ZA22/Al_2O_3(F)复合材料室温拉伸强度的模拟研究  

SIMULATION OF ROOM-TEMPERATURE STRENGTH OF ZA22/Al_20_3(F) COMPOSITES

作　　者：陈凯[1] 俞蒙槐[1] 胡上序[1] 于思荣[2] 何镇明[2] 

机构地区：[1]浙江大学,杭州310027 [2]吉林工业大学,长春130025

出　　处：《金属学报》1997年第4期437-442,共6页Acta Metallurgica Sinica

基　　金：国家自然科学基金

摘　　要：采用挤压铸造法制备ZA22／Al2O3（F）复合材料，分别采用强度混合准则（ROM）和神经网络模型研究了含Ce与不含Ce的ZA22／Al2O3（F）室温拉伸强度随短纤维体积分数Vf的变化情况，结果表明：强度混合准则能有效地预测复合材料强度的两个重要体积分数即最小体积分数Vmin和临界体积分数Vcrit；而神经网络模型不仅能较准确地预测Vmin和Vcrit，并且能够较好地描述复合材料强度随Vf的变化规律．As to the ZA22/Al2O3(F) composites made by squeeze casting, the room-temperature strengths were studied by the computer simulation with ROM rule and neural network model alternatively. The results show that ROM rule can predict two important parameters of composites strength e.g. Vmin and Vcrit effectively. Compared with ROM rule, neural network model can not only predict the Vmin and Vcrit pretty well, but also describe the strength variation with the change of Vf.

关 键 词：金属基复合材料 锌铝合金 拉伸强度 

分 类 号：TG146.13[一般工业技术—材料科学与工程]