Magnesium (Mg) for biodegradable medical implant devices are limited by fast degradation rates of Mg. The study presents alloy design and thermomechancial processing to optimize mechanical and biological properties of a new proprietary Mg alloy. Corrosion profiles were evaluated by in vitro and in vivo studies.
Magnesium (Mg) alloys are gaining interest for biodegradable medical implant devices due to a good combination of mechanical properties and biocompatibility. Nevertheless, the fast degradation rates of Mg and its biocompatible alloys in the aggressive physiological environment impose limitations on their clinical applications. This necessitates the development of Mg based implants with controlled degradation rates to match the kinetics of the bone and tissue healing process and to avoid any complications or issues that might negatively impact surrounding tissues. The current study presents alloy design and thermomechancial processing to optimize the mechanical and biological properties of a new proprietary Mg based alloy. Its corrosion profiles have been evaluated by a combination of in vitro and in vivo experimental studies. The corrosion rates of laboratory samples and prototype devices have been examined via long term immersion studies by measuring the cumulative amount of hydrogen (H2) that is emitted by samples. The cumulative H2 measurements have a direct correlation to the mass loss that the Mg alloy samples undergo during the duration of the tests. The results of the current in vitro corrosion studies are compared to 52 week small animal studies to develop predictive models for designing future biomedical devices.
Key words: conference papers, 2017 conference papers, magnesium, alloys, thermomechanical processing, bioabsorbable implants, corrosion
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact NACE First Service for assistance.
Use this error code for reference:
Please login to use NACE Standards Credits*
* NACE Members receive NACE Standards Credits in order to redeem eligible NACE Standards and Reports in the Store
You are not a NACE Member.
NACE Members enjoy many benefits, including NACE Standards Credits which can be used to redeem eligible NACE Standards and Reports in the Store.
You can visit the NACE Membership Page to learn about the benifits of NACE membership.
You have previously purchased this item.
Go to Downloadable Products in your NACE Store profile to find this item.
You do not have sufficient NACE Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your NACE Standards Credit(s)
Please review your transaction.
Click on 'REDEEM' to use your NACE Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your NACE Store Profile to find and download this item.