Development of a novel 6351 Al–(Al4SiC4+SiC) hybrid composite with enhanced mechanical properties

Show, Bijay Kumar; Mondal, Dipak Kumar; Biswas, Koushik; Maity, Joydeep

doi:10.1016/j.msea.2013.04.105

Cited by 43 publications

(10 citation statements)

References 27 publications

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“…26 Further, Al alloy also contains the Si-particles which can further lowers the actual contact area. This was reported previously by Show et al 31 The reduction in actual contact area results in reduction of coefficient of friction by allowing sliding over hard load supporting columns. For normal load of 50 N, the linear increase in friction coefficient with reciprocating sliding speed can be explained by considering the interface contact zone, which may deform locally and can cause increase in adhesion.…”

Section: Discussionsupporting

confidence: 63%

Influence of load, sliding speed, and microstructure on wear response of AZ91 Mg alloy

Kumar

Jain

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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This article deals with the tribological study of solution-treated and peak aged AZ91 Mg alloy. Tribological studies were carried out using reciprocating sliding contact under lubricated conditions. The effect of load, sliding speed, and microstructure on wear response of AZ91 Mg alloy was investigated. The wear response was characterized using optical microscopy, scanning electron microscope, and energy dispersive X-ray spectroscopy mapping. The peak aged alloy showed excellent wear resistance against Al6351 Al alloy as compared with solution-treated alloy. The formation of γ-Mg17Al12 precipitates in aged sample was found to increase the wear resistance. The specific wear rate for peak aged alloy was almost one-third than that of solution-treated alloy. In both the samples, i.e. solution-treated and peak aged, the coefficient of friction decreases with increase in sliding speed at low load, while the behavior of peak aged sample was found to be opposite at higher load. At low load, the wear mode for peak aged sample was oxidative which further shifted to adhesive at higher loads.

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Section: Discussionsupporting

confidence: 63%

Influence of load, sliding speed, and microstructure on wear response of AZ91 Mg alloy

Kumar

Jain

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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show abstract

“…For example, 1.7 % porosity is observed in Al/Fe + Ti hybrid composite synthesized by melt-deposition and further adopting some additional thermal processing (hot extrusion) [18]. Furthermore, 1.2 % porosity is observed in AA1050 Al/8 % SiC composite [26]. In any case, considering all synthesized composites, the maximum level of porosity observed in the present research work (in SRT-25) is still not so significant (~4 %).…”

Section: Physical Properties (Density and Porosity)mentioning

confidence: 99%

Attainment of high specific hardness and specific modulus in spark plasma sintered aluminium‐copper‐silicon carbide‐titanium carbide hybrid composite

Saha

Ghosh

Pramanick

et al. 2021

Materialwissenschaft Werkst

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Aluminium matrix hybrid composites have been consolidated effectively by spark plasma sintering with new combinations of reinforcement and high volume percentage of ceramic particulates to maximize specific hardness and specific modulus through the powder metallurgy route. The aforementioned techno-scientific accomplishment with regard to metal matrix composite aims to meet a continuous increase in the global demand for a material with minimum structural weight and high-modulus for structural (automotive and aerospace) applications. The new aluminium based hybrid composite developed by incorporating ceramic particulate reinforcements (12.5 wt.% silicon carbide and 12.5 wt.% titanium carbide) along with 22.5 wt.% copper as the metallic reinforcement attains significantly high specific hardness (85 HV/gcm À 3 ), specific Young's modulus (33.56 GPa/g cm À 3 ), specific bulk modulus (27.97 GPa/g cm À 3 ) when compared with the reported range of specific hardness (13 HV/g cm À 3 -89 HV/g cm À 3 ), specific Young's modulus (24 GPa/ g cm À 3 -27 GPa/g cm À 3 ) and specific bulk modulus (20 GPa/g cm À 3 -22 GPa/g cm À 3 ) possessed by structural steels. This is accredited to the genesis of a novel microstructure that consists of fine copper, silicon carbide and titanium carbide particulates together with a nominal in-situ originated aluminium-copper equilibrium phases distributed in a highly substructured aluminium based matrix with a significant dislocation density (7.56 • 10 14 m -2 ).

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“…Since the Al 6351 Aluminum alloy is a brittle in nature no neck formation before fracture. The cast 6351 Al alloys" strength and ductility is very low, the UTS is 119MPa by sand casting, Usually Al 6351 alloy possess poor castability and the alloy is used in wrought form [21,22]. Another bench marked measured tensile strength value from Zcast mould is 89.8MPa.…”

Section: Fig-2mentioning

confidence: 99%

A Preliminary Investigation of Gypsum Bonded Moulds by Three Dimensional Printing

Bobby¹

2014

IJRET

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Development of a novel 6351 Al–(Al4SiC4+SiC) hybrid composite with enhanced mechanical properties

Cited by 43 publications

References 27 publications

Influence of load, sliding speed, and microstructure on wear response of AZ91 Mg alloy

Influence of load, sliding speed, and microstructure on wear response of AZ91 Mg alloy

Attainment of high specific hardness and specific modulus in spark plasma sintered aluminium‐copper‐silicon carbide‐titanium carbide hybrid composite

A Preliminary Investigation of Gypsum Bonded Moulds by Three Dimensional Printing

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