Influence of silicon carbide particulate reinforcement on the Fracture toughness of Al 6061 alloy composites produced by stir casting method

Author(s):  
K Umanath ◽  
S T Selvamani ◽  
K Natarajan ◽  
K Palanikumar
Author(s):  
Hareesha Guddhur ◽  
Chikkanna Naganna ◽  
Saleemsab Doddamani

The objective of this work is to investigate the process parameters which influence the fracture toughness of aluminum-silicon carbide particulate composite prepared using the stir casting technique. The Taguchi’s design of experiments is conducted to analyze the process parameters. Three parameters considered are composition of material, grain size and a/W ratio. From the Taguchi’s analysis, on compact tension specimens, aluminum 6061 reinforced with 9 wt% of the silicon carbide particles composite and a/W ratio of 0.45 are considered to be optimized parameters. Taguchi's technique result shows that the increment in the a/W ratio causes decrement in the load carrying capacity of the composite. Whereas the fine grain size of silicon carbide have better toughness values. From the ANOVA outcomes it is clear that the composition and a/W ratio of the geometry has more influence on the fracture toughness than the grain size of reinforcement.


2017 ◽  
Vol 2 (3-4) ◽  
pp. 115-119 ◽  
Author(s):  
P.O. Babalola ◽  
C.A Bolu ◽  
A.O. Inegbenebor ◽  
O. Kilanko ◽  
S.O. Oyedepo ◽  
...  

2019 ◽  
Vol 41 (4) ◽  
pp. 650-650
Author(s):  
Ali Dad Chandio Ali Dad Chandio ◽  
Muhammad Basit Ansari Muhammad Basit Ansari ◽  
Shahid Hussain Shahid Hussain ◽  
Muhammad Ali Siddiqui Muhammad Ali Siddiqui

In the present study aluminium silicon carbide (Al/SiC) composites were prepared by powder metallurgical method. The mechanical and morphological evaluation were studied upon the variation of reinforcements percentages i.e.10, 15 and 20 wt.% of SiC powder were used as the reinforcements in aluminium matrix. The comparison of powder metallurgy method with stir casting method of Al/ (SiC) composites preparation was performed and the particle reinforcements were visualized through Scanning Electron Microscopy (SEM). The results demonstrated increased hardness with increasing wt. % of SiC particles. This was attributed to efficient stress transfer and dislocation strengthening. In addition, the densification behaviour of the composites was also studied and SiC particulates were found to exhibit profound effect on composites density.


2018 ◽  
Vol 7 (3.34) ◽  
pp. 376
Author(s):  
Arun. A ◽  
Dr V.Sathiyamoorthy ◽  
Amirthalingam. P ◽  
Manikandan A ◽  
Manikandan K ◽  
...  

This paper deals with the 7005 aluminium alloy characterization which has similar physical properties to 6061 aluminium alloy, depending on the temper, may be slightly stronger. To increase their mechanical and physical properties silicon carbide had been introduced in it as reinforcement. Based on mass three different compositional were made and mixed thoroughly, and cast. Stir casting method is used for casting proportioned alloys. Heat treatment process is carried out after casting the alloy is mixed in the three proper compositions. Mechanical properties like hardness, Tensile strength and impact strength were conducted and analyzed. Properties can be altered in a better way using silicon carbide as an reinforcement in aluminium-7005.  


The function of engineering materials in the development of contemporary technology like steel Matrix Composites (MMCs) have evoked a keen hobby these days for capacity packages in aerospace and automobile industries as a result of their superior power to weight ratio and excessive temperature resistance. Aluminium (6061) and silicon Carbide (Powder) has been selected as matrix and reinforcement cloth respectively. On this gift look at an attempt is made to broaden Aluminium primarily based silicon carbide particulate MMCs. Stir casting is one of the maximum cost powerful technique of processing MMC and to gain homogenous dispersion of ceramic material. Al–SiC composites containing special weight chance three. Five %, 7.Zero% and 10.5% of B4C have been fabricated via way of stir casting technique. Experiments are conducted with the aid of numerous weight fraction of SiC (3.5%, 7.Zero% and 10.Five%), on the equal time as preserving all different parameters normal. The distribution of reinforcement and percent of composition are examined thru Optical Emission Spectrometer (OES). The compositions in their micro structural features were determined via Metallurgical Microscope.


Silicon ◽  
2016 ◽  
Vol 10 (2) ◽  
pp. 343-347 ◽  
Author(s):  
A. O. Inegbenebor ◽  
C. A. Bolu ◽  
P. O. Babalola ◽  
A. I. Inegbenebor ◽  
O. S. I. Fayomi

2021 ◽  
Author(s):  
A Alhadhrami ◽  
B M Prasanna ◽  
Saleemsab Doddamani ◽  
Rajesh A M

Abstract The current work is to examine the effect of the parameters like specimen thickness, crack length to width ratio and composition of the reinforcements used in aluminium-silicon carbide/alumina particulate composite. The said composite is processed using the stir casting route. Taguchi's optimization techniques such as experiments, ANOVA and regression techniques have been utilized to investigate the parameters. Three factors and their levels considered are the composition of reinforcements (3, 6 and 9 wt%), the thickness of specimen (10, 12, 15 mm) and a/W ratio (0.45, 0.47 and 0.50). Results show increment in composition beyond 6wt%, and a/W ratio decreases the fracture toughness of hybrid composites. From Taguchi's analysis, for a/W ratio = 0.45, 12mm thick specimens and 6wt% of reinforcements in aluminium matrix exhibit the larger fracture toughness. Thus those parameters are considered to be optimized parameters. The analysis shows that the a/W ratio influences fracture toughness, followed by the composition and specimen thickness.


2020 ◽  
Vol 8 (6) ◽  
pp. 1191-1195

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.


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