Studies on Mechanical and Wear Properties of Al6061/Beryl Composites

Reddappa, Reddappa Hosur; Suresh, K.R.; Niranjan, H.B.; Satyanarayana, K. G.

doi:10.4236/jmmce.2012.117056

Cited by 19 publications

(9 citation statements)

References 14 publications

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“…As reported [36], Al-Si-Mg composites containing Beryl particles in the range 2 to 10 wt.% have shown hardness increase with increase in Beryl concentration from 0 to 6 wt. % Further, it is reported [36] that the tensile strength has also increased for the Beryl addition up to 6 wt.%, Likewise, many researches have conducted and reported [37] mechanical property evaluations especially hardness and UTS on Al6061 alloy with Beryl as reinforcement particles and obtained increase in hardness and tensile strength with increase in beryl concentration. Thus, all these research contributions [36-37] have given valuable support to the present ndings for getting enhanced hardness as well as UTS in Al/Mg alloys/composites containing other types of reinforcements at varied levels.…”

Section: Effect Of Ecap Process On the Tensile Properties And Grain Sizementioning

confidence: 99%

Effect of Severe Plastic Deformation Involving Ecap of Aluminum 2024 Alloy Beryl Composites on the Mechanical Properties

Sampthakumar²

2023

Preprint

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The adoption of Aluminum Metal Matrix composites has gained popularity and widespread application in view of their light weight and superior mechanical strength compared to the un-reinforced alloy system. Much improved characteristics have been derived based on the adoption of secondary processes such as rolling, forming, drawing and plastic deformation. In this context, the preparation of Al2024 alloy, containing Beryl particles as reinforcement is envisaged for getting better properties in terms of strength and hardness for structural use in aerospace industry. Further enhancement in properties to strengthen the alloy may be possible by subjecting it to severe plastic deformation, especially Equal Channel Angular Pressing (ECAP) process. The present work focuses on developing Al 2024 alloy composites containing Beryl particles at 6 wt.%, through stir cast method. This is followed by ECAP process carried out in the annealed condition. This facility has been designed and developed in house. Following this, the mechanical properties, involving tensile strength, % elongation & hardness have been evaluated for the ECAP processed Al2024 Beryl samples and the values thus obtained are compared with those derived on samples without Beryl additions. The microstructures of the samples, for key stages of the work, have been recorded. Further, the fracture morphology of ECAP processed samples have been examined and analyzed using SEM/EDAX and correlated with the tensile strength data. The ECAP with pass II processed samples have shown higher tensile strength and hardness as well as good grain refinement in the matrix compared to annealed Al alloy sample.

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Section: Effect Of Ecap Process On the Tensile Properties And Grain Sizementioning

confidence: 99%

Effect of Severe Plastic Deformation Involving Ecap of Aluminum 2024 Alloy Beryl Composites on the Mechanical Properties

Sampthakumar²

2023

Preprint

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“…Compared to alternative fabrication methods, a traditional stir casting procedure is the best method for processing AMCs [7][8][9][10][11][12][13] . In order to remove the trapped gases inside the melt, C2Cl6 -solid hexachloroethane was added.…”

Section: Casting and Testingmentioning

confidence: 99%

“…The metal bonding process does not involve positively or negatively charged ions. Ceramics, on the other hand, form ionic or covalent connections that prevent dislocations and the slide from moving [11][12][13][14][15] . The difficulty of slip or alternate motion is one of the causes for ceramics hardness and brittleness.…”

Section: Introductionmentioning

confidence: 99%

Air Jet Erosion studies on Aluminum - Red Mud Composites using Taguchi Design.

Anil¹,

Kumaraswamy²,

Reddy³

et al. 2023

Evergreen

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Due to its numerous uses in the industries of aerospace, defense, automotive, and marine, among others, metal matrix composites (MMCs) are currently receiving a lot of attention in the world of materials., the present work focuses on characteristics of erosive behaviour of Al-Red mud (Rm) reinforced composites developed by stir casting and the effect of red mud in the aluminum metal matrix composites in composition of 2% wt., 4% wt., 6% wt., 8% wt. which is subjected to various tests to study their wear properties in comparison to base alloy. Experiments are conducted under laboratory conditions to assess the air jet erosion characteristics of the red mud reinforced aluminum composites according to ASTM G76 standard. Finally, the surface of the wornout sample is studied under the Scanning Electron Microscope, to get an idea about the effect of red mud reinforcement on erosion behaviour of the composite. The collected data was analyzed and visualized in Minitab V19 software. To find SN plots, Taguchi analysis was performed on the collected data. ANOVA and regression analysis were both used to determine the associations between the many parameters that were chosen. Form the overall analysis Al-composites consist 8% of RMp shows the optimum erosion at SOD of 30mm at 15 and 90 degree of impact angle for 3mins of time.

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“…Based on the forces applied to the piston due to the friction of the ring, the fretting forces changed between 10 and 20 N based on the literature [13 , 14] . These values have also been used for aluminum alloy in friction wear tests [15 , 16] and wear tests [17] , [18] , [19] .…”

Section: Materials and Experimental Designmentioning

confidence: 99%