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Phase field modelling of stress assisted corrosion of biodegradable magnesium alloys
Author(s) -
Ma Songyun,
Zhang Dawei,
Markert Bernd
Publication year - 2019
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201900442
Subject(s) - materials science , magnesium , microstructure , corrosion , metallurgy , porosity , stress (linguistics) , composite material , linguistics , philosophy
Biodegradable magnesium alloys are regarded as promising biomaterials for orthopaedic fixation devices due to obvious advantages over conventional permanent implants. Experimental studies have shown that the stress state has a significant impact on the corrosion rate of biodegradable magnesium alloys. In the present work, the phase field modelling approach is used to simulate the stress assisted corrosion of biodegradable magnesium alloys with porous microstructures. The simulation results demonstrates effects of the porous microstructure on the degradation behaviour of biodegradable magnesium implants.