Article
Chemistry, Physical
Kui Xue, Yan-Jin Li, Tian-Hao Ma, Lan-Yue Cui, Cheng-bao Liu, Yu-hong Zou, Shuo-Qi Li, Fen Zhang, Rong-Chang Zeng
Summary: In this research, a self-assembled amorphous calcium carbonate (ACC)@curcumin (Cur) loaded polymethyltrimethoxysilane (PMTMS) coating on micro-arc oxidation (MAO) coated magnesium (Mg) alloy was proposed to overcome the issues of rapid corrosion and bacterial infection in using biodegradable Mg alloy for biomedical materials. The coating exhibited favorable corrosion resistance, dual antibacterial ability, and good biocompatibility. Cur was employed as an antibacterial agent and photosensitizer for photothermal therapy. The core of ACC significantly improved the loading of Cur and the deposition of hydroxyapatite corrosion products during degradation, thus enhancing the long-term corrosion resistance and antibacterial activity of Mg alloys.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Kui Xue, Pei-Hong Tan, Ze-Hui Zhao, Lan-Yue Cui, M. Bobby Kannan, Shuo-Qi Li, Cheng-Bao Liu, Yu-Hong Zou, Fen Zhang, Zhuo-Yuan Chen, Rong-Chang Zeng
Summary: In this research work, a Mg(OH)2 coating was formed on the surface of micro arc oxidation (MAO) coated AZ31 alloy through a low temperature hydrothermal method, incorporating sodium alginate (SA) and beta-cyclodextrin (beta-CD)@curcumin (Cur). The coating exhibited excellent corrosion protection, multi-antibacterial ability and almost no toxicity to the cells. The photothermal performance of the coating was achieved through the light absorption of encapsulated Cur by beta-CD, while SA enhanced the binding force between the drug and the substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Xiaodong Xue, Chunyong Liang, Donghui Wang, Feng Peng
Summary: Magnesium and its alloys have excellent mechanical properties and biodegradability, making them promising candidates in industrial and biomedical fields. However, their rapid corrosion limits their widespread applications. The development of self-healing coatings is essential to repair the damage and enhance their corrosion protection ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Applied
Haotong Li, Songhua Si, Kang Yang, Zhinan Mao, Yuehua Sun, Xinru Cao, Haotian Yu, Jingwu Zhang, Can Ding, Hongxing Liang, Liang Wu
Summary: This study focuses on the development of silk fibroin coating on biomedical magnesium alloys. The authors demonstrate that using hexafluoroisopropanol as a solvent and applying ethylene glycol diglycidyl ether for stabilization can improve the adhesion and corrosion resistance of the coating. The results show that the HFIP-based silk fibroin coating exhibits better compactness and adhesion strength compared to aqueous-based silk fibroin coating, and also demonstrates significantly enhanced corrosion resistance.
PROGRESS IN ORGANIC COATINGS
(2023)
Review
Chemistry, Physical
Mariana P. Medeiros, Debora R. Lopes, Megumi Kawasaki, Terence G. Langdon, Roberto B. Figueiredo
Summary: There is great interest in using severe plastic deformation (SPD) to improve the performance of magnesium for biological applications. However, contradictory reports exist regarding the properties and trends. This study reviews the structural features, mechanical properties, corrosion behavior, and biological response of magnesium and its alloys processed by SPD, with a focus on equal-channel angular pressing (ECAP) and high-pressure torsion (HPT). The results show that grain refinement through SPD can improve the mechanical properties and corrosion resistance of magnesium without compromising the biological response, indicating the great potential of SPD for enhancing the performance of magnesium for biological applications.
