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Tribocorrosion and the surface repassivation behavior of Monel 400 alloy in artificial seawater

Fuliang Ma (State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, China)
Zhixiang Zeng (Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, Ningbo, China)
Yimin Gao (State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 10 August 2018

Issue publication date: 22 August 2018

178

Abstract

Purpose

This paper aims to study the tribocorrosion and the surface repassivation behaviors of Monel 400 alloy in artificial seawater.

Design/methodology/approach

In this study, the tribocorrosion behavior of Monel 400 alloy was studied under different applied loads in artificial seawater by using a pin-on-disk tribometer equipped with an electrochemical workstation. The applied loads were selected ranging from 50 to 200 N. The surface repassivation behavior of Monel 400 alloy was studied by X-ray photoelectron spectroscopy.

Findings

It was demonstrated that mass loss was determined by the combined effect of mechanical wear and chemical corrosion. The surface repassivation mechanism of the alloy is that layer corrosion product film formed on the surface of Monel 400 alloy, which can protect metal matrix from future corrosion.

Originality/value

This research adds original content in revealing the tribocorrosion and surface repassivation behaviors of Monel 400 alloy under different loads, which offer a theoretical basis for the application under the corrosion and wear environment of Monel 400.

Keywords

Acknowledgements

This work was supported by the National Key R&D Program of China (Grant No.2016YFB0300604), the National Basic Research Program of China (973 Program, Grant No.2014CB643302).

Citation

Ma, F., Zeng, Z. and Gao, Y. (2018), "Tribocorrosion and the surface repassivation behavior of Monel 400 alloy in artificial seawater", Industrial Lubrication and Tribology, Vol. 70 No. 7, pp. 1331-1340. https://doi.org/10.1108/ILT-09-2017-0266

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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