Akademik Veri Yönetim Sistemi
1 st International Conference on Additive Manufacturing and Post-Processing, ICAMPP 2025, Piran, Slovenya, 7 - 09 Eylül 2025, ss.97, (Özet Bildiri)
Components fabricated by the laser powder bed fusion (L-PBF) process often exhibit poor surface quality characterized by high roughness. Some of the origins of roughness, such as adhesion of the partially melted powder to the surface, is inherent to the L-PBF process itself and cannot be fully eliminated through parameter optimization. Consequently, postprocessing treatments are necessary to enhance the surface finish of additively manufactured parts. One promising post-treatment is plasma electrolytic polishing (PeP), an electrochemical technique which employs high voltage to generate a plasma layer on the surface of a component immersed in an electrolyte. PeP utilizes water-based salt solutions and is an effective polishing process of complex geometries, including curved surfaces and internal features. Its environmental-friendly nature and efficiency have attracted significant interest in research. However, challenges remain regarding the stability, repeatability, and scalability of the PeP process for industrial applications. Further research is needed to understand the resulting surface properties and develop standardized procedures. In this study, samples of Ti-6Al-4V alloy are produced via the L-PBF process. Surface characteristics will be evaluated using a roughness tester and scanning electron microscopy (SEM). The PeP technique will then be applied to reduce surface roughness of the as-build samples (having Ra in range of 10-15 μm on the side surfaces), aiming in Ra reduction down to the submicrometer range. Finally, the corrosion behavior of samples, namely, as-fabricated, mechanically polished, heat-treated and mechanically polished, and heat-treated and PePpolished, will be assessed using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization tests.