：内蒙古自然科学基金资助项目(20080404zd17)

摘　　要：采用原位反应近液相线铸造方法成功制备出4.4%(质量分数)TiC颗粒增强7075 Al基复合材料。对原位反应过程进行了热力学与动力学分析.通过XRD分析及SEM观察显示,原位生成的TiC颗粒与基体润湿良好,且弥散细小均布于7075基体中,晶界上无明显的偏聚.The 4.4% TiCp/7075 Al composites were prepared by in-situ reactive near-liquid＇s cast.Thermodynamic analysis and dynamic analysis of the in-situ reactions were carried out.It is observed by using XRD and SEM that the in-situ TiC particles not only present good cohesion to the matrix,but also diffuse homogeneously in 7075 matrix.Besides,there is no great segregation on the interface.

关 键 词：TIC颗粒 原位反应近液相线铸造 TiCp/7075Al基复合材料 

分 类 号：TG146.21[一般工业技术—材料科学与工程]