Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys

Božić, D.; Dimčić, Biljana; Dimčić, O.; Stašić, J.; Rajković, Višeslava

doi:10.1016/j.matdes.2009.06.047

Cited by 41 publications

(18 citation statements)

References 4 publications

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“…The aluminium matrix composite (AMC) was prepared into four different constituent sizes with 9 wt% silicon carbide particulate (SiCp) and 1% Mg formulations as indicated in Table 1. The chemical composition of the Al 6061 and properties of SiC can be found elsewhere [4]. …”

Section: Methodsmentioning

confidence: 99%

“…The mixed particle size (MPS) influenced greatly on the hardness increment of the AMC. This is due to the fact that mixed particle size (MPS) supports a greater fraction of the applied load while the fine particle size (FPS) and intermediate particle size (IPS) sustain hardening due to dislocation [4]. Moreover, the fine particle sizes (FPS) possess a greater amount of particle-matrix interface which enhances more hardening due to dislocations.…”

Section: Hardness Propertymentioning

confidence: 99%

“…As for the cost effectiveness, particle reinforced composites are more attractive than fibre reinforcements [1][2][3]. Aluminium alloys are very soft and have limited properties in terms of hardness and wear resistance, however, these properties can be relatively made highly resistant by introducing predominantly hard but brittle particles such as SiC, Al2O3, and B4C [4]. Recent researches [5][6][7][8][9] have shown that aluminium matrix composite (AMC) possesses desired potential properties such as high specific strength and stiffness, required wear resistance to withstand abrasive properties compared to monolithic materials which are demanded by automotive and aerospace industries for the tribological application.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Wear study of Mg-SiCp reinforcement aluminium metal matrix composite

Maleque¹,

Radhi²,

Rahman³

2016

J. Mech, Eng, Sci.

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Lightweight aluminium metal matrix composite materials hold potential requisite for modern tribological applications due to its inherent and better wear resistant properties over monolithic metallic materials. This study emphasised on the development of Al based metal matrix composite with SiCp as a reinforcement and magnesium (Mg) as a wetting agent using hybrid stir casting process. The study further analysed the effects of different size variations of silicon carbide particles such as the coarse particle size, fine particle size, intermediate particle size and mixed particle size in the fabrication of the composites on the hardness and wear properties. The pin-on-disc test was also done at room temperature in a dry sliding wear condition. It was observed that the mixed particle size SiCp in composite exhibited superior hardness with the value of 98.2 compared to other particle sizes of SiCp. This is due to the fact that mixed particle size supports a greater fraction of applied load while the fine and intermediate particle sizes sustain the hardening due to dislocation. The multiple particle size reinforced composite exhibits better performance than the single particle size in terms of wear resistance as the wear rate was the lowest with the value of 0.99 X 10 -5 . It can be concluded that the Mg addition in the composite showed better and tailored properties with a mixed particle size of SiCp of aluminium metal matrix composite.

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Section: Methodsmentioning

confidence: 99%

Section: Hardness Propertymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wear study of Mg-SiCp reinforcement aluminium metal matrix composite

Maleque¹,

Radhi²,

Rahman³

2016

J. Mech, Eng, Sci.

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“…Al-based nanocomposites can offer outstanding properties, including low density, high specific strength, high specific stiffness, excellent wear resistance and controllable expansion coefficient, which make them attractive for numerous applications in aerospace, automobile, and military industries field [1][2][3][4][5][6][7][8][9][10][11]. UST has been extensively used in purifying, degassing, and refinement of metallic melt [12][13][14][15][16], mainly because introducing the ultrasonic energy into a liquid will induce cavitation and acoustic streaming.…”

Section: Introductionmentioning

confidence: 99%

EXPERIMENTAL AND MODELING ANALYSES OF Al- BASED NANOCOMPOSITES MANUFACTURED VIA MOLTEN-METAL AND SOLIDIFICATION PROCESSING ASSISTED BY ULTRASONIC STIRRING TECHNOLOGY

Jia¹,

Zhang²,

Nastac³

2018

ABM Proceedings

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Ultrasonic Stirring Technology (UST) is used in this study to manufacture Al-based nano-composites. Ultrasonic cavitation plays an important role in refining the microstructure, dispersing the nanoparticles and breaking up clusters of nanoparticles. In this paper, 6061/A356 alloys and Al2O3/SiC nanoparticles are used as the matrix alloys and the reinforcements, respectively. The nanoparticles were inserted into the molten alloy and dispersed by ultrasonic cavitation and acoustic streaming. A previously developed multiphase Computational Fluid Dynamics (CFD) model was used to study the cavitation and the nanodispersion phenomena during ultrasonic processing of these alloys. A comparison between the mechanical properties of the as-cast 6061 and 356 alloys and nano-composites has been performed.

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“…[1][2][3][4][5][6][7] For example, in material studies, the shape characteristics of second phases and particles have been regarded as important factors affecting materials mechanical behavior. 8 Features such as size, shape, profile roughness and orientation can be estimated by the equivalent diameter, shape factor, fractal dimension and Feret angle. 1,9 In the past decades, researchers have proposed various methods of studying and categorizing shape characteristics.…”

Section: Introductionmentioning

confidence: 99%

Description of shape characteristics through Fourier and wavelet analysis

Yuan

Zhang

et al. 2014

Chinese Journal of Aeronautics

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In this paper, Fourier and Wavelet transformation were adopted to analyze shape characteristics, with twelve simple shapes and two types of second phases from real microstructure morphology. According to the results of Fast Fourier transformation (FFT), the Fourier descriptors can be used to characterize the shape from the aspects of the first eight Normalization amplitudes, the number of the largest amplitudes to inverse reconstruction, similarity of shapes and profile roughness. And the Diepenbroek Roughness was rewritten by Normalization amplitudes of FFT results. Moreover, Sum Square of Relative Errors (SSRE) of Wavelet transformation (WT) signal sequence, including approximation signals and detail signals, was introduced to evaluate the similarity and relative orientation among shapes. As a complement to FFT results, the WT results can retain more detailed information of shapes including their orientations. Besides, the geometric signatures of the second phases were extracted by image processing and then were analyzed by means of FFT and WT.

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Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys

Cited by 41 publications

References 4 publications

Wear study of Mg-SiCp reinforcement aluminium metal matrix composite

Wear study of Mg-SiCp reinforcement aluminium metal matrix composite

EXPERIMENTAL AND MODELING ANALYSES OF Al- BASED NANOCOMPOSITES MANUFACTURED VIA MOLTEN-METAL AND SOLIDIFICATION PROCESSING ASSISTED BY ULTRASONIC STIRRING TECHNOLOGY

Description of shape characteristics through Fourier and wavelet analysis

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