搅拌对熔铸-原位反应TiB_2/Al和TiC/Al复合材料微观组织的影响  

Influence of stirring technique on microstructure of TiB_2 and tic particulate reinforced aluminum matrix composites fabricated by melt in situ reaction

作　　者：杨滨[1] 王锋[1] 崔华[1] 段先进[1] 张济山[1] 

机构地区：[1]北京科技大学新金属材料国家重点实验室,北京100083

出　　处：《航空材料学报》1999年第4期16-16,共1页Journal of Aeronautical Materials

基　　金：国家自然科学基金!(59774032);中国博士后科学基金

摘　　要：研究、开发了一种熔铸－ 原位反应颗粒增强铝基复合材料制备技术，探讨了搅拌工艺对３ｖｏｌ％ ＴｉＢ２ 和３ｖｏｌ％ ＴｉＣ颗粒增强铝基复合材料微观组织的影响。结果表明，采用圆盘状叶片的搅拌装置对获得颗粒均匀分布、组织致密的铝基复合材料十分有利。A novel technique in which 3vol%TiB 2 and 3vol%TiC particulate-reinforced aluminum matrix composites prepared by melt in-situ reaction was introduced. The influence of a mechanical stirring technique on the microstructure of the composites was studied. It was found that a mechanical stirring is necessary for fabricating TiB 2/Al and TiC/Al composites fabricated by this technique. By taking advantage of a novel disc vane stirrer, the 3vol%TiB 2/Al and 3vol%TiC/Al composites with homogeneous particulate distribution and with sound structure have been produced.

关 键 词：搅拌 原位反应 铝基复合材料 微观组织 复合材料 

分 类 号：TG250.2[金属学及工艺—铸造] TB331[一般工业技术—材料科学与工程]