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Corrosion Behavior of Surface-Treated Metallic Implant Materials

Corrosion of taper connections in total hip arthroplasty remains of concern, as particles and ions generated by corrosive processes can cause clinical problems such as periprosthetic osteolysis or adverse reaction to metallic debris. Mechanical surface treatments that introduce compressive residual...

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Autores principales: Bormann, Therese, Mai, Phuong Thao, Gibmeier, Jens, Sonntag, Robert, Müller, Ulrike, Kretzer, J. Philippe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7254368/
https://www.ncbi.nlm.nih.gov/pubmed/32344822
http://dx.doi.org/10.3390/ma13092011
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author Bormann, Therese
Mai, Phuong Thao
Gibmeier, Jens
Sonntag, Robert
Müller, Ulrike
Kretzer, J. Philippe
author_facet Bormann, Therese
Mai, Phuong Thao
Gibmeier, Jens
Sonntag, Robert
Müller, Ulrike
Kretzer, J. Philippe
author_sort Bormann, Therese
collection PubMed
description Corrosion of taper connections in total hip arthroplasty remains of concern, as particles and ions generated by corrosive processes can cause clinical problems such as periprosthetic osteolysis or adverse reaction to metallic debris. Mechanical surface treatments that introduce compressive residual stresses (RSs) in metallic materials can lead to a better performance in terms of fretting and fatigue and may lower the susceptibility to corrosion. The study investigates the impact of mechanical surface treatments on the corrosion behavior of metallic biomaterials. Compressive RSs were introduced by deep rolling and microblasting in Ti6Al4V and CoCrMo samples. Polished samples served as reference. Corrosion behavior was characterized by repeated anodic polarization. Residual stresses of up to about −900 MPa were introduced by deep rolling with a reach in depth of approximately 500 µm. Microblasting led to compressive RSs up to approximately −800 and −600 MPa for Ti6Al4V and CoCrMo, respectively, in the immediate vicinity of the surface. For Ti6Al4V, microblasting resulted in decreased corrosion resistance with lower breakdown potentials and/or increased passive current densities in comparison to the polished and deep-rolled samples. The corrosion behavior of CoCrMo on the other hand was not affected by the mechanical surface treatments.
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spelling pubmed-72543682020-06-10 Corrosion Behavior of Surface-Treated Metallic Implant Materials Bormann, Therese Mai, Phuong Thao Gibmeier, Jens Sonntag, Robert Müller, Ulrike Kretzer, J. Philippe Materials (Basel) Article Corrosion of taper connections in total hip arthroplasty remains of concern, as particles and ions generated by corrosive processes can cause clinical problems such as periprosthetic osteolysis or adverse reaction to metallic debris. Mechanical surface treatments that introduce compressive residual stresses (RSs) in metallic materials can lead to a better performance in terms of fretting and fatigue and may lower the susceptibility to corrosion. The study investigates the impact of mechanical surface treatments on the corrosion behavior of metallic biomaterials. Compressive RSs were introduced by deep rolling and microblasting in Ti6Al4V and CoCrMo samples. Polished samples served as reference. Corrosion behavior was characterized by repeated anodic polarization. Residual stresses of up to about −900 MPa were introduced by deep rolling with a reach in depth of approximately 500 µm. Microblasting led to compressive RSs up to approximately −800 and −600 MPa for Ti6Al4V and CoCrMo, respectively, in the immediate vicinity of the surface. For Ti6Al4V, microblasting resulted in decreased corrosion resistance with lower breakdown potentials and/or increased passive current densities in comparison to the polished and deep-rolled samples. The corrosion behavior of CoCrMo on the other hand was not affected by the mechanical surface treatments. MDPI 2020-04-25 /pmc/articles/PMC7254368/ /pubmed/32344822 http://dx.doi.org/10.3390/ma13092011 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bormann, Therese
Mai, Phuong Thao
Gibmeier, Jens
Sonntag, Robert
Müller, Ulrike
Kretzer, J. Philippe
Corrosion Behavior of Surface-Treated Metallic Implant Materials
title Corrosion Behavior of Surface-Treated Metallic Implant Materials
title_full Corrosion Behavior of Surface-Treated Metallic Implant Materials
title_fullStr Corrosion Behavior of Surface-Treated Metallic Implant Materials
title_full_unstemmed Corrosion Behavior of Surface-Treated Metallic Implant Materials
title_short Corrosion Behavior of Surface-Treated Metallic Implant Materials
title_sort corrosion behavior of surface-treated metallic implant materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7254368/
https://www.ncbi.nlm.nih.gov/pubmed/32344822
http://dx.doi.org/10.3390/ma13092011
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