Synthesis and microstructural characterization of Al–Mg alloy–SiC particle composite

Valdez, S.; Campillo, B.; Pérez, R.; Martı́nez, L.

doi:10.1016/j.matlet.2008.01.002

Cited by 50 publications

(27 citation statements)

References 18 publications

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“…The strength of the metal matrix composites (MMC) is expected to increase by addition of solid ceramic particles due to the strengthening effects occurred in particulate reinforced composites. These effects include the transfer of stress from the matrix to the particulate, the interaction between individual dislocations and particulates, grain size strengthening mechanism due to a reduction in composite matrix grain size, and generation of a high dislocation density in the matrix of the composite as a result of the difference in thermal expansion between the metal matrix and particulates [15]- [17].…”

Section: Mechanical Properties Of Compositesmentioning

confidence: 99%

Comparative Studies on Microstructure and Mechanical Properties of Granulated Blast Furnace Slag and Fly Ash Reinforced AA 2024 Composites

Murthy¹,

Babu²,

Rao³

2014

JMMCE

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Composites are most promising materials of recent interest. Metal matrix composites (MMCs) possess significantly improved properties compared to unreinforced alloys. There has been an increasing interest in composites containing low density and low cost reinforcements. In view of the generation of large quantities of solid waste by products like fly ash and slags, the present expensive manner in which it is discarded, new methods for treating and using these solid wastes are required. Hence, composites with fly ash and granulated blast furnace (GBF) slag as reinforcements are likely to overcome the cost barrier for wide spread applications in automotive and small engine applications. In the present investigation, AA 2024 alloy-5 wt% fly ash and GBF slag composites separately were made by stir casting route. Phase identification and structural characterization were carried out on fly ash and GBF slag by X-ray diffraction studies. Scanning electron microscopy with energy dispersive X-ray spectroscopy EDS was used for microstructure analysis. The hardness and compression tests were carried out on all these alloy and composites. The SEM studies reveal that there was a uniform distribution of fly ash and GBF slag particles in the matrix phase and also very good bonding existed between the matrix and reinforcement. Improved hardness and mechanical properties were observed for both the composites compared to alloy; this increase is higher for Al-fly ash composite than Al-GBF slag composite.

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Section: Mechanical Properties Of Compositesmentioning

confidence: 99%

Comparative Studies on Microstructure and Mechanical Properties of Granulated Blast Furnace Slag and Fly Ash Reinforced AA 2024 Composites

Murthy¹,

Babu²,

Rao³

2014

JMMCE

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“…To understand the importance of aluminum and aluminum alloys, their valuable engineering purposes in automotive parts and aircraft components associated with their lightweight should be mentioned [3][4][5][6]. In addition, the aluminum and their alloys possess a good performance, castability, high mechanical strength properties and attractive resistance to electrochemical surface degradation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that the internal microstructure of an alloy controls and modifies the nature, interaction type and properties of the existing defects and final applications [4,25].…”

Section: Introductionmentioning

confidence: 99%

Solidification Physics and Microstructure: A Study of AlMg and AlMgSi Alloys by Vortex Method

Rodríguez¹,

Martı́nez²,

Canul³

2018

Solidification

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Physical properties on solidification process deal with the internal atomic arrangement, named generally microstructure. The microstructure characteristic is essential for the properties of metallic materials, including binary, ternary or eutectic alloys. Thus, despite significant progress on microstructural evolution, numerous challenges still exist for revealing the internal structure to act synergistically with matrix alloy chemical components. It is well known that the internal microstructure of an alloy controls and modifies the nature, interaction type and properties of the existing defects and final applications.At this point, necessary understanding of the correlation between equilibrium and nonequilibrium effects, surface energy and chemical potential for the time of the structures formation is probably the key to solidification that can help to predict the complex of microstructures. For the case of multi-phase solidification, AlMgSi alloy involves thousands of atoms, at the atomic scale, that transit to microstructures while the solid-liquid phase transformation occurs. This chapter outlines the role of solidification physics, and the atomic arrangement is believed to have in influencing mechanical hardness properties and degradation resistance.

