Effect of Sn on corrosion resistance and modulus young of as-cast Ti-Nb-Sn alloys for biocompatible implant

Abstract

Titanium alloy (Ti) has been widely used in several industrial applications because it has good mechanical properties, is unique and has superior corrosion resistance. To have good and unique mechanical properties is very much related to processing. The composition of Ti alloys is greatly influenced by the fabrication method and alloy composition. Titanium alloys that are currently being developed are Ti-6Al-4V alloys, but recent studies show that the release of Al and V ions from Ti-6Al-4V alloys can cause health problems such as peripheral neuropathy, osteomalacia, and Alzheimer’s disease in the future years. The material used for this implant replacement also requires good corrosion resistance and low modulus young, high strength and toughness. This study continues the previous research in which the Ti-30Nb-x-Sn (2.5 and 8 wt.%) alloys have been conducted where it is found that the Ti-30Nb-5Sn alloy achieves optimal results for implant applications. In this research, it will use x-Sn (2.5 and 8 wt.%) alloys with the amount of melting 3 times. The purpose of this study was to determine the effect of the Sn amount of by microstructure using microscope optic, phase content used XRD, modulus of elasticity properties using ultrasonic test, and corrosion testing. Corrosion resistance increases with the addition of Sn shown by lower corrosion current values. for optimal young modulus obtained with the addition of Sn 5%.