Corrosion behaviour of electropolished AISI 316L austenitic biomaterial in physiological solution

27th Joint Seminar Development of Materials Science in Research and Education

材料科学;教育

Zatkalíková, V.^1 ; Markoviová, L.^1 ; Škorvanová, M.^2

University of ilina, Faculty of Mechanical Engineering, Department of Material Engineering, Univerzitná 8215/1, ilina

01026, Slovakia^1

Comenius University in Bratislava, Jessenius Faculty of Medicine in Martin, Malá Hora 10701/4A, Martin

036 01, Slovakia^2

关键词: AISI316L stainless steel;    Combined treatment;    Corrosion behaviour;    Corrosion property;    Cyclic potentiodynamic polarization;    Medical instruments;    Passive surfaces;    Physiological solution;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/266/1/012016/pdf
DOI  :  10.1088/1757-899X/266/1/012016

来源: IOP

【 摘 要 】

Due to suitable mechanical properties, satisfactory corrosion resistance and relatively low cost, austenitic stainless steels are important biomaterials for manufacture of implants and various medical instruments and devices. Their corrosion properties and biocompatibility are significantly affected by protective passive surface film quality, which depends on used mechanical and chemical surface treatment. This article deals with corrosion resistance of AISI 316L stainless steel, which is the most widely used Cr-Ni-Mo austenitic biomaterial. Corrosion behaviour of five various surfaces (original, electropolished, three surfaces with combined treatment finished by electropolishing) is evaluated on the bases of cyclic potentiodynamic polarization tests performed in physiological solution at the temperature of 37± 0.5 °C.