挤压铸造Al_2O_2f／ZA22过程的预制块受压行为分析  

Mechanical Behaviour Analysis of Preform in the Process of Squeeze Casting Al_2O3f/ZA22 Composites

作　　者：陈凯[1] 俞蒙槐[1] 于思荣[1] 何镇明 

机构地区：[1]浙江大学,吉林工业大学

出　　处：《材料科学与工艺》1996年第4期98-101,共4页Materials Science and Technology

基　　金：国家自然科学基金

摘　　要：采用准三维预制块模型对Ａｌ_２Ｏ_２短纤维预制块在挤压铸造过程中的受压力学行为进行了分析。结果表明，纤维预制块的变形主要取决于连接纤维，连接纤维比平面纤维更容易断裂，当平面纤维断裂时，整个预制块将完全破坏。The mechanical behaviour of Al_2O_3 short fibre preform in the process of squeeze casting was analyzed using pseeudo 3-D preform model.The results showed that the deformation of preform to a compressive load was mainly determined to crosslinking fibre.Compared with in-plane fibre,crosslinking fibre was much easier to fracture.The whole preform would be damaged as the in-plane fibre fracture appeared.

关 键 词：纤维预制块 力学行为 挤压 铸造 

分 类 号：TG213[金属学及工艺—铸造]