Article
Materials Science, Multidisciplinary
Yong Liu, Yinchuan Wang, Jialiang Lin, Meng Zhou, Fei Yu, Yongcan Huang, Bin Kang, Deli Wang, Tianbing Wang, Hui Zeng
Summary: The study found that brushite coated JDBM had the highest corrosion resistance, followed by uncoated JDBM, and then pure Mg. The main corrosion product of the Mg alloys in the cell culture medium was MgCO3 center dot 3H(2)O. The corrosion form of the JDBM alloys was uniform corrosion, while that of pure Mg was not uniform.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Engineering, Biomedical
Yahya Efe Yayoglu, Ryan G. Toomey, Nathan B. Crane, Nathan D. Gallant
Summary: Magnesium and its alloys are considered promising materials for medical implants due to their biocompatibility and mechanical properties. However, the degradation rate of magnesium in aqueous environments is too high for most applications. A study found that hydrophobic textured surfaces can reduce corrosion rates on magnesium, but the specific role of texture and hydrophobic treatments in corrosion rates needs further investigation.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Mohan Sathyaraj, K. Ravichandran, Sankara Narayanan
Summary: This study aims to prevent excessive dissolution of magnesium by forming a fluoride conversion coating as a pre-treatment, followed by deposition of magnesium phosphate coating to develop a magnesium fluoride-magnesium phosphate duplex coating. The results of the study demonstrate that the magnesium fluoride-magnesium phosphate duplex coating can significantly improve corrosion resistance and enhance the bioactivity of magnesium.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Metallurgy & Metallurgical Engineering
Tong Bu, Ruijie Jia, Tao Ying, Andrej Atrens, Pengbo Chen, Dajiang Zheng, Fuyong Cao
Summary: A novel coating on the Mg1Mn alloy was produced by anodic polarization combined with hydrothermal treatment (AP + H) in 0.1 M Na2CO3 solution. The coating consisting of MgCO3, Mg(OH)(2), and MgO provided satisfactory protection in 3.5 wt% NaCl, but showed increased corrosion rate after 72 hours. The failure of the coating was attributed to second phase particles or impurities in the matrix. The AP + H coating is considered suitable as a primer coating for Mg applications in kitchen ware, biomedical areas, or industry.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xinxin Jin, Di Mei, Dongfang Chen, Yaqian Li, Liguo Wang, Shijie Zhu, Shaokang Guan
Summary: Incorporating degradable calcium phosphate beta-TCP in the MAO coating enhances the corrosion resistance and biocompatibility, providing a strategy to improve the properties of magnesium alloy for orthopedic applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Electrochemistry
Peng Zhou, Hao Guo, Mingming Li, Chunyan Zhang, Baoxing Yu, Yunfei Zhai, Yan Chen, Jingli Sun, Yong Yuan, Tao Zhang, Fuhui Wang
Summary: Temperature is a critical parameter that affects the electrochemical reactivity and crystal nucleation/growth in the conversion treatment of Mg alloys. Increasing the operating temperature, however, reduces the reactivity of the bath and compromises the protective coating. Preheating the Mg substrate, on the other hand, does not change the chemistry of the bath. This study shows that preheating the Mg substrate to a temperature higher than the bath can effectively improve the protective coating due to enhanced crystal precipitation kinetics at the reaction fronts.
ELECTROCHIMICA ACTA
(2022)
Review
Metallurgy & Metallurgical Engineering
Ai-Meng Zhang, Praneesh Lenin, Rong-Chang Zeng, M. Bobby Kannan
Summary: Magnesium is a promising candidate metal for biodegradable implants due to its biodegradation tendency and excellent biocompatibility. However, the high degradation rate and localized degradation in physiological conditions are major challenges for its successful implant applications. Recent research has focused on coating hydroxyapatite (HAp), a biocompatible ceramic material, on magnesium-based materials to improve degradation resistance and biocompatibility.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Sheng-Jian Zhang, Duan-Lin Cao, Li-Kun Xu, Jian-Ke Tang, Rong-Qian Meng, Hong-Dao Li
Summary: The study successfully fabricated a fluorine-free superhydrophobic Mg(OH)2/DTMS composite coating with excellent corrosion resistance and superhydrophobicity. The coating was composed of walnut-like micro/nanostructures, demonstrating a high contact angle and low sliding angle, and exhibited significantly improved corrosion resistance compared to uncoated substrate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Coatings & Films
Liyuan Wang, Ximei Xiao, Xiaoli Yin, Jun Wang, Guang Zhu, Sirong Yu, Enyang Liu, Bingying Wang, Xizhen Yang
Summary: In this study, a Ca-P/CS composite coating was prepared on AZ31 Mg alloy surface through a simple process, improving the corrosion resistance, bonding ability, and self-cleaning properties of the Mg alloy. The composite coating provided better protection to the substrate in electrochemical measurements and immersion tests compared to the single Ca-P coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Applied
Meng Tian, Shu Cai, Lei Ling, You Zuo, Zhongyan Wang, Pengbo Liu, Xiaogang Bao, Guohua Xu
Summary: A dual-function antibacterial composite coating of hydroxyapatite (HA)/hydroxypropyltrimethyl ammonium chloride chitosan (HACC) was successfully prepared on Mg alloy in this study. The composite coating exhibited superhydrophilicity and excellent bactericidal properties, reducing protein adsorption and bacterial adhesion. Moreover, it showed good biocompatibility on cells.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Multidisciplinary
Jinyoung Kim, Hyun Lee, Tae-Sik Jang, DongEung Kim, Chang-Bun Yoon, Ginam Han, Hyoun-Ee Kim, Hyun-Do Jung
Summary: This study utilized various surface treatment technologies on titanium to improve biological response and adhesion strength, aiming to enhance the performance of titanium and its alloys in orthopedic applications.
