Effect of processing routes on structure-property correlationship of ADC 12 Al alloy

Gautam, Sujeet Kumar; Roy, Himadri; Lohar, Aditya Kumar; Samanta, Sudip Kumar; Sutradhar, Goutam

doi:10.1088/2053-1591/aaec2c

Cited by 14 publications

(5 citation statements)

References 24 publications

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“…This microstructure is characteristic of ADC 12 alloys and is the baseline for comparisons. A similar observation was found in the micrograph of ADC 12 reported in the work of Gautam et al [75] and Okayasu et al [76]. Figure 9(b) shows the microstructure of ADC with 6 wt% LG, where several dark regions appeared.…”

Section: Effect Of Lg and Hbn On Microstructural Analysis Of Hybrid A...supporting

confidence: 85%

Fabrication and characterization of ADC-12 hybrid composites utilizing lemon grass ash and boron nitride through stir-squeeze casting method

Palanivendhan,

Chandradass

2023

Mater. Res. Express

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In recent years, there has been increased interest in hybridizing metal matrix composites using agro-based-waste materials as sustainable choices. Despite the poor tribo-mechanical properties of conventional reinforcement materials, there is immense potential for using alternate reinforcing elements to enhance the mechanical features of matrix composite. In addition, conventional casting procedures present several challenges, including high costs and a lack of adequate mechanical qualities in the finished product. To combat these issues, the authors herein produce the well-known aluminium matrix composite (AMC), ADC 12 alloy, using waste Malabar lemon grass (MLG) ash at a fixed rate (6 wt%) and hexagonal Boron Nitride (hBN) at variable proportions (0, 1.5, 3, 4.5, and 6 wt%) as reinforcing element against traditional reinforcement particles to enhance the tribo-mechanical properties of casted hybrid AMC. In addition, the squeeze casting method produces the hybrid AMC, dramatically decreasing production costs and enhancing final product qualities. The hybrid AMC formed by squeeze casting is examined for its mechanical, corrosion, and tribological characteristics, with the findings indicating that the addition of MLG and hBN improved the mechanical, corrosion, and tribological properties of the ADC-MLG-hBN composites, with 6wt% MLG and 4.5wt% hBN reinforcements producing the optimal result. The experimental density of ADC-MLG- hBN composites was reduced by 8% when compared to the ADC 12 alloy, while the composites' tensile, hardness, and compressive strength were increased by 118.9%, 36.7%, and 33.6%, respectively. Similarly, the developed composite showed an improved corrosion resistance of 43.8% for 24 hours, and the wear rate decreased by 90.4%.

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Section: Effect Of Lg and Hbn On Microstructural Analysis Of Hybrid A...supporting

confidence: 85%

Fabrication and characterization of ADC-12 hybrid composites utilizing lemon grass ash and boron nitride through stir-squeeze casting method

Palanivendhan,

Chandradass

2023

Mater. Res. Express

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“…Finer grain size and sphericity is the prime factor influencing the mechanical characteristics of the composite cast. Similar phenomena have been described in the literature [26]. The other remaining significant parameters indicate the main effect of stirring temperature, stirring speed, and two levels of the interaction effect of parameters having a secondary contribution to the particle size.…”

Section: Analysis Of Variancesupporting

confidence: 85%

“…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%

“…The inflection points in this graph can be explained by the fact that the inner wall of the mold will heat up at high temperatures (690 °C), decreasing the chilling action and lowering the nucleation ratio, Figure 5a. Moreover, the grains have more time to grow, which makes the primary phase coarser and more elongated [26]. At low temperatures (670 °C), the melt temperature in the stir cast rapidly drops below the liquidus temperature, facilitating nucleation.…”

Section: Effect Of Stirring Temperature On the Degree Of Sphericity A...mentioning

confidence: 99%

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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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“…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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Effect of processing routes on structure-property correlationship of ADC 12 Al alloy

Cited by 14 publications

References 24 publications

Fabrication and characterization of ADC-12 hybrid composites utilizing lemon grass ash and boron nitride through stir-squeeze casting method

Fabrication and characterization of ADC-12 hybrid composites utilizing lemon grass ash and boron nitride through stir-squeeze casting method

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

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

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