Article
Chemistry, Physical
Galina Redkina, Alexandra S. Sergienko, Yurii Kuznetsov, Oleg Yu Grafov
Summary: This study investigates the composition, structure, protective, and hydrophobic properties of nanoscale films formed layer-by-layer on zinc surfaces using solutions of sodium dodecylphosphonate (SDDP) and vinyltrimethoxysilane or n-octyltriethoxysilane (OTES). The results show that the protective and hydrophobic properties of the films are influenced by the initial surface morphology, composition of the surface oxide layer, and the nature of inhibitors. Laser texturing of the zinc surface is found to be more effective in enhancing the anticorrosive properties of the films compared to chemical etching. The films formed on zinc surfaces with fractal morphology during layer-by-layer passivation with SDDP and OTES exhibit excellent superhydrophobic and protective properties in high humidity and salt spray atmospheres.
Article
Materials Science, Multidisciplinary
Shiyu Huang, Wei Wu, Yanjing Su, Lijie Qiao, Yu Yan
Summary: Zn is considered a promising degradable biomaterial, but concerns exist due to unclear degradation mechanism in physiological solutions. The corrosion product film displayed a laminated structure with complex layers, and localized corrosion initiated at grain boundaries affecting degradation rate.
Article
Materials Science, Multidisciplinary
Xuankai Wang, Hui Su, Yi Xie, Jun Wang, Chao Feng, Dengke Li, Tangqing Wu
Summary: In this study, the corrosion behavior and mechanism of H62 brass and T2 copper in an urban atmosphere were investigated. Copper mainly forms Cu2O and CuO as corrosion products, with the presence of a small amount of Cu2Cl(OH)3. Brass shows additional Zn-containing compounds, such as ZnCl, ZnO, and ZnS, in its corrosion product. The corrosion rate of brass decreases with time, while that of copper initially increases and then decreases after 12 months. Brass exhibits better corrosion resistance than copper in the urban atmosphere. The results of this study provide scientific data support for material selection and life prediction of equipment used in urban environments.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Yuwei Liu, Guocai Yu, Gongwang Cao, Chuang Wang, Zhenyao Wang
Summary: The study investigated the corrosion products formed on tin-bronze exposed to industry atmosphere for 29 years. The corrosion rate of tin-bronze was found to be 0.56 μm·a(-1). It was observed that tin-bronze had two different structures on the exposure sides, with an uneven and cracked corrosion product layer on the skyward side, and a double-layer structure with a dense inner layer and porous outer layer on the fieldward side. Sn distribution in the corrosion product layer was uniform on the skyward side and concentrated near the substrate on the fieldward side.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Environmental
N. A. Polyakov, I. G. Botryakova, V. G. Glukhov, G. V. Red'kina, Yu. I. Kuznetsov
Summary: The study found that superhydrophobic zinc coatings can be formed by depositing zinc in a sulfate-acetate solution and treating with stearic acid, optimizing the electrodeposition conditions to maintain superhydrophobic properties under salt spray conditions, and enhancing superhydrophobic properties with ultrasonic treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Archaeology
Denis Prokuratov, Andrey Samokhvalov, Dmitry Pankin, Oleg Vereshchagin, Nikolai Kurganov, Anastasia Povolotckaia, Alexander Shimko, Alexandra Mikhailova, Roman Balmashnov, Olga Smolyanskaya, Dmitrii Redka, Toms Salgals, Vjaceslavs Bobrovs
Summary: In this study, lasers with pulse durations ranging from microseconds to femtoseconds were employed to clean zinc heritage objects from atmospheric corrosion deposits. Wavelengths of 355, 532, 800, and 1064 nm were tested. Surface characterization was carried out using Raman spectroscopy, scanning electron microscopy, X-ray diffraction, and optical microscopy. The results showed that there was no self-limiting cleaning effect for all lasers tested, and the melting threshold of the metal was lower than the threshold for complete removal of corrosion. Among the lasers used, the femtosecond laser with a pulse duration of 100 fs induced the least surface melting. The yellowing of corrosion layers due to temperature modification of zincite was observed with irradiation from all lasers used.
JOURNAL OF CULTURAL HERITAGE
(2023)
Article
Materials Science, Multidisciplinary
Yue Gan, Bochuan Tan, Qin Hu, Shengtao Zhang, Wenpo Li
Summary: In this study, a novel organic compound BD is found to be an effective inhibitor for zinc corrosion and dendrite formation. The inhibition mechanism of BD on zinc corrosion is investigated through various experimental methods, and it is found that BD exhibits excellent inhibition efficiency. Furthermore, BD also shows the ability to prolong the service life of zinc-ion batteries.
