Article
Multidisciplinary Sciences
A. J. Cresswell-Boyes, G. R. Davis, M. Krishnamoorthy, D. Mills, A. H. Barber
Summary: Human teeth can be mechanically replicated using 3D printing to create biomimetic typodont teeth. The mechanical performance of the biomimetic teeth depends on the ratio of material mechanical properties rather than the absolute material properties.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Multidisciplinary
Ce Jiang, Xiaogang Zhang, Peiyuan Lun, Shazim Ali Memon, Qi Luo, Hongfang Sun, Weilun Wang, Xianfeng Wang, Xiaoping Wang
Summary: This study proposes two new indicators, RMPC and CMPC, for quantitatively evaluating reinforcement roughness and concavity, which play an important role in predicting crack volume. Results show that RMPC is more applicable than commonly used morphological indicators for evaluating reinforcement roughness. Dry-wet cycle corrosion produces more severe section roughness and concavity than applied current corrosion, up to about 2.4 times. The introduction of roughness indicators significantly improves the accuracy of crack volume prediction, with R2 value increasing from 0.646 to 0.956. Machine learning prediction models using ensemble learning algorithms demonstrate superior accuracy and stability compared to non-ensemble models.
Article
Materials Science, Multidisciplinary
Chi Zhang, Xin Li, Keli Liu, Guangyuan Tian, Shuo Wang, Junsheng Wang
Summary: X-ray computed microtomography was used to investigate the corrosion process of extruded pure magnesium. The study observed microscopic corrosion morphologies on the extruded pure Mg surface with corrosion time, and examined the effects of grain size and orientation on corrosion rate. It was found that corrosion tends to form on grain boundaries and manifests as dendritic corrosion cracks along the extrusion direction.
Article
Materials Science, Multidisciplinary
Tai-Jan Huang, Sridhar Niverty, Arun Sundar, Nikhilesh Chawla
Summary: Meteorite samples that land on earth provide important information about asteroids and meteors in space. This study used 3D x-ray tomography, scanning electron microscopy, and energy dispersive spectroscopy to analyze the microstructure, elemental composition, and mechanical properties of the Aba Panu meteorite. The results contribute to a comprehensive understanding of the formation history and characteristics of the meteorite.
MATERIALS CHARACTERIZATION
(2023)
Article
Construction & Building Technology
Hongfang Sun, Ce Jiang, Kun Cao, Dong Yu, Wei Liu, Xiaogang Zhang, Feng Xing, Diandian Zhao
Summary: The study monitored the degradation process of reinforced cement paste exposed to different salt solutions, finding that the presence of sulfate ions significantly delayed the onset of chloride-induced corrosion but did not affect the corrosion rate, while chloride ions mitigated damage from sulfate attack. Microtomography (mu CT) provided a new angle to measure interfacial displacement and valuable input for modeling non-uniform chloride-induced corrosion in the presence of sulfate ions.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Christina Charalampidou, Wolfgang Dietzel, Mikhail Zheludkevich, Stavros K. Kourkoulis, Nikolaos D. Alexopoulos
Summary: Experimental investigation on corrosion-induced surface deterioration and mechanical properties degradation of AA2198-T351 was compared to AA2024-T3. Different degradation mechanisms were detected for different exposure times, showing that AA2198-T351 has better corrosion resistance in short exposures, while the two alloys exhibit similar corrosion resistance in long exposures. The fatigue endurance limit of AA2198-T351 is reduced by almost half after 6 hours of corrosion exposure, with delamination between grain layers affecting the Af decrease of AA2024-T3.
Article
Acoustics
Dominik Mierzwa, Justyna Szadzinska, Bartosz Gapinski, Elzbieta Radziejewska-Kubzdela, Roza Bleganskap-Marecik
Summary: Combined vacuum impregnation and ultrasound can improve the infusion of ascorbic acid in berry fruit. Ultrasound application during the relaxation stage contributes to higher ascorbic acid content and antioxidant properties.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Haruto Sugawara, Toshihiro Furuta, Akira Sumiyoshi, Megumi Iiyama, Masaru Kamitani, Aiko Suzuki, Arao Murakami, Osamu Abe, Ichio Aoki, Hiroyuki Akai
Summary: In this study, a CT lymphangiography method was established in mice via direct lymph node puncture. The results showed that the contrast ratios and visual assessment scores of lymph nodes and lymphatic vessels were significantly better in the direct puncture group compared to the CT or MR interstitial injection method.
