The effect of B<sub>4</sub>C and BN nanoparticles on the mechanical and microstructural properties of Al7010 hybrid metal matrix

Dirisenapu, Gopichand; Reddy, Seelam Pichi; Dumpala, Lingaraju

doi:10.1088/2053-1591/ab3d6d

Cited by 13 publications

(10 citation statements)

References 18 publications

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“…The density of the final composite rose significantly than the matrix material 47 Equal amounts of B4C and BN nanoparticles in an Al 7010 matrix at weight percentages of 0, 0.5, 1, 1.5, 2, and 2.5 Up to a concentration of 2 wt% of nanoparticles, microhardness increases; after that, it decreases. Improved friction coefficient by 2.5wt%; reduced wear rate 48 AA6061 alloy reinforced hybrid composites with 5–15 weight percent h-BN and 5–15 weight percent boron carbide The 15% B 4 C and 5% h-BN hybrid composite achieved a considerable increase in tensile strength up to 82% compared to the AA6061 matrix alloy Due to the comprehensive lubricating action on the entire worn surface, B 4 C 10wt% and 10 wt% h-BN demonstrated improved wear resistance 49 Aluminium 7010 reinforced with 0 to 2.5 percent of boron carbide (B 4 C) and boron nitride (BN) nanoparticles mixed in equal parts as reinforcing materials With an increase in particle reinforcement up to 2 Wt% and then increased, the composite’s percentage of elongation and impact strength is decreased. As the weight percentage of B 4 C and BN particles rose to 2, the tensile strength and microhardness dropped 50 Al6061/B 4 C/BN (2, 4, 6 and 8 wt%) B 4 C as well as 2% BN B 4 C 8% reinforcement showed very little wear …”

Section: Resultsmentioning

confidence: 99%

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

Anbuchezhiyan

Mubarak

Karri

et al. 2022

Sci Rep

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Mg–Al–Zn alloys are widely preferred in many applications by considering their excellent properties of high stiffness-to-weight ratio, lightweight, high strength-to-weight ratio, low density, castability, high-temperature mechanical properties, machinability, high corrosion resistance, and great damping. Improving the properties of such alloys is challenging due to their hexagonal crystal structure and other alloying limitations. This study aims to synthesize Mg–Al–Zn alloy by incorporating the alloying elements 8.3 wt% Al, 0.35 wt% Zn on pure magnesium (Control specimen). Then synthesize Mg–Al–Zn/BN/B4C hybrid composite by reinforcing B4C at three weight proportions (3 wt%, 6 wt%, 9 wt%) along with constant solid lubricant BN (3 wt%) through a stir casting process. The hybrid composite samples were characterized and compared with the performances of the control specimen. The results reveal that 9 wt% B4C reinforced samples outperformed through recording the improvement of tensile strength by 28.94%, compressive strength by 37.89%, yield strength by 74.63%, and hardness by 14.91% than the control specimen. Apart from this, it has reduced the corrosion area (37.81%) and noticed negligible changes in density (increased by 0.03%) and porosity (decreased by 0.01%) than the control specimen. The samples were characterized using SEM, XRD, and EDAX apparatus.

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Section: Resultsmentioning

confidence: 99%

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

Anbuchezhiyan

Mubarak

Karri

et al. 2022

Sci Rep

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“…Several investigations have employed the stirring action for enhancement of wettability between the particles and matrix, refinement of molten aluminium, and to distribute the ceramic particles evenly throughout the matrix [9,10]. Gopich and Dirisenapu [11] studied the influence of boron carbide B 4 C and BN reinforcements on the mechanical properties of AA7010 hybrid composites, developed by ultrasonic assisted stir casting method. It was concluded that yield strength and hardness of the composites gradually improved with an increase in reinforcements up to 2 wt%.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, mechanical and tribological behaviours of boron nitride reinforced AA7075 composites produced by stir casting technique

Kumar,

Ravichandran,

Alagarsamy

2024

Surf. Topogr.: Metrol. Prop.

