Mechanical and Tribological Behavior of Mg-Matrix Composites Manufactured by Stir Casting

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
R. Praveenkumar ◽  
P. Periyasamy ◽  
V. Mohanavel ◽  
M.M. Ravikumar
Keyword(s):  
Matrix Material ◽  
Wear Test ◽  
Stir Casting ◽  
Homogeneous Distribution ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Magnesium Matrix ◽  
Sem Images ◽  
Magnesium Matrix Composites ◽  
Az31b Alloy

In the recent decades, magnesium matrix composites present a plenty of applications to automotive, marine and aerospace industries. In this work, AZ31B is selected as Mg matrix material and hard Tungsten carbide (WC) particles as reinforcement material. Mg/WC composites reinforced with different weight proportions (0, 5, 10 and 15 wt.%) were made through stir casting method. The worn surface of manufactured Mg/WC composites and base Mg material were examined by scanning electron microscope (SEM). The wear test results denoted that the AZ31B/15 wt% WC composites have excellent tribological behaviour when compared to the base magnesium matrix AZ31B alloy. The yield strength, flexural strength, tensile strength and micro-hardness of the manufactured composites are improved by increasing the WC content. SEM images reveal the homogeneous distribution of WC particles throughout the Mg matrix.

Mechanical and Tribological Behavior of Mg-Matrix Composites Manufactured by Stir Casting

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
R. Praveenkumar ◽  
P. Periyasamy ◽  
V. Mohanavel ◽  
M.M. Ravikumar
Keyword(s):  
Tensile Strength ◽  
Matrix Material ◽  
Wear Test ◽  
Stir Casting ◽  
Sem Analysis ◽  
Homogeneous Distribution ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites

In the recent decades, magnesium matrix composites present a plenty of applications in automotive, marine and aerospace industries. In this work, AZ31B is selected as Mg matrix material and hard Tungsten carbide (WC) particles as reinforcement material. Mg/WC composites are reinforced with different weight proportions (0, 5, 10 and 15% wt.) using stir casting method. The worn surface of manufactured Mg/WC composites and base Mg material were examined by scanning electron microscope (SEM). The wear test results denote that AZ31B/15% wt. WC composites have excellent tribological behaviour when compared to the base magnesium matrix AZ31B alloy. The yield tensile strength, flexural strength, ultimate tensile strength and micro-hardness of the manufactured composites are improved by increasing the WC content. Further, SEM analysis revealed the homogeneous distribution of WC particles throughout the Mg matrix.

scholarly journals Machining and corrosion studies on HfC reinforced ZE41 magnesium matrix composites

2021 ◽  
Author(s):  
Paramasivam Sathish Kumar ◽  
Poornanantan Gopal ◽  
Thamilkolundhu Senthilkumar
Keyword(s):  
Electron Backscatter Diffraction ◽  
Stir Casting ◽  
Matrix Composites ◽  
Hafnium Carbide ◽  
Magnesium Matrix ◽  
Sem Images ◽  
Magnesium Matrix Composites ◽  
Micro Cracks ◽  
Corrosion Studies ◽  
Backscatter Diffraction

Abstract In this paper, Hafnium Carbide (HfC) reinforced ZE41 Magnesium Matrix Composites (MMCs) were prepared by using stir casting method. Using three different reinforcement percentages of HfC such as 5%, 10% and 15% by wt., ZE41-HfC MMCs were prepared. The mechanical characteristics of ZE41-HfC MMCs were evaluated by subjecting them to tensile and surface micro-hardness studies. Using X-Ray diffraction (XRD) studies, chemical compounds formed in the interfacial layer between HfC & ZE41 Mg was observed. Using optical microscopy (OM) and scanning electron microscopy (SEM), the surface modifications in the composites due to HfC addition was studied. Using electron backscatter diffraction analysis (EBSD), the changes in particle grain sizes and orientation of ZE41-HfC MMCs were studied. Energy Dispersive Spectroscopy (EDS) analysis was used to identify the variations in elemental composition of the prepared ZE41-HfC MMCs. ZE41-HfC MMCs were subjected to drilling studies for identifying the variations in cutting forces. Using electrochemical studies, the corrosion resistance of ZE41-HfC MMCs was observed. SEM images of corroded ZE41-HfC MMCs revealed micro cracks and dense pits near HfC agglomerated region.

