Article
Materials Science, Multidisciplinary
Jiang Xu, Shuang Peng, Zhengyang Li, Shuyun Jiang, Zong-Han Xie, Paul Munroe, Hong Lu
Summary: A CoCrFeNiTiMo high entropy alloy (HEA) coating with a duplex phase microstructure was successfully prepared on a Ti-6Al-4 V substrate using the double cathode glow discharge method. The HEA coating exhibited high hardness, high load bearing capacity, and strong adhesion to the substrate. Compared to Ti-6Al-4 V, the HEA coating showed much less severe cavitation erosion damage in a 3.5% NaCl solution due to its excellent mechanical properties and high corrosion resistance.
Article
Chemistry, Multidisciplinary
Ines Dhouibi, Fatma Masmoudi, Mohamed Bouaziz, Mohamed Masmoudi
Summary: The research investigates the use of myrtle and rosemary essential oils as novel corrosion inhibitors for copper in salt solution, showing that the oils effectively enhance the corrosion inhibition efficiency, with rosemary performing slightly better than myrtle.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
D. Thirumoolan, K. Anver Basha, S. P. Sakthinathan, T. Siva
Summary: The copolymer of benzoylphenyl methacrylate and methoxyethyl methacrylate was synthesized and its thermal stability and corrosion protection efficiency on mild steel were investigated. The electrochemical results confirmed the good protective effect of the copolymer coating on the metal surface.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Multidisciplinary
Asiful H. Seikh, Hossam Halfa, Mahmoud S. Soliman
Summary: Molybdenum is an important alloying element in maraging steels, and increasing its concentration can improve corrosion resistance up to a certain point. However, excessive molybdenum content may reduce the corrosion resistance of the steel.
Article
Electrochemistry
Shih-Chen Shi
Summary: The study shows that HPMCP coatings have durability and corrosion resistance in solutions with different pH values and immersion durations. The coating dissolves in acidic environments, reducing its corrosion resistance; however, with time, the system's corrosion resistance can still be maintained.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Dheeraj Jaiswal, Sharvan Kumar, C. K. Behera
Summary: This study evaluated the effect of Cu addition on the corrosion behavior of Sn-9Zn-xCu alloys and found that adding a small amount of copper can improve the corrosion resistance of the alloy.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Eugene B. Caldona, Min Zhang, Guangchao Liang, T. Keith Hollis, Charles Edwin Webster, Dennis W. Smith, David O. Wipf
Summary: This study demonstrated the inhibition effect of triazole- and imidazole-based compounds on the corrosion of mild steel in 1.0 M HCl solution through electrochemical measurements. Among these compounds, the triazole-based compound exhibited the highest inhibitive performance at a concentration of 850 μM, showing an efficiency of over 90%. The results were supported by microscopy analyses and x-ray diffraction, confirming the protective inhibitor layer formation on the metal surface.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Badr Baach, Moussa Ouakki, Soumya Ferraa, Hanane Barebita, Mohammed Cherkaoui, Abderrazak Nimour, Taoufik Guedira
Summary: New crystalline compounds based on an oxygen-deficient fluorite structure were synthesized and tested as corrosion inhibitors for mild steel in hydrochloric acid solution. The inhibitor efficiency was observed to increase with concentration, reaching a maximum of 93.7% for one compound at room temperature. The inhibitors exhibited excellent performance, although their effectiveness decreased at higher temperatures. Thermodynamic parameters were also calculated and discussed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Hany S. Abdo, Asiful H. Seikh
Summary: The study indicates that 304 austenitic stainless steel is more susceptible to corrosion in the presence of H2S and Cl- type ionic species, while CO2 can help decrease the corrosion rate. Raman spectroscopy analysis reveals that the passive layer formed under different conditions consists of FeCO3, FeS2, Fe2O3, Fe(OH)2, etc. SEM images further verify that elemental S- and Cl- can infiltrate the passive film and cause deterioration.
Article
Materials Science, Multidisciplinary
Hany S. Abdo, Asiful H. Seikh, Jabair Ali Mohammed, Tauriq Uzzaman
Summary: In this study, variations in pulse energy were found to affect the microstructure and corrosion efficiency of a weld. Increasing pulse energy led to changes in the fusion zone and heat-affected zone, with a notable increase in the corrosion resistance of the weld material. Electrochemical tests and spectroscopy confirmed these findings, showcasing improved corrosion resistance with higher pulse energies and the presence of an oxide layer on the surface.
