The dynamic properties of SiCp/Al composites fabricated by spark plasma sintering with powders prepared by mechanical alloying process

Zhang, Jiangtao; Shi, Hui‐Ji; Cai, Ming-Chun; Liu, Lisheng; Zhai, Pengcheng

doi:10.1016/j.msea.2009.08.067

Cited by 52 publications

(9 citation statements)

References 31 publications

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“…The results are shown in Figure 12, from which it can be seen that particles in the two cases showed varying degrees of damage. Specifically, the fraction of failed particles at an applied strain of 20% was about 21.8%, and it increased rapidly to about 48.8% as the applied strain increased to 50%, indicating that the probability of particle failure tended to increase with increasing applied strain, which is consistent with previously reported experimental results [21,32]. In addition, through a closer To study the influence of deformation on the microscopic failure mechanisms in the composite, SEM images of the longitudinal section of specimens after experiments (~4500 s −1 ) at different applied strains under the room temperature condition were extensively investigated.…”

Section: Microscopic Failure Mechanismssupporting

confidence: 91%

High-Temperature Compressive Response of SiCp/6092Al Composites under a Wide Range of Strain Rates

Suo

Deng

et al. 2021

Materials

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The high-temperature dynamic compressive properties of a 30 vol.% SiCp/6092Al composite, fabricated using powder metallurgy, were experimentally investigated using the split Hopkinson pressure bar system with an electric furnace. Three different ambient temperatures, namely, room temperature, 200 °C, and 350 °C, were adopted, and the dynamic tests of the composite specimens were conducted at strain rates ranging from 1500 to 4500 s−1. The experimental results showed that the flow stress of the composite was generally insensitive to strain rates at room temperature. However, the composite started exhibiting different strain-rate-dependent behaviors as the temperature increased, and the flow stress nonlinearly varied with increasing temperature. In addition, the microscopic images of the specimens showed that the microscopic failure mechanisms of the composite were greatly influenced by the ambient temperature and strain rate. Specifically, the percentage of failed particles decreased with rising temperature and the dominating failure mode of particles changed significantly as the strain rate increased.

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Section: Microscopic Failure Mechanismssupporting

confidence: 91%

High-Temperature Compressive Response of SiCp/6092Al Composites under a Wide Range of Strain Rates

Suo

Deng

et al. 2021

Materials

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“…SiC is suitable for reinforcing aluminum because of its thermodynamic stability and good wettability with Al [27][28][29]. Al-based nanocomposites have successfully been synthesized by mechanical milling and spark plasma sintering [13,[30][31][32]. The development of Al-SiC nanocomposites has not been fully explored despite the potential of SiC nanoparticles to improve the properties of Al matrix.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Aliyu

Saheb²,

Hassan³

et al. 2015

Metals

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Abstract:The low hardness and strength of aluminum, which limits its use in many industrial applications, could be increased through the addition of nanoparticles. However, the appropriate processing method and parameters should be carefully selected in order to achieve the desired improvement in properties. In this work, aluminum was reinforced with low weight fraction (1 wt.%) of SiC nanoparticles and consolidated through spark plasma sintering. The effect of processing parameters on the densification, microstructure, and properties of the processed material was investigated. Field Emission Scanning Electron Microscope (FE-SEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS) facility was used to characterize the microstructure and analyze the reinforcement's distribution in sintered samples. Phases present were characterized through X-ray diffraction (XRD). A densimeter and a digital microhardness tester were used to measure the density and hardness, respectively. Compressive tests were performed using universal testing machine. A fully dense Al-1 wt.% SiC sample was obtained. Analysis of density and hardness values showed that the influence of applied pressure was more pronounced than heating rate while the influence of sintering temperature was more significant than sintering time. Within the range of parameters used, the highest values of the characterized properties were obtained at a sintering temperature of 600 °C, sintering time of 10 min, pressure of 50 MPa, and heating rate of 200 °C/min. OPEN ACCESSMetals 2015, 5 71

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“…The effects of matrix materials, fabricating processes and the type, size, distribution and shape of the particles on the strength and damage mechanism of MMCs have been considered. It has been recognized that the uniform spatial distribution of the particles in the matrix is essential for improving the mechanical and physical properties of MMCs (Liu et al, 2010;Zhang et al, 2009). The most interesting materials commercially utilize SiC, Al 2 O 3 , or B 4 C particles incorporated into the aluminum matrix by a variety of processes, including powder metallurgy (P/M).…”

Section: Introductionmentioning

confidence: 99%

Effect of the graphite content on the tribological properties of hybrid Al/SiC/Gr composites processed by powder metallurgy

Zeren

2015

Industrial Lubrication and Tribology

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Purpose -The purpose of this paper is to understand the effect of graphite content on the properties of aluminum alloy/silicon carbide/granite (Al/SiC/Gr) composites. Design/methodology/approach -Hardness and wear tests were applied to the powder metallurgical composites, and microstructural characterization was conducted. Findings -Optimum graphite content for maximum wear resistance is reported as weight 6 per cent. Originality/value -Results of this study may help light weight Al/SiC/Gr composites to be used in different industrial applications.

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The dynamic properties of SiCp/Al composites fabricated by spark plasma sintering with powders prepared by mechanical alloying process

Cited by 52 publications

References 31 publications

High-Temperature Compressive Response of SiCp/6092Al Composites under a Wide Range of Strain Rates

High-Temperature Compressive Response of SiCp/6092Al Composites under a Wide Range of Strain Rates

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Effect of the graphite content on the tribological properties of hybrid Al/SiC/Gr composites processed by powder metallurgy

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