Microstructure of graphite fibre reinforced aluminum matrix composites

1988 ◽  
Vol 46 ◽  
pp. 988-989
Author(s):  
K.-T. Chang ◽  
J.H. Mazur
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Composite Material ◽  
Aluminum Alloy ◽  
Graphite Fiber ◽  
Fiber Reinforced ◽  
Alloy Matrix ◽  
6061 Aluminum Alloy ◽  
The Matrix ◽  
Aluminum Alloy Matrix

The mechanical properties of fiber reinforced materials are determined by the mechanical properties of the individual components (i.e., the fiber and the matrix) and by the nature of the interface between these components. The interface is responsible for the transfer of the stress between the fiber and the matrix and, consequently, an understanding of the microstructure is essential in order to predict the performance of the composite system.In this work we report our preliminary investigations of the microstructure of graphite fiber reinforced 6061 aluminum alloy matrix composite material. The composite material was prepared in the form of a wire 0.65 mm in diameter from mesophase pitch base graphite fiber embedded in 6061 aluminum alloy matrix (A1 97.87%, Si 0.6%, Cu 0.28%, Mg 1.0%, Cr 0.2%, other trace elements 0.05%). Observations of the microstructure were performed on longitudinal and transverse sections of the composite material wire using light microscopy, scanning electron microscopy and transmission electron microscopy.

scholarly journals Mechanical properties and microstructure of 6061 aluminum alloy matrix composite reinforced with alumina microspheres.

1994 ◽  
Vol 44 (5) ◽  
pp. 286-291 ◽  
Author(s):  
Jingtao WANG ◽  
Minoru FURUKAWA ◽  
Zenji HORITA ◽  
Minoru NEMOTO ◽  
Yan MA ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Matrix Composite ◽  
Alloy Matrix ◽  
6061 Aluminum Alloy ◽  
Aluminum Alloy Matrix

scholarly journals Characterization of Microstructure and Hardness of Aluminum Alloy Matrix Composites Reinforced with Boron Fiber (Coarse and Fine) Particles Prepared by Powder Metallurgy Technique

2019 ◽  
Vol 8 (12) ◽  
pp. 5437-5444
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Powder Metallurgy ◽  
Fine Particles ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
Boron Fiber ◽  
The Matrix ◽  
Aluminum Alloy Matrix

Powder metallurgy is one of the best methods to achieve uniform distribution of reinforcement in to the matrix. In this Paper, characterization of microstructure and hardness of aluminum alloy matrix composites reinforced with boron fiber particles prepared by powder metallurgy technique are investigated. The effects of boron fiber (Coarse particles size of 120 µm and Fine particles size of 50 µm) on mechanical properties were studied. Increasing the reinforcement of boron fiber content with 5%, 10% and15% into the matrix improved the mechanical properties. The percentage of boron fiber reinforcement increasing the strength of the hardness number is also increasing simultaneously, the aluminum alloys and boron fiber particles on the microstructure and mechanical properties of the composites were investigated. X-ray diffraction (XRD) and scanning electron microscopy (SEM) with Energy dispersive spectrum (EDS) analyses indicated. Analysis and observing microstructure of the composite is boron fiber particles are uniformly dispersed in the aluminum alloy matrix composites.

Recycled Aluminum Alloy Matrix Composites with Artificial Pellets Made of Incineration Ashes

2007 ◽  
Vol 561-565 ◽  
pp. 1653-1656
Author(s):  
Yoshitaka Iwabuchi ◽  
Isao Kobayashi
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Matrix Composites ◽  
Trial And Error ◽  
Alloy Matrix ◽  
Research Article ◽  
Aluminum Alloy Matrix ◽  
Incineration Ashes

This research article describes the newly developed composite material using the artificial pellets made of incineration ashes and recycled aluminum alloys. The factor affecting its various properties was investigated and discussed. Through trial and error, the hybrid preform with good soundness and preferable dispersion of the pellets could be obtained. The density and compression strength and thermal conductivity were measured in comparison of other structural materials.

scholarly journals Microstructure and Mechanical Properties of MWCNTs Reinforced A356 Aluminum Alloys Cast Nanocomposites Fabricated by Using a Combination of Rheocasting and Squeeze Casting Techniques

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Abou Bakr Elshalakany ◽  
T. A. Osman ◽  
A. Khattab ◽  
B. Azzam ◽  
M. Zaki
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Squeeze Casting ◽  
A356 Aluminum Alloy ◽  
Multiwalled Carbon ◽  
Silicon Alloys ◽  
Alloy Matrix ◽  
Uniform Dispersion ◽  
Aluminum Alloy Matrix ◽  
A356 Aluminum

A356 hypoeutectic aluminum-silicon alloys matrix composites reinforced by different contents of multiwalled carbon nanotubes (MWCNTs) were fabricated using a combination of rheocasting and squeeze casting techniques. A novel approach by adding MWCNTs into A356 aluminum alloy matrix with CNTs has been performed. This method is significant in debundling and preventing flotation of the CNTs within the molten alloy. The microstructures of nanocomposites and the interface between the aluminum alloy matrix and the MWCNTs were examined by using an optical microscopy (OM) and scanning electron microscopy (SEM) equipped with an energy dispersive X-ray analysis (EDX). This method remarkably facilitated a uniform dispersion of nanotubes within A356 aluminum alloy matrix as well as a refinement of grain size. In addition, the effects of weight fraction (0.5, 1.0, 1.5, 2.0, and 2.5 wt%) of the CNT-blended matrix on mechanical properties were evaluated. The results have indicated that a significant improvement in ultimate tensile strength and elongation percentage of nanocomposite occurred at the optimal amount of 1.5 wt% MWCNTs which represents an increase in their values by a ratio of about 50% and 280%, respectively, compared to their corresponding values of monolithic alloy. Hardness of the samples was also significantly increased by the addition of CNTs.

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