Article
Chemistry, Analytical
Odilon Romaric Wamba-Tchio, Martin Pengou, Anne-Lucie Teillout, Cedric Baumier, Israel Martyr Mbomekalle, Pedro De Oliveirac, Charles Peguy Nanseu-Njiki, Emmanuel Ngameni
Summary: The inhibitive activity of a mixture of Ficus pumila Linn. leaves hydroalcoholic extracts (HEFP) and zinc ions against corrosion of XC38 steel in NaCl solution was investigated. It was found that appropriate concentrations of zinc ions and HEFP can significantly increase the inhibitive capacity, and the formation of organometallic complexes between zinc ions and organic compounds of HEFP is the determining step of the synergistic inhibition. Simulation experiments further confirmed the effectiveness of the proposed inhibition mechanism.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Qianqian Song, Anmin Li, Da Qi, Weiou Qin, Yitai Li, Yongzhong Zhan
Summary: This paper investigates the corrosion resistance of Sn58Bi-XCr (X = 0, 0.1, 0.2, 0.3 wt%) and analyzes the electrode reaction process of the corrosion process using electrochemical impedance spectroscopy and Tafel linear extrapolation. The results show that Sn58Bi-0.3Cr has the largest capacitive arc radius and Rp in the Nyquist plot. The Sn58Bi-0.3Cr solder exhibits the highest impedance values and phase angles, indicating the best corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Crystallography
Hany S. Abdo, Asiful H. Seikh, Ubair Abdus Samad, Ahmed Fouly, Jabair Ali Mohammed
Summary: The study investigated the electrochemical corrosion behavior of laser welded 2205 duplex stainless-steel in artificial seawater with different pH values, showing a direct relationship between solution pH and film resistance, affecting pitting formation. Different bilayer structure composed of metal oxides was observed depending on the acidity or alkalinity level, with increased pitting in lower pH values and improved corrosion resistance in more alkaline solutions.
Article
Construction & Building Technology
Yong Wen, Xinmei Ma, Yuxin Cai, Lang Liu, Lina Zhou, Qing-feng Liu
Summary: The inhibition potency of thiamine (VB1), nicotinic acid (VB3), pyridoxine (VB6), and ascorbic acid (VC) against reinforcement corrosion in chloride environments was studied. Quantum chemical calculation was used to reveal the corrosion inhibition mechanism. The results showed that all four vitamins could effectively reduce the risk of chloride-induced reinforcement corrosion, with VB6 exhibiting the strongest corrosion inhibition effect. Each vitamin had a specific concentration for achieving optimum corrosion inhibition efficiency.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ali Mohseni, Beitallah Eghbali, Yaghoub Pazhuhanfar
Summary: The research investigated the corrosion behavior of stir cast Al/B4C and TiB2 composites with different amounts of reinforcements and after undergoing the ARB process. The results showed that the samples with 6wt.% B4C had the best corrosion resistance post-ARB treatment due to less structural defects and homogeneously distributed particles. The different nature and distribution of reinforcing particles played a significant role in the corrosion resistance of the composites.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Chemistry, Physical
Arslan Khalid, Musharaf Abbas, Yongang Zhang, Margaret Hyland, Paul R. Munroe
Summary: This study investigates the bonding and adherence of spray particles to the substrate in thermal spray coatings. The addition of chromium to nickel promotes improved adherence and modifies the formation of the spray particles.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuang Peng, Jiang Xu, Zong-Han Xie, Paul Munroe
Summary: This study engineered a TiZrHfMoW refractory high entropy alloy (RHEA) nanocrystalline coating onto a commercially pure Ti substrate to improve its corrosion resistance for potential application in proton exchange membrane fuel cells (PEMFCs). The results showed that the RHEA coating exhibited enhanced corrosion resistance and maintained a stable passive state.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rumana Akhter, Avi Bendavid, Paul Munroe
Summary: The application of a negative substrate bias in physical vapor deposition has significant effects on the surface morphology, microstructure, and mechanical characteristics of ceramic-based coatings. Increasing bias voltage results in a transition from fine columnar grains to refined equiaxed grains, accompanied by enhanced hardness and reduced defect density.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Yuhao Chen, Jiang Xu, Zong-Han Xie, Paul Munroe
Summary: In this study, a TaCN nanoceramic coating was engineered to improve the corrosion resistance and surface conductivity of metal bipolar plates in proton exchange membrane fuel cells. The TaCN coating exhibited superior corrosion resistance, significantly enhancing the performance of the titanium substrate while maintaining a passive state, making it a competitive protective coating for bipolar plates.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Ashok Meghwal, Surinder Singh, Ameey Anupam, Hannah J. King, Christiane Schulz, Colin Hall, P. Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: In this study, an AlCoCrFeNi HEA coating was fabricated using gas atomized feedstock and the HVOF process. The coating exhibited resistance to surface degradation at room temperature and had high micro-and nano-hardness. However, the presence of the hard BCC/B2 phase composition led to severe brittleness and affected the wear resistance of the coating. The coating also showed superior general corrosion resistance but was susceptible to pitting corrosion due to the selective dissolution of the B2 phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Sara Tahery, Paul Munroe, Christopher E. Marjo, Aditya Rawal, Joseph Horvat, Mohanad Mohammed, J. Beau W. Webber, Ji-Youn Arns, Christoph H. Arns, Genxing Pan, Rongjun Bian, Stephen Joseph
