Surface modification of Fe35Mn alloy using anodic oxidation

• Grant number: 21/11562-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2022
• End date: December 31, 2022
• Field of knowledge: Engineering - Biomedical Engineering
• Principal Investigator: Ana Paula Rosifini Alves
• Grantee: Jasmine Keise de Oliveira Silva
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

The biodegradable metals are a new alternative for implantable materials whose functions in the body are temporary. The iron-based alloys present high mechanical resistance and high ductility making their use feasible in the manufacture of stents for example, but they present a very slow degradation rate. To improve the degradation rate and their mechanical proprieties it is necessary to consider three factors: addition of alloying elements to the iron, such as manganese, which provides an increase in mechanical strength and degradation rate, processing and surface modification as growth of iron oxide nano structures. The employment of Fe-35Mn alloy has been studied due to its mechanical properties, however, the degradation is still a factor to be explored. Thus, the main objective of this research is to obtain nanotubes on the surface of Fe-35Mn alloy from anodic oxidation, thus aiming better surface properties and consequently better biological and degradability.(AU)