Wear Resistivity of Al7075/6wt.%SiC Composite by Using Grey-Fuzzy Optimization Technique

Bhowmik, Abhijit; Biswas, Ajay

doi:10.1007/s12633-021-01160-x

Cited by 15 publications

(8 citation statements)

References 41 publications

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“…Overall, there is a consistent trend of reduced wear with an increasing weight fraction of CSC in the composite. The reinforcement effect of CSC and the effect of temperature are significant factors, and the use of ANOVA can determine the significance of the CSC weight fraction on wear and COF [32]. The COF values were measured for different samples of Al-7075/ ZrO 2 /CSC, as shown in figure 12, at various temperatures.…”

Section: Resultsmentioning

confidence: 99%

Experimental investigation of coconut shell charcoal and boron carbide/zirconium dioxide in aluminium 7075 matrix composites under varying operating conditions: a comparative analysis

Silambarasan,

Karthikeyan

2023

Mater. Res. Express

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This study focused on investigating the influence of varying weight percentages of coconut shell charcoal (CSC) on the physical, mechanical, and wear properties of aluminum 7075 (Al-7075) matrix composites reinforced by boron carbide (B4C) and zirconium dioxide (ZrO2). Throughout the study, these composites were prepared with a constant 3 wt% B4C/ZrO2. The developed composites were then subjected to the tribological analysis using a pin-on-disc apparatus under a constant sliding speed (2000 m), a sliding distance (4 m s−1), and varying operating temperatures (room temperature, 150, 200, and 250 °C). The worn-out surfaces of the composites were examined using a magnified scanning electron microscope (SEM) to investigate the microstructural analysis and wear behavior. The composites containing 3% B4C/ZrO2 and 3% CSC exhibited the highest hardness and wear resistance among the studied composites. The incorporation of CSC increased the density and porosity of the composites up to a 3 wt%, but at 4 wt%, a decrease was observed. It is worth noting that the B-series samples had slightly lower hardness values compared to the Z-series samples. Regarding the effect of temperature, the wear rate decreased as the temperature increased. The Al-7075/ZrO2/CSC composite demonstrated improved wear resistance and coefficient of friction (COF) compared to the Al-7075/B4C/CSC composite, with respective enhancements of 19.30% and 42.19%. The analysis of variance (ANOVA) confirmed the significant impact of CSC weight fraction on wear for both composites, whereas only the Al-7075/ZrO2/CSC composites showed significance for COF. The SEM analysis revealed that the addition of CSC resulted in a uniform distribution of particles within the matrix, leading to improved wear resistance. Therefore, this study demonstrated that the addition of CSC influenced the density, porosity, hardness, wear resistance, and COF in the Al-7075 matrix composites. Optimal performance was achieved with a 3 wt% CSC for Al-7075/ZrO2/CSC at 250 °C. The composites developed in this study, comprising boron carbide (B4C)- and zirconium dioxide (ZrO2)-reinforced aluminum 7075 (Al-7075) matrix with varying weight percentages of CSC, have several potential applications such as in the fields of automotive, aerospace, defense, and industrial machinery.

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Section: Resultsmentioning

confidence: 99%

Experimental investigation of coconut shell charcoal and boron carbide/zirconium dioxide in aluminium 7075 matrix composites under varying operating conditions: a comparative analysis

Silambarasan,

Karthikeyan

2023

Mater. Res. Express

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“…The wear resistance capability of filled composites was significantly increased [18][19][20] due to the hard and stiff borosilicate glass particles. Large amounts of heat are created between two surfaces, creating a self-lubricating tribo-layer that decreases the wear rate of composites [21][22][23]. This is why composites with borosilicate glass reinforcement have a decreasing wear rate.…”

Section: Wear Behaviourmentioning

confidence: 99%

“…In recent years, borosilicate reinforced aluminium composites have garnered significant attention for their lightweight nature, impressive strength-to-weight ratio, and improved mechanical properties. Achieving successful machining of these composites hinges on finely tuning machining parameters to ensure effective material removal, superior surface finish, and prolonged tool lifespan [18][19][20][21]. This review delves into existing research on optimizing machining parameters specifically for borosilicate-reinforced aluminium composites, aiming to offer a comprehensive snapshot of the current knowledge landscape in this domain.…”

Section: Introductionmentioning

confidence: 99%

Tribological impact on borosilicate glass powder reinforced Al-MMC by variation of sliding velocity and the study of its machinability

Bhowmik,

Bhattacharjee,

et al. 2024

Phys. Scr.

