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The Institute’s Mechanical Technology Department organizes a specialized course

The-Department-of-mechanical-technologies-at-the-Institute-organizes-a-specialized-course-ِAR

The Institute's Mechanical Technology Department organizes a specialized course

DTI

With the title of corrosion and methods of prevention.

Under the patronage of Professor Dr. Alia Abbas Al -Attar, President of the Respected University, and under the supervision of Assistant Professor Dr. Maha Al -Taif Jassem, Dean of the Institute, the Department of Mechanical Technologies in the institute and during the current February and within the scientific activities implemented by the departments of the institute and through the scientific unit a specialized course entitled (erosion and methods of prevention) and was held by each of
Dr. Ghassan Jassim Hadi
M. Yasser Iyad Taha
From the above section, a number of employees of the institute participated in it.
The course aimed:
Definition of erosion, its most important types and the reasons for its occurrence.
Knowing the damage caused by mineral erosion at the economic and humanitarian level.
Knowing the methods of preventing food and methods of protecting the metal
The course dealt with the following axes:
The first axis: (Shame erosion): Sterile erosion leads to the destruction layer between two parts in the structure, which allows the water to enter inside, [3] As for oxygen cells, they are necessary in erosion of cracks in a wet atmosphere.
The second axis (stress erosion): It is also called pressure erosion, and it occurs in a suitable environment with serial steps, where the effect of pressure on the metal begins and causes local weakness of the protection oxide paint that allows contact between the metal and the electrolyte, which leads to the occurrence of siphon in the metal, and then Increased the formation of the hole over time, and then the erosion of stress occurs in the sharp base of the hole, and the erosion is enhanced in the growth of the fissure, and the increased slit increases the material.
The third axis (Al -Jalfanian erosion): This type occurs when two different minerals are connected to the electrolyte, and one of the minerals is eroded to protect the other metal.
The course showed:
The corrosion between granules occurs this type of corrosion in stainless steel in addition to other minerals, where it occurs when the boundaries of the granules in the mineral are formed from the animal, and the inner granules of the cathode, and it occurs when the metal is heated to a temperature ranging between 425 and 870 ° C. , Where the chrome in the stainless steel interacts with carbon, and thus the chromium carbide particles are formed at the boundaries of the granules, and thus the concentration of chrome is decreased in it, which leads to its erosion.

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