A Monte Carlo Simulation of Pitting Corrosion of Magnesium Alloys: (OAJBEB) - Lupine Publishers

A Monte Carlo Simulation of Pitting Corrosion of Magnesium Alloys by Chia-Jung Chang, Tin-Kan Hung, Wei-Ching Hung and Chih-Han Chang in Open Access Journal of Biomedical Engineering and Biosciences (OAJBEB) in Lupine Publishers

In recent years, many studies on magnesium (Mg) alloys are focused on developing biodegradable medical implant. Interests are also placed upon the implant geometry related to corrosion processes. In this study, a simulation model to analyze pitting corrosion of Mg alloys is established with a Monte Carlo procedure. The Mg specimen is meshed with uniform hexahedral micro elements. Each element can be characterized by a corrosion probability (CP) for a time interval. The CP value is based on factors such as the number of surfaces exposed to the solution, properties of oxide layer, the porous structure and the Mg matrix. The results are compared with experimental measurement using a micro computed tomography (CT). The computational model appears to be useful for long-term simulation and analysis of corrosion behaviors and prediction for biodegradable implant development.

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