ArticleJournal of the mechanical behavior of biomedical materials2022
Hip implant modular junction: The role of CoCrMo alloy microstructure on fretting-corrosion.
Article in Journal of the mechanical behavior of biomedical materials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- The Influence of Mechanical and Microstructural Characteristics on the Durability of a Femoral Implant Made of Different Alloys.Journal of functional biomaterials · 2026Article
- Effect of Nano-TiOMaterials (Basel, Switzerland) · 2026Article
- Association between metal implants and urinary chromium levels in US adults: a cross-sectional study from NHANES.Scientific reports · 2024Article
- [Tribology in arthroplasty : Friction and wear, a key to a long lifetime].Orthopadie (Heidelberg, Germany) · 2024Review
- Investigation of cell-accelerated corrosion (CAC) on the CoCrMo alloy with segregation banding: Hip implant applications.Journal of the mechanical behavior of biomedical materials · 2024Article
- Association between metallic implants and stroke in US adults from NHANES 2015-2023 a cross-sectional study.Frontiers in aging neuroscience · 2024Article
- 3D printing metal implants in orthopedic surgery: Methods, applications and future prospects.Journal of orthopaedic translation · 2023Review
- In Vitro Tribocorrosion Evaluation of Carbide-derived Carbon (CDC) for Hip Implants.Advances in applied ceramics · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Cobalt-chromium-molybdenum (CoCrMo) alloy is one of the most used metals in total hip replacement (THR) due to the alloy's superior corrosion qualities and biocompatibility. Over time these prostheses may undergo wear and corrosion processes in a synergistic process known as tribocorrosion. Implant retrieval studies have shown that damage patterns on THR modular junction surfaces indicating specifically in vivo fretting-corrosion to take place. To date, there have been no studies on the fretting-corrosion behaviors of CoCrMo alloy under the consideration of specific microstructural features. A custom-built flat-on-flat fretting-corrosion setup was utilized to test the synergistic tribocorrosion behavior of fretting-corrosion. The difference in microstructure was generated through the cutting orientations of the transverse and the longitudinal direction of the bar stock material, where the longitudinal cut exhibits a characteristic banded microstructure (banded group) and the transverse cut a homogenous microstructure (unbanded group). A three-electrode system was employed to monitor the induced currents. Two different types of electrolytes were used in the current study: 1. Bovine calf serum (BCS-30 g/L protein) (normal conditions) 2. BCS with Lipopolysaccharide (LPS, 0.15 μg/ml) (simulated infectious conditions). In the free potential mode, banded samples showed an increased potential compared to the unbanded samples. In potentiostatic conditions, the banded group also exhibited a higher induced current in both electrolyte environments, indicating more corrosion loss. Both Nyquist and Bode plots showed both orientations of metal becoming more corrosion resistant post-fretting when compared to pre-fretting data. The longitudinal group at OCP demonstrated a unique shape of the fretting-loop, which might be related to tribochemical reactions. Based on the mechanical, electrochemical, and surface characterization data, the transverse group (unbanded) microstructures demonstrates a higher resistance to fretting-corrosion damage.
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