Article
Engineering, Mechanical
Xuankai Wang, Yi Xie, Chao Feng, Zhimin Ding, Dengke Li, Xiaobao Zhou, Tangqing Wu
Summary: By comparing the microstructure and atmospheric corrosion of tin coatings on H62 brass and T2 copper, it was found that the tin coating on brass had more inclusions and higher local corrosion sensitivity. The local corrosion sensitivity and R value of the tin coatings on both copper and brass were higher on the skyward surface than on the earthward surface. The preferential corrosion of (101) oriented crystal particles was the main reason for the higher corrosion sensitivity of the tin coatings, and preferential wetting, suspended particles, and rainwater scouring also influenced the corrosion process of the tin coating.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Chemistry, Physical
Olga A. Goncharova, Andrey Yu. Luchkin, Nickolay N. Andreev, Oleg Yu. Grafov, Olga S. Makarova, Ilya A. Kuznetsov, Sergey S. Vesely
Summary: Chamber protection is a promising and rapidly developing method to protect metals against atmospheric corrosion by using inhibitors in vapor phase. The study demonstrated that chamber treatment with 2-ethylhexanoic acid (EHA) effectively prevents the initiation of zinc corrosion. The optimal conditions for zinc treatment with EHA vapors were determined, resulting in the formation of adsorption films up to 100 nm thick on the metal surface. These films showed enhanced protective properties during the first day of exposure to air after chamber treatment, due to the shielding effect and inhibition of corrosion processes on the active surface of the metal. The corrosion inhibition was attributed to EHA's ability to convert zinc to a passive state and inhibit local anionic depassivation.
Article
Chemistry, Physical
Matjaz Finsgar, Dusko Cakara
Summary: This work presents the surface analytical characterization of the corrosion inhibitor MBTH for zinc, including the determination of its parent ion signal, investigation of the surface layer properties, and revelation of the growth mechanism of the adsorbates.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Akif Soltan, Matthew S. Dargusch, Zhiming Shi, Darren Gerrard, Andrej Atrens
Summary: The study showed that LPS 3 and AMLGuard corrosion inhibitors significantly reduced the corrosion rates of magnesium alloys, with AMLGuard being the most effective. In contrast, Ardrox 3961 and LPS 2 were found to be ineffective, likely due to the lack of protective barrier films formed by chemical adsorption.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2021)
Article
Materials Science, Multidisciplinary
Linyan Zhang, Hongyun Luo, Yuhao Jiang
Summary: The effect of UV light illumination on the corrosion behavior of AA6061-T6 in an alkaline snowmelt-agent solution was investigated. Under UV light illumination, the corrosion process was facilitated and larger corrosion pits were formed due to the dissolution of AlFeSi intermetallics and fewer oxide formations. After exposure for 4 weeks, the formation of more compact passive films suppressed corrosion.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Elham Soroush, Ali Davarpanah, Motahhare Keramatinia, Nazanin Nouri, Bahram Ramezanzadeh
Summary: The study investigates the corrosion resistance of zinc phosphate conversion coatings on steel with functionalized graphene oxide (fGO) and Mn2+ cations, as well as polyester coatings. The results show improved corrosion resistance, especially with the use of fGO and Mn2+. The study highlights the potential of incorporating nanomaterials and phosphating treatments to enhance the corrosion resistance of steel.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Electrochemistry
Svenja Valet, Andreas Burkert, Gino Ebell, Martin Babutzka
Summary: Zinc and zinc coatings have been widely used for corrosion protection for decades, but new coatings are constantly being developed; electrochemical measurements provide an efficient and effective alternative; gel electrolytes offer a minimally invasive and reliable method for characterizing the corrosion protectiveness of new coatings.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Ceramics
M. Beltran, N. Schibille, B. Gratuze, O. Vallcorba, J. Bonet, T. Pradell
Summary: The study examines the materials, painting techniques, and conservation state of the enamelled stain glass of the Catalan Modernist workshops in Barcelona. These glasses are known for their creativity and artistic value, utilizing various textures, flashes, colors, and enamels. While corrosion is mainly caused by humidity, pollutants, and solar irradiation, the microstructure of the enamels also plays a role in their stability.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Mahdi Hajimohammadi, Naeleh Azizi, Sajjad Tollabimazraeno, Ali Tuna, Jiri Duchoslav, Guenther Knoer
Summary: The development of a simple and sustainable oxygen-dependent route for oxidizing various aromatic and aliphatic aldehydes to carboxylic acids at room temperature under visible light and sunlight irradiation has been reported. The process is mediated by cobalt phthalocyanine tetrasulfonic acid supported on reduced graphene oxide, resulting in high conversion rates and selectivity of the products.