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Now-a-days, metal matrix composites based on pure aluminium are widely used as a replacement for a wide range of applications thanks to their high strength-to-weight ratio, ductility, and thermal conductivity. Micron-sized (10-3 mm) borosilicate (mixer of Silica (SiO2) and Boron Oxide (B2O3)) glass particles were used to create a dispersion in an aluminium matrix composite (Al7075- borosilicate glass MMC) utilizing a stir casting technique while in a liquid condition. The present study examines the effect of borosilicate glass particle content (0, 3, 6, and 9 wt. %) and changes in sliding velocity (0.5, 1, 1.5, and 2 m/s) on the wear behaviour of a composite rubbing against an EN31 steel disc at a constant load of 20N and a sliding distance of 1000 m. Analysis of wear showed that the presence of borosilicate glass increased the wear rate and countered the trend shown in the coefficient of friction. In a similar vein, the sliding velocity of the counter plate rotated faster resulted in a higher coefficient of friction and a higher wear rate. A reliable mathematical model is developed to find the best combination of machining parameters for Al7075-borosilicate glass metal matrix composite (MMC). This model will consider important performance measures like surface smoothness and material removal rate. The authors will also use a sophisticated statistical method called the Taguchi L9 orthogonal array design of experiments (DOE) to understand how different machining settings affect how easily the composite can be machined. By analyzing the results from the DOE, it can optimize the machining parameters for efficient and cost-effective processing. This work can lead to manufacturing innovation in the future.

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“…In this chapter brief idea of thermally induced stresses and strains and basic concept of MIG welding are discussed. It also includes concise idea about different types of weld joints [16][17][18][19]. Plasma arc welding (PAW) is an arc welding process very similar to TIG welding as the arc is formed between a pointed tungsten electrode and the workpiece [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Computational investigation of plasma arc welding process for aluminium alloys

Hossain,

Bhowmik,

Pattanaik

et al. 2024

Eng. Res. Express

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Thermal stress is a very common phenomenon that occurs at the welded joint. Determination of the same at the joint is however difficult due to inhomogeneity of the weld joint metals and spreading of heat to the surroundings from the Heat Affected Zone (HAZ). Thermal stress induced at the welded joint changes the microstructure of grains which affects the mechanical properties of the welded material. Due to this, cracks may appear in the joint leading to failure of the weld. In the present study, three-dimensional model of two types of welded joint, i.e., Tee Joint and lap joint of two plates having dimensions 100 mm X 75 mm X 5 mm are prepared using ANSYS Workbench 2020 R2. Hex dominant meshing is chosen in order to have clear picture of the spread of temperature over the entire region. The change of Residual stress with variation of welding current and keeping welding voltage constant is also observed for weld joint made of Aluminium Alloy. In this study, conduct steady-state thermal analysis and structural analysis on an aluminium alloy 6063 to assess von Mises stress, von Mises strain, and deformation distribution induced by heating. Evaluate various welding joints to identify the most effective technique.

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Wear Resistivity of Al7075/6wt.%SiC Composite by Using Grey-Fuzzy Optimization Technique

Cited by 15 publications

References 41 publications

Experimental investigation of coconut shell charcoal and boron carbide/zirconium dioxide in aluminium 7075 matrix composites under varying operating conditions: a comparative analysis

Experimental investigation of coconut shell charcoal and boron carbide/zirconium dioxide in aluminium 7075 matrix composites under varying operating conditions: a comparative analysis

Tribological impact on borosilicate glass powder reinforced Al-MMC by variation of sliding velocity and the study of its machinability

Computational investigation of plasma arc welding process for aluminium alloys

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