Article
Chemistry, Analytical
Tiancai Cheng, Hualiang Huang, Gangliang Huang
Summary: The galvanic corrosion behavior between ADC12 aluminum alloy and copper in 3.5 wt% NaCl solution was investigated. The results showed that the galvanic effect reduced the formation of pitting on the surface of aluminum alloy, but promoted the formation of pitting on the surface of copper.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yidi Li, Biaobiao Yang, Ming Zhang, Hui Wang, Wei Gong, Ruilin Lai, Yunping Li, Jianwei Teng
Summary: The corrosion behavior and mechanical property of 5083 Al-Mg alloy manufactured by additive friction stir deposition (AFSD) were compared with 5083-H112 alloy. AFSD can reduce the pitting corrosion susceptibility of 5083 alloy due to the refinement and re-dissolution of Mn rich secondary phase particles. However, the AFSD alloy has a more significant susceptibility to intergranular corrosion (IGC) due to the exfoliation of fine equiaxed grains after sensitization. This is attributed to the presence of beta-phase on the grain boundaries of the AFSD alloy, which is prone to acid attack.
Article
Materials Science, Multidisciplinary
Zhiping Sun, Wenqing Wu, Yongnan Chen, Zhanwei Yuan, Yongshuai Zhang, Xiping Guo
Summary: TiAl alloys have broad development prospects in the aerospace industry. Research shows that high Nb-containing TiAl alloys exhibit better hot corrosion resistance. Understanding microstructure evolution and hot corrosion mechanisms can provide a comprehensive assessment of alloy performance.
Article
Chemistry, Physical
Guonan Liu, Jilei Xu, Baojing Feng, Jinhui Liu, Dongqing Qi, Wenzhan Huang, Peixu Yang, Shaojun Zhang
Summary: Adjusting the microstructure through deformation process affects the corrosion behavior of Mg alloys. This study investigated the corrosion performance of extruded and forged WE43 alloys in NaCl solution, and found that the different microstructures resulted in different corrosion behaviors and corrosion resistance.
Article
Materials Science, Multidisciplinary
Leticia Cabrera-Correa, Leandro Gonzalez-Rovira, Adrian Ojeda-Lopez, Juan de Dios Lopez-Castro, F. Javier Botana
Summary: The effect of thermal ageing at 150 oC on the corrosion behaviour of Scalmalloy (R) alloy additively manufactured by laser powder bed fusion is investigated. The results show that cyclic polarisation curves, electrochemical impedance measurements, and mechanical tests exhibit similar results before and after the thermal treatment. However, electron microscopy characterisation reveals that the application of this temperature for sufficient time causes sensitization of the alloy to intergranular corrosion processes.
Article
Materials Science, Multidisciplinary
Leticia Cabrera-Correa, Leandro Gonzalez-Rovira, Juan de Dios Lopez-Castro, F. Javier Botana
Summary: Research on localized corrosion of Scalmalloy processed by SLM under certified conditions reveals correlation with intermetallic particles in the microstructure, showing two groups of pits with different repassivation behavior in all samples. Heat treatment does not affect pitting corrosion performance, but slightly increases intergranular corrosion susceptibility.
Article
Materials Science, Multidisciplinary
Yu Gao, Danqing Feng, Masoumeh Moradi, Chuntian Yang, Yuting Jin, Dan Liu, Dake Xu, Xiaobo Chen, Fuhui Wang
Summary: Three representative Vibrio species exhibit profound inhibitory effect on the corrosion of AA5083 by forming mature biofilms that act as a diffusion barrier to prevent the penetration of corrosive chloride and consume oxygen, thus increasing the passive range and inhibiting localized attack on the surfaces of AA5083.
Article
Chemistry, Physical
Alexey Y. Zhizhchenko, Anastasiia V. Shabalina, Ali A. Aljulaih, Stanislav O. Gurbatov, Aleksandr A. Kuchmizhak, Satoru Iwamori, Sergei A. Kulinich
Summary: This study investigated the long-term stability of organosilane layers formed on polished aluminum alloy in contact with water. The results showed that the prepared organosilane layer gradually hydrolyzed over time, allowing water to interact with the underlying layer and causing a decrease in hydrophobicity. Additionally, local electrochemical corrosion was observed in the one-layer samples after immersion in water.
Article
Chemistry, Physical
Ion Mitelea, Ilare Bordeasu, Florin Frant, Ion-Dragos Utu, Corneliu Marius Craciunescu, Cristian Ghera
Summary: This study investigates the effect of surface re-melting on the reduction of material loss through cavitation erosion in aluminum alloys. The results show that surface re-melting treatment can increase microhardness and decrease erosion rate.
Article
Chemistry, Physical
Da Wang, Amanda Leong, Weiqian Zhuo, Huali Wu, Qiufeng Yang, Jinsuo Zhang
Summary: The study investigated the factors affecting aluminum alloy corrosion and precipitation in a high-temperature flow loop under different post-LOCA chemistry conditions, including temperature, pH, flow rate, and presence of other ions. It was found that the solution pH strongly influences aluminum corrosion and the volume of formed precipitate. Additionally, a kinetic equation was developed to describe aluminum loss as a function of mass transfer coefficient and solution pH, highlighting the significant influence of OH concentration on aluminum corrosion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Cecilia Monticelli, Federica Zanotto, Andrea Balbo, Vincenzo Grassi, Alberto Fabrizi, Giulio Timelli
Summary: This research examined the corrosion behavior and susceptibility to stress corrosion cracking (SCC) of a high-pressure die-cast secondary AlSi9Cu3(Fe) alloy in 3.5% NaCl solution. Various testing methods revealed the presence of critical surface segregation zones, where strong corrosion attack occurred due to composition differences and peculiar morphology of noble Al2Cu phases. No SCC susceptibility was detected, but localized corrosion attack and hydrogen gas bubbling were observed at the interphases of noble phase/alpha-Al matrix.
