|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Biological Materials Science
||The Influence of Reactive Oxygen Species in in Vitro Corrosion Resistance of CoCrMo
||Sangram Mazumder, Mangesh V. Pantawane, Narendra B. Dahotre
|On-Site Speaker (Planned)
The electrochemical (corrosion) products from the CoCrMo implants may stimulate the in vivo immune and inflammatory responses leading to local inflammation. In light of this, here, we report an in vitro electrochemical test in presence of the reactive oxygen species; hydrogen peroxide, often found in real-time in vivo inflammatory conditions. Open circuit potential, potentiodynamic polarization Tafel plots and electrochemical impedance spectroscopy indicated change in electrochemical response of the laser-additively fabricated CoCrMo in presence of small amount of hydrogen peroxide in simulated body fluid. Such results indicated inflammation-induced electrochemical activity of the laser additively fabricated CoCrMo samples. X-ray diffraction was used in phase identification of the laser-additively fabricated CoCrMo. Scanning electron microscopy was used to observe the microstructural traits and local corrosion pattern. The electrochemical products were further characterized using X-ray photoelectron spectroscopy.
||Additive Manufacturing, Biomaterials, Copper / Nickel / Cobalt