Akademik Veri Yönetim Sistemi
12TH INTERNATIONAL ISTANBUL SCIENTIFIC RESEARCH CONGRESS ON LIFE, ENGINEERING, AND APPLIED SCIENCES, İstanbul, Türkiye, 21 - 23 Ocak 2023, ss.5-13, (Tam Metin Bildiri)
Among the biometals, austenitic stainless steels have gained an increasing potential in recent years
due to their high mechanical strength and being more economical. Medical implants made from 316L stainless steels are widely and successfully used in various orthopedic applications. However, its low
corrosion resistance limits its use as implant materials for biomedical applications. The change in the
microstructure of the steels with heat treatment also affects the grain size and changes the corrosion
behavior. In addition to this feature, heat treatment modifies the surface by affecting the biocorrosion
and hardness properties through the oxide films formed on the surface.
In this study, 316L austenitic stainless steel was cooled in different environments (water, oil and air) by
applying high temperature heat treatment and the effects of phase transformations in the microstructure
on corrosion and hardness behavior were investigated. For this purpose, scanning electron microscopy
(SEM), energy dispersive X-ray spectroscopy (EDS), electrochemical corrosion and hardness tests were
performed on heat treated samples. According to the test results, it was determined that the microstructure
changed as a result of heat treatment affected the corrosion and hardness properties. Especially after
cooling in oil and air, an increase in corrosion resistance of the parts was observed.
Keywords: 316L stainless steel, heat treatment, biocorrosion, hardness.