Metal Matrix Composite Products by Vibration Casting Method

Sayuti, M.; Sulaiman, Shamsuddin; Baharudin, B. T. Hang Tuah; Arifin, Mohd Khairol A.

doi:10.1016/b978-0-12-803581-8.04082-0

Cited by 10 publications

(7 citation statements)

References 96 publications

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“…It can be applied for the current existing processes and does not require extensive modifications on the design of the equipment used. [ 7 ]…”

Section: Introductionmentioning

confidence: 99%

“…It can be applied for the current existing DOI: 10.1002/adts.202200646 processes and does not require extensive modifications on the design of the equipment used. [7] Mechanical vibrations, exerting timevarying forces on the surface of metal melt, transmit mechanical power to the internal melt in the form of mechanical waves, [8] causing fluctuations, thus affecting the solidification process. Presently, most studies have concentrated on the relations between vibration parameters and solidification microstructures and defects, [9] but comparatively few have focused on the propagation laws of mechanical waves and the interactions between waves and melts, which are the theoretical bases of the influencing mechanism of vibrations on solidification.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Wave Propagation in Solidifying Metals: Physico‐Mathematical Model and Numerical Tests

Chen

Wang

2023

Advcd Theory and Sims

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Despite the widespread application of mechanical waves in solidifying metals, the wave propagation laws in melt and the motion patterns of melts are unclear, which has seriously hindered the development of vibration solidification treatment. It is difficult to solve the wave propagation because of the spatial heterogeneity and the intrinsic viscoelasticity of solidifying metals. In this paper, a physico-mathematical model is developed by coupling the unsteady temperature field and the integral Hooke-Kelvin model unifying various rheological models during solidification, and simplifies to wave equations by introducing memory factors. Then, the wave equations are solved by a staggered-grid high-order difference method. Subsequently, the propagation laws of mechanical waves in a large casting and a feeding channel during solidification are analyzed, eventually verified by casting experiments. It is shown that the viscoelasticity of solidifying metals is significant for the wave field. In the large casting, both displacements and stresses exhibit complex multi-lobe patterns. In the feeding channel, the formation of micropores between the quasi-liquid and the quasi-solid phase and the feeding improvement by vibrations are well explained by simulation. The numerical model is a novel reliable method to theorize the solidification under vibration and expands the potential applications of vibration.

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“…It can be applied for the current existing processes and does not require extensive modifications on the design of the equipment used. [ 7 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical Wave Propagation in Solidifying Metals: Physico‐Mathematical Model and Numerical Tests

Chen

Wang

2023

Advcd Theory and Sims

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“…They have high electric and thermal conductivity, high damping capacity, and high corrosion resistance [4]. AMCs have created interest in research communities since 1920s [5]. One of the main reasons to conduct the current research was to nd out which material is appropriate for composite preparation.…”

Section: Introductionmentioning

confidence: 99%

Production of Aluminum Matrix Composite Material by Active Carbon Additive

Eisay

Türkyilmaz

2021

J Inorg Organomet Polym

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The effectiveness of composite materials with the addition of activated carbon produced from biomaterial with a new application on aluminum-based composite materials was investigated in this study.Activated carbon was produced from the peanut shells via the chemical activation method and the obtained activated carbon was mixed with aluminum and composite material. For the characterization of the composite material obtained, XRD and SEM-EDS optical photographs were assessed in the experimental process. According to Vickers Hardness and Dynamic Micro Hardness results, the sample with the hardness value of 2% AC added had the highest hardness value. The elastic modulus values was found to increase by 3.4 times (9.59GPa) compared to aluminum with the addition of 2% activated carbon. This increases with activated carbon quantity, and weakens the matrix structure due to weak van der waals interaction with aluminum, which reduces hardness; therefore, the best ratio of the activated carbon reinforcement to the aluminum matrix was obtained at 2% activated carbon addition.

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“…To produce wind turbine blades that have reliability in producing optimal rotation, the main aspect that needs to be considered is the structure of the turbine blades themselves. For this reason, wind turbine propellers need to be composed of material structures or materials that have high strength or toughness [2], [3]. So that the p-ISSN : 1412-114X e-ISSN : 2580-5649 http://ojs2.pnb.ac.id/index.php/LOGIC composite material was chosen.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Number of Layers and Volume Fraction of Fiber Against Shock Load and Composite Compressive Strength Wind Turbine Propeller

Witono

Udianto

Prasetyo

et al. 2021

LOGIC

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The manufacture of wind turbine blades has a very high risk of failure, especially in the manufacturing section or in this case the material structure. If the structure of the propeller material is not able to withstand the very high pressure and air flow, it will result in the failure of the material structure when it is in use. For this reason, the purpose of this study was to determine the composition of composite materials that have high strength and toughness properties and are suitable for wind turbine propellers. The method used in this research is experimental. The independent variables include the number of layers and the volume fraction of straw fiber. The dependent variables are shock load and compressive strength. Each compression test specimen is made with a gauge length of 100mm, a width of 25mm, and a thickness of 2.5mm. While the impact test specimens are made equal to l25mm long, l2mm wide, l2mm high, and 2mm notch. The results showed that the bending strength of the straw fiber composite with 6 layers had an increasing trend as the number of layers increased. The highest bending strength with the number of piles of 6 layers and the lowest strength with the number of piles of 2 layers. In addition, the volume fraction is very influential on the bending stress of the straw composite matrix. It can be seen that the matrix with a volume fraction of 50% has the greatest bending stress in each number of layers, both 2, 4 and 6. For the impact test, it is found that the optimal number of layers occurs in the number of 2 layers with a volume fraction of 33%. The shock load tends to decrease. Meanwhile, based on the volume fraction, the larger the volume fraction, the smaller the shock load that can be received by the straw fiber composite material.

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Metal Matrix Composite Products by Vibration Casting Method

Abstract: Background 2 Metal Matrix Composites (MMCs) 2.1 General 2.2 Classification of Composites 2.3 Significance of Composites 2.4 Preparation of MMCs 3 Matrix or Matrices 4 Reinforcing Phase/Materials 4.

Cited by 10 publications

References 96 publications

Mechanical Wave Propagation in Solidifying Metals: Physico‐Mathematical Model and Numerical Tests

Mechanical Wave Propagation in Solidifying Metals: Physico‐Mathematical Model and Numerical Tests

Production of Aluminum Matrix Composite Material by Active Carbon Additive

Analysis of Number of Layers and Volume Fraction of Fiber Against Shock Load and Composite Compressive Strength Wind Turbine Propeller

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