Corrosion Resistance of AISI 316L Stainless Steel Biomaterial after Plasma Immersion Ion Implantation of Nitrogen

Materials

Milan Štrbák¹  Lenka Kuchariková¹  Viera Zatkalíková¹  Lenka Markovičová¹  Milan Uhríčik¹  Juraj Halanda²  Dušan Vaňa² 

[1] Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia;Faculty of Materials Science and Technology, Advanced Technologies Research Institute, Slovak University of Technology in Bratislava, Jána Bottu Č. 2781/25, 917 24 Trnava, Slovakia;

关键词: plasma immersion ion implantation of nitrogen;    austenitic stainless steel;    corrosion resistance;    potentiodynamic polarization;    electrochemical impedance spectroscopy;   

DOI  :  10.3390/ma14226790

来源: DOAJ

【 摘 要 】

Plasma immersion ion implantation (PIII) of nitrogen is low-temperature surface technology which enables the improvement of tribological properties without a deterioration of the corrosion behavior of austenitic stainless steels. In this paper the corrosion properties of PIII-treated AISI 316L stainless steel surfaces are evaluated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PP) and exposure immersion tests (all carried out in the 0.9 wt. % NaCl solution at 37 ± 0.5 °C) and compared with a non-treated surface. Results of the three performed independent corrosion tests consistently confirmed a significant increase in the corrosion resistance after two doses of PIII nitriding.

【 授权许可】

Unknown