Characterization of Co-24,7Cr-5,4W-5 Mo-Si alloy used dental applications produced by additive manufacturing method Diş hekimliǧi uygulamalarinda kullanilan Co-24,7Cr-5,4W-5Mo-Si alaşiminin eklemeli imalat yöntemi ile üretilmesi ve karakterizasyonu


AYGÜL E., YALÇINKAYA S., Şahin Y.

Journal of the Faculty of Engineering and Architecture of Gazi University, cilt.37, sa.2, ss.571-580, 2022 (SCI-Expanded, Scopus, TRDizin) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.17341/gazimmfd.672469
  • Dergi Adı: Journal of the Faculty of Engineering and Architecture of Gazi University
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Art Source, Compendex, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.571-580
  • Anahtar Kelimeler: additive manufacturing, biomaterials, Co-Cr-Mo, microstructure
  • Hakkari Üniversitesi Adresli: Evet

Özet

In this study, additive manufacturing technique was preferred to produce Wolfram (W), Silicon (Si), and Molybdenum (Mo) doped Co-Cr biomedical alloy. In biomedical applications, the alloy consisting of Wolfram (W), Silicon (Si), Molybdenum (Mo), Chromium (Cr), and Cobalt (Co) elements as known for its high wear and good corrosion resistance. Two group of Co-Cr-Mo alloys were produced using the Selective Laser Melting (SLM) method, one of the additive manufacturing manufacturing techniques. One of the produced samples was then subjected to a secondary heat treatment process. The microstructures of the produced alloys were investigated using X-Ray diffractometry (XRD), Energy dispersive X-Ray analysis (EDX) and scanning electron microscope (SEM). Then, the mechanical properties of the alloys were analyzed by electrochemical corrosion test, microhardness test and Archimedes principle density measurement were the final tests. The data obtained as a result of the analyzes showed that a homogeneous microstructured Co-Cr-Mo alloy was produced by the additive manufacturing production technique. In addition, heat treatment caused serious changes on the microstructure and mechanical properties of the material. The most important of these changes was the reduction of the grains forming the alloy, resulting in an increase in the microhardness value of the alloy.