Posted by Anu on June 18, 2014, 4:53 p.m.
THE SPONTANIOUS DESCRUCTION OF METALS DUE TO
THEIR INTERACTION WITH ENVIORNMENT IS CALLED CORROSION
CORROSION IS OF THREE TYPES CHEMICAL,BIOCHEMICAL AND
ELECTROCHEMICAL CORROSION IS ACCELERATED BY THE PRESENCE OF
REACTIVE GASES IN THE AIR PRESENCE OF ELECTROLYTES IN WATER.
CORROSION IS PREVENTED BY COATING THE SURFACE WITH OIL,PAINT
OR BY DEPOSITING A NOBLE METAL ON IT .CATHODIC PROTECTION IS
ANOTHER SIMPLER METHOD OF PREVENTING CORROSION
THEIR INTERACTION WITH ENVIORNMENT IS CALLED CORROSION
CORROSION IS OF THREE TYPES CHEMICAL,BIOCHEMICAL AND
ELECTROCHEMICAL CORROSION IS ACCELERATED BY THE PRESENCE OF
REACTIVE GASES IN THE AIR PRESENCE OF ELECTROLYTES IN WATER.
CORROSION IS PREVENTED BY COATING THE SURFACE WITH OIL,PAINT
OR BY DEPOSITING A NOBLE METAL ON IT .CATHODIC PROTECTION IS
ANOTHER SIMPLER METHOD OF PREVENTING CORROSION