Study on microstructure and abrasive wear behavior of sintered Al matrix composites

Mazahery, Ali; Shabani, Mohsen Ostad

doi:10.1016/j.ceramint.2012.02.008

Cited by 116 publications

(46 citation statements)

References 35 publications

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“…The microstructure of the PM materials is as similar as cast and wrought parts but pore related microstructural parameters can be taken into account for the study of mechanical and tribological properties. 7 Narayanasamy et al investigated on the cold forging of sintered aluminum-3.5% alumina PM composite under triaxial stress state condition and also suggested that the cold deformation study on the sintered PM composites is very important for the fabrication of PM parts in various applications. 8 They also studied about the effect of particle size on Al-iron PM composite during cold upsetting.…”

Section: Introductionmentioning

confidence: 99%

Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Ravichandran¹,

Sait²,

Anandakrishnan

2014

J. Mater. Res.

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Aluminum metal matrix hybrid composites were synthesized through powder metallurgy route from ball milled powders to yield the compositions: Al 1 0% TiO 2 , Al 1 2.5% TiO 2 , Al 1 2.5% TiO 2 1 2% Gr, and Al 1 2.5% TiO 2 1 4% Gr. The densification and deformation properties of sintered Al-TiO 2 -Gr composites during cold upsetting were investigated experimentally. The powder preforms are compacted using suitable punch and die in 40 kN hydraulic press and the initial percentage theoretical density was maintained as 85%. Sintering was done in an electric muffle furnace at the temperature of 590°C for a period of 3 h. The sintered preforms were subjected to incremental compressive loading of 10 kN until cracks were found at the free surface. The true axial stress (r z ), true hoop stress (r h ), true hydrostatic stress (r m ), and true effective stress (r eff ) were calculated for all the preforms and all these stresses are correlated with the true axial strain (e z ). The densification behaviors of the composites were studied against true axial strain (e z ) and lateral strain. Better densification and deformation property were obtained for pure aluminum preforms compared with other composite preforms. Addition of TiO 2 to the pure Al and Gr reinforcements increases the strength coefficient of the Al-TiO 2 composite.

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Section: Introductionmentioning

confidence: 99%

Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Ravichandran¹,

Sait²,

Anandakrishnan

2014

J. Mater. Res.

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“…Hard and sharp asperities of Zircon (ZrSiO 4 ) delayed the transition load of Aluminum by forming MML with the counter face [46]. The tendency of cracking during wear phenomena was discovered to be more at low normal load conditions [20].…”

Section: Normal Loadmentioning

confidence: 99%

“…The broken asperities during run-in wear are pulled out and cut the counter faces in contact if they are entrapped between mating surfaces. Composites with larger volume fraction of reinforcement sustained abrasive wear at the time of sliding [46]. The abrasion may become severe when the normal load and sliding speed are increased more than certain value.…”

Section: Abrasive Wearmentioning

confidence: 99%

Inspiration of reinforcements, manufacturing methods, and microstructural changes on wear behavior of metal matrix composites—a recent review

Hariharasakthisudhan¹,

Rajan

2020

Mater. Res. Express

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The Metal Matrix Composites (MMCs) are increasingly replacing the commercial alloys in engineering components and undergoing intense analysis in the development of advanced composite structures. The metal matrix composites exhibit superior mechanical and tribological behavior than alloys in wear critical applications. Profound research works have been carried out in manufacturing the MMCs for improved friction and wear behavior. This study highlights the recent investigations from the perspective of wear behavior of MMCs. The effect of reinforcements and manufacturing processes of composites on wear behavior is elaborated. The significance of mechanical factors such as normal load, sliding speed and sliding distance is explained. The wear mechanisms observed in MMCs and studies on sub surface damages of composites are reported.

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“…The selection of reinforcement material is veryi mportantt oo btain improved properties of metal matrix composites. Various researchers have attempted to produce aluminum metal matrix composites by using SiC, B 4 C, Al 2 O 3 ,TiC, and AlN zircon as reinforcements [7]. Sivasankaran et al suggested that TiO 2 can be used as reinforcementinaluminum alloys since it possesseshigh hardness and modulus with superiorc orrosion resistance and wear resistance [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting

Ravichandran¹,

Sait²,

Anandakrishnan

2014

International Journal of Materials Research

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Effect of TiO 2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting Aluminum-based metal matrix composites withv arious weight percentages (0, 2.5, 5, 7.5, and 10) of TiO 2 reinforcementw eres ynthesized by means of powder metallurgy and theirw orkability behavior under triaxial stress-state conditions was completely studied during cold upsetting. Green cylindrical compactswere made using a400 kN hydraulic press with suitable punch and die, sintered at (590 ±10) 8 Cf or ap eriod of 3h,f urnace cooled and machinedtoobtain samples with 0.5 aspect ratio. The cold upset tests were carriedo ut in steps of 10 kN and the results were studied for the workability behavior of the composites. The formability stress index ( b )a nd stress ratio parameters ( r z / r eff ), ( r m / r eff ), and ( r h / r eff )w ere calculated for all composites and correlated with true axial strain(e z ). It was observed that the addition of TiO 2 to the Al matrix material increases the stress ratio parameters and formability stress index ( b ).

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Study on microstructure and abrasive wear behavior of sintered Al matrix composites

Cited by 116 publications

References 35 publications

Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Inspiration of reinforcements, manufacturing methods, and microstructural changes on wear behavior of metal matrix composites—a recent review

Effect of TiO₂ in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting

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Study on microstructure and abrasive wear behavior of sintered Al matrix composites

Cited by 116 publications

References 35 publications

Densification and deformation studies on powder metallurgy Al–TiO2–Gr composite during cold upsetting

Densification and deformation studies on powder metallurgy Al–TiO2–Gr composite during cold upsetting

Inspiration of reinforcements, manufacturing methods, and microstructural changes on wear behavior of metal matrix composites—a recent review

Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting

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Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Densification and deformation studies on powder metallurgy Al–TiO₂–Gr composite during cold upsetting

Effect of TiO₂ in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting