Journal
MATERIALS & DESIGN
Volume 57, Issue -, Pages 1-9Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.12.008
Keywords
Metal matrix composites; Friction stir processing; Microstructure; Tensile properties; Ductility
Categories
Funding
- University Grants Commission (UGC)
Ask authors/readers for more resources
Stir casted LM25AA-5% SiC Metal Matrix Composites (MMCs) consists of cast product dendrites and large agglomerated reinforced particle. The agglomeration of SiC creates difference in properties along the composite system. During loading it creates different stress field which causes failures in the composite material. Friction Stir Processing (FSP) is a novel processing technique facilitate by the frictional heat generation between the tool and the workpiece. FSP can triumph over the poor properties due to large sized and unevenly distributed SiC particle in the Al matrix. In this investigation, five different shoulder diameters to pin diameter (D/d) ratio is used for processing the composite material. Tensile properties and hardness of the friction stir processed material were evaluated and correlated with the macro and microstructure signatures. The characterization of processed composite material is carried out using optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX) and X-ray diffraction technique (XRD). The effect of different D/d ratio (2, 2.5, 3, 3.5, 4) on microstructural formation, particle size and distribution in the matrix were analysed and found that the D/d ratio of 3 yielded higher tensile and hardness properties. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available