Titanium and its alloys have been one of the leading materials used for medical implants not only because of their superior specific mechanical properties but also for their excellent corrosion resistance and biocompatibility. By using boron as an alloying element in titanium the strength of the resultant alloys is higher than that of the base alloy. It has been shown that even small additions of boron (in the 0.1 – 1.2 wt% range) decrease the matrix grain size which in turn increases the yield and tensile strengths when compared to the base alloy. Understanding the effect of this alloying addition (boron) on corrosion resistance is equally importantfor potential biomedical applications. The corrosion behavior of these unique alloys (0 - 1 wt% B range) was characterized byelectrochemical impedance spectroscopy (EIS) in various physiologically-relevant solutions e.g. Hanks' Balanced Salt Solution (HBSS) fordifferent exposure times. The results will be related to the nature of the oxide film that forms on the different alloy surfaces and in different solutions.