Article
Nanoscience & Nanotechnology
Lunchao Zhang, Yuan Yuan, Jun Wang, Tao Chen, Jingfeng Wang, Fusheng Pan
Summary: High temperature heat treatment Mg-0.69Sn-0.69Y alloy exhibited a high damping capacity (0.201 at epsilon=1 x 10-3) and a very low critical strain amplitude at room temperature (epsilon cr1=2.97 x 10-5), which can be ascribed to the combined effects of purified matrix phase and subgrain interfaces. The substructure is unstable and the damping capacity decreases with temperature increment.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Applied
Rui Liu, Qian Yao, Li Liu, Fandi Meng, Fuhui Wang
Summary: The corrosion resistance of acid-doped polyaniline/epoxy coating on AZ91D has been investigated. The doped polyaniline facilitates the formation of oxide films on the Mg substrate, resulting in a double-layer structure. These oxide layers contribute to the pronounced corrosion resistance of the coating/Mg system.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
Iwona Bednarczyk, Dariusz Kuc
Summary: This article investigates the influence of extrusion methods on the microstructure and mechanical properties of WE43 magnesium alloy. Different deformation methods were applied to determine their effects on the alloy's structure and properties. The study shows that the KoBo method enables superplastic flow and microstructure refinement. These findings are significant for the development of forming technology for lightweight construction elements.
Article
Nanoscience & Nanotechnology
Shuhui Lv, Qiang Yang, Xiaoling Lv, Fanzhi Meng, Xin Qiu
Summary: Intermetallic phases in Mg-8Zn-6Al-1Sm alloys in both as-cast and peak-aged conditions were investigated. The study identified various intermetallic phases, such as Mg44Al15Zn41, Mg5Zn2Al2, Mg-32(Al,Zn)(49), and Al2Sm. Aging treatment showed a possible phase transformation and revealed precipitate constituents, including i phase, MgZnAl cubic phase, MgZn2 phase, Mg4Zn7 phase, and aperiodic structures. The study also found multiple orientation relationships between precipitates and the Mg matrix, and observed ordering planar faults in MgZn2 precipitates. The calculations demonstrated the superior strengthening effect of Mg-Zn-Al precipitates and attributed the high strength of the alloy to semi-continuous intermetallic skeletons and Mg-Zn-Al precipitates.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Duo Wang, Peng Zhou, Yi Zhang, Tao Zhang, Fuhui Wang
Summary: A new designing idea was proposed for the high corrosion-resistance magnesium (HCR Mg) alloy based on the dissolution-ionization-diffusion-deposition (DIDD) model. HCR Mg alloy consists of low-alloying element (LA) and micro-alloying element (MA), characterized as Mg-LA-MA alloying system. The designed HCR Mg alloy (Mg-3Nd-1Gd-0.6In) showed superior corrosion resistance (near AA2024 alloy) and good mechanical performance (UTS, 259.30 ± 0.27 MPa). Overall, a universal way for designing new alloy systems with superior corrosion resistance was proposed, promising for future applications.
Article
Materials Science, Multidisciplinary
Saumyadeep Jana, Matt Olszta, Danny Edwards, Mark Engelhard, Avik Samanta, Hongtao Ding, Pratik Murkute, O. Burkan Isgor, Aashish Rohatgi
Summary: Laser surface processing improved the corrosion resistance of AZ31 alloy by forming a mixed metal oxide surface film and refining the size and number density of intermetallic particles.
Article
Chemistry, Physical
Shuhui Lv, Zefeng Xie, Qiang Yang, Fanzhi Meng, Xin Qiu
Summary: The microstructural evolution and mechanical properties of a Mg-8Zn-6Al-1Gd (wt%) alloy were thoroughly investigated in this study. The dominant intermetallic phases in the as-cast sample were identified as phi-Al2Mg5Zn2, tau-Mg-32(Al,Zn)(49), i-Mg44Al15Zn41, and Al2Gd phases. After extrusion, the sample exhibited a fully recrystallized microstructure with an average grain size of around 1.5 μm and a weak rare earth texture. Furthermore, fine particles, primarily quasicrystal phase (i-phase), were homogeneously dispersed in the fine-grained structure, regardless of their distribution at grain boundaries or inside grains. The as-extruded sample demonstrated a good strength-ductility balance in both tension and compression, along with a slight reverse tension/compression asymmetry. Microstructural observations revealed that the excellent mechanical performance of the studied alloy could be attributed to its fine grains, weak RE texture, and numerous homogeneously distributed fine particles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Emad H. Bartawi, Oleg V. Mishin, Ghada Shaban, Jan H. Nordlien, Rajan Ambat
Summary: The microstructure and intergranular corrosion were studied in an extruded and aged Al-Mg-Si alloy doped with 0.05 wt% Cu after immersion in an acidified salt solution. Despite the low content of Cu, intergranular corrosion still occurs in this alloy. Electron microscopy analysis of the exposed surface in the corrosive environment does not show any significant difference in the fraction of corroded random and coincident site lattice high angle boundaries. Low angle boundaries with misorientations below 10 degrees are consistently found to be more resistant to intergranular corrosion than other boundary types.
