STUDYING THE ELECTROCHEMICAL BEHAVIORS OF ANODIZED METALLIC IMPLANTS FOR IMPROVED CORROSION RESISTANCE

A study about long-term corrosion behavior of anodized and non-anodized Ti6Al4V and MgAZ31B biomaterials was conducted under controlled conditions. By applying 20V DC potential, MgAZ31B alloys was anodized in phosphoric acid and potassium hydroxide while Ti6Al4V alloys was anodized in phosphoric aci...

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Published in:Istanbul Ticaret Universitesi Fen Bilimleri Dergisi 2022-06, Vol.21 (41), p.117-135
Main Authors: MURAD, Md. Shafinur, USTA, Aybala, ASMATULU, Ramazan, CEYLAN, Muhammet
Format: Article
Language:English
Subjects:
Acids
Alloys
Anodizing
Biocompatibility
Biomaterials
Biomedical materials
Bone surgery
Controlled conditions
Corrosion
Corrosion rate
Corrosion resistance
Corrosion tests
Deionization
Electrochemical analysis
Electrochemistry
Electrolytes
Magnesium
Magnesium base alloys
Metal fatigue
Mühendislik
Oxalic acid
Phosphoric acid
Potassium
Potassium hydroxide
Potassium hydroxides
Sodium chloride
Surgical implants
Titanium base alloys
Transplants & implants
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Summary:A study about long-term corrosion behavior of anodized and non-anodized Ti6Al4V and MgAZ31B biomaterials was conducted under controlled conditions. By applying 20V DC potential, MgAZ31B alloys was anodized in phosphoric acid and potassium hydroxide while Ti6Al4V alloys was anodized in phosphoric acid and oxalic acid. Long-term experiments were carried out by immersing them in deionized (DI) water, 3% NaCl and phosphate-buffered saline (PBS) solutions. The corrosion rate and pattern were measured by electrochemical analysis. Also, as a result of anodization, the natural oxide layer was observed on the material surface, thus the corrosion rate is reduced and the life of the biomaterial has been improved. Eloksallı ve anodize edilmemiş Ti6Al4V ve Mg AZ31B biyomalzemelerinin korozyon davranışına ilişkin uzun vadeli bir araştırma, kontrollü koşullar altında gerçekleştirilmiştir. Ti6Al4V fosforik asit ve oksalik asit içinde anodize edilirken, Mg AZ31B fosforik asit ve potasyum hidroksit içinde 20V DC potansiyel uygulanarak anodize edilmiştir. %3 NaCl, fosfat tamponlu salin (PBS) ve deiyonize (DI) su çözeltilerine daldırılarak uzun süreli deneyler yapıldı. Korozyon hızı ve deseni elektrokimyasal analiz ile ölçülmüş ve anotlamanın malzeme yüzeyindeki doğal oksit tabakasını arttırdığı, korozyon hızını azalttığı ve biyomalzemenin ömrünü uzattığı gözlemlenmiştir.
ISSN:1305-7820
2587-165X
DOI:10.55071/ticaretfbd.1109393