aluminum a lloy ash composites
TRANSCRIPT
Aluminum Alloy- Ash Composites
Aluminum A Chemical Element in the Boron group
Its Symbol is Al
Atomic Number of Al is 13
It is a Silvery white, Soft & Ductile Metal
Al is the 3rd most abundant element available (after oxygen and silicon)
It has low density and ability to resist corrosion
Also Durable, Light weight and Malleable
Alloy A metallic material that is obtained by Chemical
combination of different elements
Pure metals are rarely used
Typically alloys have good mechanical properties than pure metals
In Aluminum Alloy the predominant element is Aluminum with the addition of Copper, Magnesium, Manganese, Silicon, Tin and Zinc
They are used in applications where light weight and corrosion resistance is required
Ash It is a fine powder produced from burning of Coal
They are spherical shaped balls, finer than cement
particles
It is a byproduct of coal based power plants
Tons of coal is burned daily in the industries, Tons of
Fly ash is produced daily
Composite The combination of Metals, Polymers or Ceramics in such a
way to get our desired properties
Better properties than either materials
Good strength to weight ratio, toughness
Matrix:
◦ Polymer Matrix Composites
◦ Ceramic Matrix Composites
◦ Metal Matrix Composites
Reinforcements:
◦ Particle Reinforced
◦ Fiber Reinforced
Metal Matrix Composite
Historical Background
Fabrication Methods Solid State Method
a) Powder Metallurgy Method:
Fabrication Methods
b) Liquid State Methods:
1. Stir Casting
2. Squeeze Casting
3. Compo-Casting
Fabrication Methods
Microstructure and some
mechanical properties of fly ash
particulate reinforced AA6061
aluminium alloy composites
prepared by compo casting
Chemical Composition
Mechanical Properties
Conclusion No formation of any intermetallic compounds due to interfacial reaction
The fly ash particles were thermodynamically stable at the compo-casting temperature
The majority of the fly ash particles were located in intra granular regions
The fly ash particles were dispersed homogeneously in the AMCs
The interface between the aluminium matrix and fly ash particle was clear and the bonding was proper
The incorporation of fly ash particles into semi solid aluminium alloy improved the wettability
The addition of fly ash particles enhanced the micro hardness and tensile strength of the AMCs
References1. J. David Raja Selvam, D.S.Robinson Smart, I.Dinaharan, Microstructure and some
mechanical properties of fly ash particulate reinforced AA6061 aluminium alloy
composites prepared by compo casting, Materials and Design 49 (2013) 28-34
2. Ervina Efzan M.N, Siti Syazwani N,Mohd Mustafa Al Bakri Abdullah Fabrication
Method of Aluminium Matrix Composite: A Review, Key Engineering Materials 700
(2016) 102-110
3. I. Narasimha Murthy, D. Venkata Rao, J. Babu Rao, Microstructure and mechanical
properties of aluminum–fly ash nano composites made by ultrasonic method,
Materials and Design 35 (2012) 55–65
4. H.C. Anilkumar, H.S. Hebbar, K.S. Ravishankar, Mechanical Properties Of Fly Ash
Reinforced Aluminium Alloy (Al6061) Composites, International Journal of
Mechanical and Materials Engineering 6 (2011) 41-45
5. Mr.Sharanabasappa R Patil, Prof B.S Motgi, A Study on Mechanical Properties of
Fly Ash and Alumina Reinforced Aluminium Alloy Composites, IOSR Journal of
Mechanical and Civil Engineering 7 (2013) 41-46
6. S. Sarkar, S. Sen, S. C. Mishra, Studies on Aluminium – Fly-Ash Composite
Produced by Impeller Mixing, Journal of Reinforced Plastics and Composites, 29
(2010) 32-39