Dependence on Surface Roughness of Electrical and Electrochemical Properties of Non-Porous and Porous Titanium Sheets

Minsu Park; Taeho Lee; Manho Park; Si Young Chang

doi:10.3740/MRSK.2026.36.5.161

All Issue

2026 Vol.36, Issue 5 Next Page

Research Paper

Dependence on Surface Roughness of Electrical and Electrochemical Properties of Non-Porous and Porous Titanium Sheets

27 May 2026. pp. 161-166

PDF XML

Abstract

Titanium sheets are used in various electrochemical applications because of their excellent corrosion resistance and electrical stability. In this study, the effects of changes in surface roughness on sheet resistance and corrosion behavior of non-porous and porous titanium sheets were compared. In the as-received condition, the surface roughness (R_a) values of the non-porous and porous sheets were 0.06 and 2.41 µm, respectively, and the corresponding sheet resistance values were 4.82 and 10.62 mΩ/□. Potentiodynamic polarization tests performed in 0.5 M H₂SO₄ showed that the corrosion potentials (E_corr) of the non-porous and porous sheets were -0.301 and -0.362 V, respectively, while the corrosion current densities (I_corr) were 0.117 and 0.812 µA･cm^-2, respectively. The porous sheet showed a higher I_corr than the non-porous sheet, indicating relatively lower corrosion resistance. As surface roughness was increased by polishing with SiC sandpapers (G100-G1200), the sheet resistance increased in both sheets. In addition, the corrosion current density increased. EIS analysis also showed a decreasing tendency in polarization resistance (R_p).

Keywords

titanium

surface roughness

sheet resistance

electrochemical corrosion

polarization

References

M. Carmo, D. L. Fritz, J. Mergel and D. Stolten, Int. J. Hydrogen Energy, 38, 4901 (2013).

10.1016/j.ijhydene.2013.01.151

W. Giurlani, L. Sergi, E. Crestini, N. Calisi, F. Poli, F. Soavi and M. Innocenti, J. Solid State Electrochem., 26, 85 (2022).

10.1007/s10008-020-04853-2

J. Pan, D. Thierry and C. Leygraf, Electrochim. Acta, 41, 1143 (1996).

10.1016/0013-4686(95)00465-3

R. Goodall, L. Weber and A. Mortensen, J. Appl. Phys., 100, 044912 (2006).

10.1063/1.2335672

B. Q. Li and X. Lu, Transp. Porous Med., 87, 179 (2011).

10.1007/s11242-010-9674-9

J. Banhart, Prog. Mater. Sci., 46, 559 (2001).

J. K. Lee, G. Y. Lau, M. Sabharwal, A. Z. Weber, X. Peng and M. C. Tucker, J. Power Sources, 559, 232606 (2023).

10.1016/j.jpowsour.2022.232606

F. J. Hackemüller, E. Borgardt, O. Panchenko, M. Müller and M. Bram, Adv. Eng. Mater., 21, 1801201 (2019).

10.1002/adem.201801201

Z. S. Rak and J. Walter, J. Mater. Process. Technol., 175, 358 (2006).

10.1016/j.jmatprotec.2005.04.066

T. L. Doan, H. E. Lee, S. S. H. Shah, M. Kim, C.-H. Kim, H.-S. Cho and T. Kim, Int. J. Energy Res., 45, 14207 (2021).

10.1002/er.6739

B. Sivakumar, L. C. Pathak and R. Singh, Appl. Surf. Sci., 401, 385 (2017).

10.1016/j.apsusc.2017.01.033

K. Takahashi, T. Kagawa, K. Tanaka, H. Kihira and K. Ushioda, ISIJ Int., 59, 1621 (2019).

10.2355/isijinternational.ISIJINT-2018-787

D. Godoy, Ph. D. Thesis, p. 1-200, Université Grenoble Alpes, France (2019).

A. F. Mayadas and M. Shatzkes, Phys. Rev. B, 1, 1382 (1970).

10.1103/PhysRevB.1.1382

E. Broitman, P. Alonso and R. Zimmerman, Thin Solid Films, 277, 192 (1996).

10.1016/0040-6090(95)08018-X

A. Ch. Lazanas and M. I. Prodromidis, ACS Meas. Sci. Au, 3, 162 (2023).

10.1021/acsmeasuresciau.2c0007037360038PMC10288619

K. E. Wiedemann, R. N. Shenoy and J. Unnam, Metall. Trans. A, 18, 1503 (1987).

10.1007/BF02646662

Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 36
No :5
Pages :161-166
Received Date : 2026-03-12
Revised Date : 2026-04-15
Accepted Date : 2026-04-16
DOI :https://doi.org/10.3740/MRSK.2026.36.5.161

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

All Issue