Cu对Ni-Ti合金抗支架内再狭窄与耐蚀性能的影响

许林杰, 刘徽, 任玲, 杨柯

Effect of Cu on In-Stent Restenosis and Corrosion Resistance of Ni-Ti Alloy

XU Linjie, LIU Hui, REN Ling, YANG Ke

表2 从动电位极化曲线与EIS图中获得的电化学参数

Table 2 Electrochemical parameters obtained from polarization curves of driven potential and EIS diagram

Alloy Ecorr / mV icorr / (nA·cm-2) Epit / mV Rs / (Ω·cm2) Rc1 / (104 Ω·cm2) Qc1 / (μΩ-1·s n ·cm-2) Ni-Ti -399 ± 62 99.7 ± 13.4 828 ± 30 13.73 ± 1.64 6.41 ± 1.20 52.3 ± 1.5 Ni-Ti-Cu -283 ± 52 59.5 ± 16.3 862 ± 25 11.79 ± 1.22 67.32 ± 3.42 51.5 ± 1.2