Journal of Materials and Mechatronics: A

Yazarlar: Şükrü TALAŞ, M. Seyit SARI, Ahmodou SOW, Halil AKTAŞ

Konular:Metalürji Mühendisliği

Anahtar Kelimeler:54SiCr6 Steels,60SiMn5 Steels,Heat treatment,Microstructure

Özet: Steels, the most widely used alloy in the world, are the most concrete example in the study of the structure-property-performance relationship in materials, which is the clearest function of the science of materials. Steels exhibit very different properties when other types of atom are present in the solid solution. Due to these changes in properties, the performance of the material in the area of use is determined. When silicon is added to steels in certain proportions, it is important to provide the necessary mechanical properties in steel industry as spring steel, and these steels are generally classified as silicon spring steels. Heat treatments are applied to determine, regulate and improve the properties and performances of steels other than their chemical properties. These heat treatments are carried out with different methods for different purposes. In this study, the hardness of silicon containing spring steels when it is produced, then how hard it reacts in sudden cooling, when water or oil is used as cooling medium, the final hardness and microstructures are examined by tempering followed by hardening. Results showed that 54SiCr6 produced martensite+bainite structure as opposed to fully martensitic 60SiMn5 specimen after quenching process.

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