Abstract
The growing demand for implants has seen increasing interest in the introduction of new technologies and surface modification methods of metal biomaterials. This research aimed to produce and characterize a porous layer grown on austenitic stainless steel 316L, obtained via the anodization process near the micro-arc oxidation, i.e., low voltage micro-arc oxidation (LVMAO). The discussed layer significantly influences the properties of metallic biomedical materials. The surface topography, layer thickness, surface roughness, pore diameter, elemental composition, crystal structure, and surface wettability were assessed for all anodized layers, together with the resultant corrosion resistance. Attention was paid to the influence of the process parameters that affect the specification of the produced layer. The obtained results showed surface development and different sized pores in the modified layers, as well as an increase in corrosion resistance in the Ringer’s solution.
Highlights
There is currently a growing demand for materials that can replace damaged or weakened bones, joints, muscles, and ligaments
The layers obtained with the use of the lowest voltage, sample I (100 V), did not uniformly cover the alloy surface (Figure 1b), with visible areas showing an absence of the porous layers
The aim of the work was the modification the surface of 316L steel, which would be characterized by a developed surface topography, a given porosity, and a specific chemical composition
Summary
There is currently a growing demand for materials that can replace damaged or weakened bones, joints, muscles, and ligaments. Metal biomaterials, including cobalt-chromium alloys (CoCr), titanium (commercially pure Ti) as well as titanium alloys (e.g., Ti-6Al-4V, Ti13Nb13Zr), and stainless steels (316L), have been used for a long time. Due to their high corrosion resistance, good strength, ductility, and high hardness [2], austenitic steels are successfully used as screws, intramedullary nails, fixation elements, etc. They are characterized by a fine-grained structure and a low level of non-metallic inclusions, ensuring adequate strength and ductility of the steel, and reducing the likelihood of cracks. The chemical composition of austenitic steels determines their single-phase and paramagnetic structure, as well as good resistance to pitting corrosion and good mechanical properties [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