Article
Chemistry, Applied
Stefan Breitenbach, Christoph Unterweger, Alexander Lumetzberger, Jiri Duchoslav, David Stifter, Achim Walter Hassel, Christian Fuerst
Summary: The study investigated the production of porous carbon fibers from viscose fibers, exploring the effects of final carbonization temperature and heating rate on carbon yield and specific surface area. Despite contrary effects, porous carbon fibers with a yield of 21.2% and a specific surface area of 175 m² g⁻¹ were successfully produced. The fibers were characterized by SEM, FTIR, Raman spectroscopy, XRD and CHNS analysis.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Chemistry, Physical
Jiri Duchoslav, Alexander Lumetzberger, Daniel Leidlmair, Matthias Kehrer, Gary Saeckl, Stefan Breitenbach, Christoph Unterweger, Christian Fuerst, David Stifter
Summary: An efficient vapour phase method has been developed for the conversion of surface OH groups into trimethylsilyl ether ones at room temperature, with high reaction yield and short treatment time. The method exhibits good selectivity towards hydroxyl groups and can potentially be applied in surface chemical analysis.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Stefan Breitenbach, Jiri Duchoslav, Andrei Ionut Mardare, Christoph Unterweger, David Stifter, Achim Walter Hassel, Christian Fuerst
Summary: Activated carbon fibers were prepared from viscose fibers using different activation agents. The combination of CO2 and H2O activation resulted in activated carbon fibers with high purity and excellent electrochemical performance. These fibers exhibited high specific surface area and specific capacitance, making them suitable for energy storage devices such as supercapacitors.
Article
Materials Science, Multidisciplinary
Ivana Zrinski, Alexey Minenkov, Jiri Duchoslav, Cezarina Cela Mardare, Heiko Groiss, Achim Walter Hassel, Andrei Ionut Mardare
Summary: A composite anodic oxide film is formed by electrochemical treatment, and the influence of different electrolyte species on the electrical behavior of memristive devices is analyzed, with citrate electrolyte showing better performance.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Polymer Science
Gary Saeckl, Jiri Duchoslav, Robert Pugstaller, Cornelia Marchfelder, Klaus Haselgrubler, Maelenn Aufray, David Stifter, Gernot M. Wallner
Summary: In this study, the reactions between DICY and metal oxides in waterborne epoxy varnishes were investigated using XPS and cryo-ULAM techniques. The results showed the formation of metal-organic complexes between DICY and metal oxides, and the enrichment of DICY hardener at the metal oxide-polymer interface in the varnish coatings.
Article
Materials Science, Composites
Christoph Unterweger, Matija Ranzinger, Jiri Duchoslav, Francesco Piana, Igor Pasti, Franz Zeppetzauer, Stefan Breitenbach, David Stifter, Christian Fuerst
Summary: In this study, biobased carbons were used as fillers in PHBV to create 100% biocomposites, and their mechanical and electrical properties were analyzed. The results showed significant improvements in the graphitic structure of carbonized wood dust and cellulose fibers with increasing temperature. The carbon content increased with temperature, while other elements were removed. Significant degradation of PHBV was observed when mixed with a specific filler. However, other fillers showed improvements in the mechanical performance, with carbonized fibers performing slightly better than wood dust analogues. The effects were even more pronounced at higher filler content, especially in terms of electrical conductivity.
