İBRAHİM AYDIN, Ahmet PASİNLİ, Hakan ÇETİNEL

$Ti_6Al_4V$ malzeme yüzeyine olusturulan kalsiyum fosfat kaplamanın kırılma tokluğunun incelenmesi

Bu çalısmada Ti6Al4V malzeme yüzeyinde yeni metotla olusturulan kalsiyum fosfat (CaP) kaplamanın Vickers indentasyon yöntemi ile kırılma tokluğunun incelenmesi amaçlanmıstır. Ti6Al4V malzeme yüzeyine NaOH ile aktivasyon islemi uygulanmıs ve CaP kaplanmıstır. Olusturulan CaP kaplamanın, elastise modülü, sertlik değerleri, kaplama kalınlığı ölçülmüs, kaplama yüzeyinin XRD analizi yapılmıs, SEM görüntüleri ve IR Spektrumları alınmıstır. Vickers indentasyon metodu uygulanarak kırılma tokluğu belirlenmistir. Bu çalısma sonucunda NaOH ile aktive edilmis Ti6Al4V üzerinde olusturulan CaP kaplaması için kırılma tokluğu (K1C) değeri 0,39 MPa m1/2 olarak bulunmustur.

Investigation of fracture toughness of calcium phosphate coating treated onto $Ti_6Al_4V$ substrate

In this study, we aimed to investigate the fracture toughness of the calcium phosphate (CaP) coating that was formed with Vickers indentation method, by the new method. The activation process was done with NaOH on the Ti6Al4V material surface. Elasticity module, hardness values and coating thickness of the CaP coating that is formed by activation process was calculated. SEM micrographs, EDS analysis and XRD analysis were gathered of the coating. Fracture toughness was determined by Vickers indentation. At the end of this study, fracture toughness (K1C) value for the CaP coating on Ti6A14V that was activated by NaOH was found to be 0.39 MPa m1/2.

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