TY - JOUR
T1 - Assessment of corrosion resistance and metal ion leaching of nitinol alloys
AU - Haider, Waseem
AU - Munroe, Norman
N1 - Funding Information:
The project described was supported by Award Number SC3GM084816 from the National Institute of General Medical Sciences.
PY - 2011/7
Y1 - 2011/7
N2 - Nitinol usage for biomedical implant devices has received significant attention due to its high corrosion resistance and biocompatibility. However, surface treatments are known to affect surface charge, surface chemistry, morphology, wettability, and corrosion resistance. In this investigation, the corrosion resistance of a binary and various ternary Nitinol alloys was determined after being subjected to electropolishing, magnetoelectropolishing, and water boiling and passivation. Cyclic polarization in vitro corrosion tests were conducted in Phosphate Buffer Saline (PBS) in compliance with ASTM F 2129-08 before and after surface treatments. The concentrations of dissolved metal ions in the electrolyte were also determined by ICPMS.
AB - Nitinol usage for biomedical implant devices has received significant attention due to its high corrosion resistance and biocompatibility. However, surface treatments are known to affect surface charge, surface chemistry, morphology, wettability, and corrosion resistance. In this investigation, the corrosion resistance of a binary and various ternary Nitinol alloys was determined after being subjected to electropolishing, magnetoelectropolishing, and water boiling and passivation. Cyclic polarization in vitro corrosion tests were conducted in Phosphate Buffer Saline (PBS) in compliance with ASTM F 2129-08 before and after surface treatments. The concentrations of dissolved metal ions in the electrolyte were also determined by ICPMS.
KW - Biomaterials
KW - Corrosion testing
KW - Surface engineering
UR - http://www.scopus.com/inward/record.url?scp=85027919152&partnerID=8YFLogxK
U2 - 10.1007/s11665-011-9892-5
DO - 10.1007/s11665-011-9892-5
M3 - Article
AN - SCOPUS:85027919152
VL - 20
SP - 812
EP - 815
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
SN - 1059-9495
IS - 4-5
ER -