EUROPEAN RADIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Zedong Wang, Xiaoqi Xi, Lei Li, Zhicun Zhang, Yu Han, Xinguang Wang, Zhaoying Sun, Hongfeng Zhao, Ning Yuan, Huimin Li, Bin Yan, Jiachang Chen
Summary: This study presents a method of simulating bronze disease based on in situ micro-CT imaging to study the characteristics of the oxidative hydrolysis reactions of copper(I) chloride and copper(II) chloride dihydrate. High-resolution reconstruction images were obtained at three key points throughout the experiment. It was found that the reactions showed different characteristics at different stages of the simulation in the micro-CT view. The proposed method provides a new perspective to investigate bronze disease and improve the distinction of real bronze corrosion using micro-CT.
Article
Geochemistry & Geophysics
Nolwenn Le Gall, Fabio Arzilli, Giuseppe La Spina, Margherita Polacci, Biao Cai, Margaret E. Hartley, Nghia T. Vo, Robert C. Atwood, Danilo Di Genova, Sara Nonni, Edward W. Llewellin, Mike R. Burton, Peter D. Lee
Summary: The study investigated the impact of crystallisation kinetics on lava flow behavior by using real-time synchrotron X-ray microtomography to observe the nucleation and growth of clinopyroxene and plagioclase in oxidised, nominally anhydrous basaltic magma. It was found that under continuous cooling, the onset of key transitions in lava hardening occurred within a shorter timeframe, demonstrating the potential of real-time synchrotron X-ray tomography in analyzing the solidification history of basaltic lavas.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Materials Science, Multidisciplinary
J. A. Paula, D. Majuste, N. H. J. Freire, E. M. Mazzer, V. F. C. Lins, V. S. T. Ciminelli
Summary: The presence of fluoride impurity at 20 mg/L in zinc sulfate electrolyte significantly increased the corrosion rate of Al-1050 and Al-1070 alloys used as cathodes in zinc electrowinning. The addition of Al3+ ions to the electrolyte reduced the corrosion rate by about 21% for Al-1050 alloy and about 28% for Al-1070 alloy. This effect was attributed to the formation of AlF2+ and AlF2+ complexes, which decreased the activity of fluoride. Electrochemical impedance spectroscopy confirmed the increased corrosion resistance of Al alloys in the presence of Al3+. Scanning electron microscopy revealed uniform corrosion on the surface of Al, with the degree depending on fluoride concentration. The coarser microstructure of Al-1050 contributed to its higher corrosion resistance in a non-passivating media. The selection of effective complexing agent for fluoride and the subsequent reduction in the corrosion rate of aluminum cathodes are important in the context of increasing co-processing of secondary zinc sources.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Gaku Okuma, Satoshi Tanaka, Fumihiro Wakai
Summary: X-ray microtomography was used to study the microstructure evolution in 3D, revealing the relationship between the topology of pore networks and characteristic length with densification. The increase in characteristic length with decreasing genus in the intermediate stage results in domain coarsening. This coarsening is a natural consequence of pore evolution in viscous sintering, leading to a decrease in total surface area due to topological transformations.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Ziguang Chen, Siavash Jafarzadeh, Jiangming Zhao, Florin Bobaru
Summary: A coupled mechano-chemical peridynamic model is introduced to describe stress-corrosion cracking, considering mechanisms like stress dependent anodic dissolution and diffuse corrosion layer-assisted fracture. The model utilizes diffusion peridynamic bonds and mechanical peridynamic bonds to represent interactions between material points. Experimental validation of the model demonstrates its effectiveness in capturing the stress-corrosion cracking process.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2021)
Article
Chemistry, Physical
Wenjia Du, Zhangxiang Hao, Francesco Iacoviello, Lin Sheng, Shaoliang Guan, Zhenyu Zhang, Daniel J. L. Brett, Feng Ryan Wang, Paul R. Shearing
Summary: Rechargeable Mg/S batteries have the potential for various applications due to their high capacity, energy density, safety, and cost-efficiency, but face technical challenges such as short cycle lifespan and lack of suitable electrolyte. By utilizing multiscale X-ray tomography, the microstructure degradation of Mg/S batteries is studied, revealing the dissolution, agglomeration of sulfur particles, and carbon binder densification after cycles, impacting the cell performance significantly. This study demonstrates the importance of multiscale and multimodal characterization in developing and optimizing the Mg/S electrode design.
