Corrosion Characteristics of Atmospheric Corrosion of 1050 Al-alloy under Power-on Condition

doi:10.11902/1005.4537.2021.348

Journal of Chinese Society for Corrosion and protection

2022, Vol. 42

Issue (6): 1065-1069 DOI: 10.11902/1005.4537.2021.348

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Corrosion Characteristics of Atmospheric Corrosion of 1050 Al-alloy under Power-on Condition

XIA Xiaojian¹, WAN Xinyuan¹, GAO Yan², WANG Qiwei², YAN Kanghua¹, CHEN Yunxiang¹, HONG Yicheng¹, ZHANG Junxi²(

)

1. State Grid Fujian Electric Power Research Institute, Fuzhou 350007, China
2. Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China

Cite this article:

XIA Xiaojian, WAN Xinyuan, GAO Yan, WANG Qiwei, YAN Kanghua, CHEN Yunxiang, HONG Yicheng, ZHANG Junxi. Corrosion Characteristics of Atmospheric Corrosion of 1050 Al-alloy under Power-on Condition. Journal of Chinese Society for Corrosion and protection, 2022, 42(6): 1065-1069.

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Abstract

The corrosion behavior of 1050 Al-alloy under current-carrying condition was studied by means of salt spray test, electrochemical measurement, scanning electron microscope (SEM) and X-ray diffraction (XRD). The results showed that the current condition had a significant effect on the corrosion of 1050 Al-alloy. Both of the corrosion current density and mass loss rate of the sample increased gradually with the increment of applied current density.The corrosion behavior of 1050 Al-alloy in marine atmosphere was characterized in simulated electrification condition through the analysis of the structure and morphology of corrosion products.

Key words: 1050 Al-alloy atmospheric corrosion alternating current transmission network

Received: 04 December 2021

ZTFLH:

TG172

Fund: Science and Technology Project of State Grid Fujian Electric Company(521304200005)

About author: ZHANG Junxi, E-mail： zhangjunxi@shiep.edu.cn

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	Articles by authors
	Xiaojian XIA
	Xinyuan WAN
	Yan GAO
	Qiwei WANG
	Kanghua YAN
	Yunxiang CHEN
	Yicheng HONG
	Junxi ZHANG

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https://www.jcscp.org/EN/10.11902/1005.4537.2021.348 OR https://www.jcscp.org/EN/Y2022/V42/I6/1065

Fig.1 Trend graph of 1050 Al-alloy corrosion rate with current variation

Fig.2 XRD pattern of the corrosion products of 1050 Al-alloy passes different currents

Fig.3 SEM morphologies of 1050 Al- alloy with 0 A (a); 10 A (b); 20 A (c); 30 A (d); 40 A (e) currents

Fig.4 Potential polarization curves (a) and mean value diagram of corrosion current density (b) of 1050 Al-alloy under different currents

Table 1 Dynamic parameters fitting of polarization curves of 1050 aluminum alloy with different currents

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