Production and characterization of AA6061–B4C stir cast composite

Kalaiselvan, K.; Murugan, N.; Parameswaran, Siva

doi:10.1016/j.matdes.2011.03.018

Cited by 359 publications

(161 citation statements)

References 17 publications

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“…To stop the oxidation completely, an inert environment has to be created, which involves lots of complications. Therefore adding wetting agents such as TiK 2 F 6 , borax and magnesium in the melt is an alternate solution of this problem and widely used for the fabrication of AMCs and HAMCs [9,10]. Apart from the oxidation problem, achieving homogeneous distribution of particles in the melt is another major problem frequently faced in stir casting process, which is controlled by stirring parameters.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Sahu¹,

Sahu²

2018

Advanced Casting Technologies

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Aluminum matrix composites (AMCs) and hybrid aluminum matrix composites (HAMCs) becomes choice for automobile and aerospace industries due to its tunable mechanical properties such as very high strength to weight ratio, superior wear resistance, greater stiffness, better fatigue resistance, controlled co-efficient of thermal expansion and good stability at elevated temperature. Stir casting is an appropriate method for composite fabrication and widely used industrial fabrication of AMCs and HAMCs due to flexibility, cost-effectiveness and best suitable for mass production. Distribution of the reinforcement particles in the final prepared composite regulates the anticipated properties of AMCs and HAMCs. However, distribution of reinforcements is governed by stirring process parameters. The study of effect of stirring parameters in the particle distribution and optimal selection of these is still a challenge for the ever-growing industries and research. In this chapter accurate and precise attempts were taken to explore the effect of stirring parameters in stir casting process rigorously. Further, Optimal values of stirring parameters were suggested which may be helpful for the researchers for the development of AMCs and HAMCs. This chapter may also provide a better vision towards the selection of stirring parameters for industrial production of AMCs and HAMCs comprising superior mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Sahu¹,

Sahu²

2018

Advanced Casting Technologies

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“…% fraction of particles reinforcement [7][8]. Many aluminum matrix composites with various matrix compositions, such as AA6061 [9], AA6063 [10], Al-Si-Fe alloys [11], AA1070 and AA6063 [12], AA356 [13], AA6061 [14] have been produced successfully using stir casting technique. A homogeneous distribution and strong bonding of secondary particles in the composite matrix is critical for executing a high strength.…”

Section: A Stir Castingmentioning

confidence: 99%

“…7, 8, 9, 10). Kalaiselvan et al [14] fabricated AA6061-T6/B 4 C aluminum metal matrix composite by enhanced stir casting route by the inclusion of K 2 TiF 6 as flux into the molten melt. The authors analyzed the homogeneous distribution of B 4 C particles in the metal matrix phase.…”

Section: A Mechanical and Microstructural Examinationmentioning

confidence: 99%

Mechanical and Metallurgical Examinations of Stir Cast Aluminum Matrix Composites: A Review Study

Kaushik¹,

Singhaal²

2017

IJET

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Abstract--The drift of research work from monolithic aluminum alloy to composite materials like Metal Matrix Composites (MMC's) is due to the world-wide proviso for economical, high working performance and superior quality materials. Metal matrix composites especially aluminum matrix composites (AMC's) due to their excellent strength with respect to their weight, superior wear resistance, economical and high corrosion resistance are extensively produced and utilized in several applications like, architectural components, structural applications, aerospace, automobile industry, ship building and many sports items and electrical and electronic components. The reinforcements like SiC, B 4 C, Al 2 O 3 , TiB 2 , Red mud, Graphite, Fly ash, and Coconut ash etc. can be easily incorporated as reinforcement agents in the molten melt by employing the economical and widely used stir casting technique, which improves strength, stiffness, fatigue, hardness, wear and creep properties of the AMCs. This paper gives an overview of mechanical, microstructural and wear performances of aluminum centered metal matrix composites produced by stir casting process reinforced with single and multiple types of reinforcements. The problems like reinforcement-metal matrix bonding, distribution of particles, wettability of reinforcing particles and agglomeration phenomenon are discussed in this paper. The effect of various reinforcement particles on aluminum matrix composites on mechanical properties like uts, ys, stiffness, hardness, fatigue, % E, wear and on resulting microstructure is discussed. The Modified and dual step stir casting technique for the fabrication of AMCs is also discussed in this paper. Keywords: Aluminum matrix composite (AMC), stir casting, reinforcement, mechanical properties, wear behavior I. INTRODUCTIONMetal based matrix composites reinforced with ceramic agents have a wide range of applications in aerospace, automobile, structural components and defense sector. Monolithic aluminum alloys have limitations in achieving good combinations of mechanical properties like strength, toughness, stiffness, wear resistance and density. Metal matrix composites are produced to overcome these shortcomings and to encounter the worldwide requirement for light weight materials with higher specific strength, corrosion resistant, high stiffness and excellent wear resistant properties [1][2]. The properties of aluminum alloy like low density, light weight, easy processing technique and fine engineering characterstics favored it as matrix material in MMC's [3]. The aluminum matrix series like AA2xxx, AA5xxx, AA6xxx, and AA7xxx have numerous applications in aerospace, defense instrument, architectural and structural components, automobile, sports good, and ship building [1][2][3][4].For the fabrication of metallic matrix composites several type of manufacturing methods are employed. The choice of appropriate manufacturing method highly alters the resulting composite microstructure, dispersion of ceramic agents, interfacial bonding betwe...

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“…The advantage of the composites with respect to their substrates reflects in the improvement of the mechanical properties primarily in the increase of the specific elastic modulus, increased hardness, improved wear properties, as well as the resistance to corrosion [3]. Various processing methods have emerged for the synthesis of AMCs, which include stir casting [4], squeeze casting [5], Rheo-casting (compo-casting) [6], spray deposition [7], powder metallurgy (P/M) [8], mechanical alloying [9] etc. Each of these methods has its own advantages and limitations.…”

Section: Introductionmentioning

confidence: 99%

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Khan¹,

Dixit²

2017

J. MECH. ENG. SCI.

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In the present investigation, the erosive wear behaviour of a 10 wt.% SiC particles reinforced aluminium based metal matrix composite has been studied. The composite was fabricated by dispersing SiC particles of size 50-100 µm into the matrix alloy. The resulting material cast was characterised in terms of microstructure, hardness and erosive wear behaviour. The wear response was examined by the sample rotation technique using the slurry pot erosion tester. The effects of speed, sand content and slurry environment on the slurry wear behaviour have been studied. It was observed from the microstructural studies that the interfacial bonding strength between the aluminium matrix and the SiC particles was good and the particles were distributed uniformly. Moreover, in basic medium matrix alloy exhibited a minimum wear rate compared to the composite whereas in the case of an acidic and saline medium, an improved wear resistance was obtained in the case of the composite. The rate of material loss is found to be higher with the increased sand concentration due to the increased impinging action of the sand particles. Also, the rotational speed has a mixed effect on the wear rate. It can be concluded that the material loss was caused by the synergistic effect of corrosive, erosive and abrasive actions of the slurry medium although in the acidic medium, erosion was the dominant mode of material removal whereas corrosion was dominant in the case of a basic medium.

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Production and characterization of AA6061–B4C stir cast composite

Cited by 359 publications

References 17 publications

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Fabrication of Aluminum Matrix Composites by Stir Casting Technique and Stirring Process Parameters Optimization

Mechanical and Metallurgical Examinations of Stir Cast Aluminum Matrix Composites: A Review Study

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

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