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Mechanical and Corrosion Testing of Magnesium WE43 Specimens for Pitting Corrosion Model Calibration
Author(s) -
Boland Enda L.,
Shirazi Reyhaneh Neghabat,
Grogan James A.,
McHugh Peter E.
Publication year - 2018
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201800656
Subject(s) - materials science , corrosion , pitting corrosion , metallurgy , magnesium alloy , magnesium , alloy
Computational modeling can play an important role in the analysis, design, and development of complex medical devices such as biodegradable coronary stents. In this study, experimental mechanical and corrosion testing is conducted to characterize the mechanical and corrosion behavior of magnesium WE43 alloy, a candidate base material for biodegradable magnesium alloy stents. Previously developed uniform and pitting corrosion models are calibrated based on in vitro mechanical and corrosion testing of magnesium WE43 alloy specimens. The calibrated pitting corrosion model can capture the mechanical and corrosion behavior of magnesium WE43, including the experimentally observed non‐linear reduction in failure strength with mass loss, whereas the uniform corrosion model is incapable of capturing this trend. The calibrated corrosion models will be used in future research on magnesium alloy stents.