EAN: 9783960672111

CHARACTERIZATION OF MICROSTRUCTURE AND MECHANIC...

The need for low weight and high performance structural materials has revolutionized the
technology and has led to the emergence of new processes and methodologies. Friction stir
processing (FSP)  based on the principle of friction stir welding  is an emerging solid state
metal working process. This technique causes intense plastic deformation and high strain rates
in the processed material  resulting in precise control of the microstructure through material
mixing and densification. FSP process has been successfully used for achieving significant
grain refinement and enhancement of surface properties. The present work focuses on the study
of behavior of Aluminium cast alloy (Al-6063) processed by the friction stir processing
technique. Samples of FSP-ed aluminium were examined and their microstructures  microhardness 
Rockwell hardnesss and impact strength were studied and compared with base metal Al-6063.
Hardness tester was employed to evaluate the interfacial bonding between the particles and
matrix by indenting the hardness with the constant load and constant time. Impact test was
employed to know the Impact Strength of samples against the Impact of Hammer.

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