Article
Nanoscience & Nanotechnology
Liman Chen, Yang Yang, Guixiang Wang, Yanli Wang, Simon Ochieng Adede, Meng Zhang, Caishan Jiao, Di Wang, Dashuai Yan, Yibo Liu, Duanjie Chen, Weibing Wang
Summary: A three-layered film was fabricated on magnesium alloy via electroplating to guard against corrosion in a chloride aqueous environment. The film structure was systematically studied for its corrosion protection and structural properties, showing that the Zn/Cu/Al-Zr coatings provided reliable corrosion protection to the magnesium alloy.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Yujie Yang, Jianbin Zhou, Linlin Wang, Zheng Jiao, Meiyi Xiao, Qiu-An Huang, Minmin Liu, Qinsi Shao, Xueliang Sun, Jiujun Zhang
Summary: This paper comprehensively reviews the research progress of PB/PBAs-based cathode materials of metal-ion batteries, including synthesis methods, structural characteristics, electrochemical performance, and applications. The technical challenges are also analyzed, and future research directions are proposed.
Article
Materials Science, Coatings & Films
Yan Qi, Wenping Liang, Qiang Miao, Hao Lin, Hao An, Yangyang Liu, Shiwei Zuo, Hairui Ma
Summary: The study demonstrated that the Cu-Zn-Al/Zn-Al coating on Q235 steel exhibits good corrosion resistance, with corrosion products transitioning from zinc-containing to aluminum-containing. The impedance resistance decreases with increasing exposure time before gradually rising, and the copper leaching remains stable at a value that inhibits algae and has a significant lethal effect.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Q. Yang, D. L. Cheng, F. G. Zhang, Q. W. Shi, Z. Chen, M. L. Wang, S. Y. Zhong, Y. Wu, H. W. Wang
Summary: The study on spark plasma sintering of atomized Al-Zn-Mg-Cu alloy powders and TiB2/Al-Zn-Mg-Cu composite powders reveals the dual effect of TiB2 particles on densification mechanisms and microstructural evolutions, accelerating the sintering process initially but also adversely affecting it due to solute element segregation.
MATERIALS CHARACTERIZATION
(2021)
Review
Chemistry, Multidisciplinary
Joseph M. Parr, Mark R. Crimmin
Summary: This review describes examples of carbon-carbon bond activation reactions at Mg, Al, and Zn. Different mechanisms for C-C bond activation at these metals, including α-alkyl elimination, β-alkyl elimination, oxidative addition, and electrocyclic reaction, have been proposed. Most reactions involve initial installation of the metal on a hydrocarbon scaffold followed by α-alkyl or β-alkyl elimination, rather than direct oxidative addition of C-C bonds. The emerging applications of Mg, Al, and Zn complexes as catalysts for C-C bond functionalization are also discussed.
Article
Chemistry, Physical
P. Emadi, B. Andilab, K. Borodianskiy, C. Ravindran
Summary: The use of lightweight alloys, such as magnesium, is crucial for improving fuel efficiency and reducing emissions in automobiles, as well as increasing the range of electric vehicles. This study investigated the effects of SiC nanoparticles on the microstructure and mechanical properties of Mg-Al-Zn-Mn alloy composites. The addition of SiC resulted in significant grain refinement, more uniform phase dispersion, and improved tensile strength, making it a promising material for strengthening light alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Hyo-Sun Jang, Donghyuk Seol, Byeong-Joo Lee
Summary: The study developed interatomic potentials for Al-Ca, Al-Zn, Mg-Al-Ca, and Mg-Al-Zn systems to investigate the effects of these elements on the deformation and recrystallization behaviors of Mg alloys. The developed potentials accurately describe the structural, elastic, and thermodynamic properties of compounds and solutions in associated alloy systems, demonstrating reasonable agreement with experimental data and higher-level calculations. The applicability of these potentials was confirmed through calculations of various mechanical properties and segregation energy on twin boundaries, validating their use in the investigation.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Nanoscience & Nanotechnology
Devarajan Nagarajan