Article
Anatomy & Morphology
Sang-Hun Jang, Jiwon Lee, Onseok Lee
Summary: The researchers analyzed radiation images of mouse soleus muscle structure using microtomography and nanotomography techniques, obtaining 3D images of muscle tissue microstructures through phase-contrast X-ray microtomography. Additionally, they examined single muscle fibers using hard X-ray nano-imaging to observe the alignment of myofibrils in muscle fibers.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Review
Materials Science, Multidisciplinary
Lukas Stemper, Matheus A. Tunes, Ramona Tosone, Peter J. Uggowitzer, Stefan Pogatscher
Summary: Commercial aluminum alloys have been optimized for specific applications for almost a century, but new alloy design strategies are needed to overcome limitations in lightweighting concepts. Crossover alloys combine advantageous properties and may see broader industrial application in the near future.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Daniel Landmann, Enea Svaluto-Ferro, Meike V. F. Heinz, Patrik Schmutz, Corsin Battaglia
Summary: Sodium-metal chloride batteries are a sustainable and safe alternative to lithium-ion batteries for large-scale stationary electricity storage, but their rate capability is limited. Metal-ion diffusion in the electrolyte is found to limit the chlorination process of both nickel and iron electrodes, instead of metal-ion migration through the metal chloride conversion layer.
Review
Materials Science, Multidisciplinary
Dierk Raabe, Dirk Ponge, Peter J. Uggowitzer, Moritz Roscher, Mario Paolantonio, Chuanlai Liu, Helmut Antrekowitsch, Ernst Kozeschnik, David Seidmann, Baptiste Gault, Frederic De Geuser, Alexis Deschamps, Christopher Hutchinson, Chunhui Liu, Zhiming Li, Philip Prangnell, Joseph Robson, Pratheek Shanthraj, Samad Vakili, Chad Sinclair, Laure Bourgeois, Stefan Pogatscher
Summary: Aluminum has both positive and negative impacts on sustainability. Recycling aluminum can improve sustainability, while extracting it from ores is energy-intensive. The amount of recyclable aluminum is expected to double by 2050, offering an opportunity for a circular economy. However, the presence of elemental contamination in post-consumer scrap poses challenges for alloy design.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Bernhard Trink, Irmgard Weifssensteiner, Peter J. Uggowitzer, Katharina Strobel, Stefan Pogatscher
Summary: This study investigates the effect of a high volume fraction of Fe-rich intermetallic phases on microstructure evolution and mechanical properties in a cold rolled Al-Mg-Si wrought alloy. The results show that the alloy with almost 10 vol-% Fe-rich intermetallic phase exhibits an unusually attractive combination of strength and ductility, in addition to a substantially increased strain hardening typical of hetero-structured materials, and can facilitate a higher usage of scrap input.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Phillip Dumitraschkewitz, Matheus A. Tunes, Cameron R. Quick, Diego Santa Rosa Coradini, Thomas M. Kremmer, Parthiban Ramasamy, Peter J. Uggowitzer, Stefan Pogatscher
Summary: The solidification behavior of a eutectic AlCu specimen is investigated using in situ scanning transmission electron microscope experiments. By varying the cooling conditions, different rapid solidification morphologies are obtained. Additionally, the spheroidization of lamellas during annealing at elevated temperatures is studied.
Article
Nanoscience & Nanotechnology
Nikolaus P. Papenberg, Aurel Arnoldt, Bernhard Trink, Peter J. Uggowitzer, Stefan Pogatscher
Summary: This study investigates the forging process of a heat-treatable magnesium alloy AXMZ1000 for a piston rod. The microstructural evolution and mechanical properties of two different stock materials, cast and extruded, are compared and analyzed. The results show that comparable microstructures are obtained with both starting materials, and the mechanical properties achieved with extruded feedstock are slightly better.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
William A. Lackington, Peter Schweizer, Mariya Khokhlova, Claudia Cancellieri, Stefanie Guimond, Anne-Lise Chopard-Lallier, Joelle Hofstetter, Patrik Schmutz, Xavier Maeder, Markus Rottmar
Summary: In modern oral maxillofacial surgery, long-term stability of implants is closely related to the quality of osseointegration. This study investigates the influence of femtosecond laser-texturing on physicochemical properties, blood-implant interactions, and osseointegration potential of titanium-aluminium-vanadium (TiAlV) implant surfaces. Laser-texturing enables the production of designer surfaces with defined micro-scale features, showing comparable biological performance to state-of-the-art implants.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Multidisciplinary Sciences
Nikolaus Papenberg, Thomas Hatzenbichler, Florian Grabner, Peter J. Uggowitzer, Stefan Pogatscher
Summary: Weight reduction is significant in transportation industries as it affects fuel consumption and vehicle range. Different materials are commonly used to take advantage of specific properties, with aluminum alloys used in both cast and wrought states. However, magnesium alloys, which are lighter, are only used in castings. Despite progress in scientific research on magnesium wrought alloys, their industrial implementation is limited, resulting in a lack of safety and structural applications. To promote industrial application and acceptance of these materials, the forging process of an automotive control arm was investigated. By using an age-hardenable Mg-Al-Ca-Zn-Mn lean alloy, which can be processed similarly to AL alloys, the study provides information on forming characteristics and challenges.
