Investigation of corrosion behavior for Al-Sn-Zn Alloys
Fatma MEYDANERİ TEZEL Serdal HAN Çağla Elçin YAĞCIOĞLU
AbstractAluminum 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.