SEARCH RESULT

With the development of technology, light engineering alloys have recently become a popular group of material. The most important consideration in the development of these alloys is production cost, applicability in technology, temperature and composition. For this reason, in this study, the effects on corrosion resistance of composition and annealing parameters in light Al-based Al-Mg-Sb eutectic alloy systems with commercial and industrial design were investigated depending on precipitation and intermetallic phase distribution Al based Mg-Al-Sb eutectic alloys were melted by induction furnace and were casted into kokil mould. Then, samples were annealed at 573 K with vacuum furnace. Cyclic Potentiostatic test was applied with the PARSTAT 4000 device for corrosion rate. In the experiment, firstly, the change in corrosion potentials between the working electrode and the reference electrode since the dipped reference electrode and working electrode into the 3.5% NaCI solution was measured as mV versus time without passing current on the system. After reaching the equilibrium potential (Ekor), potentiodynamic polarization curves were recorded from the cathodic to anodic direction. Measurements were carried out at open circuit potential (15 min), and the graphs of the change of the potential versus the current density were obtained, and the corrosion rates were determined for the heat treatment and heat-free samples.

International Symposium on Light Alloys and Composite Materials
UHAKS

Fatma MEYDANERİ TEZEL Ozan Akyol Berkay Aras Çağla Elçin YAĞCIOĞLU

Aluminum is one of the most commonly found elements in nature and the most commonly used metal after engineering steel. Recently, aluminum and its alloys are an important material for engineers and designers in industry due to their low strength, good thermal and electrical conductivity, increased strength properties and corrosion resistance. Since aluminum and its alloys have many excellent properties such as low density, good corrosion resistance, machinability and electrical conductivity compared to other materials, it is widely used in aircraft and automotive industry. The aircraft and the automotive industry need to use light metals with high strength. High-performance materials, both very durable and lightweight, must be used in the manufacture of air and space vehicles. These loads are subjected to thermal shocks with sudden temperature changes in the power system, corrosion with the effect of ambient conditions, consequent fatigue of different loads encountered in working conditions of these materials. The formation and progress of fatigue cracks is one of the most important issues in aircraft design. Aluminum alloys are economical in many applications. It is used in the automotive industry, in the aviation industry, in the making of machines and devices, as cooking vessels, in the bodies of electronic devices, pressure vessels, cryogenic applications and other fields. Therefore, in this study, the corrosion behaviors of Al-Sn-Zn alloys were determined by applying the mass loss corrosion test. The mass loss-time graph obtained is given in Figure 1 According to the test results, the sample with 70% Sn content undergoes less corrosion over time, while the samples containing Zn and Al undergo more corrosion over time.

International Symposium on Light Alloys and Composite Materials
UHAKS

Fatma MEYDANERİ TEZEL Serdal HAN Çağla Elçin YAĞCIOĞLU