Examination of hemocompatibility and corrosion resistance of electrical discharge-treated duplex stainless steel (DSS-22

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T.C. BIOLOGICAL AND BIOMIMETIC MATERIALS

Examination of hemocompatibility and corrosion resistance of electrical discharge‑treated duplex stainless steel (DSS‑2205) for biomedical applications Amit Mahajan1   · Sarabjeet Singh Sidhu2 · Sandeep Devgan1 Received: 14 April 2020 / Accepted: 21 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract The present article focuses on the electrical discharge treatment of duplex stainless steel (DSS-2205) to enhance its biological responses and corrosion resistance. Electrical discharge machining (EDM) was executed at different spark energy levels (by varying input factors) and 18 different morphological DSS substrates were prepared according to the L18 experimental array. Further, an electrochemical potentiodynamic test was performed on the unmachined and treated surfaces to investigate the corrosion performance. Moreover, the high corrosion resistance substrates along with untreated specimen were further analyzed for the in-vitro interaction with human red blood cells. The results claimed that the surface treatment by EDM significantly enhances the corrosion resistance (