Microstructure and mechanical properties of aluminium metal matrix composites with addition of bamboo leaf ash by stir casting method

Kumar, B. Praveen; Birru, Anil Kumar

doi:10.1016/s1003-6326(17)60284-x

Cited by 144 publications

(72 citation statements)

References 69 publications

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“…The aluminium peaks for Composites B and C (with moringa oleifera ash particles) are shifted to higher 2q values in comparison to the LM25 alloy. This result is similar to that obtained by Praveen 15 who fabricated aluminium-matrix composites with bamboo leaf ash particles.…”

Section: Density Porosity and Vickers Hardnesssupporting

confidence: 90%

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

Manickam¹,

Santhanam²,

Sivagnanam³

2019

Mater. Tehnol.

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An experimental investigation was performed on an LM25 aluminium alloy reinforced with silicon carbide (SiC), graphite (Gr) and moringa oleifera ash (MOA) particles. The composites with different proportions such as 5 w/% of SiC, 5 w/% of SiC + 1 w/% of Gr, 5 w/% of SiC + 3 w/% of Gr, 5 w/% SiC + 1 w/% MOA, and 5 w/% of SiC + 3 w/% of MOA were produced with the stir-casting method. The effects of the reinforcement particles on density, micro-hardness, grain size, porosity, particle distribution and microstructure were studied. A characterization study was made using optical microscopy (OP) and scanning electron microscopy (SEM). Based on the hardness and density results, the MOA-reinforced composites had better hardness and decreased porosity when compared to the Gr-reinforced composites. The MOA particles exhibited a homogeneous distribution in the matrix whereas the Gr particles had a few cluster formations.

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Section: Density Porosity and Vickers Hardnesssupporting

confidence: 90%

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

Manickam¹,

Santhanam²,

Sivagnanam³

2019

Mater. Tehnol.

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“…They concluded that wear rate is most affected by abrading distance, compared to load and composite configuration. Praveen Kumar et al [7], used Al-4.5%Cu alloy and reinforced it with 2%, 4% and 6% of bamboo leaf ash (BLA) respectively via stir casting. Slurry erosion behavior of hybrid matrix flexible composite (HyMFC) made from different stacking sequence of jute and rubber, and single matrix flexible composite (SMFC) were compared by Mahesh et al Process parameter were optimized using Taguchi and they concluded that best erosion resistance in slurry medium was provided by HyMFC composed of vulcanized rubber bonding gum [8].…”

Section: Introductionmentioning

confidence: 99%

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

et al. 2020

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Among several methods to fabricate Aluminium metal matrix composites, stir-casting technique is used for large-scale production due to its being less expensive. This research is concerned with the fabrication of Aluminium composites with SiC and Jute Ash Particles, for sake of producing a cost-effective composite with enhanced properties. Wear behaviour was studied using pin on disc tribometer and it was found that wear resistance increases with-addition of reinforcement particles. Fabricated composite samples showed almost 4 times better wear resistance compared to base material. Matrix metal reinforced with SiC showed the best wear resistance of all fabricated samples. Coefficient of friction significantly decreased with the presence of reinforcement due to formation of mechanical mixed layer. Tensile Strength was escalated with the introduction of reinforcement as load is transferred to strongly bonded reinforcement particles. Microhardness was enhanced with the introduction of reinforcement and Sample 2 with SiC as reinforcement showed the best microhardness. Microstructure and fractography of the base metal and fabricated composites was analyzed by Scanning Electron Microscope (SEM).

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“…The reinforcement of Aluminium done with the adding of BLA by the stir-casting method can minimize the density and overall cost of aluminium composites. Al-4.5 Cu B −1 L −1 A −1 composite was fabricated by stir casting method and perceived that mechanical properties of as-cast material had been improved reported by Praveen and Anil [5]. It was also observed the particles-agglomeration and porosity in their fabricated composite.…”

Section: Introductionmentioning

confidence: 80%

Effect on corrosion behaviour of the surface of aluminium 4.5 Cu with bamboo leaf ash composites by laser treatment

Rao

Bannaravuri

Birru

2020

Mater. Res. Express

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Aluminium composites have various applications in engineering thanks to their greater strength with lightweight, formability and ductility. However, the properties of the Aluminium composites such as wear, corrosion, hardness, and fatigue resistance are critical at near-surface regions. In this present research work, the effect on the surface of Aluminium 4.5Cu with Bamboo Leaf Ash composite by laser surface melting was done, wherein the fabrication was done by stir-casting with bamboo leaf ash reinforced particles with 2 and 4 weight percentage. By using the laser machine, the composite's surface was melted. Microstructure and corrosion behaviour of composites before surface melting and after laser surface melting was inspected and the outcomes were compared. It was perceived that, the diminishment of porosity in the grain refinement. The corrosion resistance of composites had improved remarkably by Laser Surface Melting. The Corrosion mechanism was analysed by observing the morphology of the corroded surface of composites. Henceforth the Laser Surface Melting will be applied appropriately to boost the surface properties of aluminium composites.

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Microstructure and mechanical properties of aluminium metal matrix composites with addition of bamboo leaf ash by stir casting method

Cited by 144 publications

References 69 publications

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

Effect on corrosion behaviour of the surface of aluminium 4.5 Cu with bamboo leaf ash composites by laser treatment

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