Journal
CORROSION SCIENCE
Volume 132, Issue -, Pages 116-124Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2017.12.030
Keywords
Magnesium; Corrosion resistance; Deformation; Hard coating; Biomaterials
Funding
- AcRF from Ministry of Education (MOE) of Singapore [2017-T1-001-246 (RG51/17)]
- Nanyang Technological University
- National Research Foundation (NRF) of Korea [2015R1D1A1A01057311]
- National Science Foundation (NSF) [CMMI-1362893]
- University of New Hampshire
- Div Of Civil, Mechanical, & Manufact Inn [1362893] Funding Source: National Science Foundation
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Surface patterns can be used as a selective coating platform on metal surfaces, in particular, under various deformation conditions because they induce local strain gradients along with pattern geometry. In this study, hard and flexible coating materials were introduced to regions with small and large deformations, respectively, on patterned magnesium (Mg) surfaces. Despite significant deformation, a polymer-ceramic coating on patterned Mg maintained its protection, as opposed to a ceramic coating on a flat Mg surface. Our proposed approach can be implemented in various Mg-based medical-device platforms by optimizing surface patterns on Mg depending on their loading conditions for clinical use.
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