English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/136906
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

In vitro corrosion behaviour of surgical 316LVM stainless steel modified by Si+ ion implantation - An electrochemical impedance spectroscopy study

AutorGalván Sierra, Juan Carlos; Larrea, María Teresa; Braceras, I.; Multigner, M.; González-Carrasco, José Luis
Palabras claveElectrochemical impedance spectroscopy
Ion release
Corrosion behaviour
316LVM stainless steel
Ion implantation
Silicon
Fecha de publicación2016
EditorElsevier
CitaciónJournal of Alloys and Compounds 676: 414-427 (2016)
ResumenThis work deals with the surface modification of 316LVM stainless steel by Si ion implantation and the in vitro study of its effect on the short-term corrosion behaviour and ion release. In order to achieve a high Si content close to the surface, the experimental set up was designed with different implantation doses, acceleration voltages and angles of incidence. Corrosion tests were carried out by Electrochemical Impedance Spectroscopy (EIS). A special feature of this paper is the evaluation of the EIS data obtained through a critical analysis of the existing equivalent electrical circuits, in order to establish adequate parameters and scientific criteria to propose a classification of the corrosion response of the investigated surfaces. It has been demonstrated that doses of Si ion implantation equal to 2.5 × 10 ion/cm and an acceleration voltages of 50 keV enhanced the corrosion protection. In contrast, higher ion-implantation dose (1 × 10 ion/cm) and acceleration voltage (80 keV) produced worse results, probably due to the development of strain induced α'-martensite. The quantity of relevant ions (Cr, Fe, Mn, Mo, Ni and Si) released to the medium was determined by an optimized Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) method. It has been shown that a better corrosion resistance is accompanied by a reduction in the amount of ions released.
URIhttp://hdl.handle.net/10261/136906
DOI10.1016/j.jallcom.2016.03.162
Identificadoresdoi: 10.1016/j.jallcom.2016.03.162
issn: 0925-8388
Aparece en las colecciones: (CENIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.