Effect of SiC Particles on Fatigue Crack Growth Behavior of SiC Particulate-reinforced Al-Si Alloy Composites Produced by Spray Forming

Li, W.; Liang, Hao; Chen, J.; Zhu, S.Q.; Chen, Y.L.

doi:10.1016/j.mspro.2014.06.273

Cited by 21 publications

(13 citation statements)

References 13 publications

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“…These modified JC models can well describe the stress-strain characteristics of theirs materials. The expression of the most widely used in these provided modified JC models is shown in equation (13). To determine whether this modified JC model is suitable for spray-deposition SiCp/ 7055Al composites, the equation (13) is verified.…”

Section: Modified Johnson-cook Modelmentioning

confidence: 99%

“…Rearrange equation (13) and take natural logarithm on both sides, could be obtained equation (17) * obtained from the slopes of those graphs. As shown in figure 10, when the strain rates are 0.001 s −1 , 0.01 s −1 , and 0.1 s −1 , the values of  l l e + ln 1 2 * are obtained as −0.0084, −0.0067, −0.0056, respectively.…”

Section: Modified Johnson-cook Modelmentioning

confidence: 99%

“…In recent decades, domestic and foreign scholars have fabricated SiCp/Al composites based on spraydeposition and conduct relevant research [11][12][13]. However, existing researches mainly focus on mechanical properties, the interface effects on the mechanical properties and static deformation characteristics [14,15].…”

Section: Introductionmentioning

confidence: 99%

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A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

Tang

Wang

Jin

et al. 2020

Mater. Res. Express

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In this study, the dynamic impact tests of spray-deposited 17 vol% SiCp/7055Al composites at various strain rates were performed with a Split Hopkinson Pressure Bar (SHPB). In these tests, the strain rate was 392 s −1 -2002 s −1 , and the temperature was 293 K-623 K. Subsequently, the Johnson-Cook (JC) was used to describe the flow behaviors under high speed impact deformation, and its effectiveness was assessed. Results show that the stress values predicted by the JC model could be inconsistent with the experimental ones. A modified JC constitutive model of 17 vol% SiCp/7055Al composites was developed by modifying the strain rate hardening term and considering coupling effects of strain, temperature and strain rate. According to the comparison between the experimental data and the results assessed with the modified JC model, the proposed model could assess the stress-strain values more accurately, especially in the beginning of plastic deformation. This indicates that the composites exert the joint effects of strain rate hardening and temperature softening during high-speed impact deformation.

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Section: Modified Johnson-cook Modelmentioning

confidence: 99%

Section: Modified Johnson-cook Modelmentioning

confidence: 99%

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A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

Tang

Wang

Jin

et al. 2020

Mater. Res. Express

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“…The occurrence of particle fracture is usually insignificant at smaller crack sizes but it rises with the rise of maximum stress intensity and becomes constant during fast fracture (Kumai et al, 1990;Shang et al, 1988;Sugimura & Suresh, 1992). Li et al, (Li, Liang, Chen, Zhu, & Chen, 2014) mentioned that smaller SiC particles (4.5 μm) displayed higher resistance to fatigue crack compare to the composite with 20 μm SiC particles and unreinforced alloy. The crack in 4.5 μm reinforced SiC particles induced higher level of fatigue crack closure which reduce crack growth.…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that cracks due to fatigue usually start from free surface (Li et al, 2014) as it undergoes maximum loading and thus the free surfaces generated from diverse machining processes show wide range of fatigue behaviour (Zlatin and Field 1973). Therefore, machining induced residual stresses, surface morphology microstructure (phases, plastic deformation, tears, voids, pits, burrs, cracks etc.…”

Section: Introductionmentioning

confidence: 99%

Fracture and fatigue life of Al-based MMCs machined at different conditions

Pramanik

Basak

2018

Engineering Fracture Mechanics

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This study investigates fracture and fatigue performance of metal matric composites (MMCs) without any reinforcement and, 0.7 and 13 µm particle (10 vol. %) reinforced which were machined at different feeds and speeds. Fractured surface as well as fatigue generated cracks were investigated in details. The effect of interactions among input machining parameters with their variations on fatigue life has also been analysed. It was found that fatigue cracks don't follow machining traces. Moreover, the cracks are almost straight and sharp when reinforcing particles are smaller but change the course, and surface along the crake is highly damaged when the reinforced particles are bigger. The appearance of fractured surfaces of the samples are very similar regardless of particles size and machining conditions. Though compressive residual stress is generated on the machined MMC surfaces, fatigue life of MMCs are much shorter than that of corresponding matrix material due to the fracture and detachment of reinforcing particles from matrix. Fatigue life has an initial decreasing trend with the rise of feed-rate and then it increases significantly with further increase of feed-rate in the absence of particles machine at low speed. However, fatigue life remains almost constant with the increase of feed-rate for larger particle reinforced MMC machined at high speed. With the increase of speed, opposite trends on fatigue life were noticed for MMCs and matrix material when machined at low and high feeds, respectively. The larger reinforced particles reduces the fatigue life of machined specimens at every interacting combinations of parameters.

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Microstructure and Properties of SiC _p /Al Matrix Composite Strip Fabricating by Twin‐Roll Casting Process

Huang¹,

Lv²,

Song³

et al. 2016

Magnesium Technology 2016

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Effect of SiC Particles on Fatigue Crack Growth Behavior of SiC Particulate-reinforced Al-Si Alloy Composites Produced by Spray Forming

Cited by 21 publications

References 13 publications

A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

Fracture and fatigue life of Al-based MMCs machined at different conditions

Microstructure and Properties of SiC _p /Al Matrix Composite Strip Fabricating by Twin‐Roll Casting Process

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Effect of SiC Particles on Fatigue Crack Growth Behavior of SiC Particulate-reinforced Al-Si Alloy Composites Produced by Spray Forming

Cited by 21 publications

References 13 publications

A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

A modified Johnson-Cook model for dynamic behavior of spray-deposition 17 vol.% SiCp/7055Al composites at high strain rates

Fracture and fatigue life of Al-based MMCs machined at different conditions

Microstructure and Properties of SiC p /Al Matrix Composite Strip Fabricating by Twin‐Roll Casting Process

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Microstructure and Properties of SiC _p /Al Matrix Composite Strip Fabricating by Twin‐Roll Casting Process