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Corrosion and tribocorrosion behaviour of beta-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications
Corrosion and tribocorrosion behaviour of modified Ti surfaces through thermochemical treatments has been studied. Electrochemical Impedance Spectroscopy (EIS) and reciprocating sliding tests using a ball-on-plate tribometer under 1 N load and alumina as counter-material were used to evaluate the influence of Nb and Mo on titanium corrosion and tribocorrosion properties. Ti-Nb and Ti-Mo surfaces exhibited better anticorrosive properties than CP-titanium. Under tribological action the modified Ti surfaces showed similar coefficient of friction and lower tendency to corrosion compared to CP-Ti. Furthermore, Nb diffusion increased the repassivation rate with respect to Ti and Ti-Mo surfaces due to its stable passive film. ; The authors would like to thank the funding provided for this research by the Regional Government of Madrid (program MULTIMATCHALLENGE- CM, ref. S2013/MIT-2862), the Spanish Government through the Ramón y Cajal contract RYC-2014-15014 and by the Institute of Alvaro Alonso Barba (IAAB) of the University Carlos III of Madrid for the research stay of two months in CMEMS-UMINHO (University of Minho). This study was partially supported by FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) with the reference project POCI-01-0145- FEDER-006941.
Corrosion and tribocorrosion behaviour of beta-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications
Corrosion and tribocorrosion behaviour of modified Ti surfaces through thermochemical treatments has been studied. Electrochemical Impedance Spectroscopy (EIS) and reciprocating sliding tests using a ball-on-plate tribometer under 1 N load and alumina as counter-material were used to evaluate the influence of Nb and Mo on titanium corrosion and tribocorrosion properties. Ti-Nb and Ti-Mo surfaces exhibited better anticorrosive properties than CP-titanium. Under tribological action the modified Ti surfaces showed similar coefficient of friction and lower tendency to corrosion compared to CP-Ti. Furthermore, Nb diffusion increased the repassivation rate with respect to Ti and Ti-Mo surfaces due to its stable passive film. ; The authors would like to thank the funding provided for this research by the Regional Government of Madrid (program MULTIMATCHALLENGE- CM, ref. S2013/MIT-2862), the Spanish Government through the Ramón y Cajal contract RYC-2014-15014 and by the Institute of Alvaro Alonso Barba (IAAB) of the University Carlos III of Madrid for the research stay of two months in CMEMS-UMINHO (University of Minho). This study was partially supported by FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) with the reference project POCI-01-0145- FEDER-006941.
Corrosion and tribocorrosion behaviour of beta-type Ti-Nb and Ti-Mo surfaces designed by diffusion treatments for biomedical applications
Ureña Alcázar, Julia María (author) / Tsipas, Sophia Alexandra (author) / Pinto, A.M. (author) / Toptan, F. (author) / Gordo Odériz, Elena (author) / Jiménez Morales, Antonia (author)
2018-08-01
AR/0000021896
Article (Journal)
Electronic Resource
English
DDC:
690
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