Corrosion behaviours of Ti6Al4V-Mg/Mg-Alloy composites

Esen Z., Ocala E. B., Akkaya A., Gurcay B., Ozcan C., Ozgumus B. A., ...Daha Fazla

CORROSION SCIENCE, cilt.166, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 166
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.corsci.2020.108470
  • Dergi Adı: CORROSION SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Metal matrix composites, Magnesium, Titanium, Interfaces, SEM, Polarization, BODY-FLUID SOLUTION, IN-VIVO CORROSION, WE43 MG ALLOY, MAGNESIUM ALLOYS, BIODEGRADABLE MAGNESIUM, MECHANICAL-PROPERTIES, FLUORIDE SOLUTIONS, POROUS TITANIUM, VITRO, TI
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The effect of coupling of unalloyed Mg and Mg-alloys (AZ91 and WE43) with Ti6Al4V alloy on corrosion and degradation behaviours of produced composites has been investigated in simulated body fluid (SBF) by hydrogen evolution, and surface and electrochemical characterization techniques. Combining of unalloyed Mg with Ti6Al4V intensified galvanic corrosion and catastrophic failure occurred by initiation of microcracks formed by sudden hydrogen gas evolution. In contrast to other composites, Ti6Al4V-AZ91 composites, containing new TiAl3 interface layer formed during composite production, preserved their mechanical integrities due to lowest corrosion and degradation rate of AZ91 alloy.