Article
Metallurgy & Metallurgical Engineering
Fanzhi Meng, Shuhui Lv, Qiang Yang, Xin Qiu, Zixiang Yan, Qian Duan, Jian Meng
Summary: This study investigated the components and crystal structures of intermetallic phases in a gravity die-cast Mg-6.0Zn-1.5Nd-0.5Zr alloy using transmission electron microscopy. The results revealed multiple intermetallic phases and various internal faults in the alloy. The study also revealed new orientation relationships between different intermetallic phases.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Nanoscience & Nanotechnology
Mengning Xu, Na Li, Xuechao Sha, Yi Liu, Bo Gao, Lirong Xiao, Xuefei Chen, Hao Zhou
Summary: This study reports in-situ transmission electron microscopy observations on the interaction between dislocations and beta' phases in aged Mg-Gd alloys. It was found that the slipping < a > dislocations are squashed into the interface and bow out to bypass the beta' phase, resulting in a zigzag route of plastic flow. The Orowan mechanism is determined as the main strengthening mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Rui Ma, Shuhui Lv, Zefeng Xie, Qiang Yang, Zixiang Yan, Fanzhi Meng, Xin Qiu
Summary: The study extensively investigated the effects of 0.5 wt% La addition on a traditional hot-extruded Mg-9Gd-3Y-0.5Zr alloy, finding that the addition of minor La significantly improved the mechanical performance of the alloy at room temperature mainly through grain-refinement strengthening mechanism.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Y. Zhang, J. Y. Dai, L. Zhao, L. P. Wu
Summary: In this study, a KMgF3 film coated AZ31 magnesium alloy was successfully prepared, which exhibited improved corrosion resistance and biocompatibility. Surface morphology observations and performance testing results showed that the KMgF3 film coated alloy had a 68% reduction in hydrogen evolution and an approximately 49 times higher corrosion current density compared to the uncoated alloy. Additionally, the KMgF3 film demonstrated better durability in simulated body fluid and enhanced the proliferation of bone marrow mesenchymal stem cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Shuhui Lv, Qiang Yang, Xiaoling Lv, Fanzhi Meng, Xin Qiu
Summary: A ZK60 alloy was prepared by conventional direct extrusion at a reduced temperature, resulting in finer DRXed grains with stronger fiber texture and more abundant lath-like sub-grains. After aging, nanosized precipitates formed in both DRXed and non-recrystallized grains, while coarse MgZn2 particles precipitated on sub-grain boundaries. The aged ZK60 alloy exhibited significantly high ultimate compressive strength, excellent strength-ductility balance, and a weakened tension-compression yield strength asymmetry.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Nan Wang, Qiang Yang, Xinlin Li, Kai Guan, Jingqi Zhang, Caogen Yao, Xuhu Zhang, Jian Meng, Xin Qiu
Summary: The microstructural evolution and mechanical properties of a Y-rich misch metal modified Mg-9Gd-3Y-0.6Zn-0.4Zr alloy were studied, revealing that the as-extruded and peak-aged alloys exhibit excellent yield strength at room temperature and 250 degrees C, with grain boundary strengthening and precipitation strengthening identified as the dominant mechanisms.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Metallurgy & Metallurgical Engineering
Zhiwei Du, Yonggang Peng, Hang Teng, Zhong Cao, Kui Zhang, Minglong Ma, Xiaolei Han, Ting Li, Cong Che, Yongjun Li
Summary: Crystal structures, growth characteristics, and transformation of the precipitates in a Mg-7Gd-5Y-1Nd-2Zn-0.5Zr (wt.%) alloy aged at 200 degrees C were investigated. The study revealed the formation and development of solute clusters and various precipitates during aging, providing valuable insights into the aging behavior and performance of the alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Mohsen Danaie, Helmut Fritzsche, W. Peter Kalisvaart, XueHai Tan, David Mitlin, Gianluigi A. Botton, Jacques Huot
Article
Materials Science, Multidisciplinary
Z. P. Cano, M. Danaie, J. R. Kish, J. R. McDermid, G. A. Botton, G. Williams
Article
Electrochemistry
