Low-cycle fatigue behavior of SiCp/Al–Si composites produced by spray deposition

Li, Wengui; Chen, Z.H.; Chen, D.; Teng, Jie; Fan, Changzheng

doi:10.1016/j.msea.2010.08.017

Cited by 16 publications

(5 citation statements)

References 20 publications

(18 reference statements)

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“…This is probably occurring because of increasing the SiCp content in the matrix cause highly localized plastic strain 114 Materials and Technologies in Precision Machinery II [10]. Similar results were found in previously in different aluminum composites systems with increasing ceramic particles volume fraction through low cycle fatigue analysis [11,12]. Next, the 2% SiCp reinforced SiCp/AZ61 MMCs of fatigue specimens showed the shortest fatigue life relative to pure AZ61 and 1% SiCp/AZ61 MMCs.…”

Section: Resultssupporting

confidence: 76%

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Huang

Subramani

Ali

et al. 2020

KEM

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To evaluate the fatigue behaviors of AZ61 magnesium alloy with different weight percentages (0, 1 and 2) of silicon carbide particles (SiCp) were fabricated through gravity casting method. In addition, stress-controlled low-cycle fatigue test of SiCp reinforced magnesium alloys AZ61 were performed in ambient atmosphere at room temperature using ASTM 606 standard specimens. Fatigue measurement results proved, that the fatigue life of SiCp reinforced metal matrix composites (MMCs) decreased with increasing SiCp content. However, the results of the cyclic ductility decreased owing to the presence of significant amount of SiCp, which induces the brittleness of fatigue properties. This is probably occurring because of increasing the SiCp content in the matrix causes highly localized plastic strain. In addition, a high concentration of stress results around the reinforcements particles regions initiate the crack leading to rapid failure of MMCs. Therefore, the SiCp did not act as a stress reliever and it behaves in a brittle manner for the crack propagation through the particles.

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Section: Resultssupporting

confidence: 76%

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Huang

Subramani

Ali

et al. 2020

KEM

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“…While for 4.5μmSiC p /Al-20Si composite, the average size of primary Si phase is 7.85 μm and the shape is more random. More details about microstructure have been reported in previous investigations [25,26].…”

Section: Resultsmentioning

confidence: 86%

Thermomechanical Fatigue Behavior of Spray-Deposited SiC_p/Al-Si Composite Applied in the High-Speed Railway Brake Disc

Chen

Zuo

et al. 2020

International Journal of Photoenergy

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The thermomechanical fatigue (TMF) behaviors of spray-deposited SiCp-reinforced Al-Si alloy were investigated in terms of the size of Si particles and the Si content. Thermomechanical fatigue experiments were conducted in the temperature range of 150-400°C. The cyclic response behavior indicated that the continuous cyclic softening was exhibited for all materials, and the increase in SiC particles size and Si content aggravated the softening degree, which was attributed to dislocation generation due to differential thermal contraction at the Al matrix/Si phase interface or Al matrix/SiC particle interface. Meanwhile, the TMF life and stress amplitude of SiCp/Al-7Si composites were greater than those of Al-7Si alloy, and increased with the increasing SiC particle size, which was associated with “load sharing” of the direct strengthening mechanism. The stress amplitude of 4.5μmSiCp/Al-Si composite increased as the Si content increased; however, the influence of Si content on the TMF life was not so significant. The TMF failure mechanism revealed that the crack mainly initiated at the agglomeration of small-particulate SiC and the breakage of large-particulate SiC, and the broken primary Si and the exfoliated eutectic Si accelerated the crack propagation.

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“…Compared with traditional methods, spray deposition technology has the advantages of a simple process, low segregation, a high cooling rate, and a fine microstructure. It has become one of the common methods used to prepare aluminum matrix composites [31,32]. The development of spray deposition technology is restricted by the existence of micro-holes in ingots prepared by spray deposition, and the incomplete metallurgical bonding between particles and layers.…”

Section: Introductionmentioning

confidence: 99%

Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al

et al. 2019

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Composites of 7055 aluminum (Al) matrix reinforced with SiC particles were prepared using the spray deposition method. The volume fraction of the phase reinforced with SiC particles was 17%. The effect of the introduction of SiC particles on the deposited microstructure and properties of the composites was studied in order to facilitate the follow-up study. The structure and element enrichment zone of spray-deposited SiCp/7055 Al matrix composites were studied by Optical Microscope (OM), X-ray diffraction (XRD), Scanning Electronic Microscopy (SEM) and Transmission electron microscopy (TEM). The results show that the reinforcement phases of the SiC particles were uniformly distributed on the macro and micro levels, and a few SiC particles were segregated into annular closed regions. C and Si on the surface of SiC particles diffused to the Al matrix. The distribution of the two elements was gradient weakening with SiC particles as the center, and the enrichment zones of Si, Mg and Cu formed in the middle of the closed annular area of a few SiC particles. The enrichment zones were mainly composed of alpha-Al, SiC, Al2CuMg, Al2Cu and MgZn2. AlCu and AlMgCu phase precipitate on the surface of the SiC particles, beside the particle boundary, and had the characteristics of preferred nucleation. They tended to grow at the edges and corners of SiC particles. It was observed that the formation of nanoparticles in the alloy had a pinning effect on dislocations. The different cooling rates of the SiC particles and the Al matrix led to different aluminum liquid particle sizes, ranging from 20 to 150 μm. In the region surrounded by SiC particles, the phenomenon of large particles extruding small particles was widespread. Tearing edges and cracks continued to propagate around the SiC particles, increasing their propagation journey and delaying the fracture of the materials.

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Low-cycle fatigue behavior of SiCp/Al–Si composites produced by spray deposition

Cited by 16 publications

References 20 publications

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Thermomechanical Fatigue Behavior of Spray-Deposited SiC_p/Al-Si Composite Applied in the High-Speed Railway Brake Disc

Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al

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Low-cycle fatigue behavior of SiCp/Al–Si composites produced by spray deposition

Cited by 16 publications

References 20 publications

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Evaluation of Fatigue Behavior of Silicon Carbide Particles Reinforced with Magnesium Alloy Metal Matrix Composites

Thermomechanical Fatigue Behavior of Spray-Deposited SiCp/Al-Si Composite Applied in the High-Speed Railway Brake Disc

Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al

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Thermomechanical Fatigue Behavior of Spray-Deposited SiC_p/Al-Si Composite Applied in the High-Speed Railway Brake Disc