Summary: This study aims to compare the characteristics of NPK granule and BNPK granule, and investigate the nutrient storage mechanism of BNPK granule in soil. The results show that BNPK granule has a larger surface area and porosity, exhibiting higher capacity to store and donate electrons, and relatively lower mineral elements dissolution, indicating the superiority of BNPK granule.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: Doping with Au atoms significantly reduces the adsorption energy of CO on WS2 monolayers and forms a new C=S double bond. The WS2/Au monolayer exhibits excellent CO detection sensitivity, while the adsorption and electronic properties for other gases remain relatively unchanged.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Jing Xu, Yanjie Zhao, Yuhao Chen, Yujie Chen, Zong-Han Xie, Paul R. Munroe
Summary: The study fabricated a composite coating with multiple antibacterial modes, showing highly efficient bactericidal effect against Escherichia coli and Staphylococcus aureus, and could be a promising candidate to combat medical device-associated infections.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: This work investigates the feasibility of using Li decoration on the B4CN3 monolayer for hydrogen storage. The results show that Li can physically adsorb and desorb a large amount of H2 gas on the monolayer, indicating its high hydrogen storage performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: In this study, the hydrogen storage mechanism on the CuNi co-doped MgH2(101) surface was investigated using the first-principles approach. The results showed that the most stable adsorption site for hydrogen on the surface is above the Ni atom, and there is substantial charge exchange between the hydrogen molecule and Ni atom.
Article
Engineering, Environmental
Yang Wang, Stephen Joseph, Xiang Wang, Zhe H. Weng, David R. G. Mitchell, Mitchell Nancarrow, Sarasadat Taherymoosavi, Paul Munroe, Guitong Li, Qimei Lin, Qing Chen, Markus Flury, Annette Cowie, Olivier Husson, Lukas Van Zwieten, Yakov Kuzyakov, Johannes Lehmann, Baoguo Li, Jianying Shang
Summary: Biochar amendments increased total soil carbon by 71%, 182%, and 210% for B30, B60, and B90, respectively. The application of biochar at different rates significantly increased the subsoil inorganic carbon (SIC), mainly occurring in the subsoil below 1 m. The study provided critical knowledge on the impact of biochar application on carbon stocks in subsoil in the long term.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ashok Meghwal, Samuel Pinches, Ameey Anupam, Lionel Lie, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: In this study, a near-dense and crack-free CoCrFeNi medium entropy alloy (MEA) coating was fabricated using extreme-high-speed laser material deposition (EHLA). The coating retained a single-phase face-centered cubic (FCC) structure, and showed anisotropic mechanical deformation behavior at a localized level. Microstructure-mechanical property correlations confirmed the homogeneous mechanical properties of the coating at the bulk level.
Article
Nanoscience & Nanotechnology
Ashok Meghwal, Surinder Singh, Soumya Sridar, Wei Xiong, Colin Hall, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: A novel high entropy alloy-medium entropy alloy composite coating was designed using a CALPHAD approach, which showed potential for industrial applications. The experimental results demonstrated that the composite coating had higher hardness and superior wear resistance, making it promising for structural applications.
SCRIPTA MATERIALIA
(2023)
Article
Engineering, Environmental
Jingjun Hao, Jiang Xu, Shuang Peng, Shuyun Jiang, Zonghan Xie, Paul R. Munroe
Summary: An innovative Ag nanoparticle/NbC nanocomposite coating was synthesized using a double glow discharge plasma method to mitigate microbiologically influenced corrosion of metallic components serving in marine environments. The incorporation of Ag improved the corrosion resistance of the coating and transformed the electronic structure of the oxide film.
ACS ES&T ENGINEERING
(2022)
Article
Chemistry, Physical
Rumana Akhter, Avi Bendavid, Paul Munroe
Summary: The incorporation of nickel in titanium nitride coatings synthesized by physical vapour deposition can have intriguing effects on the phase composition, microstructure, and mechanical characteristics. Higher nickel concentrations lead to finer equiaxed structures and higher hardness values. Additionally, the density of macroparticles generated during arc deposition is inversely related to the melting temperature of the target material.
APPLIED SURFACE SCIENCE
(2022)