Examination of hemocompatibility and corrosion resistance of electrical discharge-treated duplex stainless steel (DSS-2205) for biomedical applications

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 (< 90%) as well as the biological responses of DSS alloy. The current of 10A, on-time = 60 µs, off-time = 150 µs, machining with W-Cu electrode in deionized water was witnessed as the best set of parameters in both corrosion and hemocompatibility test. Thus, surface alteration of DSS-2205 by EDM can be believed as a promising technique for improving the corrosion resistance and biological responses that essential for biomedical applications.

Evaluation of welding-induced residual stress and distortion in A-TIG welding of duplex stainless steel

“…As mentioned earlier, some research has been conducted based on residual stress and distortion simulation on duplex Stainless steel. Considering wide applications of duplex stainless steel for biomedical [30], petrochemical [9], automobile structural applications [31], marine equipment structures, concrete structures in oil and gas pipelines [32,33], etc; further investigations are needed to study various aspects of micro and macro structures of these kinds of steels. In this study, residual stress and distortion in A-TIG welding of Duplex 2205 steel are evaluated by an uncoupled finite element model with ABAQUS, and the accuracy of the corresponding results is studied.…”

Computer‐Aided Analysis of the Corrosion Inhibition by Carbon‐Based Thin‐Film Coating on Vascular Bare Metal Stent Models

“…The corrosion resistance ability of a biomaterial is essential for the durability and hemocompatibility of the material. [ 29,30 ] Therefore, recent studies have become the center of attention in this field by conducting within the scope of biomaterials’ corrosion behavior and their ISR risks. [ 31–33 ]…”

“…[28] The corrosion resistance ability of a biomaterial is essential for the durability and hemocompatibility of the material. [29,30] Therefore, recent studies have become the center of attention in this field by conducting within the scope of biomaterials' corrosion behavior and their ISR risks. [31][32][33] Høl et al concluded within their experimental study that metal ion releases due to the stent corrosion contribute to restenosis in time because of the inflammatory reactions and allergic responses.…”

Grain Boundary and Microstructural Characterization of Heat-Treated As-Rolled 2205 Duplex Stainless Steel

“…Previous research has demonstrated that 2205 DSS has exceptional intrinsic and functional attributes. The outstanding characteristics of 2205 duplex stainless steel have attracted and continue to attract a vast number of users for different applications such as antimicrobials [4], industrial-marine environment [5], and hemocompatibility [6], to mention a few. Its extensive use results from its alloying elements, such as molybdenum and chromium, which are resistant to corrosion and oxidation processes [7].…”