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.

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.

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

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.

Synthesis, Microstructure And Mechanical Properties Of Magnesium Matrix Composites Fabricated By Stir Casting

2019 ◽  
Vol 18 ◽  
pp. 4034-4041 ◽  
Author(s):  
Arabinda Meher ◽  
Manas Mohan Mahapatra ◽  
Priyaranjan Samal ◽  
Pandu R Vundavilli ◽  
SP Madavan
Keyword(s):  
Mechanical Properties ◽  
Stir Casting ◽  
Matrix Composites ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Microstructure And Mechanical Properties

Mechanical Behavior of CNTs/SiCp/AZ91D Magnesium Matrix Composites

2011 ◽  
Vol 694 ◽  
pp. 635-639 ◽  
Author(s):  
Wei Xue Li ◽  
Yun Feng Nie ◽  
Dun Dong Wang
Keyword(s):  
Mechanical Properties ◽  
Casting Process ◽  
Matrix Alloy ◽  
Stir Casting ◽  
Matrix Composites ◽  
Micro Hardness ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Resistance To Deformation ◽  
The Matrix

AZ91D alloy composites reinforced by CNTs/SiCp were fabricated using stir casting process. The mechanical properties of the composites were tested, observed and analyzed the microstructure, the fractographs were observed and analyzed via scanning electron microscope. The results showed that CNTs/SiCp could not only refine the grains of the composites, but also bear the load of resistance to deformation. Compared with the matrix alloy, the tensile strength, the elastic modulus, the micro-hardness and the elongation rate of the composites had been enhanced significantly. But the mechanical properties would be fell down with the more addition of CNTs/SiCp.

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