Effect of Mn and Zr Addition on Microstructure, Wear and Corrosion Behavior of Ti-6Al-4V Composite Biomaterials Produced by Powder Metallurgy

Abstract

In this study, composite biomaterials were produced by powder metallurgy (P/M) method. Ti-6Al-4V master alloy and different proportions of Mn and Zn have been added to this alloy. Dry wear test and electrochemical corrosion test in Hank fluid (Body fluid) were applied to the produced composite P/M materials. The addition of Mn in the produced materials was effective in improving the wear behavior of the Ti-6Al-4V composite material. In addition, the addition of Zr provided excellent corrosion resistance in Hank's solution. The superior properties of Ti-6Al-4V composite material with its microalloy approach are quite challenging for biomedical applications. The best wear resistance was achieved by adding 2%Mn to Ti-6Al-4V by weight. In addition, it was observed that the phases formed as a result of the addition of 2% Zr act as a barrier during corrosion.

Grafen Esaslı Malzemelerin Topraklama Çubuğu Olarak Kullanım Potansiyelinin Araştırılması

“…Metal matrisli kompozitlerde (MMK) bölgesel korozyon çoğunlukla matris ile takviye elemanı arasında oluşan tane sınırlarında, arayüzeyde veya dislokasyon gibi kimyasal ve fiziksel heterojenliklerin olduğu yerlerde görülmektedir [3][4][5][6][7][8]. Ancak çalışmalar göstermiştir ki ilave edilen takviye elemanının ve oluşan intermetalik fazlarının meydana gelen bu lokal korozyonlara karşı bir duvar görevi görerek korozyona karşı direnci yükselttiği belirlenmiştir [9].…”