表面粗糙度以及NaOH溶液的浓度和温度对锆基非晶合金腐蚀行为的影响

王涛涛, 薛荣洁, 马晓伟, 万皓锋, 王冬朋, 刘珍光

Effect of Surface Roughness, Concentration and Temperature of NaOH Solution on Corrosion Behavior of a Zr-based Metallic Glass

WANG Taotao, XUE Rongjie, MA Xiaowei, WAN Haofeng, WANG Dongpeng, LIU Zhenguang

表1 图2中动电位极化曲线以及图3中电化学阻抗谱拟合参数

Table 1 Fitting electrochemical parameters of potentiodynamic polarization curves in Fig.2 and EIS in Fig.3

Experiment conditions Icorr / A·cm-2 Ecorr / mV Rs / kΩ·cm2 Rct / kΩ·cm2 CPE / μF·cm2 α 1: 0.01 mol/L-25 ℃ 2.6 × 10-9 -374 0.402 5322.70 4.0228 0.91285 2: 0.01 mol/L-35 ℃ 3.6 × 10-9 -333 0.788 5154.70 3.9363 0.90021 3: 0.1 mol/L-25 ℃ 9.3 × 10-9 -307 0.040 2132.70 6.6847 0.90352 4: 0.1 mol/L-35 ℃ 1.13 × 10-8 -146 0.033 517.72 7.1776 0.89177 5: IC 0.01 mol/L-25 ℃ 6.2 × 10-9 -371 0.220 365.54 9.6645 0.90692 6: IC 0.01 mol/L-35 ℃ 8.1 × 10-9 -125 0.170 211.80 11.013 0.91269 7: IC 0.1 mol/L-25 ℃ 8.35 × 10-8 -223 0.027 201.18 10.54 0.93691 8: IC 0.1 mol/L-35 ℃ 9.12 × 10-8 -230 0.031 142.47 6.8036 0.93684 9: 0.01 mol/L-180# 3.16 × 10-7 -602 0.263 417.15 7.0038 0.87587 10: 0.01 mol/L-400# 2.76 × 10-7 -471 0.008 454.49 6.1613 0.94270 11: 0.01 mol/L-1200# 1.54 × 10-7 -430 0.272 494.22 8.5845 0.89133 12: 0.01 mol/L-3000# 5.93 × 10-8 -271 0.060 525.49 4.1602 0.93659 13: 0.01 mol/L-5000# 3.29 × 10-8 -473 0.060 647.69 5.1829 0.86688 14: 0.1 mol/L-180# 4.05 × 10-7 -463 0.054 222.77 9.1876 0.91008 15: 0.1 mol/L-400# 3.00 × 10-7 -430 0.484 256.69 5.8558 0.93849 16: 0.1 mol/L-1200# 2.05 × 10-7 -340 0.051 291.74 5.0511 0.92293 17: 0.1 mol/L-3000# 1.27 × 10-7 -409 0.008 358.46 6.1316 0.90838 18: 0.1 mol/L-5000# 4.43 × 10-8 -604 0.016 390.80 6.7074 0.94493