Article
Materials Science, Multidisciplinary
Yiming Jin, Carsten Blawert, Hong Yang, Bjoern Wiese, Jan Bohlen, Di Mei, Min Deng, Frank Feyerabend, Regine Willumeit
Summary: The corrosion resistance of Mg-0.5Zn deteriorated with the extension of solution treatment duration due to the formation of Fe-Si precipitates. Fe-Si precipitates, especially those with high Fe contents, significantly influenced the corrosion initiation and propagation. Directly extruded cast samples showed better corrosion performance compared to solution-treated and then extruded samples.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Heng Chen, Huaiyun Cui, Zebang He, Lin Lu, Yunhua Huang
Summary: The study conducted a field exposure test of mild steel in a real tropical coastal atmosphere to investigate the effect of chloride deposition rate on the atmospheric corrosion behavior. Results showed that high chloride deposition rate reduced the protective ability of rust layer and induced severe corrosion pits. Pearson correlation coefficient analysis indicated strong positive correlations among chloride deposition rate, corrosion rate, and protective ability index (PAI) of rust layer.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Hu Liu, Jie Wei, Junhua Dong, Yiqing Chen, Yumin Wu, Yangtao Zhou, Subedi Dhruba Babu, Wei Ke
Summary: The corrosion behavior of as-received steel and spheroidized steel in acidic chloride environment varies due to differences in microstructure. As-received steel experiences severe localized corrosion on pearlite regions, while spheroidized steel with tempered martensite microstructure has cementite particles that are easy to fall off, reducing cementite accumulation on the steel surface.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Construction & Building Technology
Liu Yang, Xiaojia Yang, Feifan Xu, Qing Li, Renzheng Zhu, Xuequn Cheng, Guowei Yang, Xiaogang Li
Summary: This study investigates the formation and properties of rust layers on low alloy steel with 0.40 wt% tin (Sn) in rural atmospheric environments. Various techniques such as scanning electron microscopy, X-ray diffraction, and Raman spectroscopy were used to analyze the rust layer. Additionally, a new corrosion big data sensor was utilized to evaluate the corrosion resistance of Sn-containing low alloy steels.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Pengxin Wang, Panjun Wang, Qing Li, Xuequn Cheng, Jiaxing Cai, Dawei Zhang, Xiaogang Li
Summary: This study investigates the evolution mechanism of rust formation on Q345 weathering steel using a corrosion-monitoring sensor. The results reveal that rust layer formation goes through two stages: thickening and conversion, with the conversion stage being the controlling step of weathering steel rust stabilization.
Article
Construction & Building Technology
Yihao Tang, Bo Li, Pengfei Ji, Xinyu Zhang, Mingzhen Ma, Riping Liu
Summary: The rust layer of AlMn lightweight weathering steel in industrial atmosphere was studied in terms of structure, phase composition, elemental distribution, and electrochemical properties. The rust layer of lightweight weathering steel exhibits superiority in terms of these characteristics. The enrichment of FeAl2O4 in the inner rust layer refines the rust grain, increases the compactness of the rust layer, and produces an electronegative inner rust layer to block the S element. Mn content affects the corrosion resistance of lightweight weathering steel through MnO/MnO2, which alters the content of FeAl2O4 and α-FeOOH.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Yunpeng Zeng, Wei Yan, Xianbo Shi, Maocheng Yan, Yiyin Shan, Ke Yang
Summary: Cu-added pipeline steel exhibits improved resistance to microbially induced corrosion, with reduced pit depth and diameter in a soil solution. The formation of a Cu-rich film on the steel surface also contributes to its bio-corrosion resistance.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Electrochemistry
Riku Takayama, Masashi Nishimoto, Izumi Muto, Yu Sugawara
Summary: The decrease in pitting potential of Type 304 stainless steel at high temperatures is mainly influenced by the decrease in MnS dissolution potential. The location and shape of pitting also vary with temperature.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Xiaozhen Li, Hui Wang, Jianmin Wang, Junzhe Liu
Summary: The microstructure characteristics of corrosion products of reinforcement under three different corrosive environments were studied using XPS and SEM-EDX. The composition of corrosion substances mainly consists of FeO, Fe3O4, Fe2O3 and Fe-SiO4, with the content of iron oxide increasing from chloride to carbonation to the composite environment, indicating an intensification of corrosion degree. Different morphologies of corrosion were observed in chloride, carbonation, and chloride-carbonization environments.
Article
Materials Science, Multidisciplinary
Yue Wang, Xin Mu, Zhenye Chen, Zhangguo Lin, Junhua Dong, Enobong Felix Daniel, Jianjun Qi, Wei Ke
Summary: In a simulated coastal-industrial atmosphere, alloyed Cu and P were found to inhibit electrochemical processes and promote the formation of alpha-FeOOH in the initial rust composition of weathering steel, resulting in a lower corrosion rate. The original/processed data supporting these findings are not currently available due to an ongoing study.
Article
Chemistry, Multidisciplinary
Lei Cui, Xiaojian Gao, Meiyan Hang, Tiefeng Chen
Summary: A multi-component corrosion inhibitor composed of organic and inorganic substances was developed and compared with other inhibitors. The results showed that the multi-component corrosion inhibitor had better corrosion resistance after 60 days of immersion. The mechanism of adsorption and oxidation-reduction reactions were analyzed, and a new concept of a multi-functional protective film was proposed.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Han Zhang, Jing Xu, Liya Guo, Han Dong
Summary: The corrosion results of four types of steels exposed to the atmospheric environment in Baoshan District of Shanghai for three years were analyzed. Carbon steel had the highest atmospheric corrosion rate and more rust layer exfoliation. Weathering steels and alloy steel showed less exfoliation of rust layers, with an enrichment of Cr in the inner layers, promoting the formation of compact and protective rust layers, preventing rust exfoliation and oxygen infiltration, contributing to crack restoration, and thus improving atmospheric corrosion resistance.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Qiang Li, Zhiji Gao, Tao Yang, Zheng Dong, Zhilu Jiang, Qi He, Chuanqing Fu
Summary: Non-uniform corrosion of steel bars is a significant factor influencing the durability of concrete. This study investigates the thickness distribution of the rust layer and the cracking pattern of concrete under various influencing factors. Understanding these factors is essential for predicting the service life of reinforced concrete structures and preventing premature cracking. The results demonstrate the effects of different geometric parameters and steel bar positions on the corrosion expansion cracking pattern and highlight the importance of considering steel bar characteristics in concrete design.
Article
Construction & Building Technology
Huili Wang, Wanghua Zhu, Sifeng Qin, Yonggang Tan
Summary: This study simulates the corrosion of steel bars in concrete structures under chloride environments, taking into account the impact of concrete coarse aggregates. By generating random polygonal coarse aggregates and establishing an electrochemical corrosion model based on the Butler-Volmer equation, the researchers were able to verify the accuracy of the model and explore the relationship between the volume fraction of coarse aggregates and the corrosion process. The results indicate that coarse aggregates can suppress steel corrosion.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Shao-zheng Ma, Li-juan Sun, Hu-yuan Sun, Hong-bin Sun, Jin-feng Jiang, Yi-xin Yin, Shu-feng Qu, Zhen-hua Liu, Shao-xia Xu
Summary: The corrosion performance of Q370qENH weathering steel after different surface treatments was studied, and it was found that weathering steel with additive contents (sample B) and weathering steel with a newly developed rust layer (sample C) exhibited better corrosion resistance compared to bare weathering steel (sample A).
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2022)