Summary: The area fraction and number density of twins were measured in various magnesium alloys under different tensile strains. The results showed that twinning occurred rapidly in pure magnesium, gradually in magnesium-zinc alloys, and an intermediate behavior in magnesium-aluminum alloys. In the more dilute magnesium-aluminum alloys, the area fraction and number density decreased with concentration, but increased again for 9% aluminum, surpassing that of pure magnesium at high strains. In magnesium-zinc alloys, both parameters decreased monotonically with increasing zinc concentration up to the solubility limit. Additionally, the number density increased as the grain size decreased in all three materials. It was suggested that the availability of nucleating sites created by microplasticity and the increased specific grain boundary area contributed to the increased number density.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Yan Zou, Xiaodong Wu, Songbai Tang, Qianqian Zhu, Hui Song, Mingxing Guo, Lingfei Cao
Summary: The study investigated the effects of Zn/Mg ratios on the microstructure and mechanical properties of Al-Zn-Mg-Cu alloys aged at 150 degrees C. It was found that an increase in Zn/Mg ratios significantly accelerates the aging process, with the co-existence of T' phase and eta' phase beneficial to the high strength of the alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
A. Lervik, E. Thronsen, J. Friis, C. D. Marioara, S. Wenner, A. Bendo, K. Matsuda, R. Holmestad, S. J. Andersen
Summary: Scanning transmission electron microscopy imaging of Al-Zn-Mg alloys at low temperatures has revealed the atomic structures of solute-rich clusters, characterized by a unique unit with high Zn/Mg ratio. The arrangement of these basic units to form larger clusters is described by Frank-Kasper structures, supported by density functional theory calculations, atom probe tomography, and simulated diffraction patterns. These results provide new insight into the early stages of age-hardening in aluminum alloys.
Article
Chemistry, Physical
Hyo-Sun Jang, Donghyuk Seol, Byeong-Joo Lee
Summary: This study investigates the effect of alloying elements on the recrystallization behavior of magnesium alloys. It is found that grain boundary segregation and solute clustering in solid solutions can affect grain boundary migration, leading to changes in recrystallization behavior. Solute clusters in Mg-Zn-Ca alloys have a stronger dragging effect on grain boundaries compared to Mg-Al-Zn alloys, providing another explanation for the changes in recrystallization behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yuqiao Zhao, Teng Tian, Hailong Jia, Pinkui Ma, Zhizheng Yang, Jin Xu, Min Zha, Huiyuan Wang
Summary: The effects of Mg/Zn ratio and pre-aging process on the microstructure and mechanical properties of Al-Mg-Zn-Cu alloys were systematically investigated. The results show that reducing the Mg/Zn ratio increases the density of precipitates and enhances the aging response. Two-step aging process leads to higher yield strength due to smaller size and higher density of precipitates.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yong Li, Yin Wang, Bing Lu, Wei Yu, Haiyao Wang, Guangming Xu, Zhaodong Wang
Summary: Al-Zn-Mg-Cu alloys were prepared using water-cooled copper casting and characterized by various microstructural analysis techniques. The study demonstrated that increased Cu content enhanced solid solution strengthening and precipitation strengthening, while higher Zn/Mg ratio decreased precipitation strengthening and resulted in decreased strength but increased plasticity of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Crystallography
Sahriah Basri, Mohd Ezhar Zulkifli, Nurul Shahzira Hazri, Siti Kartom Kamarudin
Summary: Magnesium is an important element with beneficial properties and advantages, but it also has disadvantages such as high corrosion rate. This study analyzed the characteristics and quantum behavior of magnesium alloys, including band structure, molecular orbital, and corrosion behavior. The results showed changes in electron density and stability of Mg alloys, and the corrosion analysis indicated that Mg-Al-Zn has the highest activation energy.
Article
Materials Science, Coatings & Films
Shiyuan Wang, Tong Guo, Gang Xu, Feng Ding
Summary: The corrosion behavior of Zn-Al-Mg pseudo-alloy coatings was studied, revealing the significant influence of Zn content on corrosion mechanism, kinetics, pathway, and products. Selective dissolution was observed due to phase segregation caused by multigalvanic systems. Improved corrosion resistance was observed in both coatings due to the barrier effect of Al-Mg splats and sacrificial protection provided by Zn-rich splats.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
