Peer-Reviewed Journal Details
Mandatory Fields
Grogan, JA,Leen, SB,McHugh, PE
2014
May
Acta Biomaterialia
A physical corrosion model for bioabsorbable metal stents
Published
WOS: 14 ()
Optional Fields
Finite element analysis Magnesium Bioabsorbable stent Corrosion GALVANIC CORROSION COMPUTER-SIMULATION MAGNESIUM-ALLOY STAINLESS-STEEL TEXTURE DESIGN MG
10
2313
2322
Absorbable metal stents (AMSs) are an emerging technology in the treatment of heart disease. Computational modelling of AMS performance will facilitate the development of this technology. In this study a physical corrosion model is developed for AMSs based on the finite element method and adaptive meshing. The model addresses a gap between currently available phenomenological corrosion models for AMSs and physical corrosion models that have been developed for more simple geometries than those of a stent The model developed in this study captures the changing surface of a corroding three-dimensional AMS structure for the case of diffusion-controlled corrosion. Comparisons are made between model predictions and those of previously developed phenomenological corrosion models for AMSs in terms of predicted device geometry and mechanical performance during corrosion. Relationships between alloy solubility and diffusivity in the corrosion environment and device performance during corrosion are also investigated. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
10.1016/j.actbio.2013.12.059
Grant Details
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