杨树青,刘慧敏,卢海军,侯小虎

• 1:内蒙古工业大学材料科学与工程学院
• 2:内蒙古公路工程局

摘要(Abstract)：

采用原位反应近液相线铸造方法制备含有少量原位TiC颗粒的7075铝基复合材料,通过透射电镜观察复合材料中的原位TiC颗粒的形貌,并研究原位TiC颗粒与7075Al基体之间的界面微观结构。结果表明,原位TiC颗粒尺寸分布于亚微米级,形貌呈近球形,在复合材料界面处7075Al基体与原位TiC颗粒具有Al(200)//TiC(200)、Al基体(216)∥TiC(111)的晶体学位向关系并形成共格界面,界面干净,无任何反应物,Al基体的(200)晶面优先沿原位TiC颗粒的(200)晶面生长,其(216)晶面优先沿原位TiC颗粒的(111)晶面生长。

关键词(KeyWords)： 界面结构;近液相线铸造;原位TiC颗粒;7075Al基复合材料

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自然科学基金项目(20080404ZD17)

作者(Author): 杨树青,刘慧敏,卢海军,侯小虎

DOI: 10.13289/j.issn.1009-6264.2012.s1.006

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