Article
Materials Science, Multidisciplinary
Hyun Lee, Min-Kyu Lee, Kwang-Hee Cheon, In-Gu Kang, CheonIl Park, Tae-Sik Jang, Ginam Han, Hyoun-Ee Kim, Juha Song, Hyun-Do Jung
Summary: This study proposes a dual-body combination achieved through a densification process for simultaneous release of rhBMP-2 and TCH for efficient bone regeneration. Biomimetic titanium scaffolds with significantly different pore characteristics are successfully fabricated, showing mechanical properties suitable as bone substitutes.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
Ji-Ho Ahn, Jinyoung Kim, Ginam Han, DongEung Kim, Kwang-Hee Cheon, Hyun Lee, Hyoun-Ee Kim, Young-Jig Kim, Tae-Sik Jang, Hyun-Do Jung
Summary: Biodegradable composite scaffolds with high ceramic loadings were fabricated using binder jetting technique, which demonstrated superior mechanical properties and biocompatibility in tissue engineering applications.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Biomedical
Kwang-Hee Cheon, Cheonil Park, Min-Ho Kang, In-Gu Kang, Min-Kyu Lee, Hyun Lee, Hyoun-Ee Kim, Hyun-Do Jung, Tae-Sik Jang
Summary: The study modified the physical and chemical properties of PEI-coated magnesium implants by introducing biologically compatible tantalum, which significantly enhanced bone tissue affinity and osseointegration capability. Results from a rabbit femur study indicated promising potential for achieving early mechanical fixation and long-term success in biodegradable orthopedic implant applications with Ta/PEI-coated magnesium.
BIOACTIVE MATERIALS
(2021)
Article
Materials Science, Biomaterials
Suhyung Park, Hyun Lee, Hyoun-Ee Kim, Hyun-Do Jung, Tae-Sik Jang
Summary: The study successfully delays the corrosion of biodegradable magnesium-based vascular stents by incorporating silica nanoparticles surface-functionalized with hexadecyltrimethoxysilane into a poly(L-lactic acid) coating, improving endothelial cell responses to the stents.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Engineering, Biomedical
Shin-Young Kim, Ginam Han, Da-Bin Hwang, Dong-Hoon Won, Yoo-Sub Shin, Changuk Kim, Jeon Min Kang, Jung-Hoon Park, Hyun-Do Jung, Wooram Park, Jun-Won Yun
Summary: This study evaluates the in vivo safety and usability of a 3D-printed implantable drug delivery device for ALF treatment. The results show that the device is safe for use and can deliver various active pharmaceutical ingredients to the liver tissue for the treatment of acute liver failure.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Min-Kyu Lee, Hyun Lee, Hyoun-Ee Kim, Eun-Jung Lee, Tae-Sik Jang, Hyun-Do Jung
Summary: The nano-topographical features of titanium-niobium-zirconium (TNZ) alloy surfaces were successfully controlled using the target-ion induced plasma sputtering (TIPS) technique. Various nanopatterns were fabricated on the surface of the TNZ alloys, with experimental groups showing superior biological functions when nanopattern widths were >= 130 nm.