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“…In this method, the matrix alloy is first melted, and the SiC particles are subsequently added to the melt, or the melt is added to a previously prepared SiC body. One disadvantage of this method is the heterogeneous distribution of the SiC particles in the matrix [5][6][7][8][9][10][11][12]. The powder metallurgy (PM) method, as one of the advanced preparation methods, is also commonly used to prepare SiC particle reinforced AlMg-based composite materials [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Yan et al [16] studied the influence of SiC particle contents (25~35 vol.%) on a SiC/Al-1.0Mg-0.6Si-0.2Cu (mass%) composite. It showed that the densification, thermal expansion coefficient of the composite and the tensile strength of the composite decreased with the increasing SiC particle content.The microstructure and properties of SiC particle reinforced PM Al-Mg-based composites are affected by the particle size and volume fraction of the SiC particles, the matrix alloy composition and the sintering process employed [7,9,10,12,15]. Subsequent thermomechanical treatment processes also have an effect on the mechanical properties of composite material, such as the solution treatment process [11].…”

mentioning

confidence: 99%

Microstructure, Mechanical Properties and Corrosion Behavior of As-Extruded PM Sicp/Al-Mg-Cu-Sn Composites

Rj¹,

Dh²,

Pf³

et al. 2016

J Powder Metall Min

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IntroductionAluminum matrix composites reinforced by SiC particles are widely used in aviation, aerospace, automotive, electronics, and other fields due to their high specific strength and specific stiffness, excellent wear resistance, and low density. Research efforts regarding such composites have been primarily focused on the characteristics of SiC particles, aluminum matrix selection, and the effect of the preparation process on the structure and performance of the composites [1][2][3][4][5][6][7].Al-Mg alloys are one type of the aluminum alloys that can be heat strengthened, and are widely used as automotive body panel material. The microstructure and properties of the alloys can be further controlled by micro-alloying with Si and Cu elements. In general, SiC particle reinforced Al-Mg-based composites are prepared by casting methods, including infiltration casting, transfer molding and gravity casting method, etc. In this method, the matrix alloy is first melted, and the SiC particles are subsequently added to the melt, or the melt is added to a previously prepared SiC body. One disadvantage of this method is the heterogeneous distribution of the SiC particles in the matrix [5][6][7][8][9][10][11][12]. The powder metallurgy (PM) method, as one of the advanced preparation methods, is also commonly used to prepare SiC particle reinforced AlMg-based composite materials [13][14][15][16][17]. Asgharzadeh studied the effect of the SiC content on the SiC distribution and microstructure during the sintering process of a SiC/Al-1.0Mg-0.6Si-0.2Cu-0.1Fe (mass%) composite [15]. Their results indicated that SiC particles reduced the sintering density of the composite. Yan et al. [16] studied the influence of SiC particle contents (25~35 vol.%) on a SiC/Al-1.0Mg-0.6Si-0.2Cu (mass%) composite. It showed that the densification, thermal expansion coefficient of the composite and the tensile strength of the composite decreased with the increasing SiC particle content.The microstructure and properties of SiC particle reinforced PM Al-Mg-based composites are affected by the particle size and volume fraction of the SiC particles, the matrix alloy composition and the sintering process employed [7,9,10,12,15]. Subsequent thermomechanical treatment processes also have an effect on the mechanical properties of composite material, such as the solution treatment process [11]. However, the effects of solution treatment temperature and SiC particle on SiC/Al-Mg-Cu-Sn composites are not reported in the literature. This work is purposed to study the effects of solution treatment temperature and SiC particle contents on the microstructure, mechanical properties and corrosion behavior of PM SiC/Al-Mg-CuSn composites. Experimental MethodsSpherical Al-0.64 Mg-0.60 Cu-0.36 Sn-0.22 Fe-0.18 Zn-0.04 Si (mass%) powder (Taigang Group Aluminium Powder Co., China) and SiC particles (99.6%) (Xuzhou Jiechuang New Material Technology Co., China) were used as the raw materials. The average diameters of the matrix alloy powders and SiC particles are 20 μ...

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Synthesis and microstructural characterization of Al–Mg alloy–SiC particle composite

Cited by 50 publications

References 18 publications

Comparative Studies on Microstructure and Mechanical Properties of Granulated Blast Furnace Slag and Fly Ash Reinforced AA 2024 Composites

Comparative Studies on Microstructure and Mechanical Properties of Granulated Blast Furnace Slag and Fly Ash Reinforced AA 2024 Composites

Solidification Physics and Microstructure: A Study of AlMg and AlMgSi Alloys by Vortex Method

Microstructure, Mechanical Properties and Corrosion Behavior of As-Extruded PM Sicp/Al-Mg-Cu-Sn Composites

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