Processing of SiC nano-reinforced AlSi9Cu3 composites by stir mixing, ultrasonication and high pressure die casting

Liu, Guangyu; Karim, Mahfuz; Eskin, Brian McKay Shihao Wang Dmitry

doi:10.1016/j.jmrt.2022.03.132

Cited by 14 publications

(4 citation statements)

References 61 publications

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“…Uniformity in reinforcement distribution is seen in the base matrix; with higher loadings of TiB 2 , higher grey particles are visible [35]. 15% reinforcement of TiB 2 leads to agglomeration due to faster solidification related to the reinforcements and matrix thermal expansion coefficients [36]. Figure 5 presents the optical micrographs of 5, 10 and 15% TiB 2 included casted specimens.…”

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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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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“…These problems most likely occur because of the agglomeration of reinforcing particles, stemming from the uneven distribution of the particles during the production process. According to Guangyu Liu et al 31) , agglomeration can occur during the casting process and decrease the toughness of the material.…”

Section: The Impact Strength Of Aa 7075-reinforced Nano-sicmentioning

confidence: 99%

Characteristic of AA 7075-Reinforced Nano-SiC Composites Produced by Stir-Squeeze Casting and Open Die Cold Forging as An Armor Material Candidate

Adityawardhana¹,

Syahrial²,

Adjiantoro³

2023

Evergreen

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This study presented the ballistic properties and impact strength of the aluminum alloy AA 7075-reinforced nano-SiC composites, which were produced by stir-squeeze casting and forging processes. Ballistic tests revealed that the samples met the National Institute of Justice (NIJ) Type II standard, except for samples that were not forged. The other characteristics examined were microstructural observations analyzed using optical and scanning electron microscopes. As a result of the pinning effect, the microstructure of the samples showed a decrease in grain size as the SiC content increased, except for samples with over 0.25 vf% of nano-SiC. This effect was observed in samples with and without forging. The forging process decreased grain size further, affecting ballistic and mechanical properties. The addition of 0.3 vf% nano-SiC improved the ballistic properties and impact strength, resulting in the highest impact value of 7.7 J, despite higher values of the average ballistic diameter of perforation (about 4.7 mm) and average indentation depth (about 17.22 mm) measured on this sample.

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“…Mixing the matrix and reinforcement powders homogeneously is very important in obtaining the desired properties. The combination of the electrical properties of aluminum with the thermal conductivity and lightness of graphene is used in a wide range of applications such as defense, aviation, spacecraft, and chip production [12] , [13] , [14] .…”

Section: Introductionmentioning

confidence: 99%

An implementation of class D inverter for ultrasonic transducer mixed powder mixture

Taşlıyol,

Öncü,

Turan

2024

Ultrasonics Sonochemistry

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Processing of SiC nano-reinforced AlSi9Cu3 composites by stir mixing, ultrasonication and high pressure die casting

Cited by 14 publications

References 61 publications

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

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

Characteristic of AA 7075-Reinforced Nano-SiC Composites Produced by Stir-Squeeze Casting and Open Die Cold Forging as An Armor Material Candidate

An implementation of class D inverter for ultrasonic transducer mixed powder mixture

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Processing of SiC nano-reinforced AlSi9Cu3 composites by stir mixing, ultrasonication and high pressure die casting

Cited by 14 publications

References 61 publications

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

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

Characteristic of AA 7075-Reinforced Nano-SiC Composites Produced by Stir-Squeeze Casting and Open Die Cold Forging as An Armor Material Candidate

An implementation of class D inverter for ultrasonic transducer mixed powder mixture

Contact Info

Product

Resources

About

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

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