Influence of Applied Load and Sliding Velocity on Tribocorrosion Behavior of 7075-T6 Aluminum Alloy

In this paper, the tribocorrosion behavior and synergistic effect of 7075-T6 aluminum alloy under different applied loads (100, 150, and 200 N) and sliding velocities (100, 150, and 200 rpm) were studied in a 3.5 wt.% NaCl solution. Tribocorrosion experiments were conducted in a tribobocorrosion sys...

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Bibliographic Details
Published inMetals (Basel ) Vol. 12; no. 10; p. 1626
Main Authors Li, Zhengyi, Yu, Hongying, Wen, Lei, Sun, Dongbai
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2022
Subjects
Alloys
Aluminum
aluminum alloy
Aluminum alloys
Aluminum base alloys
Cathodic protection
Corrosion and anti-corrosives
Corrosion effects
Corrosion potential
Corrosive wear
electrochemical
Electrochemical analysis
Experiments
Friction
Load
Microscopy
Morphology
Seawater
Sliding
Specialty metals industry
Synergistic effect
tribocorrosion
Velocity
Wear rate
Work stations
China
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Summary:In this paper, the tribocorrosion behavior and synergistic effect of 7075-T6 aluminum alloy under different applied loads (100, 150, and 200 N) and sliding velocities (100, 150, and 200 rpm) were studied in a 3.5 wt.% NaCl solution. Tribocorrosion experiments were conducted in a tribobocorrosion system with pin-on-disc testing. The results show that the interaction between applied load and sliding velocity significantly affects the mechanical and electrochemical properties of 7075-T6 aluminum alloy. Increases in sliding velocity and applied load will accelerate the corrosion. Due to the synergistic effect of corrosion and wear, the wear rate is almost unchanged as the sliding velocity increases. When the applied load increased from 100 to 200 N, the wear rate increased from 1.97 × 10−5 to 2.08 × 10−5 mm3/N·m, and the delamination wear phenomenon was aggravated.
ISSN:2075-4701
2075-4701
DOI:10.3390/met12101626