Margraves, Charles H.; Mahtabi Oghani, Mohammad Javad, 1982-
College of Engineering and Computer Science
University of Tennessee at Chattanooga
Place of Publication
Biodegradable metals have been under significant research as alternatives to the nonbiodegradable materials in the field of medical implants. In this scope, magnesium and its alloys were widely investigated due to their superior biocompatibility. However, magnesium is a highly active metal and has a high corrosion rate in aqueous environments especially body fluids. Considerable research was done to develop numerical models towards an inexpensive designing tool to assess the change of the implant’s geometry and mechanical strength during degradation. To the best of our knowledge, the effect of coating was not investigated before in the literature in terms of modeling the corrosion behavior. In this work, a 2D finite element model is introduced to calibrate a diffusion-controlled corrosion model in high purity magnesium whilst investigating the effect of adding the coating layer numerically. In vitro corrosion tests and solubility tests, were conducted to calibrate the model for the first time.
M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.
Biodegradable products; Corrosion; Finite element method; Mathematical models; Orthopedic implants
xii, 114 leaves
Abdalla, Moataz, "Corrosion modeling of magnesium-based medical implants" (2021). Masters Theses and Doctoral Dissertations.