Effect of TiB2 Particles on the Morphological, Mechanical and Corrosion Behaviour of Al7075 Metal Matrix Composite Produced Using Stir Casting Process

Manoj, M.; Jinu, G. R.; Kumar, J. Suresh; Mugendiran, V.

doi:10.1007/s40962-021-00696-3

Cited by 45 publications

(9 citation statements)

References 37 publications

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“…Manjo [12] reported that the corrosion resistance, tensile strength, and wear resistance of Al7075 materials were remarkably enhanced by adding TiB 2 particles to the matrix. Downsizing the reinforcing particles has been shown to be effective in achieving higher mechanical and tribological properties [13,14].…”

Section: Introductionmentioning

confidence: 99%

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Pan

2023

Materials Science and Technology

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Multi-walled carbon nanotubes (MWCNTs) possess outstanding physical and mechanical properties, making them suitable as reinforcing materials for metal-matrix composites. However, their creep resistance has not been studied well. In the present study, aluminium A356 composites reinforced with various weight percentages of MWCNTs were fabricated using the stir casting technique. The surface coating was applied to enhance the wettability of carbon nanotubes. Tensile experiments, fracture analysis, creep tests, and microstructural analyses were performed on the produced composites. Aluminium samples reinforced with 0.2 weight percentage of coated MWCNTs showed to have higher hardness (14%), yield strength (36%), ultimate tensile strength (20%), elongation at break (16%), and creep resistance (30%) compared to that of composites reinforced with uncoated MWCNTs.

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Section: Introductionmentioning

confidence: 99%

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Pan

2023

Materials Science and Technology

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“…Figure 9 presents the cast composites' strength in yield and hardness values. Inclusion of CNTs, the nanoparticle's surface area is higher, which is the essential factor for improved strength and hardness [43]. With the inclusion of TiB 2 , hardness, strength, and yield improved as the reinforced TiB 2 are harder than the matrix.…”

Section: Resultsmentioning

confidence: 99%

Characterization and strengthening mechanism of CNT/TiB₂ particulates added AZ91D composites

velmurugan

Mohan

2023

Mater. Res. Express

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In the current work, magnesium (AZ91D) matrix composites reinforced with different weight fractions (5, 10, and 15%) of titanium diboride (TiB2) and 1.5 wt.% percent carbon nanotubes (CNTs) are fabricated using stir casting. The improvements in mechanical, wear and corrosion resistance properties are evaluated as per ASTM guidelines. The synergistic strengthening effect of TiB2 and CNT is also studied. It was discovered that the AZ91D/(1.5CNT-10TiB2) composite outperformed other magnesium matrix composites in terms of strength and ductility. Experimental characterization and quantity analysis revealed that the load transfer process of CNT and thermal mismatch, grain refinement are the primary factors leading to the composite's increased tensile strength. Porosity tends to increase as a result of variance in thermal expansion coefficient of particles and matrix material, Orowan strengthening mechanism plays a prominent role towards enhancement of tensile strength. Because of the influence of synergistic strengthening, micro particles TiB2 increased the proportion of load transmission mechanisms and thermal mismatch facilitated the homogenous distribution of CNTs. Wear resistance and corrosion resistance increases with inclusion of CNTs and TiB2 content. Abrasive type wear mechanism is seen from the SEM image and the wear craters are also seen in all the SEM images, adding TiB2 considerably improves the cast composites resistance to corrosion because of grain refinement. Higher addition of TiB2 influences higher pitting corrosion due to poor grain refinement.

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“…The base alloy was melted into liquid form in electrically heated furnace. Two halide salts, potassium hexaflurotitanate (K 2 TiF 6 ) and potassium tetrafluoroborate (KBF 4 ) were dried beforehand and warmed for two hours at 200 °C to melt them [14][15][16][17][18]. Stir cast process parameters such as melting temperature, stirring time and speed were varied three levels each using the Box-Behnken design of response surface methodology (RSM).…”

Section: Methodsmentioning

confidence: 99%

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

Nandakumar¹,

Somasekaran²

2022

Mater. Res. Express

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Aluminum matrix composites have gained interest recently because they are more efficient, lighter, and less expensive. The purpose of this current study was to examine the effects of various casting operating conditions, including stirring temperature, stirring time, and stirring speed, on the casting process. Determining the optimum processing parameters to achieve significant outcomes could be the most daunting problem while casting a specimen. Box-Behnken design based on response surface methods was used to investigate the effects of stir casting factors on the mechanical properties of AA6063 - 4 % TiB2 composites. The response's real value, which includes hardness before heat treatment, hardness after heat treatment, and tensile strength, is reflected in the surface plot created by statistical software. F-ratio is often used in an ANOVA table to examine how operational variables affect properties of the material. Dispersion of the reinforcements mixture has been studied and characterized under scanning electron microscope and x-ray diffraction spectrometer. The optimum temperature, time, and rotational speed were 823.662°C, 15 minutes, and 300 rpm. Composite materials made from aluminium 6063 are extensively used in the fabrication of lightweight aircraft components like ribs and fuselages.

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Effect of TiB2 Particles on the Morphological, Mechanical and Corrosion Behaviour of Al7075 Metal Matrix Composite Produced Using Stir Casting Process

Cited by 45 publications

References 37 publications

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Characterization and strengthening mechanism of CNT/TiB₂ particulates added AZ91D composites

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

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Effect of TiB2 Particles on the Morphological, Mechanical and Corrosion Behaviour of Al7075 Metal Matrix Composite Produced Using Stir Casting Process

Cited by 45 publications

References 37 publications

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Creep and mechanical properties of aluminium A356 composites reinforced with coated and un-coated MWCNTs fabricated using the stir casting method

Characterization and strengthening mechanism of CNT/TiB2 particulates added AZ91D composites

Experimental investigation and characterization of titanium diboride reinforced AA6063 in-situ composites

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Product

Resources

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Characterization and strengthening mechanism of CNT/TiB₂ particulates added AZ91D composites