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This experimental investigation focused on synthesis of aluminium 7075-boron nitride (BN) composites (AA7075-BN), using stir casting technique. Four various proportions of BN of 0, 4, 8 and 12 wt.% were used for the production of the composites. Scanning electron microscopy (SEM) was used to study the microstructure of the prepared composites. Using a pin-on-disc equipment, wear test was performed to analyse the tribological characteristics of the as-casted composites. The wear rate (WR) and the co-efficient of friction (COF) were determined by altering the input parameters, such as reinforcement (R), applied load (L), sliding velocity (V) and sliding distance (D). A grey relational technique (GRT) was applied to determine the appropriate conditions of parameters and showed low WR and COF for the composites. From the experimental results obtained, the least density of the composite was 2.70 g/cm 3 for AA 7075-12 wt.% BN. The mechanical properties of the composites were significantly improved. The highest tensile strength of 210 MPa was obtained from the same AA 7075-12 wt.% BN. There was 26% of improvement in the tensile strength with 4 wt.% of BN reinforcement in AA7075 matrix. Finally, the worn surface morphology confirmed plough and furrow formations on the AA 7075- 4wt.% BN and AA 7075-8 wt.% BN composites, respectively. Therefore, the applications of the various composites depend on their responses to the properties, as studied.

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“…According to some lliterature, the UASC route is considered a preferable manufacturing technique for producing AMMNCs due to its ability to effectively wet and distribute nanoparticles within the aluminum alloy. [3][4].The conventional machining routes are not efficient due to the mixing of ceramic hard particles in the aluminium alloy. Therefore, the unconventional machining would be a superior and good decision to machine such hard and critical to-cut materials.…”

Section: Introductionmentioning

confidence: 99%

Optimization of process variables on Electrical Discharge Machining of novel Al7010/B₄C/BN hybrid metal matrix nanocomposite

Dirisenapu,

salavaravu,

kolli

et al. 2023

E3S Web Conf.

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In this paper, determination of optimum EDM input variables like discharge current (DC), pulse on time (Pon), pulse off time (Poff), and gap voltage (GV) on responses like material removal rate (MRR) and surface roughness (SR) using Taguchi technique on the novel Al7010/2%B4C/2%BN hybrid metal matrix nanocomposite (HMMNC) manufactured through ultrasonic assisted stir casting (UASC) route. The various experiments were planned and carried out L16 orthogonal array and regression equations were established by using Analysis of variance (ANOVA) to examine the impact of pulse factors. The outcomes exposed that discharge current greatest effect factor on MRR and SR was found with % contribution of 82.07% and 86.86%. It is also identified that the optimum level conditions of pulse factors for MRR and SR is A4B4C1D1 and A1B1C4D4. The outcomes were further determined by utilizing confirmatory experiment. The machined surface morphology was observed through Scanning electron microscope (SEM).

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The effect of B₄C and BN nanoparticles on the mechanical and microstructural properties of Al7010 hybrid metal matrix

Cited by 13 publications

References 18 publications

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

Synthesis, mechanical and tribological behaviours of boron nitride reinforced AA7075 composites produced by stir casting technique

Optimization of process variables on Electrical Discharge Machining of novel Al7010/B₄C/BN hybrid metal matrix nanocomposite

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The effect of B4C and BN nanoparticles on the mechanical and microstructural properties of Al7010 hybrid metal matrix

Cited by 13 publications

References 18 publications

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

A synergistic effect on enriching the Mg–Al–Zn alloy-based hybrid composite properties

Synthesis, mechanical and tribological behaviours of boron nitride reinforced AA7075 composites produced by stir casting technique

Optimization of process variables on Electrical Discharge Machining of novel Al7010/B4C/BN hybrid metal matrix nanocomposite

Contact Info

Product

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About

The effect of B₄C and BN nanoparticles on the mechanical and microstructural properties of Al7010 hybrid metal matrix

Optimization of process variables on Electrical Discharge Machining of novel Al7010/B₄C/BN hybrid metal matrix nanocomposite