International Science and Technology Journal

The corrosion of the problems that face us daily and cause many losses in the industry to overcome this problem must study corrosion and how to address it and overcome or minimize the harm and these problems are the damage that occurs in the internal structure and the limits of the granule of metal (Stress corrosion cracking atherosclerosis - corrosion between the granules - crevice corrosion) To minimize this damage, the internal structure and control of particle size are studied and analyzed using heat treatment. The roughness of surfaces also plays an important role in overcoming this problem. Therefore, a group of samples of carbon steel was introduced and presented. The process of heat treatment was carried out in different media to give it a different microscopic structure to study the extent of its effect on the different eating media (alkaline - base - moderate). The extent of their impact on corrosion within those circles. This process showed that the process of heat treatment caused the small size of the granules and the surface of the granule, which made it more resistant to corrosion and also the surface of the smooth erosion rates were lower, because the process of polarization is lower in the soft surfaces and reduce the process of corrosion.