Structure related corrosion behavior of DLC films in high Cl− environment-Reference-Cited by-同舟云学术

Structure related corrosion behavior of DLC films in high Cl− environment

Published:2021-08-03 Issue:5 Volume:39 Page:465-476
ISSN:2191-0316
Container-title:Corrosion Reviews
language:en
Short-container-title:

Author:

Zhang Yukun¹,Gao Pen²,Chen Dongxu¹,Zhou YanWen¹

Affiliation:

1. Surface Engineering Institute, University of Science and Technology Liaoning , Anshan , Liaoning 114051 , P. R. China

2. State Key Laboratory of Metal Material for Marine Equipment and Application, Iron & Steel Research Institute of Ansteel Group Corporation , Anshan 114009 , P. R. China

Abstract

Abstract The diamond-like carbon (DLC) films were successfully fabricated on the surface of 13Cr super martensitic stainless steel by plasma enhanced chemical vapour deposition, and the microstructure changed with the variation of pulse voltages of the high pulse power supply. The microstructure of the DLC films was characterized by atomic force microscope, and the corrosion behavior of the films in a high Cl− environment was analyzed by open circuit potential, polarization curve and electrochemical impedance spectroscopy. It is found that the substrate corrosion occurred first for the DLC films with open pores, followed by a substrate surface passivation before the final corrosion failure. The DLC film with closed pores can effectively prevent Cl− from attacking the substrate before the corrosion pits formed at the local defects.

Publisher

Walter de Gruyter GmbH

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/corrrev-2021-0004/pdf

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