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In: Mechanical Engineering

Provide an example of steel which has been coated for protection. Explain the coating, fabrication and...

Provide an example of steel which has been coated for protection. Explain the coating, fabrication and good and bad points of the coating selection.  

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Expert Solution

1. example of coated steel

open surface of nuts, bolts and washers , certain bridges, outer surface of boilers and certain steels with hazardous environment are the example of coated steel corrosion resistance is the main agenda behind the coating os stell.

2. coating of steel

there are various methods of coating of stell

a. Thermal spray metal coating

this type is used for corrosion protection certain railway tracks are the example of thermal spray metal coating

b. Hot deep galvanising

in this process steel is inserted into molten zinc , due to this process durability abrsion resistance and toughness increases

c. Paint coating

exposed surface of certain steel material are painted to avoid atmospheric contact

Good and Bad Point of Coating Selection

Pros.

1. Improved corrosion resistance

2. Prevention of rust

Cons.

1. High cost

2. before coating good surface finish is necessory

3. touch up difficulty

samet mamat answered 2 years ago
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