Wear and Mechanical Properties of In Situ A356/5%TiB2 Composite Synthesis by Cooling Slope Technique

Gautam, Sujeet Kumar; Mallik, Manab; Roy, Himadri; Lohar, Aditya Kumar; Samanta, Sudip Kumar

doi:10.1007/s40962-022-00931-5

Cited by 10 publications

(3 citation statements)

References 36 publications

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“…Additionally, the elongated needle shape of Magnesium silicide precipitates is visible in some regions inside α-aluminium grains and at α-aluminium grain boundaries (confirmed by electron dispersive x-ray analysis). These magnesium and silicon-rich intermetallic phases induce stress concentration, deteriorating mechanical properties [33,34].…”

Section: Microstructural Characterizationmentioning

confidence: 99%

Optimization of process variables and characterization of mechanically agitated ceramic‐microsphere reinforced aluminium composite

Anand,

Tiwari,

Prakash

et al. 2024

Materialwissenschaft Werkst

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This study aims to investigate the effect of stir‐casting process parameters, including stirring speed, stirring time, and weight % of the ceramic microsphere, on the fabrication of an aluminium 6061‐ceramic microsphere composite. Experiments are conducted using a full‐factorial design approach to determine the effect of variables on mechanical properties. A field effect scanning electron microscope is used to analyze the fracture surfaces of the test specimen. Further, the results are subjected to the Anderson‐darling normality test to validate the accuracy of the model, and finally, an analysis of variance is performed to identify the most significant parameters that affect the mechanical properties. The results confirm the validity of the designed experimental model for enhancing the mechanical properties of the aluminium 6061‐ceramic microsphere composite. The optimum mechanical properties are attained for a stirring speed of 600 min−1, stirring time of 15 min, and 5 weight % of reinforcement. Furthermore, the weight percentage of the ceramic microsphere increase, the ductility of the composite decreases while its strength and hardness increase. Finally, the analysis of variance shows that all parameters significantly impact the mechanical properties of the designed composite.

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Section: Microstructural Characterizationmentioning

confidence: 99%

Optimization of process variables and characterization of mechanically agitated ceramic‐microsphere reinforced aluminium composite

Anand,

Tiwari,

Prakash

et al. 2024

Materialwissenschaft Werkst

View full text Add to dashboard Cite

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“…Additionally, the elongated needle shape of magnesium silicide precipitates is visible in some regions inside the α-grain and at the α-grain boundary, Figure 3. These magnesium and silicon-rich intermetallic phases induce stress concentration deteriorating mechanical properties [26][27].…”

Section: Microstructure Characterization Of Gravity Cast and 5 Weight...mentioning

confidence: 99%

Experimental investigation and optimization of morphological characteristics in mechanically agitated aluminium 6061‐fly ash cenosphere composite

Anand,

Tiwari,

Prakash

2023

Materialwissenschaft Werkst

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The current work examines the results of an experimental study for the liquid casting of an aluminum‐6061‐5 weight % fly ash cenosphere composite by employing stir casting. The studies were conducted using the response surface methodology (central composite design L16 experiments) with three process factors (stirring temperature, stirring speed, and stirring time) at three different levels. An attempt has been made to determine the impact of process variables on the degree of sphericity and particle size. The optimal processing conditions for the best degree of sphericity (0.765) and particle size (93.227 μm) are identified as A−1, B+1, and C+1, corresponding to a stirring temperature of 670 °C, a stirring speed of 600 min−1, and 15 min stirring time. Based on the analysis of variance analysis, the degree of sphericity and particle size evolution is significantly influenced by stirring time followed by temperature and speed. Additionally, a mathematical model for the evaluation of the degree of sphericity and particle size in the primary‐aluminium phase has been developed and it shows good consensus with the experiments.

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“…However, using reinforcement materials such as nitrides, carbides, and borides oxides can present machining challenges and lead to abrasion, cracking, and premature failure. Choosing the best reinforcement material for an aluminum matrix is an ongoing focus for scientists and engineers [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Tribological Behavior of LM26/SiC/Ni-Gr Hybrid Composites

Pawar¹,

Haider

Pintaúde

et al. 2023

J. Compos. Sci.

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The study evaluates the mechanical and wear properties of LM26 alloy and its hybrid composites with silicon carbide (SiC) and nickel-coated graphite (Ni-Gr). LM26 aluminum alloy is generally known for its high strength, wear, and corrosion resistance compared to similar materials such as zinc and magnesium. The effect of Ni-Gr was studied, with 2 wt.% was found to provide the best mechanical properties. LM26 composites reinforced with varying percentages of SiC (0 to 30 wt.%) showed the best properties at 20 wt.% reinforcement after fabrication using a bottom pouring type stir casting setup (Two step feeding method). Evaluation of five hybrid LM26 composites through tensile strength, elongation, hardness, impact, porosity, and thermal studies showed that the LM26/2 wt.% Ni-Gr/20 wt.% SiC configuration showed the best filler composition for improved strength. Sliding wear evaluation using experimental and Taguchi analysis was performed at different configurations to identify the best wear resistance. Microstructure studies showed the presence of Ni-Gr particles forming coatings and temperature playing a significant role in the progression of the wear rate. Furthermore, the hybrid composite with 20% SiC and 2% Ni-Gr reinforcement showed the best wear resistance.

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Wear and Mechanical Properties of In Situ A356/5%TiB2 Composite Synthesis by Cooling Slope Technique

Cited by 10 publications

References 36 publications

Optimization of process variables and characterization of mechanically agitated ceramic‐microsphere reinforced aluminium composite

Optimization of process variables and characterization of mechanically agitated ceramic‐microsphere reinforced aluminium composite

Experimental investigation and optimization of morphological characteristics in mechanically agitated aluminium 6061‐fly ash cenosphere composite

Mechanical and Tribological Behavior of LM26/SiC/Ni-Gr Hybrid Composites

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