Article
Materials Science, Multidisciplinary
Ho Seok Kim, Bo Ram Kang, Seong Man Choi
Summary: A multilayer coating of hafnium carbide and titanium carbide was fabricated on SiC-coated carbon/carbon (C/C) composite using a vacuum plasma spraying (VPS) system. The analysis of microstructure, composition, adhesion strength, and ablation performance confirmed that the HfC/TiC multilayer coating can effectively protect the carbon composite material.
Article
Crystallography
Dionisie Istrate, Beatrice-Gabriela Sbarcea, Alin Mihai Demian, Andreea Daniela Buzatu, Laura Salcianu, Ilare Bordeasu, Lavinia Madalina Micu, Cristian Ghera, Bogdan Florea, Brandusa Ghiban
Summary: The aim of this study is to investigate the correlation between mechanical properties and cavitation erosion properties of aluminum alloy 5083 after different heat treatments. The best combination of heat treatments is homogenization at 350 degrees C followed by artificial aging at 180 degrees C, resulting in the highest mechanical characteristics and cavitation erosion resistance.
Article
Chemistry, Physical
Ahmed A. Farag, Hossam E. Abdallah, Emad A. Badr, Eslam A. Mohamed, Asmaa Ali, A. Y. El-Etre
Summary: The study aimed to synthesize and explore the inhibitory effects of three morpholinium cationic surfactants on carbon steel corrosion in petroleum wells formation water containing 3 M HCl solution at different temperatures. The synthesized compounds were characterized by FTIR and HNMR analysis, with inhibition efficiencies reaching up to 93.1%. Temperature effects on corrosion behavior were studied and the Villamil adsorption isotherm was found to be the most suitable model. Additionally, the biocidal activity and surface morphology improvements of the surfactants were investigated, showing promising results in corrosion inhibition.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Ayda Shahriari, Dharmendra Chalasani, Babak Shalchi Amirkhiz, Mohsen Mohammadi
Summary: This study examined the corrosion performance of Nickel-aluminum bronzes (NAB) fabricated by wire arc additive manufacturing (WAAM) and casting methods, finding that WAAM samples showed superior corrosion resistance in chloride solution. Heat treatment also affected the microstructural characteristics and corrosion resistance of the NAB samples.
NPJ MATERIALS DEGRADATION
(2023)
Article
Materials Science, Multidisciplinary
Mingjie Dai, Jing Liu, Feng Huang, Qian Hu, Chengsi Cao, Y. Frank Cheng
Article
Materials Science, Multidisciplinary
Yani Zhang, Guoxian Zhao, Y. Frank Cheng
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Applied
Hong-Qiang Fan, Dong-Dong Shi, Meng-Meng Ding, Mou-Cheng Li, Y. Frank Cheng, Qian Li
PROGRESS IN ORGANIC COATINGS
(2020)
Article
Chemistry, Multidisciplinary
Hongwei Liu, Yuning Dai, Y. Frank Cheng
ARABIAN JOURNAL OF CHEMISTRY
(2020)
Article
Energy & Fuels
Yi Shuai, Dao-Chuan Zhou, Xin-Hua Wang, Heng-Gang Yin, Shidong Zhu, Ji Li, Y. Frank Cheng
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Biophysics
Hongwei Liu, Y. Frank Cheng
COLLOIDS AND SURFACES B-BIOINTERFACES
(2020)
Article
Materials Science, Multidisciplinary
Yao Yang, Y. Frank Cheng
Article
Materials Science, Multidisciplinary
Hongwei Liu, Y. Frank Cheng
Article
Engineering, Civil
Jialin Sun, Y. Frank Cheng
ENGINEERING STRUCTURES
(2020)
Article
Engineering, Mechanical
Zhuowei Tan, Dalei Zhang, Liuyang Yang, Zhenbo Wang, Frank Cheng, Mingyang Zhang, Youhai Jin, Shidong Zhu
TRIBOLOGY INTERNATIONAL
(2020)
Article
Energy & Fuels
Guojin Qin, Y. Frank Cheng
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Energy & Fuels
Yi Shuai, Xin-Hua Wang, Y. Frank Cheng
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Engineering, Civil
Zhuwu Zhang, Liping Guo, Y. Frank Cheng
Summary: A finite element model was developed to assess the interaction of internal and external defects on pipelines. It was found that external defects have higher maximum stress than internal defects, and pipelines with only external defects require a larger longitudinal spacing before interaction occurs.
THIN-WALLED STRUCTURES
(2021)
Article
Energy & Fuels
Xiaoqin Song, Dongxin Li, Xiao Sun, Xingjie Mou, Frank Cheng, Yuexin Yang
Summary: Numerical models were developed to investigate the critical inclination of a pipeline to eliminate water accumulation at the floor of the pipe carrying oil-water fluid. Quantitative relationships were determined between the pipe inclination angle and factors such as flow velocity, viscosity, and pipe diameter, preventing water accumulation.
Article
Construction & Building Technology
Shan Qian, Y. Frank Cheng
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.