Corrosion Electrochemical Behavior Analysis of 42CrMo and Cr12MoV Alloy Steels in NaCl Solution

MENG Xu - zheng, YU Ning, WEI Yi - ke, TAN Yu, LIANG Ke - xin, ZHANG Sheng - han

doi:10.16577/j.issn.1001-1560.2022.0157

Materials Protection >

2022 , Vol. 55 >Issue 6: 75 - 79

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0157

Corrosion Electrochemical Behavior Analysis of 42CrMo and Cr12MoV Alloy Steels in NaCl Solution

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Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China

Received date: 2020-01-26

Revised date: 2021-02-28

Accepted date: 2021-04-20

Online published: 2024-01-09

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Abstract

Aiming at the corrosion problem of alloy steels in long - term service in environments containing NaCl, 42CrMo and Cr12MoV alloy steels were selected as research materials, and their electrochemical corrosion behaviors in environments with different NaCl concentrations was studied through potentiodynamic polarization curve and electrochemical impedance spectroscopy (EIS). Results showed that the corrosion rates of these two kinds of alloy steels increased with the rising of NaCl concentration. Through the comparative analysis of the electrochemical test results of 42CrMo and Cr12MoV alloy steels, it could be obtained that in NaCl solutions with the same concentration, the corrosion resistance of Cr12MoV was better than that of 42CrMo. The results of this study could provide reference for the application of alloy steels.

Key words： 42CrMo; Cr12MoV; NaCl solution; corrosion; electrochemical evaluation

Cite this article

MENG Xu - zheng, YU Ning, WEI Yi - ke, TAN Yu, LIANG Ke - xin, ZHANG Sheng - han . Corrosion Electrochemical Behavior Analysis of 42CrMo and Cr12MoV Alloy Steels in NaCl Solution[J]. Materials Protection, 2022 , 55(6) : 75 -79 . DOI: 10.16577/j.issn.1001-1560.2022.0157

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