Committee Chair

Ibrahim, Hamdy

Committee Member

Margraves, Charles H.; Mahtabi Oghani, Mohammad Javad, 1982-

Department

Dept. of Mechanical Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

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.

Degree

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.

Date

5-2021

Subject

Biodegradable products; Corrosion; Finite element method; Mathematical models; Orthopedic implants

Keyword

Corrosion; finite element; magnesium; modeling

Document Type

Masters theses

DCMI Type

Text

Extent

xii, 114 leaves

Language

English

Rights

http://rightsstatements.org/vocab/InC/1.0/

License

http://creativecommons.org/licenses/by/4.0/

Date Available

5-31-2022

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