Article
Construction & Building Technology
Shayeste Hejazian, Mehdi Ahmadyari-Sharamin
Summary: This study investigated the effect of Arabic and guar gums on the corrosion behavior of steel in a concrete simulator. The results showed that these gums exhibited good inhibitive properties and could resolve the challenge of construction materials corrosion.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Polymer Science
Rizwan Ullah, Nadia Khan, Rozina Khattak, Mehtab Khan, Muhammad Sufaid Khan, Omar M. Ali
Summary: The current research focused on the super capacitive behavior of organic conducting polymer, i.e., polypyrrole (PPy) and its composites with gum arabic (GA). The synthesized composites material showed high thermal stability and compact morphology. The electrochemical properties of the composites exhibited impressive specific capacitance and high energy density.
Article
Environmental Sciences
Fang Guan, Zheng Liu, Xucheng Dong, Xiaofan Zhai, BinBin Zhang, Jizhou Duan, Nan Wang, Ying Gao, Lihui Yang, Baorong Hou
Summary: The study revealed that electron mediators and carbon starvation work synergistically to promote MIC, increasing the corrosion rate of steel. Addition of riboflavin and cytochrome c in SRB media enhances corrosion rate and biofilm catalytic activity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Zhengyi Xu, Pengyuan Zhang, Bo Zhang, Bing Lei, Zhiyuan Feng, Yawei Shao, Yanqiu Wang, Guozhe Meng
Summary: This study investigated the effect of stress on the cathodic hydrogen evolution behavior of X70 pipeline steel through electrochemical tests, tensile tests, and microstructural characterization. The results showed that tensile stress increased the activity of hydrogen adsorption sites on the metal surface, which had a significant impact on the generation, adsorption, and permeation of hydrogen atoms. Experimental data demonstrated that tensile stress enhanced the adsorption of hydrogen atoms on the surface and inhibited the Tafel and Heyrovsky reaction, leading to an increase in subsurface hydrogen atom concentration and further enhancing the hydrogen embrittlement susceptibility of X70 steel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Qiang Li, Bingcheng Liu
Summary: This study investigates the factors influencing erosion-corrosion in oilfield gathering pipelines steel using a home-made testing pipe flow loop. The results show that steel is corroded in oil-water flow, with the corrosion rate increasing with flow velocity and the addition of solid particles intensifying localized corrosion. In an erosion-corrosion test with 2 wt% quartz sand at a velocity of 2 m/s, pure corrosion and pure erosion accounted for 47.50% and 70.83% of the damage, respectively. The erosion-enhanced corrosion contributed to 16.67% of the total weight loss, while corrosion inhibiting erosion damage accounted for 35.00%, indicating negative synergistic effects in the oil-water-sand multiphase flow conditions.
Article
Chemistry, Physical
Sandeep Yadav, Jhon Freddy Aceros Cabezas, Reza Khatib Zadeh Davani, Jerzy Szpunar, Jiming Zhang
Summary: The correlation between microstructural features and hydrogen embrittlement susceptibility was established through evaluating the hydrogen-induced mechanical degradation of two X70 pipeline steels in different environmental conditions. This study aims to enhance the resistance to hydrogen embrittlement.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Electrochemistry
Meijun Wu, Zhiming Gao, Shixiong Wu, Yingjie Liu, Wenbin Hu
Summary: The corrosion behavior of X70 pipeline steel in 3.5% NaCl solution is influenced by temperature, with higher temperature leading to increased corrosion rate and a significant increase in the amount and size of corrosion products.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Physical
Ali Dehghani, Amir Hossein Mostafatabar, Bahram Ramezanzadeh
Summary: This study analyzes the impact of Mustard extract on steel corrosion mitigation and its synergistic effect in mixture with cerium cations. The findings show that the Mustard extract inhibition impact was boosted in the presence of cerium cations, with optimal performance observed at a mixture concentration of 200:600 ppm Mustard extract:Cerium. Electrochemical and morphological analysis confirm the formation of a protective layer containing Mustard phytochemicals and cerium oxide/hydroxides.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
J. M. Giarola, J. W. Calderon-Hernandez, J. M. Quispe-Aviles, J. A. Avila, W. W. Bose Filho
Summary: Research on a two-pass FSW welded joint of API 5L X70 pipeline steel revealed that the microstructure in the welded regions affects the generation of carbonate deposits, with cracks initiation and propagation being more prone in hard phases.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Optics
Xingkong Tao, Xianli Ba, Guomin Xu, Liming Liu
Summary: Low power pulsed laser-induced MAG hybrid overhead welding is an effective method for joining medium or thick pipe diameter steel. This paper focuses on the effect of pulsed laser configuration on the welding process and joint formation. By recording the welding process and analyzing the dynamic behaviors of keyhole and molten pool, it was found that a stable arc characteristic and smooth molten pool flow were formed under the laser power of 400 W. The optimal welding seam was obtained in this laser power, without undercut and splash.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
A. Ouladbrahim, I Belaidi, S. Khatir, E. Magagnini, R. Capozucca, M. Abdel Wahab
Summary: This study discusses the application of the WOA-ANN hybrid model for crack length prediction and compares it with other techniques. The results show that the WOA-ANN method performs well in solving complex multidimensional problems.
MECHANICS OF MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Nitin Kumar Sharma, Rangasayee Kannan, Leijun Li, Neil Anderson, Muhammad Rashid, Laurie Collins, Jonathan D. Poplawsky, Raymond Unocic
Summary: This study used atom probe tomography to measure elemental segregation of the bondline in ERW linepipe steel, identifying a new mechanism for carbon depletion. Post-weld heat treatment homogenized alloying elements across the bondline, while segregation of elements in the heat-affected zone followed NPLE kinetics for bainite transformation.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Lina Qiu, Dandan Zhao, Shujia Zheng, Aijun Gong, Zhipeng Liu, Yiran Su, Ziyi Liu
Summary: Microbiologically influenced corrosion (MIC) is common in various industries, and sulfate-reducing bacteria (SRB) often contribute to MIC. This study isolated a strain of Pseudomonas stutzeri (P. stutzeri) from soil, which has the ability to inhibit SRB corrosion. P. stutzeri can coexist with SRB in the same growth environment, and it effectively inhibits the corrosion of X70 steel caused by SRB under specific conditions.
Article
Engineering, Multidisciplinary
Yandong Qu, Zhengpeng Li, Jiye Li, Delei Zou, Ruixue Zhang, Yue Yu
Summary: The study investigated the effect of weld geometry parameters on the dynamic performance of buried pipelines under blast loads. The results showed that different geometry parameters had varying effects on the dynamic comparison index of the welded pipes, suggesting the need for proper configuration in selecting geometry and dimensions. The recommended weld geometry parameters to decrease the effects on the dynamic behavior are specified for the welded X70 steel pipeline.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2021)
Article
Chemistry, Physical
A. Y. Yassin, A. M. Abdelghany, M. M. Shaban, Y. M. Abdallah
Summary: In this study, a polymer blend filled with gold nanoparticles was synthesized and utilized as a corrosion inhibitor for carbon steel in a 5% sulfamic acid solution, showing up to 91.3% inhibition efficiency. The inhibition mechanism followed Langmuir adsorption isotherm, with quantum chemical computations proving the effectiveness of the nanocomposite. The experimental and computational results demonstrated a significant agreement, indicating the efficiency of the composite as a corrosion inhibitor.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
