A comparison study of applying metallic coating on SiC particles for manufacturing of cast aluminum matrix composites

Mousavian, R. Taherzadeh; Damadi, S. R.; Khosroshahi, R. Azari; Brabazon, Dermot; Mohammadpour, Mahdi

doi:10.1007/s00170-015-7246-4

Cited by 32 publications

(15 citation statements)

References 35 publications

(39 reference statements)

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“…The particle size of the coarse SiC powders was decreased by increas-ing the milling time. However, fine micron SiC particles around [10][11][12][13][14][15][16][17][18][19][20] μm were detected even after 36 h milling, indicating that not all of the large particles converted to submicron and nanoparticles at prolonged milling time.…”

Section: Discussionmentioning

confidence: 99%

“…An economical way of producing metal-matrix composites is the incorporation of the particles into the liquid or semi-solid metal and casting [19][20][21][22]. Semi-solid stir casting process transforms from dendritic to globular the phase structure such that fine ceramic particles can be mechanically trapped in within a highly viscous aluminum melt [23,24].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of aluminum matrix composites reinforced with nano- to micrometer-sized SiC particles

et al. 2016

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ab s t r a c tIn this study, the hot extrusion process was applied to stir cast aluminum matrix-SiC composites in order to im-prove their microstructure and reduce cast part defects. SiC particles were ball milled with Cr, Cu, and Ti as three forms of carrier agents to improve SiC incorporation. Large brittle ceramic particles (average particle size: 80 μm) were fragmented during ball-milling to form nanoparticles in order to reduce the cost of composite manufactur-ing. The experimental results indicate that full conversion of coarse micron sized to nanoparticles, even after 36 h of ball milling, was not possible. Multi modal SiC particle size distributions which included SiC nanoparticles were produced after the milling process, leading to the incorporation of a size range of SiC particle sizes from about 50 nm to larger than 10 μm, into the molten A356 aluminum alloy. The particle size of the milled powders and the amount of released heat from the reaction between the carrier agent and molten aluminum are inferred as two crucial factors that affect the resultant part tensile properties and microhardness.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of aluminum matrix composites reinforced with nano- to micrometer-sized SiC particles

et al. 2016

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“…In the semi-solid state, the slurry of metal is subjected to shear stress by means of several techniques such as stir casting, MHD 1 , etc. [12][13][14][15][16][17]. Fan et al [18,19] have developed a new SSM processing technology named twin-screw rheoextrusion.…”

Section: Introductionmentioning

confidence: 99%

Rheo-Extrusion of an Alloy Specially Developed for Rheo Process Based on Al–Zn–Mg–Cu System

Damadi

Khosroshahi

2016

Trans Indian Inst Met

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This study has been directed towards developing 7xxx aluminum alloy for rheo-extrusion. Rheo extrusion was done by a co-rotating twin-screw extruder as a new semi-solid process for production of 7xxx aluminum alloys with high integrity. A super high-strength aluminum alloy was thermodynamically developed with nominal composition of Al-14Zn-9Mg-5.2Cu. The rheo-formability of alloy had been assessed by thermodynamic criteria and mechanical properties. The newly developed alloy showed good rheo-formability in terms of low temperature sensitivity of solid phase and reasonable mechanical properties. The results showed that optimized mechanical properties and microstructure was obtained at 0.6 solid fraction and 450 rpm for screws. The average grain size changed from 300 by conventional casting to 16 lm by rheo-extrusion process, also shape factor changed from 0.3 to 0.9. The mechanical properties of the rheo-extruded samples at these conditions were: UTS of 682, 621 MPa 0.2 % proof stress and 10 % elongation. Furthermore grain coalescence and columnar growth of solid/liquid interface were the main mechanisms that could deteriorate the rheo-formability. Also results showed that increasing of rotation speed could refine grain size and eliminate the grain coalescence but could not overcome instability of interface.

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“…Aluminum metal matrix composites (MMCs) are the most significant materials in aerospace and automotive industries due to their superior mechanical properties [1][2][3][4][5][6][7][8][9][10][11]. A variety of methods have been used for synthesizing these composites, but the liquid-state route is the simplest technique with lower cost [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Empirical model to predict mass gain of cobalt electroless deposition on ceramic particles using response surface methodology

et al. 2015

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This investigation was undertaken to predict the mass gain (MG) of cobalt electroless deposition (ED) on ceramic SiC particles. Response surface methodology (RSM) based on a full factorial design with three ED parameters and 30 runs was used to conduct the experiments and to establish a mathematical model by means of Design-Expert software. Three ED parameters considered were pH, bath temperature and ceramic particle morphology. Analysis of variance was applied to validate the predicted model. The results of confirmation analysis by scanning electron microscopy (SEM) show that the developed models are reasonably accurate. The pH is the most effective parameter for the MG. Also, the highest mass gain is obtained for the lowest pH, highest bath temperatures and heat-treated SiC particles. In addition, the developed model shows that the optimal parameters to get a maximum value of mass gain are pH, bath temperature and ceramic particle state of 8, 70°C and heat treatment, respectively.

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A comparison study of applying metallic coating on SiC particles for manufacturing of cast aluminum matrix composites

Cited by 32 publications

References 35 publications

Fabrication of aluminum matrix composites reinforced with nano- to micrometer-sized SiC particles

Fabrication of aluminum matrix composites reinforced with nano- to micrometer-sized SiC particles

Rheo-Extrusion of an Alloy Specially Developed for Rheo Process Based on Al–Zn–Mg–Cu System

Empirical model to predict mass gain of cobalt electroless deposition on ceramic particles using response surface methodology

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