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标题：Fabrication of AA6016/ (Al2O3+AlN) Hybrid Surface Composite Using Friction Stir Processing
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作者：Keerthivel Rajesh.E ; Prem Kumar.N ; Srinath Kumar.S 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：TAPSA
页码：346
出版社：S&S Publications
摘要：Friction Stir Processing (FSP) is a new solid state processing technique based on the Principle ofFriction Stir Welding (FSW) which is used widespread now days for the fabrication of surface composite in metals due toits superior characteristics. Composites are engineered materials made from two or more constituent materials withsignificantly different physical or chemical properties and which remain separate and distinct on a macroscopic levelwithin the finished structure. The reinforcements impart their special mechanical and physical properties to enhance thematrix properties. Since there is no melting during FSP, problems associated with liquid-solid reactions betweenreinforcing hard particles and liquid aluminium is eliminated. This makes the FSP a potential process for fabricating Al-MMC’s.Alumina and Aluminium Nitride powders were mixed in different proportions and packed in the groove made inthe aluminium plate. High carbon high chromium tool having cylindrical pin with threaded profile was designed andfabricated. The FSP parameters considered were rotational speed, axial load and tool travelling speed. The plates werethen processed and the specimens were prepared from FSPed plates according to the metallurgical standards. Themetallurgical properties of processed AMMCs were estimated by conducting optical Microscopy. Microhardness of thespecimen is tested using Vickers’s Hardness Machine. Thus the effect of varying the composition of reinforcementmaterial on hardness was studied.
关键词：Friction stir processing ;Hybrid surface composite; Aluminium alloy