Corrosion is big challenge for engineers to design a structure from prolonged phase of time. There are numerous metals, which are extensively used and Aluminium is one of the communal metal, which has very extensive properties. This material is knowing for its corrosion resistance, and high strength to weight ratio. This paper bequeaths a sense about the different properties of aluminium and its alloys. Aluminium alloys are used all over the world to design many huge structures. The most dominant things for the engineers, that to protect aluminium alloy from the pitting corrosion localized corrosion and galvanic corrosion. They try to add different metals into Aluminium to increases corrosion resistance. But metal has tendency to corrode
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The Aluminium has its own tendency of corrosion resistance; when Aluminium is exposed to environment, It gets react with oxygen and form 〖Al〗_2 O_3 (Protective oxide coating) on its surface which helps to prevent from the corrosion like galvanic corrosion on Alloys. It has a density, which is an equal to one-third of the steel i.e high strength to weight ratio. It is the 2nd most material in terms of more malleability among all the metals and has high ductility because it has FCC structure and the dislocation glide is more in FCC crystal structure. The beneficial of Aluminium is that the conductivity is around twice that of copper. It is non-toxic and does not release any odours or stain yields with which it is linked. When Aluminium is recycled then there is no mortification of any properties of it and will get in new form if 5% of paid energy applied on …show more content…
TYPES OF ALUMINIUM ALLOYS:
THE BASIC TEMPER DESIGNATIONS OF THIS ALLOYS:
Letter Meaning
F Fabricated
O Annealed
H Strain Hardened
W Solution Heat-treated
T Thermally Treated
Table 1: Designation of different encryption of process.
WROUGHT ALUMINIUM ALLOYS:
The Aluminium alloys which are firstly cast as ingot and than after hot or cold work is done on it to get desire shape and size. The mechanical work like forming, rolling, extrusion, forging to make complex shapes, sheets, rolling, and improve the properties of the alloys.
Figure 2: Wrought Aluminium Alloys designation system.
Code designation of wrought Aluminium alloy: Xxxx : Principle of alloying element xXxx : Indicate its casting or ingot as 0 and 1
The Aluminium has its own tendency of corrosion resistance; when Aluminium is exposed to environment, It gets react with oxygen and form 〖Al〗_2 O_3 (Protective oxide coating) on its surface which helps to prevent from the corrosion like galvanic corrosion on Alloys. It has a density, which is an equal to one-third of the steel i.e high strength to weight ratio. It is the 2nd most material in terms of more malleability among all the metals and has high ductility because it has FCC structure and the dislocation glide is more in FCC crystal structure. The beneficial of Aluminium is that the conductivity is around twice that of copper. It is non-toxic and does not release any odours or stain yields with which it is linked. When Aluminium is recycled then there is no mortification of any properties of it and will get in new form if 5% of paid energy applied on …show more content…
TYPES OF ALUMINIUM ALLOYS:
THE BASIC TEMPER DESIGNATIONS OF THIS ALLOYS:
Letter Meaning
F Fabricated
O Annealed
H Strain Hardened
W Solution Heat-treated
T Thermally Treated
Table 1: Designation of different encryption of process.
WROUGHT ALUMINIUM ALLOYS:
The Aluminium alloys which are firstly cast as ingot and than after hot or cold work is done on it to get desire shape and size. The mechanical work like forming, rolling, extrusion, forging to make complex shapes, sheets, rolling, and improve the properties of the alloys.
Figure 2: Wrought Aluminium Alloys designation system.
Code designation of wrought Aluminium alloy: Xxxx : Principle of alloying element xXxx : Indicate its casting or ingot as 0 and 1