Experimental investigation on the effect of tool rotation speed on stir cast friction stir welded aluminium hybrid metal matrix composite

2020 ◽  
Vol 27 ◽  
pp. 1787-1793
Author(s):  
R. Srinivasan ◽  
M. Vesvanth ◽  
Kv. Sivasuriya ◽  
S. Sanjay ◽  
M.J. Vinesh Madhu
Keyword(s):  
Experimental Investigation ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Rotation Speed ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Hybrid Metal Matrix Composite ◽  
Tool Rotation

An appraisal of characteristic mechanical properties and microstructure of friction stir welding for Aluminium 6061 alloy – Silicon Carbide (SiCp) metal matrix composite

2019 ◽  
Vol 13 (4) ◽  
pp. 5804-5817
Author(s):  
Ibrahim Sabry
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Welded Joint ◽  
Rotation Speed ◽  
Fusion Welding ◽  
Friction Stir ◽  
Al 6061

It is expected that the demand for Metal Matrix Composite (MMCs) will increase in these applications in the aerospace and automotive industries sectors, strengthened AMC has different advantages over monolithic aluminium alloy as it has characteristics between matrix metal and reinforcement particles.  However, adequate joining technique, which is important for structural materials, has not been established for (MMCs) yet. Conventional fusion welding is difficult because of the irregular redistribution or reinforcement particles.  Also, the reaction between reinforcement particles and aluminium matrix as weld defects such as porosity in the fusion zone make fusion welding more difficult. The aim of this work was to show friction stir welding (FSW) feasibility for entering Al 6061/5 to Al 6061/18 wt. % SiCp composites has been produced by using stir casting technique. SiCp is added as reinforcement in to Aluminium alloy (Al 6061) for preparing metal matrix composite. This method is less expensive and very effective. Different rotational speeds,1000 and 1800 rpm and traverse speed 10 mm \ min was examined. Specimen composite plates having thick 10 mm were FS welded successfully. A high-speed steel (HSS) cylindrical instrument with conical pin form was used for FSW. The outcome revealed that the ultimate tensile strength of the welded joint (Al 6061/18 wt. %) was 195 MPa at rotation speed 1800 rpm, the outcome revealed that the ultimate tensile strength of the welded joint (Al 6061/18 wt.%) was 165 MPa at rotation speed 1000 rpm, that was very near to the composite matrix as-cast strength. The research of microstructure showed the reason for increased joint strength and microhardness. The microstructural study showed the reason (4 %) for higher joint strength and microhardness.  due to Significant   of SiCp close to the boundary of the dynamically recrystallized and thermo mechanically affected zone (TMAZ) was observed through rotation speed 1800 rpm. The friction stir welded ultimate tensile strength Decreases as the volume fraction increases of SiCp (18 wt.%).

Investigation on Friction Stir Welding Parameters of Aluminium Metal Matrix Composites

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
M. Sucharitha ◽  
B. Ravisankar
Keyword(s):  
Friction Stir Welding ◽  
Metal Matrix ◽  
Rotation Speed ◽  
Friction Stir Weld ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Wide Range ◽  
Tool Rotation ◽  
Aluminium Metal

Friction stir welding could be a solid-state welding has a wide range of applications in industries like aerospace and automobile industries. In this work, the friction stir weld ability of aluminium metal matrix composite(AMMC) using H13 tool and sensitivity of parameters like tool rotation speed, traverse speed and axial force are assessed on final durability, hardness and microstructure. It was observed that the tensile strength and hardness are increased by increasing the tool rotation speed. The microstructure showed fine Al-Mg-Si eutectic particles in a matrix of Al solid solution.

scholarly journals Experimental Investigation on Mechanical Properties of an Al6061 Hybrid Metal Matrix Composite

2018 ◽  
Vol 2 (3) ◽  
pp. 49 ◽  
Author(s):  
Ch Hima Gireesh ◽  
K. Durga Prasad ◽  
Koona Ramji
Keyword(s):  
Mechanical Properties ◽  
Experimental Investigation ◽  
Fly Ash ◽  
Impact Strength ◽  
Yield Strength ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Constant Weight ◽  
Hybrid Metal Matrix Composite

The demand for aluminum hybrid metal matrix composites has increased in recent times due to their enhanced mechanical properties for satisfying the requirements of advanced engineering applications. The performance of these materials is greatly influenced by the selection of an appropriate combination of reinforcement materials. The reinforcement materials include carbides, nitrides, and oxides. The ceramic particles, such as silicon carbide and aluminum oxide, are the most widely used reinforcement materials for preparing these composites. In this paper, an attempt has been made to prepare an Al6061 hybrid metal matrix composite (HAMMC) reinforced with particulates with different weight fractions of SiC and Al2O3 and a constant weight fraction (5%) of fly ash by a stir-casting process. The experimental study has been carried out on the prepared composite to investigate the mechanical properties due to the addition of multiple reinforcement materials. The density and mechanical properties, such as ultimate tensile strength, yield strength, impact strength, and the hardness and wear characteristics of the proposed composite, are compared with those of unreinforced Al6061. The experimental investigation is also aimed at observing the variation of properties with a varying weight percentage of the reinforcement materials SiC and Al2O3 simultaneously with the fly ash content maintained constant. The outcome of the experimental investigation revealed that the proposed hybrid composite with 20% of total reinforcement material exhibits high hardness, high yield strength, and low wear rate but no considerable improvement in impact strength.

A study on the microstructure, hardness, and tribological behavior of aluminum-based metal–matrix composite fabricated through recursive friction stir processing

2020 ◽  
pp. 146442072097668
Author(s):  
G Girish ◽  
V Anandakrishnan
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Friction Stir Processing ◽  
Metal Matrix ◽  
Applied Load ◽  
Tribological Behavior ◽  
Testing Conditions ◽  
Friction Stir ◽  
The Matrix ◽  
Microstructure Examination

In this work, an Al–Zn–Mg–Cu/TiC metal–matrix composite was fabricated through recursive friction stir processing, and its microstructure, hardness, and tribological properties were investigated. Microstructure examination revealed a homogeneous dispersion of TiC particles in the matrix after six recursive passes. The grains were significantly refined and microhardness of the composite improved due to the presence of TiC particles. Friction coefficient and wear rate of the composite went up with an increase in the applied load and dropped significantly at higher sliding velocities. The morphology of the wear specimens experimented under different testing conditions was analyzed and the corresponding wear mechanisms discussed.

scholarly journals Analysis of Microstructure, Hardness and Wear of Al-SiC-TiB2 Hybrid Metal Matrix Composite

2015 ◽  
Vol 8 (S2) ◽  
pp. 101 ◽  
Author(s):  
Gaurav Mahajan ◽  
Nikhil Karve ◽  
Uday Patil ◽  
P. Kuppan ◽  
K. Venkatesan
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Hybrid Metal Matrix Composite
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