ALEKSANDRA - CORROSION

CORROSION – PROCESSES WHICH DESTROY MICROSTRUCTURE OF MATERIAL. IT IS CHEMICAL AND ELECTROCHEMICAL REACTION BETWEEN MATERIAL AND ENVIRONMENT.

* CORROSION IT IS LOOSING OF ELECTRONS OF METALS REACTING WITH WATER AND OXYGEN.
* RUST(the most familiar example of corrosion)= ELECTROCHEMICAL CORROSION
* CORROSION TAUGHT USUALLY METALIC MATERIALS PRODUCTING OXIDE AND SALT ON IT SURFACE
* IT APPEARS IN FOLD OF MATERIAL AND NEXT FOLLOWS INSIDE OF THE SUBJECT.

FACTORS INFLUENCE ON CORROSION PROCESS:

Pollutions
Environment
Changes of temperature and pressure
Tension of material
Crystalic structure of material

TYPE OF CORROSION:

*ATMOSPHERE CORROSION,

*CHEMICAL CORROSION,

*ELECTROTECHNIC CORROSION,

*BIOLOGICAL CORROSION,

*NUCLEAR CORROSION,

*SELECTIVE CORROSION,

*EVEN CORROSION,

ETC.