Co-Cr alloy corrosion behaviour after electropolishing and "magnetoelectropolishing" treatments

被引：39

作者：

Hryniewicz, T. ^{[1
]}

Rokicki, R. ^{[2
]}

Rokosz, K. ^{[1
]}

机构：

[1] Koszalin Univ Technol, Div Surface Electrochem, PL-75620 Koszalin, Poland

[2] Electrobright, Macungie, PA USA

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

关键词：

biomaterials; magnetoelectropolishing; corrosion behaviour;

D O I：

10.1016/j.matlet.2008.01.130

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical characteristics of L605 alloy, with various surface finishes obtained after electrolytic polishing, were investigated. This Co-Cr alloy has a clinical history in dental and orthopaedic implants and more recently in cardiovascular stent applications, where its high elastic modulus and radiopacity are desirable properties. Radiopaque materials are advantageous as they allow for better visual navigation in minimal invasive implantation procedures. For applications in the human body, surface corrosion resistance is the most important characteristic to evaluate the biocompatibility. Several studies of the corrosion resistance of Co-Cr alloy biomaterials in simulated human body fluids have been reported. The paper presents recent achievements in increasing corrosion resistance of L605 alloy after the process of electrolytic polishing in the presence of a magnetic field (MEP). (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：3073 / 3076

页数：4

共 13 条

[1] In-stent restenosis in small coronary arteries - Impact of strut thickness [J].

Briguori, C ;

Sarais, C ;

Pagnotta, P ;

Liistro, F ;

Montorfano, M ;

Chieffo, A ;

Sgura, F ;

Corvaja, N ;

Albiero, R ;

Stankovic, G ;

Toutoutzas, C ;

Bonizzoni, E ;

Di Mario, C ;

Colombo, A .

JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY, 2002, 40 (03) :403-409

[2]

Brunski JB, 2004, Classes of materials used in Medicine. Biomaterials Science: an introduction to material in Medicine, V2nd, P137

[3] Magnetoelectropolishing process improves characteristics of finished metal surfaces. Intensity of externally applied magnetic field, plus oxygen control, manipulates rate of dissolution in electropolishing. [J].

Hryniewicz, T ;

Rokosz, K. ;

Rokick, R. .

Metal Finishing, 2006, 104 (12) :26-31,33

[4]

Hryniewicz T., 2007, P 15 ANN INT C COMP, P345

[5]

HRYNIEWICZ T, 2007, SURF COAT TECHN 0807

[6] Usefulness of a cobalt chromium coronary stent alloy [J].

Kereiakes, DJ ;

Cox, DA ;

Hermiller, JB ;

Midei, MG ;

Bachinsky, WB ;

Nukta, ED ;

Leon, MB ;

Fink, S ;

Marin, L ;

Lansky, AJ .

AMERICAN JOURNAL OF CARDIOLOGY, 2003, 92 (04) :463-466

[7] Magnetic field interactions of orthodontic wires during magnetic resonance imaging (MRI) at 1.5 Tesla [Magnetische Kräfte auf kieferorthopädische Drähte während Magnetresonanztomographie bei 1,5 Tesla] [J].

Klocke A. ;

Kemper J. ;

Schulze D. ;

Adam G. ;

Kahl-Nieke B. .

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, 2005, 66 (4) :279-287

[8] Coronary stents: A materials perspective [J].

Mani, Gopinath ;

Feldman, Marc D. ;

Patel, Devang ;

Agrawal, C. Mauli .

BIOMATERIALS, 2007, 28 (09) :1689-1710

[9]

Poncin P, 2005, P MAT PROC MED DEV C, P85

[10] Impact of strut thickness on late luminal loss after coronary artery stent placement [J].

Rittersma, SZH ;

de Winter, RJ ;

Koch, KT ;

Bax, M ;

Schotborgh, CE ;

Mulder, KJ ;

Tijssen, JGP ;

Piek, JJ .

AMERICAN JOURNAL OF CARDIOLOGY, 2004, 93 (04) :477-480

← 1 2 →