Studies on Tribological Characteristics of Centrifugally Cast SiCp-Reinforced Functionally Graded A319 Aluminium Matrix Composites

Jayakumar, E.; Praveen, A. Paul; Rajan, T.P.D.; Pai, B.C.

doi:10.1007/s12666-018-1442-5

Cited by 43 publications

(14 citation statements)

References 21 publications

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“…It is clear that most research work focused on experimental mechanical characterization (esp. tensile and hardness) [33], wear rate prediction [34] or thermal properties evaluation [35]. Very few research groups are considering numerical simulation of FGMs.…”

Section: Fgm Production Methodsmentioning

confidence: 99%

Functionally graded materials classifications and development trends from industrial point of view

2019

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Over the last few years, many classifications have been proposed for functionally graded materials (FGMs). In this Paper, critical review of different available classifications for FGM based on their physical, structural and manufacturing characteristics are presented. Advantages and limitations of each fabrication method for use in a given application is correspondingly considered. In addition, new classifications based on gradation control and accuracy, residual stresses, specific energy consumption, environmental impact evaluated throughout the complete life cycle and manufacturing costs are proposed. These classifications mainly reflect the needs of both FGM designers and industrial manufacturers. Based upon the presented classifications and the recent advances in analysis and production techniques, new major directions for FGMs research are proposed.

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Section: Fgm Production Methodsmentioning

confidence: 99%

Functionally graded materials classifications and development trends from industrial point of view

2019

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“…In as-cast alloy, hardness values decrease from outer region to inner region along the radial direction due to the controlled cooling conditions at the outer periphery and the uneven cooling conditions at the inner periphery [3]. The microstructure of outer layer of FGM (Fig.…”

Section: Hardness Studymentioning

confidence: 99%

“…The design of alloy components are improved by integrating and processing the concept of FGMs, hence producing commercial materials with tailored properties [1]. Centrifugal casting, a simple pressure casting method is selected among different FGM processing methods, in which the force of gravity is employed through the spinning of mould, to form cylindrical bulk FGM components having dense and fine grained structure [2,3]. Due to the influence of centrifugal action upon the molten metal, minimal cast defects are observed in FGMs, when compared to gravity casts [4].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Mechanical and Reciprocating Wear Behavior of Functionally Graded A359 Aluminium Alloy Through Heat Treatment

Radhika¹,

Jojith²,

Thiagarajan³

et al. 2020

Tribol. Ind.

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This paper discusses on improving the mechanical and tribological characteristics of homogeneous and functionally graded A359 aluminium alloy processed through gravity and centrifugal casting respectively, through T6 heat treatment. Microstructural observation confirmed uniform and gradient structure for homogeneous and functionally graded casts respectively. Maximum micro-hardness values were observed at 10 hours aging time followed by a significant drop due to over aging. After T6 treatment, 38 and 40 % improvement in micro-hardness, 11 and 13.4 % improvement in tensile strength was observed on comparing as-cast homogeneous and functionally graded material respectively. Wear evaluation was performed for all the regions of as-cast and heat treated functionally graded material and homogeneous casts by varying load (15-35 N) and sliding distance (500-1500 m). Maximum wear resistance was observed for heat treated functionally graded material (outer) under the effect of sliding distance. Wear analysis revealed predominant delamination wear mechanism on worn surfaces.

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“…[7][8][9]. Ceramic particulates filled aluminium metal matrix composites reveals greater wear resistance capacity compared to base alloys [10]. Reinforcement gives preferred strength to composite in a superior direction.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistivity of Al7075/6wt.%SiC Composite by Using Grey-Fuzzy Optimization Technique

Bhowmik¹,

Biswas²

2021

Silicon

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Application of SiC particulate reinforcement impact greatly for making aluminium matrix composite because of its superb heat conductivity, oxidation stability and highly resistance to mechanical erosion. Present work based on dry sliding wear analysis of Al7075/6wt.%SiC composite fabricated by liquid state stir casting method. To acquire a productive wear rate, three major process parameters viz. load, sliding speed and covering sliding distance were compared four different levels. ANOVA analysis showed that the probability rate of load is less than 0.05 that revealed their significant factor. From the study, the highest GRG and GFG values are found 0.914 and 0.854 respectively for the optimal operating parameters of 10 Newton load, 2 metre/second sliding speed and 500 metre sliding distance. Finally, it is revealed that the grey-fuzzy technique effectively authenticate the decision making of wear performance characteristics rather than a plain grey relational grade.

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Studies on Tribological Characteristics of Centrifugally Cast SiCp-Reinforced Functionally Graded A319 Aluminium Matrix Composites

Cited by 43 publications

References 21 publications

Functionally graded materials classifications and development trends from industrial point of view

Functionally graded materials classifications and development trends from industrial point of view

Enhancing the Mechanical and Reciprocating Wear Behavior of Functionally Graded A359 Aluminium Alloy Through Heat Treatment

Wear Resistivity of Al7075/6wt.%SiC Composite by Using Grey-Fuzzy Optimization Technique

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