JOURNAL OF COMPOSITES SCIENCE
(2022)
Article
Physics, Applied
N. Rauch, E. Andersen, I. G. Vicente-Gabas, J. Duchoslav, A. Minenkov, J. Gasiorowski, C. Floetgen, K. Hingerl, H. Groiss
Summary: This study systematically investigated the impact of plasma treatment on Si wafers with native oxide using spectroscopic ellipsometry, revealing oxide growth, amorphization of crystalline Si, and the formation of a transition layer between SiO2 and amorphous Si. Nitrogen gas was found mainly implanted at the SiO2/transition layer interface in the form of Si3N4. The research concluded that a general ellipsometry model could be used for all plasma species due to low Si3N4 concentrations and its similarity in refractive index and absorption to SiO2.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Roland Hager, Christian Forsich, Jiri Duchoslav, Christoph Burgstaller, David Stifter, Julian Weghuber, Peter Lanzerstorfer
Summary: Polymeric materials have emerged as important components in biosensing interfaces, providing superior surfaces for biomolecule binding and printing. This study characterized 11 different polymer foils and evaluated their suitability for surface functionalization, biomolecule micropatterning, and fluorescence microscopy. Results showed that COC, COP, and PMMA were the most promising alternatives to glass coverslips, demonstrating excellent applicability in subcellular micropatterning experiments.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ivana Zrinski, Janez Zavasnik, Jiri Duchoslav, Achim Walter Hassel, Andrei Ionut Mardare
Summary: The memristive properties of oxides in a Hf-Nb thin-film combinatorial system were investigated in this study. The devices grown on Hf-45 at.% Nb alloys showed improved memristive performances and achieved multi-level switching behavior with lower power consumption. The structure of the mixed oxides was found to be favorable for the formation of conductive filaments.
Article
Nanoscience & Nanotechnology
Markus Ostermann, Pierluigi Bilotto, Martin Kadlec, Juergen Schodl, Jiri Duchoslav, Michael Stoeger-Pollach, Peter Lieberzeit, Markus Valtiner
Summary: The aeronautical industry requires lightweight and low-cost solutions for climate crisis challenges. Graphene-related materials (GRM) are gaining attention due to their feasibility for industrial-scale production. This study proposes environmentally friendly partially oxidized graphene nanosheets (POGNs) reduced by green solvents as functional coatings for aeronautical applications. The system based on reduced graphene nanosheets (rGNs) and epoxy shows promising potential for enhancing surface resistance in a flight harsh environment.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Maria Ponomareva, Markus Nadlinger, Gabriela Schimo-Aichhorn, Jiri Duchoslav, David Stifter, Gerald Luckeneder, Roland Steger, Sandra Grienberger, Matthias Kogler, Markus Valtiner
Summary: Alkaline cleaning is a crucial process in the production of galvanized steel, and it has a profound effect on the surface chemistry of Zn-Al-Mg coatings. The surface concentration of Zn-oxide can be increased by weak alkaline cleaning, while strong alkaline cleaning dissolves the native oxide and forms a transient Zn/Mg-hydroxide on the surface.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
D. Leidlmair, J. Duchoslav, G. Mayr, M. Arndt, H. Gsaller, B. Strauss, D. Stifter
Summary: The interior structure and chemistry of single-component polyester-polyurethane (PU) coil coatings for the construction industry were analyzed using EDX, FTIR, and XPS. Cryo-ULAM was used to create extended tapers with a total dry film thickness of 50 μm. Coherence scanning interferometry, AFM, and SEM were utilized to examine the linearity and surface topography of the cuts. EDX mappings recorded the elemental structure and filler distribution on exposed sections. FPA FTIR spectroscopy in ATR mode revealed the clustering of nitrogen-containing groups, while XPS line scans provided depth profiling of the PU coating system.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Multidisciplinary
Christina Enengl, Alexander Lumetzberger, Jiri Duchoslav, Cezarina C. Mardare, Leon Ploszczanski, Harald Rennhofer, Christoph Unterweger, David Stifter, Christian Furst
Summary: The study explores the potential of using unpurified softwood kraft lignin for carbon fiber production, with promising mechanical properties observed in resulting fibers. XRD and Raman analysis indicate an increase in ordered carbon structures with higher carbonization temperatures.
Article
Materials Science, Multidisciplinary
David Doppelbauer, Abdalaziz Aljabour, Halime Coskun, He Sun, Markus Gusenbauer, Julia Lumetzberger, Daniel Primetzhofer, Bogdan Faina, Jiri Duchoslav, Matthias Kehrer, David Stifter, Heiko Groiss, Verena Ney, Andreas Ney, Philipp Stadler
Summary: Efficient electrocatalytic oxygen evolution from water using highly p-conducting zinc cobaltite spinel Zn1.2Co1.8O3.5 has been demonstrated, showing enhanced activity. The results suggest that increasing conductivity is advantageous for reducing ohmic losses and ensuring activity across the entire surface, improving anodic stability.
MATERIALS ADVANCES
(2021)
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.
