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. Author manuscript; available in PMC: 2023 Sep 21.
Published in final edited form as: J Bio Tribocorros. 2022 Apr 7;8(2):63. doi: 10.1007/s40735-022-00657-1

Table 1.

Summary of electrochemical data

CM-Ti6Al4V
 SLM-EDM
 SLM-printed
 Saline inter-surface comparisons
 BCS inter-surface comparisons
Saline BCS Saline BCS Saline BCS CM-Ti6Al4V vs. SLM-EDM CM-Ti6Al4V vs. SLM-printed SLM-EDM vs. SLM-printed CM-Ti6Al4V vs. SLM-EDM CM-Ti6Al4V vs. SLM-printed SLM-EDM vs. SLM-Printed
OCPa
  OCP (V) − 0.376 ± 0.016 − 0.434 ± 0.063 − 2.82 ± 0.023 − 0.459 ± 0.043 0.043 ± 0.016 − 0.108 ± 0.021
  Inter-solution comparisons p = 0.202 p = 0.003 p < 0.001
  Inter-surface comparisons p = 0.002 p < 0.001 p < 0.001 p = 0.786 p < 0.001 p < 0.001
EISb
  Resistance (MΩ) 11.037 ± 1.108 23.497 ± 15.123 19.980 ± 8.697 20.163 ± 3.823 4.208 ± 2.580 17.747 ± 2.562
  Inter-solution comparison p = 0.228 p = 0.975 p = 0.003
  Inter-surface comparisons p = 0.175 p = 0.322 p = 0.025 p = 0.751 p = 0.751 p = 0.751
  Capacitance (μF) 15.793 ± 1.430 12.848 ± 5.716 15.460 ± 1.169 16.840 ± 1.107 20.193 ± 2.205 21.780 ± 1.479
  Inter-solution comparison p = 0.435 p = 0.211 0.359
  Inter-surface comparisons p = 0.966 p = 0.040 p = 0.030 p = 0.053 p = 0.053 p = 0.053
Cyclic polarizationc
  Ecorr (V) − 0.602 ± 0.039 − 0.706 ± 0.016 − 0.555 ± 0.052 − 0.667 ± 0.054 − 0.209 ± 0.053 − 0.445 ± 0.129
  Inter-solution comparison p = 0.013 p = 0.100 p = 0.043
  Inter-surface comparisons p = 0.736 p = 0.045 p = 0.229 p = 0.832 p = 0.018 p = 0.036
0.022 ± 0.009 0.019 ± 0.007 0.021 ± 0.006 0.024 ± 0.007 0.056 ± 0.014 0.038 ± 0.013
p = 1.000 p = 0.374 p = 0.150
p = 0.071 p = 0.071 p = 0.071 p = 0.256 p = 0.256 p = 0.256
Epass (V) 0.493 ± 0.046 0.377 ± 0.257 0.988 ± 0.046 0.697 ± 0.036 0.817 ± 0.033 0.664 ± 0.004
Inter-solution comparison p = 0.487 p < 0.001 p < 0.001
Inter-surface comparisons p < 0.001 p < 0.001 p = 0.006 p = 0.382 p = 0.382 p = 0.382
Ipass (μA/cm2) 6.909 ± 1.100 5.376 ± 2.009 11.008 ± 0.984 9.657 ± 1.358 8.878 ± 0.913 8.515 ± 0.992
Inter-solution comparison p = 0.312 p = 0.400 p = 0.668
Inter-surface comparisons p = 0.006 p = 0.116 p = 0.090 p = 0.031 p = 0.097 p = 0.647
a

Displays data from open circuit potential (OCP) assay including raw data values and p-values for both inter-solution and inter-surface comparisons

b

Displays data from electrical impedance spectroscopy (EIS) assay including raw data values and p-values for both inter-solution and inter-surface comparisons

c

Displays data from cyclic polarization assay including raw data values and p-values for both inter-surface and inter-solution comparisons