SN APPLIED SCIENCES
(2023)
Article
Engineering, Environmental
Roberto Cestaro, Laetitia Philippe, Albert Serra, Elvira Gomez, Patrik Schmutz
Summary: In this study, electrodeposited manganese oxides (MnyOx) films were used as a visible-light-driven photocatalyst for the removal and mineralization of Tetracycline (TC) antibiotics. The best performing manganese oxide showed 92.4% TC mineralization efficiency after 180 min of LED visible illumination. Hydroxyl radicals (center dot OH) were found to be the main active species responsible for the TC degradation. The degradation of the oxide surface structure was identified as the key factor limiting the photocatalytic activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Milad Roostaei, Peter J. Uggowitzer, Reinhard Pippan, Oliver Renk
Summary: The attractive properties of Mg-bcc nanocomposites have gained increasing interest, but bulk fabrication has been unsuccessful due to strain localization within the Mg-phase. Through high-pressure torsion, the deformation behavior and resulting microstructures of Mg-Fe composites were analyzed at different applied strains and processing temperatures. Surprisingly, processing at 73% of Mg's melting point accelerated microstructural refinement and improved homogeneity, leading to a three-fold increase in hardness compared to ambient processing. This suggests that further optimization could potentially create Mg-based materials with strength beyond a gigapascal.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Sebastian Samberger, Irmgard Weissensteiner, Lukas Stemper, Christina Kainz, Peter J. Uggowitzer, Stefan Pogatscher
Summary: This study presents age-hardenable, fine-grained AlMgZnCu crossover alloys intended for superplastic and quick plastic forming processes. These alloys utilize T-phase (Mg32(Al,Zn)49) to refine the grain structure and increase age-hardening. The study demonstrates the importance of particle stimulated nucleation (PSN) using T-phase particles, which leads to a fine grain size as low as 4 μm. The resulting alloys have excellent high-temperature forming properties and high stability.
Article
Materials Science, Multidisciplinary
Bernhard Trink, Irmgard Weissensteiner, Peter J. Uggowitzer, Katharina Strobel, Anna Hofer-Roblyek, Stefan Pogatscher
Summary: This study introduces new alloys that combine the age-hardening capability of Al-Mg-Si alloys with the microstructure-controlling effect on processing of primary Fe-rich intermetallic phases used in foil stock. Processing and microstructure-property relations in new crossover aluminum alloys derived from 6xxx and 8xxx foil stock alloys are shown. The study demonstrates the attractive combinations of strength and ductility achieved in these new alloys.
Article
Biochemical Research Methods
Diego S. R. Coradini, Matheus A. Tunes, Patrick Willenshofer, Sebastian Samberger, Thomas Kremmer, Phillip Dumitraschkewitz, Peter J. Uggowitzer, Stefan Pogatscher
Summary: The present study demonstrates a methodology for in situ investigation of nanoalloying using metallic nanomaterials as reactants within a transmission electron microscope. The method can be used as a starting point for studying nanometallurgy and subsequent alloying of materials. The results showed that both Au and Cu nanomaterials could alloy with Al when melted in the transmission electron microscope. Overall, these results suggest that transmission electron microscope-based in situ melting and alloying is a valuable technique for studying the metallurgical processing of nanomaterials.
Article
Materials Science, Multidisciplinary
Philip Aster, Phillip Dumitraschkewitz, Peter J. Uggowitzer, Florian Schmid, Georg Falkinger, Katharina Strobel, Peter Kutlesa, Michael Tkadletz, Stefan Pogatscher
Summary: This study investigated the formation of solute clusters and their contribution to strain hardening in aluminum alloys by using APT and tensile testing. The results showed that clusters could form during plastic deformation, which was referred to as strain-induced clustering.
Article
Materials Science, Multidisciplinary
Oliver Renk, Irmgard Weissensteiner, Martina Cihova, Eva-Maria Steyskal, Nicole G. Sommer, Michael Tkadletz, Stefan Pogatscher, Patrik Schmutz, Jurgen Eckert, Peter J. Uggowitzer, Reinhard Pippan, Annelie M. Weinberg
Summary: The widespread use of magnesium is hindered by its low strength and poor corrosion resistance. However, the use of nanoscale composite architecture design can overcome these limitations and enable the development of high-strength magnesium-iron composites with low degradation rates.
NPJ MATERIALS DEGRADATION
(2022)
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.
