Expain the advantages and disadvantages of corrosion
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Advantages of corrosion -
Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
Corrosion prevents corrosion :Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal
Disadvantages
It is very heavy. The density of Fe is almost twice that of Ti, and is almost 3 times higher than Al. There is a reason why there is not much Steel in aerospace vehicles.
It corrodes easily. Because Fe is easy to convert from ore to native metal, it is easy to turn back into oxide, which it really wants to do. A lot of time, energy, and money are spent every year by people trying to keep Iron and Steel from rusting away. It is a never ending battle.
Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
Corrosion prevents corrosion :Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal
Disadvantages
It is very heavy. The density of Fe is almost twice that of Ti, and is almost 3 times higher than Al. There is a reason why there is not much Steel in aerospace vehicles.
It corrodes easily. Because Fe is easy to convert from ore to native metal, it is easy to turn back into oxide, which it really wants to do. A lot of time, energy, and money are spent every year by people trying to keep Iron and Steel from rusting away. It is a never ending battle.
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