Article
Metallurgy & Metallurgical Engineering
Kwang-Hee Cheon, Cheonil Park, Min-Ho Kang, Suhyung Park, Jinyoung Kim, Seol-Ha Jeong, Hyoun-Ee Kim, Hyun-Do Jung, Tae-Sik Jang
Summary: The combination of PEI coating and Ta ion implantation effectively improves vascular compatibility and prevents in-stent restenosis and thrombosis by enhancing endothelial cell adhesion/proliferation and suppressing platelet adhesion/activation. This innovative approach provides a solution to the rapid corrosion and poor vascular compatibility issues faced by biodegradable magnesium stents.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Engineering, Biomedical
Min-Kyu Lee, Hyun Lee, Cheonil Park, In-Gu Kang, Jinyoung Kim, Hyoun-Ee Kim, Hyun-Do Jung, Tae-Sik Jang
Summary: In recent years, pure iron has gained attention as a biodegradable orthopedic implant material. However, its slow and uneven degradation in physiological conditions limits its practical applications. In this study, researchers developed a novel approach using nanostructured surface topography and galvanic reaction to achieve uniform and accelerated degradation of pure iron implants. Results showed that this approach effectively enhanced the mechanical properties and biocompatibility of the implants, demonstrating its potential for long-term biosafety and clinical efficacy.
BIOACTIVE MATERIALS
(2022)
Article
Engineering, Environmental
Junghyun Lee, Chong Yang Chuah, Wen See Tan, Juha Song, Tae-Hyun Bae
Summary: A novel approach utilizing 3D printing of degradable polymer for designing CO2 separation has been reported, resulting in the development of promising 3D monolithic adsorbents with effective CO2 adsorption performance under dynamic flow conditions without experiencing any pressure drop. The stability and regenerability of the adsorbents were successfully demonstrated through repetitive adsorption-desorption cycles, showcasing potential applications in various gas separation processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Byeong Hoon Bae, Kang Hyeck Hu, Ji Na Song, Min Jung Oh, Si Hong Ryu, Hyun-Do Jung, Chang-Bun Yoon
Summary: This study investigated the wetting properties of Bi2O3-ZnO-B2O3 glass composite materials with different ZnO and cordierite contents. The addition of cordierite improved the adhesion of the glass and reduced its coefficient of thermal expansion. X-ray diffraction and transmission electron microscopy studies confirmed that the glass was a composite material. The developed Bi2O3-ZnO-B2O3 glass composite shows promise for applications in architecture, electronic devices, and home appliances.
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2022)
Article
Engineering, Mechanical
Qingbo Wang, Chao Gao, Filippo Berto
Summary: This investigation applies the deep learning algorithm to design fatigue-resistant notched structures by predicting their mechanical behaviors under different loading conditions. The results demonstrate that deep learning is a promising approach for fatigue design and offers a cost-effective solution.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Nanoscience & Nanotechnology
Vito Errico, Paolo Posa, Li Liang, Marco Maurizi, Di Wan, Andrea Angelastro, Chao Gao, Sabina Luisa Campanelli, Filippo Berto
Summary: This study aims to expand the multi-layer printing capabilities of L-PBF by enabling the manufacturing of two different materials in the same layer. The results show that the method is repeatable and capable of fabricating strong and tough intralayer interfaces. No modifications to the machine are required, and the implementation is cost-effective.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Biomedical
Hyun Lee, Min-Kyu Lee, Ginam Han, Hyoun-Ee Kim, Juha Song, Yuhyeon Na, Chang-Bun Yoon, SeKwon Oh, Tae-Sik Jang, Hyun-Do Jung
Summary: In this study, functionally graded porous Ti scaffolds were fabricated to overcome the issue of simultaneous release of multiple biomolecules. These scaffolds exhibited suitable mechanical properties, good structural stability, and prolonged release of specific biomolecules.
BIO-DESIGN AND MANUFACTURING
(2022)
Review
Cell & Tissue Engineering
Hyun Lee, Tae-Sik Jang, Ginam Han, Hae-Won Kim, Hyun-Do Jung
Summary: Freeform 3D printing has significantly advanced the fabrication of artificial tissues with vascularized structures, utilizing a supporting matrix to optimize the printing quality and performance. The technique is potentially applicable for complex 3D objects with curved and irregular shaped vascular networks, but requires careful consideration of material properties and challenges for effective design and selection.
JOURNAL OF TISSUE ENGINEERING
(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.