Corrosion Behavior of Zirconium Based Alloys in Simulated Body Fluids

2007 ◽  
pp. 1489-1492
Author(s):  
Yusuke Tsutsumi ◽  
Yousuke Takano ◽  
Hisashi Doi ◽  
Kazuhiko Noda ◽  
Takao Hanawa
Keyword(s):  
Corrosion Behavior ◽  
Body Fluids ◽  
Simulated Body Fluids

Corrosion behavior of biomedical AZ91 magnesium alloy in simulated body fluids

2007 ◽  
Vol 22 (7) ◽  
pp. 2004-2011 ◽  
Author(s):  
Yunchang Xin ◽  
Chenglong Liu ◽  
Xinmeng Zhang ◽  
Guoyi Tang ◽  
Xiubo Tian ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Visual Observation ◽  
Body Fluids ◽  
Open Circuit ◽  
Az91 Magnesium Alloy ◽  
Degradation Rates ◽  
Az91 Magnesium ◽  
Simulated Body Fluids

Fast degradation rates in the physiological environment constitute the main limitation for magnesium alloys used in biodegradable hard tissue implants. In this work, the corrosion behavior of AZ91 magnesium alloy in simulated body fluids (SBF) was systematically investigated to determine its performance in a physiological environment. The influence of the main constituent phases on the corrosion behavior was studied by in situ visual observation and scanning electron microscopy. Energy dispersive x-ray spectrometry and Fourier transfer infrared spectroscopy revealed that both calcium and magnesium phosphates are present in the corroded products besides magnesium oxide. Electrochemical methods including open circuit potential evolution and electrochemical impedance spectroscopy were used to investigate the mechanism. The corresponding electrode controlled processes and evolution of the corrosion products layer were discussed. The degradation rate after immersion in SBF for seven days was calculated from both the weight loss and hydrogen evolution methods.

Effects of zirconium and oxygen plasma ion implantation on the corrosion behavior of ZK60 Mg alloy in simulated body fluids

2014 ◽  
Vol 82 ◽  
pp. 7-26 ◽  
Author(s):  
Mohammed Ibrahim Jamesh ◽  
Guosong Wu ◽  
Ying Zhao ◽  
David R. McKenzie ◽  
Marcela M.M. Bilek ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Corrosion Behavior ◽  
Oxygen Plasma ◽  
Body Fluids ◽  
Mg Alloy ◽  
Simulated Body Fluids

Corrosion Behavior of Micro-Arc Oxidized Magnesium with Calcium Phosphate Coating in Flowing Simulated Body Fluids

2015 ◽  
Vol 162 (9) ◽  
pp. C426-C432 ◽  
Author(s):  
GuangYi Liu ◽  
Shawei Tang ◽  
Jin Hu ◽  
Yufen Zhang ◽  
Yaming Wang ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Corrosion Behavior ◽  
Body Fluids ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Simulated Body Fluids

scholarly journals Corrosion Properties of a Low-Nickel Austenitic Porous Stainless Steel in Simulated Body Fluids

CORROSION ◽  
10.5006/2720 ◽  
2018 ◽  
Vol 74 (6) ◽  
pp. 683-693 ◽  
Author(s):  
C. Garcia-Cabezon ◽  
F. Martin-Pedrosa ◽  
Y. Blanco-Val ◽  
M.L. Rodriguez-Mendez
Keyword(s):  
Stainless Steel ◽  
Powder Metallurgy ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Body Fluids ◽  
Water Cooling ◽  
High Nitrogen ◽  
Cooling Process ◽  
Corrosion Properties ◽  
Simulated Body Fluids

Nickel can cause severe allergic reactions. Therefore, efforts are made to reduce the content of nickel in austenitic stainless steels (SS). Powder metallurgy (PM) techniques can produce this steel in a highly affordable way. A novel low-nickel high-nitrogen austenitic powder metallurgy PM stainless steel is investigated in terms of corrosion behavior. Nitrogen, because of its gammagenic effect, is the applied sintering atmosphere. Two sintering processes are applied by controlling the sinter-cooling rate (furnace- and water-cooling). This material shows an austenitic microstructure free of precipitates only after the water-cooling process. The electrochemical behavior in two simulated body fluids—phosphate buffered saline (PBS) solution and Ringer solution—are studied. Corrosion behavior is evaluated by means of anodic polarization measurements and cyclic polarization curves. In addition, Electrochemical Impedance Spectroscopy is used to evaluate the corrosion resistance of this steel in PBS at open circuit potential and at 100 mV above corrosion potential. The water-cooling process promotes better corrosion behavior in simulated body fluids for high nitrogen and low nickel than a conventional (high nickel) austenitic PM SS 316LN type.

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