Open AccessCorrosion failure analysis and microstructure characterization of emulsion on hydraulic cylinder base
Author(s) -
Zhiwei Zhang,
Fan Wang,
Sufen Liu,
Hongwei Zhou,
Wenyuan Geng,
Zhaojie Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1965/1/012062
Subject(s) - corrosion , rust (programming language) , materials science , emulsion , cylinder , microstructure , hydraulic cylinder , metallurgy , alloy , pitting corrosion , base (topology) , composite material , chemical engineering , engineering , mechanical engineering , mathematical analysis , mathematics , computer science , programming language
This paper studies the corrosion of the base of the 30CrMnSi hydraulic cylinder due to changes in emulsion concentration during maintenance and its effect on alloy performance. The results show that the corrosion characteristics of the base of the hydraulic cylinder are comprehensive corrosion and local point corrosion, and that the anti-rust performance of emulsion in contact with the outer surface of the hydraulic cylinder base is insufficient, and the chemical reaction with its surface is the main cause of the corrosion of the components. According to the analysis, the hydraulic cylinder base can not be stored at a reasonable emulsion concentration, resulting in a decrease in its surface pitting potential, so that its ability to cope with environmental corrosion decreased, after a period of time, rust on its surface.