Influence of high B4C contents on structural evolution of Al-B4C nanocomposite powders produced by high energy ball milling

Guo, Hao; Zhao, Yuliang; Xu, Shijie; Li, Junpeng; Liu, Naimeng; Zhang, Yang; Zhang, Zhongwu

doi:10.1016/j.ceramint.2018.11.247

Cited by 22 publications

(5 citation statements)

References 43 publications

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“…This broadening of the XRD peaks indicates grain refinement and an accumulation of lattice strain in the composite powder particles as the volume fraction of the reinforcement content increases. According to the literature, the smaller grain size of the powder particles results in lower peak heights and broadened peak intensities [1,39,43]. The influence of milling time on the crystallite size and lattice strain of AA2017 + SiCp composite powder with various amounts of SiC reinforcement is presented in Figure 9.…”

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 87%

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 97%

“…Then, longer milling times lead to more dislocations and high plastic deformations, which enhance the misorientations between sub-grains at their boundaries. Eventually, the lower angle sub-boundaries progressively transform into the higher angle, and ultrafine grains with sizes in the nano-range are formed [41,43]. In addition, the presence of non-deformable and hard SiC particles and the interaction with dislocations accelerate the grain refinement process.…”

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 99%

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Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Gasha,

Trautmann,

Wagner

2024

Materials

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The influence of milling time and volume fraction of reinforcement on the morphology, microstructure, and mechanical behaviors of SiCp-reinforced AA2017 composite powder produced by high-energy ball milling (HEBM) was investigated. AA2017 + SiCp composite powder with different amounts of SiC particles (5, 10, and 15 vol%) was successfully prepared from gas-atomized AA2017 aluminum alloy powder with a particle size of <100 μm and silicon carbide (SiC) powder particles with an average particle size of <1 μm. An optical microscope (OM), X-ray diffraction (XRD), and scanning electron microscope (SEM) were utilized to characterize the microstructure of the milled composite powder at different milling periods. The results indicated that the SiC particles were homogeneously distributed in the AA2017 matrix after 5 h of HEBM time. The morphology of the particles transformed from a laminar to a nearly spherical shape, and the size of the milled powder particles reduced with increasing the content of SiC particles. The XRD analysis was carried out to characterize the phase constituents, crystallite size, and lattice strain of the composite powders at different milling periods. It was found that with increasing milling time and SiC volume fraction, the crystallite size of the aluminum alloy matrix decreased while the lattice strain increased. The average crystallite sizes were reduced from >300 nm to 68 nm, 64 nm, and 64 nm after 5 h of milling, corresponding to SiC contents of 5, 10, and 15 vol%, respectively. As a result, the lattice strain increased from 0.15% to 0.5%, which is due to significant plastic deformation during the ball milling process. XRD results showed a rapid decrease in crystallite size during the early milling phase, and the minimum grain size was achieved at a higher volume fraction of SiC particles. Microhardness tests revealed that the milling time has a greater influence on the hardness than the amount of SiC reinforcements. Therefore, the composite powder milled for 5 h showed an average microhardness three times higher than that of other unmilled powder particles.

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Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 87%

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 97%

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powdersmentioning

confidence: 99%

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Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Gasha,

Trautmann,

Wagner

2024

Materials

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“…Aluminium matrix composites (MMCs) have received considerable attention in the automotive, aerospace and nuclear industries due to their lightweight, as well as their superior thermal conductivity, high stiffness and hardness [1][2][3]. B 4 C is ideal reinforcement with excellent mechanical properties, chemical stability and thermal neutron absorption capacity [4][5][6]. Owing to the high stiffness, lightweight and the superior neutron absorption capacity, Al-B 4 C composite has been increasingly used as an ideal neutron absorber material [7,8].…”

Section: Introductionmentioning

confidence: 99%

Corrosion behaviour of bioinspired laminated Al matrix composite hybrid reinforced with B₄C and graphene nanoplatelets

Wang

Jiang

Sun

et al. 2023

Corrosion Engineering, Science and Technology

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Electrochemical corrosion tests (2500 ppm H 3 BO 3 and 3.5 wt-% NaCl + 2500 ppm H 3 BO 3 solution), salt spray tests and associated microstructure analysis were conducted to investigate the corrosion behaviours of bioinspired Al-xB 4 C-1GNPs laminated composites. The low porosity, defects and tightly bonded interface contribute to the high corrosion resistance. The increase of B 4 C content increased the corrosion potential and decreased the corrosion current density. The Al-5B 4 C-1GNPs has the highest corrosion resistance in NaCl + H 3 BO 3 solution, the corrosion rate is 0.00459 mm/a. The laminated composites have better corrosion resistance in X plane than that in Z plane. The GNPs can prevent the Al matrix underneath it from contacting with solution and O 2 . The laminated structure and orientation of GNPs can effectively change the corrosion pathway and prevent the corrosion crack propagating longitudinally into the composite.

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“…Guo et al [9] investigated the influence of ball-milled B 4 C nanoparticles on Al-B 4 C nanocomposite powders and, from the results, the size of matrix powder was found to be decreased with an increase of wt.% of B 4 C and milling time. Further, the grain and crystallite sizes were found to be decreased with increased B 4 C particle content, along with a transformation to nanograin equiaxed morphology.…”

Section: Introductionmentioning

confidence: 99%

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

et al. 2022

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Aluminum-based metal matrix composites with single or multiple ceramic reinforcements are finding application in the aerospace and automobile industries. In this research work, novel AA7150-B4C (aluminium7150 alloy–Boron carbide) nanocomposites were successfully fabricated, through the liquid metallurgy route via stir casting method, with the incorporation of B4C nanoparticles with different weight percentages using a novel sequence of a vortex technique and a double stir casting process with ultrasonication. The formed composites have been thoroughly studied for microstructure refinement, nano-particulate distribution, and bonding with the matrix by making use of the optical microscopy (OM) and scanning electron microscopy (SEM) studies (respectively). In addition, the composites were analyzed for the density, porosity, and elemental composition. Further, the composites were tested for the investigation of mechanical properties, like micro-hardness and tensile strength, to investigate the influence of ultrasonic vibration on the arrangement of B4C nano-particulates. The analysis indicated that the mechanical properties of the AA7150-B4C nanocomposites in as-cast condition significantly improved with a gain of 57.7% in strength and 24.5% in hardness compared to the native AA7150 material.

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Influence of high B4C contents on structural evolution of Al-B4C nanocomposite powders produced by high energy ball milling

Cited by 22 publications

References 43 publications

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Corrosion behaviour of bioinspired laminated Al matrix composite hybrid reinforced with B₄C and graphene nanoplatelets

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

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Influence of high B4C contents on structural evolution of Al-B4C nanocomposite powders produced by high energy ball milling

Cited by 22 publications

References 43 publications

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Corrosion behaviour of bioinspired laminated Al matrix composite hybrid reinforced with B4C and graphene nanoplatelets

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

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Product

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Corrosion behaviour of bioinspired laminated Al matrix composite hybrid reinforced with B₄C and graphene nanoplatelets