scholarly journals Microstructural Characterization of Cast Magnesium Matrix Composites by Raman Microscopy

2013 ◽  
Vol 13 (1) ◽  
pp. 95-98 ◽  
Author(s):  
M.A. Malika ◽  
K. Majchrzak ◽  
K.N. Braszczyńska-Malik
Keyword(s):  
Silicon Carbide ◽  
Microstructural Characterization ◽  
Raman Microscopy ◽  
Matrix Composites ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Silicon Carbide Particles ◽  
Cast Magnesium ◽  
Carbide Particles

Abstract Cast magnesium matrix composites reinforced with silicon carbide particles were investigated by using Raman microscopy. 3C, 4H and 6H polytypes of SiC particles were identified in the investigated composites. Additionally, Mg2Si compound was detected by Raman microscopy in the composites microstructure.

In Situ Synthesis of TiB2/Mg Composites by Flux-Assisted Synthesis Reaction of the Al-Ti-B System in Molten Magnesium

2007 ◽  
Vol 351 ◽  
pp. 166-170 ◽  
Author(s):  
Wei Cao ◽  
Cong Fa Zhang ◽  
Tong Xiang Fan ◽  
Di Zhang
Keyword(s):  
Master Alloy ◽  
Microstructural Characterization ◽  
Xrd Analysis ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Molten Magnesium ◽  
Tib2 Particles

TiB2 particulate reinforced magnesium matrix composites were successfully fabricated by adding a TiB2–Al master alloy processed via the flux-assisted synthesis (FAS) reaction into molten magnesium. X-ray diffraction (XRD) analysis and microstructural characterization of the TiB2–Al master alloy revealed the formation and uniform distribution of TiB2 reinforcements. By stirring, magnesium matrix composites with dispersed homogenously TiB2 particles can be obtained. Microstructural characterization of the TiB2/Mg composites revealed retention of hexagonal or rectangular TiB2 particulates with the size of about 1 μm.

scholarly journals Synthesis and Characterization of Sintered AZ91D Magnesium Matrix Composites Reinforced with Red Mud particles

2016 ◽  
Vol 13 (2) ◽  
pp. 95-100 ◽  
Author(s):  
D Rajamani ◽  
A. Tamilarasan ◽  
Balasubramanian Esakki ◽  
K Ananthakumar
Keyword(s):  
Red Mud ◽  
Low Cost ◽  
Microstructural Characterization ◽  
Matrix Composites ◽  
Az91d Alloy ◽  
Test Results ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Alloy Metal

Magnesium AZ91D alloy is reinforced with red mud particles, is the by-product of alumina which is extracted from refining of bauxite throughbayer process to fabricate low cost novel composite by powder metallurgy technique. Reinforcement ratio was varied from 0% to 15% whereas size of the particles were kept as 30µm.The microstructure and mechanical properties such as density and microhardness of the composite were evaluated. Microstructural characterization of the sintered composite revealed a near uniform distribution of the red mud particulates with magnesium alloy metal matrix.The test results indicated that the increase in weight % of red mud particles significantly enhances the mechanical propertiesof the composite.

Electroless nickel–phosphorus plating on silicon carbide particles for metal matrix composites

2014 ◽  
Vol 40 (10) ◽  
pp. 16653-16664 ◽  
Author(s):  
Peng He ◽  
Shangyu Huang ◽  
Huachang Wang ◽  
Zhichao Huang ◽  
Jianhua Hu ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Electroless Nickel ◽  
Matrix Composites ◽  
Silicon Carbide Particles ◽  
Carbide Particles

Fabrication and characterization of AZ91/CNT magnesium matrix composites

2008 ◽  
Author(s):  
Yong-Ha Park ◽  
Yong-Ho Park ◽  
Ik-Min Park ◽  
Jeong-jung Oak ◽  
Hisamichi Kimura ◽  
...  
Keyword(s):  
Matrix Composites ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Fabrication And Characterization

scholarly journals Types of Component Interfaces in Metal Matrix Composites on the Example of Magnesium Matrix Composites

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5182
Author(s):  
Katarzyna N. Braszczyńska-Malik
Keyword(s):  
Rare Earth ◽  
Magnesium Alloy ◽  
Rare Earth Elements ◽  
Matrix Composites ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Transmission Electron ◽  
The Matrix ◽  
Ti Particles ◽  
Cast Magnesium

In this paper, a summary of investigations of the microstructure of cast magnesium matrix composites is presented. Analyses of the interfaces between the reinforcing particles and the magnesium alloy matrices were performed. Technically pure magnesium and four various alloys with aluminum and rare earth elements (RE) were chosen as the matrix. The composites were reinforced with SiC and Ti particles, as well as hollow aluminosilicate cenospheres. Microstructure analyses were carried out by light, scanning, and transmission electron microscopy. The composites with the matrix of magnesium and magnesium–aluminum alloys with SiC and Ti particles exhibited coherent interfaces between the components. In the composites based on ternary magnesium alloy with Al and RE with Ti particles, a high-melting Al2RE phase nucleated on the titanium. Different types of interfaces between the components were observed in the composites based on the magnesium–rare earth elements alloy with SiC particles, in which a chemical reaction between the components caused formation of the Re3Si2 phase. Intensive chemical reactions between the components were also observed in the composites with aluminosilicate cenospheres. Additionally, the influence of coatings created on the aluminosilicate cenospheres on the bond with the magnesium matrix was presented. A scheme of the types of interfaces between the components is proposed.

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

2020 ◽  
Vol 830 ◽  
pp. 113-118
Author(s):  
Song Jeng Huang ◽  
Murugan Subramani ◽  
Addisu Ali ◽  
Dawit Alemayehu ◽  
Jong Ning Aoh ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Magnesium Alloy ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Ambient Atmosphere ◽  
Matrix Composites ◽  
Silicon Carbide Particles ◽  
Carbide Particles

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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