Effect of different amounts of oil on electrochemical corrosion behavior of DC06 automobile steel

Zheng Haoqing; Zheng Zhiwang; Zuo Jun; Su Guanqiao

doi:10.7513/j.issn.1004-7638.2022.02.024

Volume 43 Issue 2

May 2022

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Zheng Haoqing, Zheng Zhiwang, Zuo Jun, Su Guanqiao. Effect of different amounts of oil on electrochemical corrosion behavior of DC06 automobile steel[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(2): 157-162. doi: 10.7513/j.issn.1004-7638.2022.02.024

Citation:

Zheng Haoqing, Zheng Zhiwang, Zuo Jun, Su Guanqiao. Effect of different amounts of oil on electrochemical corrosion behavior of DC06 automobile steel[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(2): 157-162. doi: 10.7513/j.issn.1004-7638.2022.02.024

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Effect of different amounts of oil on electrochemical corrosion behavior of DC06 automobile steel

doi: 10.7513/j.issn.1004-7638.2022.02.024

1.
Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan,China
2.
University of Wollongong, Wollongong, 2522, Australia

Received Date: 2021-08-04
Available Online: 2022-05-11
Publish Date: 2022-04-28

Abstract

Abstract

The electrochemical corrosion behavior of DC06 steel plate under different temperatures and oil content was studied by constant temperature and humidity, electrochemical polarization curve and local electrochemical impedance tests. The experimental results showed that the corrosion rate of the DC06 steel plate increased with the increase in temperature under different temperature conditions, and severe pitting corrosion occurred when the temperature was 40 °C. With the increase of oil content to 1500 mg/m², the corrosion rate of steel plate decreased by about 20%, and with the increase in temperature, the corrosion performance improved; DC06 steel plate with a roughness of 1.2 μm can be obtained the optimum corrosion resistance. Moreover, the active dissolution degree of corrosion products of DC06 steel plate increased with the increase in temperature. The corrosion resistance of DC06 steel at high temperature was reduced due to the failure of antirust oil to form a stable protection film at high temperature and the uneven impedance characteristics of the micro area.
- automobile steel,
- DC06,
- potentiodynamic polarization curves,
- amount of oil

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References(8)

References

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