Mechanical and Tribological Behaviour of Friction-Stir-Processed Al 6061 Aluminium Sheet Metal Reinforced with $${{\rm Al}_{2}{\rm O}_{3}/0.5\,{\rm Gr}}$$ Al 2 O 3 / 0.5 Gr Hybrid Surface Nanocomposite

Prakash, T.; Sivasankaran, S.; Sasikumar, P.

doi:10.1007/s13369-014-1518-4

Cited by 48 publications

(17 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A significant improvement of hardness with SiC reinforcement in Al matrix is observed by various researchers [12][13][14][15]. The higher hardness of the Al-SiC mono composite is mainly attributed to grain refinement during FSP and the homogeneous distribution of SiC particles in the Al matrix [13][14][15][16][17]. The friction stir processed composite shows a considerable increase in hardness with the increase in the percentage of reinforcement and finer size of particles [12,15].…”

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Study of Nano-Mechanical, Electrochemical and Raman Spectroscopic Behavior of Al6061-SiC-Graphite Hybrid Surface Composite Fabricated through Friction Stir Processing

Sharma

Sahoo

et al. 2018

J. Compos. Sci.

View full text Add to dashboard Cite

Aluminium-based hybrid metal grid composites (MMC) are extensively utilized in automobile applications (engine cylinders, pistons, etc.) as they exhibit a fantastic blend of properties. Here, a detailed study of nano-mechanical, electrochemical and Raman spectroscopic behavior of friction stir processed Al6061-SiC-graphite hybrid surface composite is presented. The effect of various tool rotational speeds was evaluated along with the monitoring of variation in axial force. Microstructural changes with various tool rotational speeds are studied by using a scanning electron microscope. Raman spectroscopy and X-Ray diffraction studies are used for the spectroscopic characterization of the fabricated hybrid and mono surface composites. Residual stresses and various crystal structure disorders of reinforcement result in the significant change in intensity and a considerable shift in Raman peak positions. The nano-mechanical behavior of the fabricated composite with various reinforcements and tool rotational speeds are analyzed by using nano-indentation. The nano-mechanical behavior of hybrid composite fabricated with an optimum set of processing parameters is superior to mono composites fabricated with the same processing parameters. Also, the electrochemical behavior of the fabricated composites is studied by linear potentiodynamic polarization test. The Al6061-SiC-graphite hybrid surface composite reveals excellent nano-mechanical and electrochemical behavior when fabricated with an optimum set of processing parameters. The tool rotational speed has a pronounced effect on the dispersion of agglomerates and grain refinement of the matrix material. The processing parameters extensively affect the Raman spectroscopic behavior of the hybrid composite. The hybrid surface composite shows better corrosion resistance than the mono composites when fabricated with an optimum set of processing parameters. Reduced intergranular as well as interfacial corrosion pits in hybrid composites increased its resistance to corrosion.

show abstract

Section: Introductionmentioning

confidence: 88%

“…Graphite reinforcement in Al matrix decreases the hardness, friction coefficient and coefficient of thermal expansion [24] while wear resistance increases considerably in comparison to the un-reinforced Al alloy [17,23,25,26]. The graphite provides a solid layer of lubricant between the composite and counter hard surface [27].…”

Section: Introductionmentioning

confidence: 99%

Study of Nano-Mechanical, Electrochemical and Raman Spectroscopic Behavior of Al6061-SiC-Graphite Hybrid Surface Composite Fabricated through Friction Stir Processing

Sharma

Sahoo

et al. 2018

J. Compos. Sci.

View full text Add to dashboard Cite

show abstract

“…The optical micrograph (Fig. 6a, b) shows that the grains were extensively refined due to dynamic recrystallization; severe plastic deformation caused by the FSP tool [16].…”

Section: Microstructure Studiesmentioning

confidence: 99%

“…Ni et al [15] fabricated NiTip/Al composites using FSP and achieved homogeneous distribution of NiTip in the Al matrix without interfacial reaction. Prakash et al [16] have fabricated AA6061-Al 2 O 3 /0.5Gr hybrid composite sheets by means of the FSP technique and have obtained higher hardness and minimum wear rate. The influence of different percentage of reinforcement particles on the microstructure, mechanical and tribological properties was investigated.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation for Multi-Response Optimization of Friction Stir Process Parameters During Fabrication of AA6061/B4Cp Composites

Puviyarasan

Kumar

2015

Arab J Sci Eng

View full text Add to dashboard Cite

In this work, friction stir processing (FSP) has been employed to fabricate metal matrix composites by incorporating B 4 C reinforcement particles into the aluminum AA6061 matrix. Taguchi experimental design, consisting of three factors and three levels, is used for minimizing the number of experiments. The factors considered are tool rotational speed, traverse feed and tool tilt angle. Desirability function analysis was employed to optimize the FSP parameters for simultaneous improvement of tensile strength and microhardness of the composites. The optimal parameters were found, and it was confirmed by experimental results. The composites fabricated using optimal process parameters exhibit a higher tensile strength (174 MPa) and microhardness (183 Hv). The tensile strength and microhardness values observed have been correlated with microstructural studies. Scanning electron micrograph revealed defect-free fabricated composites and uniform distribution of reinforcement particles in the stir zone.

show abstract

“…They concluded that wear rate decreased as weight percentage of Al 2 O 3 increased. Through SEM they studied the wear surfaces and observed wear tracks that are covered with the compact debris and delamination [26]. Jankauskas V. et al analysed the influence of welded layers composition on the abrasive wear mechanism of friction couples "hard layer-steel".…”

Section: Introductionmentioning

confidence: 99%

Wear characteristics and defects analysis of friction stir welded joint of aluminium alloy 6061-T6

Kumar

Chattopadhyaya

Hloch

et al. 2016

EiN

View full text Add to dashboard Cite

show abstract

Mechanical and Tribological Behaviour of Friction-Stir-Processed Al 6061 Aluminium Sheet Metal Reinforced with $${{\rm Al}_{2}{\rm O}_{3}/0.5\,{\rm Gr}}$$ Al 2 O 3 / 0.5 Gr Hybrid Surface Nanocomposite

Cited by 48 publications

References 26 publications

Study of Nano-Mechanical, Electrochemical and Raman Spectroscopic Behavior of Al6061-SiC-Graphite Hybrid Surface Composite Fabricated through Friction Stir Processing

Study of Nano-Mechanical, Electrochemical and Raman Spectroscopic Behavior of Al6061-SiC-Graphite Hybrid Surface Composite Fabricated through Friction Stir Processing

An Experimental Investigation for Multi-Response Optimization of Friction Stir Process Parameters During Fabrication of AA6061/B4Cp Composites

Wear characteristics and defects analysis of friction stir welded joint of aluminium alloy 6061-T6

Contact Info

Product

Resources

About