Ushula M. Tefashe, Philippe Dauphin-Ducharme, Mohsen Danaie, Zachary P. Cano, Joseph R. Kish, Gianluigi A. Botton, Janine Mauzeroll
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2015)
Article
Materials Science, Multidisciplinary
Z. P. Cano, M. Danaie, J. R. Kish, J. R. McDermid, G. A. Botton, G. Williams
Article
Materials Science, Multidisciplinary
P. Kontis, H. A. Mohd Yusof, S. Pedrazzini, M. Danaie, K. L. Moore, P. A. J. Bagot, M. P. Moody, C. R. M. Grovenor, R. C. Reed
Article
Chemistry, Multidisciplinary
Gang Seob Jung, Shanshan Wang, Zhao Qin, Si Zhou, Mohsen Danaie, Angus I. Kirkland, Markus J. Buehler, Jamie H. Warner
Article
Chemistry, Physical
Q. Yang, M. Danaie, N. Young, V. Broadley, D. E. Joyce, T. L. Martin, E. Marceau, M. P. Moody, P. A. J. Bagot
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Physical
Haohong Duan, Jin-Cheng Liu, Ming Xu, Yufei Zhao, Xue-Lu Ma, Juncai Dong, Xusheng Zheng, Jianwei Zheng, Christopher S. Allen, Mohsen Danaie, Yung-Kang Peng, Titipong Issariyakul, Dongliang Chen, Angus Kirkland, Jean-Charles Buffet, Jun Li, Shik Chi Edman Tsang, Dermot O'Hare
Article
Chemistry, Physical
Victor M. Burlakov, Yasser Hassan, Mohsen Danaie, Henry J. Snaith, Alain Goriely
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Liqun Kang, Bolun Wang, Adam Thetford, Ke Wu, Mohsen Danaie, Qian He, Emma K. Gibson, Ling-Dong Sun, Hiroyuki Asakura, C. Richard A. Catlow, Feng Ryan Wang
Summary: The study reports an air-stable surface [bipy-Ru-II(CO)(2)Cl-2] site capable of oxidizing CO, demonstrating practical control over geometric and electronic structures of single-site catalysts at the molecular level.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Tiarnan A. S. Doherty, Satyawan Nagane, Dominik J. Kubicki, Young-Kwang Jung, Duncan N. Johnstone, Affan N. Iqbal, Dengyang Guo, Kyle Frohna, Mohsen Danaie, Elizabeth M. Tennyson, Stuart Macpherson, Anna Abfalterer, Miguel Anaya, Yu-Hsien Chiang, Phillip Crout, Francesco Simone Ruggeri, Sean Collins, Clare P. Grey, Aron Walsh, Paul A. Midgley, Samuel D. Stranks
Summary: This study successfully introduced octahedral tilting into pure alpha-FAPbI(3) thin films by using surface-bound ethylenediaminetetraacetic acid, ensuring extremely stability against thermal, environmental, and light stressors.
Article
Physics, Applied
C. S. Allen, M. Danaie, J. H. Warner, D. J. Batey, A. I. Kirkland
Summary: We demonstrate that electron ptychographic phase reconstruction can recover spatial frequencies higher than those directly recorded in the experimental electron diffraction patterns. This allows for the simultaneous recording of a conventional annular dark field image and a ptychographic dataset by inserting an annular detector that partially shadows a lower pixelated detector. We achieved an Abbe limited resolution of 1.2 +/- 0.1A degrees in our reconstructions of monolayer molybdenum disulfide at 30 keV.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
A. Bridger, W. I. F. David, T. J. Wood, M. Danaie, K. T. Butler
Summary: Characterisation of structure at the nanometre scale is achieved by means of SEND, which connects the local atomic environment and macro-scale. SEND is versatile and tolerant of specimen thickness, allowing for statistically representative probing of microstructure. This paper presents a data-driven approach that utilizes a Variational AutoEncoder and clustering techniques to produce domain maps, independent of domain crystallinity and prior crystal structure knowledge.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Rebecca J. Nicholls, Sofia Diaz-Moreno, William Iliffe, Yatir Linden, Tayebeh Mousavi, Matteo Aramini, Mohsen Danaie, Chris R. M. Grovenor, Susannah C. Speller
Summary: This study reveals the effects of fast neutrons on high-temperature superconductors and the defects introduced by ion irradiation, which is important for the application of fusion reactors.
COMMUNICATIONS MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Samya Banerjee, Andreas Omlor, Juliusz A. Wolny, Yisong Han, Frederik Lermyte, Amy E. Godfrey, Peter B. O'Connor, Volker Schuenemann, Mohsen Danaie, Peter J. Sadler
DALTON TRANSACTIONS
(2019)
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.
