Evaluating the effects of hydroxyapatite coating on the corrosion behavior of severely deformed 316Ti SS for surgical implants.
The present work investigates the effects of severe plastic deformation by cold rolling on the microstructure, the mechanical properties and the corrosion behavior of austenitic stainless steel (SS) 316Ti. Hydroxyapatite coating (HA) was applied on the deformed material to improve their corrosion resistance. The martensitic transformation due to cold rolling was recorded by X-ray diffraction spectra. The effects of cold rolling on the corrosion behavior were studied using potentiodynamic polarization. The electrochemical tests were carried out in Ringer's solution at 37±1 °C. Cold rolling markedly enhanced the mechanical properties while the electrochemical tests referred to a lower corrosion resistance of the deformed material. The best combination of both high strength and good corrosion resistance was achieved after applying hydroxyapatite coating.
Institute of Materials Science and Engineering, Clausthal University of Engineering, Agicolastr.6, 38678 Clausthal-Zellerfeld, Germany; Faculty of Engineering, Zagazig University, 44519 Zagazig, Egypt. Electronic address: mansour.mhaede@yahoo.com.
Mansour
M
Mhaede
Institute of Materials Science and Engineering, Clausthal University of Engineering, Agicolastr.6, 38678 Clausthal-Zellerfeld, Germany.
Aymen
A
Ahmed
Institute of Materials Science and Engineering, Clausthal University of Engineering, Agicolastr.6, 38678 Clausthal-Zellerfeld, Germany.
Manfred
M
Wollmann
Institute of Materials Science and Engineering, Clausthal University of Engineering, Agicolastr.6, 38678 Clausthal-Zellerfeld, Germany.
Lothar
L
Wagner
D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D003343:Corrosion; D017886:Durapatite / Q000737:chemistry*; D055664:Electrochemical Techniques; D006244:Hardness; D019736:Prostheses and Implants; D013052:Spectrometry, X-Ray Emission; D013193:Stainless Steel / Q000737:chemistry*; D014961:X-Ray Diffraction
D020099:Coated Materials, Biocompatible; D013193:Stainless Steel; D017886:Durapatite
316Ti SS; Cold rolling; Corrosion; HA coating