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Abstract

This work is studied the effect of adding different percentages of molybdenum by powder metallurgy technique of Ti-5Al-2.5Fe-xMo alloys (x= 1,2 and 3wt%) on corrosion behavior and microstructure in different fluid body (artificial saliva and Hank's solutions). After specimens preparation, an examinations were done by using x-ray diffraction (XRD), scanning electron microscope (SEM), and light optical microscope(LOM). The corrosion properties of theTi-5Al-2.5Fe alloy and the Ti-5Al-2.5Fe alloys with Mo additives were examined by using electrochemical technique sat 37ºC, such as the potentiodynamic method and open circuit potential (OCP). The XRD and microstructure results show that comprises (dominant a and) minimal ß phases at room temperature and the addition of Mo in these percentages does not have effect on the present phases. From the corrosion results can see in 3wt% Mo the alloys have less corrosion rate than the master or other percentage (1 wt% and 2 wt%) in all solutions (artificial saliva and Hank's solutions).