Microstructure and properties of vacuum counter-pressure cast aluminum alloy

作     者：YAN Qing-song YU Huan WEI Bo-kang XU Zhi-feng CAI Chang-chun WAN Hong 

作者机构：Nanchang Institute of Aeronautical Technology Nanchang 330034diangxi P. R. China Huazhong University of Science and Technology Wuhan 430074 Hubei P. R. China Nanchang Institute of Aeronautical Technology Nanchang 330034diangxi P. R. China Huazhong University of Science and Technology Wuhan 430074 Hubei P. R. China 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2006年第3卷第2期

页      面：113-116页

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：The paper is supported by the Commission of Science Technol-ogy and Industry for National Defense fund of China  Foundationitem No.:BB200300088 

主　　题：vacuum counter-pressure casting aluminum alloy microstructure properties 

摘      要：The microstructure and properties of vacuum counter-pressure cast aluminum alloy were studied. Results indicated that under the condition of vacuum counter-pressure, liquid melts fill mould cavity under the vacuum and crystallize under high pressure which have very good effect on nucleation and solidification feeding. Compared with gravity casting, the microstructure of vacuum counter-pressure cast aluminum alloy is much finer and more uniformly distributed. Mechanical properties of vacuum counter-pressure cast aluminum alloy are improved significantly.