Sliding wear behaviour of Al 6063/TiB2 in situ composites at elevated temperatures

Natarajan, S.; Narayanasamy, R.; Babu, S.P. Kumaresh; Dinesh, G. Kumaravel; Kumar, B. Anil; Sivaprasad, K.

doi:10.1016/j.matdes.2008.09.037

Cited by 191 publications

(53 citation statements)

References 28 publications

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“…The in situ formed TiB 2 particles exhibit various shapes such as spherical, hexagonal and cubic. Some investigators observed the shape of TiB 2 particles to be hexagonal [25][26][27]32] while some other reported spherical and cubic structure [21,29,30]. It is evident from Fig.…”

Section: Microstructure Of Aa7075/tib 2 Amcsmentioning

confidence: 83%

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Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

et al. 2013

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Section: Microstructure Of Aa7075/tib 2 Amcsmentioning

confidence: 83%

“…TiB 2 is a refractory compound which exhibits excellent features such as high melting point, high hardness and high modulus characteristics. TiB 2 does not react with aluminum to form reaction product at the interface of reinforcement and matrix [32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

et al. 2013

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“…Natarajan et al [40] studied the pin-on-disc dry slippery wear behavior of fabricated in-situ AA6063/Tib 2 composite material at applied loads of 9.8N, 19.6N & 29.4N at different temperature (100, 200 and 300 deg. celsius) and at room conditions for comparison.…”

Section: B Tribological 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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“…Natarajan et al [18] showed that the dry sliding at room temperature increases the wear resistance of Al-6063 alloy by the reinforcement of TiB 2 particles.…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles

Krishnamurthy¹,

Ashebre²,

Venkatesh³

2017

JMMCE

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The influence of titanium diboride (TiB 2 ) loading on the dry sliding wear characteristics of aluminum 6063 matrix alloy-titanium diboride (Al/TiB 2 ) composite materials has been assessed using a pin-on disc wear tester at different loads. The composites with 5 and 10 wt% of fine TiB 2 particles were fabricated using stir casting technique. For comparison, as-cast of the base alloy were made under the same processing applied for Al/TiB 2 composites. The hardness of the composite materials was measured using Brinell hardness tester. Scanning electron microscopy (SEM) was used to analyze the wear surfaces of samples. The results indicate that fine TiB 2 particles markedly improved the wear performance of the aluminum 6063 matrix alloy. The coefficient of friction decreases with increase in the amount of TiB 2 , but this effect was more pronounced in dry sliding. Hardness of composites increased with increasing TiB 2 loading. The wear rates increase with increase in load and dependent upon TiB 2 loading in the base alloy. Among the composites tested, Al/TiB 2 composites containing 10 wt% TiB 2 exhibited superior wear resistance over the base alloy and 5 wt% Al/TiB 2 composites. These observations were correlated in terms of the TiB 2 loading in base alloy which resulted in the variations of the hardness.

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Sliding wear behaviour of Al 6063/TiB2 in situ composites at elevated temperatures

Cited by 191 publications

References 28 publications

Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

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

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles

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Sliding wear behaviour of Al 6063/TiB2 in situ composites at elevated temperatures

Cited by 191 publications

References 28 publications

Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

Synthesis and characterization of in situ formed titanium diboride particulate reinforced AA7075 aluminum alloy cast composites

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

Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB&lt;sub&gt;2&lt;/sub&gt; Particles

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Dry Sliding Wear Behavior of Aluminum 6063 Composites Reinforced with TiB<sub>2</sub> Particles