Nickel - titanium alloy has special practical value in medicine for its great characteristics of shape memory and super- elasticity. As nickel released from nickel- titanium alloy is cytotoxic, increasing nickel- titanium alloy′s corrosion resistance is becoming important. In this review, it was focused on potentiodynamic test that was the study method of nickel- titanium alloy′s corrosion resistance, electrolyte factor in nickel- titanium alloy′s corrosion, nickel- titanium alloy′s surface configuration on the influence of nickel- titanium alloy′s corrosion resistance.
