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Fabrication and characterization of friction stir processed Al 6061 reinforced with TiB2-Al2O3

Ch. Mohana Rao (Department of Mechanical Engineering, JNTUK, Kakinada, India)
K. Mallikarjuna Rao (Department of Mechanical Engineering, JNTUK, Kakinada, India)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 21 May 2020

Issue publication date: 10 May 2021




The objective of the paper is to evaluate the fabrication process and to study the influence of process parameters of friction stir processing of 6061-TiB2-Al2O3 Aluminum alloy surface composite on microhardness tensile strength, and microstructure.


Friction stir processing method is used for attaining the desired mechanical properties, and selectively processed reinforcements to fabricate the samples. The Taguchi technique was used to optimize rotational speed, travel speed and volume percentage of reinforcement particles to enhance the mechanical properties of 6061-TiB2-Al2O3 Aluminum alloy composite.


The fabrication of surface composites through FSP allows new inventions in terms of material with enhanced surface layers without changing the base metal.

Practical implications

To examine the behavior of the surface of the composites in the different zones, the practical implication consists of the use of different characterization techniques like optical microscopy and scanning microscopy for microstructural behavior and the measurement of hardness and tensile tests for mechanical behavior.


The research work consists of tool design and process parameters, which can affect the final product (microstructural changes), and the performance of the modified surface layer behavior was studied and presented.



Rao, C.M. and Rao, K.M. (2021), "Fabrication and characterization of friction stir processed Al 6061 reinforced with TiB2-Al2O3", International Journal of Structural Integrity, Vol. 12 No. 3, pp. 378-387.



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