Analysis of Corrosion Evolution in Carbon Steel in the Subtropical Atmospheric Environment of Sichuan

2021 ◽  
Author(s):  
Chao Hai ◽  
Zhigao Wang ◽  
Fangyuan Lu ◽  
Shipeng Zhang ◽  
Cuiwei Du ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Atmospheric Environment

Assessment of the Corrosion Characteristics of the Carbon Steel under Different Atmospheric Environments

2013 ◽  
Vol 684 ◽  
pp. 116-119
Author(s):  
Young Soo Jeong ◽  
Shigenobu Kainuma ◽  
Jin Hee Ahn
Keyword(s):  
Carbon Steel ◽  
Steel Structures ◽  
Steel Plates ◽  
Atmospheric Environment ◽  
Environmental Condition ◽  
Corrosion Effect ◽  
Service Period ◽  
Atmospheric Exposure ◽  
Corrosion Problem ◽  
Maintenance Problem

Various maintenance problem has been reported according to the increase in service period of steel structures. It is difficult to examine and evaluate the corrosion problem and phenomena because of its uncertainty based on the environmental condition. Thus, the corrosion characteristics of the carbon steel were investigated to analyze the corrosion effect of carbon steel on the different atmospheric environments. The atmospheric exposure tests on uncoated carbon steel plates were conducted, to examine the corrosion phenomena and to obtain a fundamental corroded surface under different corrosion atmospheric environments. The corrosion characteristics of the carbon steel were compared depending on their different atmospheric environment and their exposure periods.

scholarly journals Atmospheric Corrosion Analysis and Rust Evolution Research of Q235 Carbon Steel at Different Exposure Stages in Chengdu Atmospheric Environment of China

Scanning ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Zhigao Wang ◽  
Mei Wang ◽  
Jie Jiang ◽  
Xinsheng Lan ◽  
Fangqiang Wang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Power Transmission ◽  
Power Grid ◽  
Digital Camera ◽  
Element Distribution ◽  
Atmospheric Environment ◽  
Corrosion Mechanism ◽  
Steel Material ◽  
Different Seasons ◽  
Q235 Carbon Steel

In order to effectively reduce and retard corrosion of the power transmission and transformation equipment in Chengdu power grid and to improve power supply reliability, Q235 carbon steel material which is the most widely used metal material in power grid was selected as the targeted research object in this article. Exposure experiments were performed in urban atmospheric environment of Chengdu city in the southwest region of China. The corrosion behavior of Q235 carbon steel material was investigated at different seasons. The macro- and micromorphologies after corrosion were observed using a digital camera and scanning electron microscopy (SEM), respectively. Element distribution of the rust layer and the corrosion products was characterized by energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR); the corrosion mechanism was also briefly analyzed.

Investigation of the Corrosion Resistance of Weathering Steel at Different Atmospheric Environment

2012 ◽  
Vol 629 ◽  
pp. 240-244
Author(s):  
Zhi Fen Wang ◽  
Jian Rong Liu ◽  
Li Xin Wu ◽  
Yi Qiang Sun ◽  
Rong Dong Han
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Atmospheric Corrosion ◽  
Atmospheric Environment ◽  
Weathering Steel ◽  
Rust Layer ◽  
Corrosion Rates ◽  
Two Cities ◽  
Environment Factor

The corrosion resistances of a weathering steel SPA-H and a carbon steel Q345 after atmospheric corrosion rests of two cities were measured. The results showed that the corrosion resistance was better for SPA-H than Q345 based on the corrosion rate. The corrosion rates of two steels at Qionghai city were lower than those of Jiangjin city. The characterization of the rusts showed the rust layer on SPA-H was denser and thinner than that of Q345. The rust layers were mainly composed of goethite (α-FeOOH) with a few of lepidocrocite (γ-FeOOH). SPA-H had better weatherability attributed to the alloying elements of copper, chromium and phosphorus enriched in the rust layer. The environment factor such as the sedimentation of SO2 has more effect on the corrosion rates than other factors such as alloy elements.

Exploitation of Artificial Intelligence Methods for Prediction of Atmospheric Corrosion

2012 ◽  
Vol 326-328 ◽  
pp. 65-68 ◽  
Author(s):  
David Seidl ◽  
Zora Jančíková ◽  
Pavel Koštial ◽  
Ivan Ružiak ◽  
Ivan Kopal ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Neural Networks ◽  
Carbon Steel ◽  
Small Error ◽  
Atmospheric Environment ◽  
Corrosion Loss ◽  
Artificial Intelligence Methods ◽  
Environment Temperature ◽  
Structural Carbon ◽  
Structural Carbon Steel

The contribution deals with the use of artificial neural networks for prediction of corrosion loss of structural carbon steel. Nowadays there is certain chance to predict a corrosion loss of materials by artificial intelligence methods, especially by neural networks. A model of neural network for prediction of corrosion loss of structural carbon steel based on the input environmental parameters affecting the corrosion of metals in the atmospheric environment (temperature, relative humidity, air pollution by sulphur dioxide and the exposition time) was created. The model enables to predict corrosion loss of steel with a sufficiently small error.

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