Temperature dependent compressive yield strength model for short fiber reinforced magnesium alloy matrix composites

Shao, Jiaxing; Li, Weiguo; Wang, Ruzhuan; Tao, Yong; Kou, Haibo; Deng, Yong; Zhang, Xianhe; Li, Ying; Wang, Xiaorong

doi:10.1007/s10853-017-1980-y

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…It indicates that the variation in composite strength (caused by the same percent change in matrix Young's modulus) also decreases with increasing temperature. Unlike short fiber reinforced magnesium alloy matrix composites (their temperature‐dependent compressive yield strengths are found to be not sensitive to fiber Young's modulus in our previous study), Figure indicates that increasing the Young's modulus of whisker and matrix shows the similar strengthening effect to the fracture strength of whisker‐reinforced ceramic matrix composites at different temperatures. Both methods can help to improve the composite strength, and their strengthening effects are more significant at low temperatures.…”

Section: Resultsmentioning

confidence: 44%

Temperature‐dependent fracture strength of whisker‐reinforced ceramic composites: Modeling and factor analysis

Shao

et al. 2018

J Am Ceram Soc

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In this study, a temperature-dependent fracture strength model for whiskerreinforced ceramic composites was developed. This model considers the strength degradation of both whisker and ceramic matrix at elevated temperatures, as well as the evolution of residual thermal stress with temperature. It was verified by comparison with the available flexural strengths of five types of whiskerreinforced ceramic composites at different temperatures, and good agreement between the model predictions and the experimental data is obtained. Moreover, based on the established model, we systematically analyzed the effects of six influencing factors, including the volume fraction and the aspect ratio of whisker, the Young's modulus of matrix and whisker, the thermal expansion coefficient difference and the stress-free temperature, on the temperature-dependent flexural strengths of whisker-reinforced ceramic composites. Some new insights which could help optimize and improve the temperature-dependent fracture strength of whisker-reinforced ceramic composites are obtained. K E Y W O R D Sceramic matrix composites, mechanical properties, strength, whiskers

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Section: Resultsmentioning

confidence: 44%

Temperature‐dependent fracture strength of whisker‐reinforced ceramic composites: Modeling and factor analysis

Shao

et al. 2018

J Am Ceram Soc

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“…Not only that, there are other methods that are also usually undertaken to enhance the mechanical properties of magnesium alloys, namely by adding reinforcing materials to magnesium alloys to make magnesium alloy-based composites in order to upgrade their mechanical properties as required. Referring to several studies that have been conducted previously, incorporating reinforcement materials into magnesium alloys in the form of SiO 2 nanoparticles [ 13 ], carbon nanotubes/CNTs [ 14 ], and short fibers of Al 2 O 3 [ 15 ] or carbon [ 16 ] can considerably improve their mechanical strength [ 15 , 17 ] and creep resistance [ 18 ]. Indeed, short carbon fiber reinforcement has the advantages of increasing stiffness, elastic modulus, and creep resistance while maintaining a light weight, opening up opportunities to expand its use in different engineering applications [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

LCF and HCF of Short Carbon Fibers Reinforced AE42 Mg Alloy

Alsaleh,

Ataya,

Latief

et al. 2023

Materials

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Lightweight magnesium alloys and magnesium matrix composites have recently become more widespread for high-efficiency applications, including automobile, aerospace, defense, and electronic industries. Cast magnesium and magnesium matrix composites are applied in many highly moving and rotating parts, these parts can suffer from fatigue loading and are consequently subjected to fatigue failure. Reversed tensile-compression low-cycle fatigue (LCF) and high-cycle fatigue (HCF) of short fibers reinforced and unreinforced AE42 have been studied at temperatures of 20 °C, 150 °C, and 250 °C. To select suitable fatigue testing conditions, tensile tests have been carried out on AE42 and the composite material AE42-C at temperatures of up to 300 °C. The Wohler curves σa (NF) have shown that the fatigue strength of the reinforced AE42-C in the HCF range was double that of unreinforced AE42. In the LCF range at certain strain amplitudes, the fatigue life of the composite materials is much less than that of the matrix alloys, this is due to the low ductility of this composite material. Furthermore, a slight temperature influence up to 150 °C has been established on the fatigue behavior of the AE42-C. The fatigue life curves Δεtotal (NF) were described using the Basquin and Manson–Coffin approaches. Fracture surface investigations showed a mixed mode of serration fatigue pattern on the matrix and carbon fibers fracturing and debonding from the matrix alloy.

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Significant strengthening of copper-based composites using boron nitride nanotubes

Chen,

Li,

et al. 2023

Int J Miner Metall Mater

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Temperature dependent compressive yield strength model for short fiber reinforced magnesium alloy matrix composites

Cited by 8 publications

References 36 publications

Temperature‐dependent fracture strength of whisker‐reinforced ceramic composites: Modeling and factor analysis

Temperature‐dependent fracture strength of whisker‐reinforced ceramic composites: Modeling and factor analysis

LCF and HCF of Short Carbon Fibers Reinforced AE42 Mg Alloy

Significant strengthening of copper-based composites using boron nitride nanotubes

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