Corrosion Laboratory

Aim:

Corrosion, which leads to corruption of metals by electrochemical reactions, is an important factor that controls the design and maintenance of the facilities and equipment. Losses of about 4.5% of the gross national revenue are corrosion based and there is a need to be informed, conduct research and take precautions. The Corrosion Laboratory was founded for to give more information on the subject for research conducted at the undergraduate and graduate level. In addition, solving corrosion problems of industry and carrying out educational projects are also main reasons for founding the laboratory. .

Tests and Analysis Performed in the Laboratory:

• Measuring of the electrode potential, corrosion speed and polarization resistance of metals in different solutions,
• Examining the organic and inorganic coatings behavior, salt spraying test,
• Examining of pitting corrosions of metallic materials,
• Investigation of materials microstructures behavior of corrosion, material selection for corrosive environments,
• Determining the anodic and catholic polarization curves, measuring critical pitting corrosion potential and temperature,
• Determination of granular and inter-granular corrosion behavior of metals; dezincification test, corrosion in Weld Seams, and establish the grain boundary sensitivity,
• Electrolytic polishing, coating and measuring of the galvanic coatings thickness.

Equipment:

• Electrochemical Test System
• Potential Drop Device
• Magnetic Stirrer and Heater
• Salt Spraying Test
• Water Purification Device
• Water Bath Test
• Precision BalanceDevice

Electrochemical Test System:

This device has several functional abilities, and is used for potentiostat/galvanostat electrochemical empedance experiment and electrodeposition. Also controlled corrosion experiments can be conducted under controlled potentials. It is used also for critical pitting temperature measurement.

Potential Drop Mechanism:

In environments that are exposed to corrosion and mechanical stresses, it is used to locate the crack initiation and propagation

Water Bath:

24 lt. capacity, with the temperature range of 0 – 80oC

Magnetic Stirrers and Heaters:

These machines are employed for preparing the solutions by changing the temperature and mixing rate. There is one active magnetic stirrer and heater in the chemistry laboratory.

Precision Balance:

0.0001 g. precision balance with density and porosity measurement apparatus

Water Distillation device:

For making distilled water

pH Meter:

Used for measuring pH of the solutions between 0 – 1000C by using standard buffer solutions.

Salt Spraying Test Device:

For conducting corrosion experiments on specimens, which have been exposed to corrosive salts by spraying.