The interfacial characteristic of SiCp/AZ91 magnesium matrix composites fabricated by stir casting

2009 ◽  
Vol 44 (11) ◽  
pp. 2759-2764 ◽  
Author(s):  
X. J. Wang ◽  
X. S. Hu ◽  
K. Wu ◽  
M. Y. Zheng ◽  
L. Zheng ◽  
...  
Keyword(s):  
Stir Casting ◽  
Matrix Composites ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Az91 Magnesium ◽  
Interfacial Characteristic

scholarly journals Mechanical Properties and Tribological Behaviour of Reinforced Aluminium Metal Matrix Composites

2020 ◽  
Vol 8 (6) ◽  
pp. 1191-1195
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Wear Test ◽  
Stir Casting ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Casting Method ◽  
Weight Percentage ◽  
Mechanical And Tribological Properties ◽  
Aluminium Metal

This paper focuses the Mechanical properties and tribological behaviour of aluminium (6063) metal which are reinforced with silicon carbide and graphite. Different percentages like7 %, 10%, 12% of silicon carbide and 3%, 5%, 8% of Graphite were added for reinforcement. The manufacturing of components is made by using stir casting method. Mechanical properties like (fatigue, impact, micro structure) and wear test are carried out in this paper. The result concluded that there is an increase in the mechanical and tribological properties with increase in weight percentage of reinforcement.

Wear Characterization of Aluminium Metal Matrix Composites

2013 ◽  
Vol 22 (4) ◽  
pp. 096369351302200 ◽  
Author(s):  
S. Vijayakumar ◽  
L. Karunamoorthy
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Matrix Material ◽  
Wear Test ◽  
Stir Casting ◽  
Wear Behaviour ◽  
Matrix Composites ◽  
Aluminium Metal ◽  
Wear Characterization

Aluminium metal matrix composites wear characterization is presented in the paper. The LM25 grade aluminium alloy is chosen as matrix material and reinforcements are silicon carbide, zircon and garnet particles. AlMMCs are produced by conventional stir casting method and heat treated before making wear test specimens according to the ASTM G99 standards. The wear behaviour of these composites is studied under laboratory conditions using a pin-on-disc wear test rig. The wear behaviour of these composites is studied under sliding on EN32 steel disc. The influence of reinforcement type, volume fraction, particle size, sliding speed, applied load and sliding distance is analyzed.

Fabrication and Sliding Wear Behaviour of Metal Matrix Composites

2014 ◽  
Vol 612 ◽  
pp. 157-162 ◽  
Author(s):  
J. Udaya Prakash ◽  
T.V. Moorthy ◽  
S. Ananth
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Material ◽  
Wear Test ◽  
Stir Casting ◽  
Wear Behaviour ◽  
Matrix Composites ◽  
Sliding Speed ◽  
Weight Percentage ◽  
Sliding Distance

Wear behaviour of aluminium matrix composites are characterized by pin on disc wear test using various parameters such as sliding distance, sliding speed and load. MMC consists of aluminium alloy (A356) as the matrix material and particulate alumina of 5% and 10% by weight as the reinforcement was fabricated using stir casting. Wear resistance of composites are improved by the presence of reinforcements. Experiments were conducted based on the plan of experiments generated through Taguchi Technique. L9 orthogonal array was selected for analysis of data. The objective of this investigation is to study the influence of sliding speed, sliding distance, load and weight percentage reinforcement on wear rate of fabricated metal matrix composites.

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