Evaluation of Erosion-Corrosion Performance of Commercial Biomaterials: The Role of 45S5 Bioglass Particles
Journal of Materials Engineering and Performance, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s11665-026-14428-3
- Dergi Adı: Journal of Materials Engineering and Performance
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Chemical Abstracts Core, Compendex, INSPEC, Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: bioglass particles, biomaterials, erosion corrosion
- Atatürk Üniversitesi Adresli: Evet
Özet
In invasive procedures, biomaterials in contact with bone or soft tissue are subjected to severe erosive corrosion under the influence of hydrodynamic conditions. Therefore, it is insufficient to examine only the electrochemical corrosion performance of metallic alloys that play a role in metabolic activities. This study aims to comparatively evaluate the erosion-corrosion characteristics of eight commercially used biomaterials (Cp-Mg, AZ31, CoCrMo, NiTi, Cp-Ti, Ti45Nb, Ti6Al4V, and 316L). To simultaneously investigate mechanical and chemical interactions, biocompatible 45S5 Bioglass particles were added to simulated body fluid (SBF) at a rate of 1% by weight and impacted onto the sample surfaces; electrochemical tests such as Open Circuit Potential (OCP), Electrochemical Impedance Spectroscopy (EIS), and Cyclic Potentiodynamic Polarization (CPP) were applied. The results showed that the overall erosion-corrosion performance of Cp-Mg, AZ31, and CoCrMo alloys lagged far behind that of 316L stainless steel and titanium alloys. According to the specific findings, Ti6Al4V exhibited the lowest corrosion rate with 0.23 mV, while NiTi showed the most noble behavior against erosion-corrosion with a value of − 296 mV. Surprisingly, it was found that the erosion-corrosion damage in the CoCrMo alloy, frequently preferred in implants, was much higher compared to Ti-based alloys, forming local pitting on the surface, referred to as "corrosion blooms." The Ti45Nb alloy from the titanium group, on the other hand, exhibited the lowest surface roughness in both test conditions. On the other hand, although magnesium alloys (Cp-Mg and AZ31) are the least resistant to general corrosion, the dense MgO layer that rapidly forms on their surfaces due to corrosion suppressed the effect of mechanical erosion and resulted in lower surface roughness values than expected. Consequently, the morphological and electrochemical findings proved that untreated Ti-based alloys offer the most stable performance against erosion-corrosion attacks thanks to their strong oxide barriers and are very strong alternatives to each other for permanent implantations.