Article
Materials Science, Multidisciplinary
Liang Wei, Weimin Qin
Summary: The corrosion behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy in aerated sulfuric acid solution was studied. The corrosion mechanism involves micro-galvanic corrosion cells and localized corrosion between different phases. The alloy shows better corrosion resistance compared to most Al-containing dual-phase HEAs.
Article
Materials Science, Multidisciplinary
Jianping Xu, Chengze Liu, Jinping Wu, Huan Li, Boyi Qi, Di Zhang, Yusheng Zhang, Yongqing Zhao, Lian Zhou
Summary: The effect of microscale residual stresses on the initial corrosion behavior of Ti35 alloys in boiling nitric acid solutions was investigated. It was found that the concentration of residual stresses accelerated the dissolution of the alloys, but the formation of oxide films prevented the corrosion medium from reaching the surface of the alloys, reducing the effect of residual stresses on corrosion.
Article
Materials Science, Multidisciplinary
Jianping Xu, Chengze Liu, Huan Li, Wenjun Wu, Jinping Wu, Bin Zhao, Yusheng Zhang, Yongqing Zhao, Lian Zhou
Summary: The corrosion resistances of Ti35 alloy in boiling nitric acid solution were investigated quantitatively by designing specific volume fraction of crystalline planes. The results showed that the prismatic texture with certain crystallographic planes exhibited excellent corrosion resistance compared with the basal texture.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Chemistry, Physical
B. Subramanian, P. Sasikumar, S. Thanka Rajan, K. Gopal Shankar, Murugan Veerapandian
Summary: This study developed a novel ternary amorphous alloy (Zr54Ti35Si11) coating using DC magnetron sputtering technique, which exhibited excellent corrosion resistance and bioactivity for biomedical implant application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Editorial Material
Chemistry, Physical
Simon Pauly
Summary: The glass-forming ability in metallic systems is determined by the diversity of atomic packing schemes, which can be evaluated by the width of the first broad X-ray diffraction peak. This provides a quick method for screening good glass formers in deposited alloy films.
Article
Materials Science, Ceramics
Shalendra Kumar, Fahad A. Alharthi, Adel El Marghany, Faheem Ahmed, Naushad Ahmad, K. H. Chae, Kavita Kumari
Summary: This study investigated the electronic structure and magnetic properties of Ce0.95Fe0.05O2 thin film. The results showed that the film had a polycrystalline structure with preferred orientation along (220), increased surface roughness compared to undoped CeO2TF, formation of oxygen vacancies, and reduction in valence state of Ce from +4 to +3. Additionally, room-temperature ferromagnetism was observed in the doped films with a Curie temperature around 300 K.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Hua Ai, Shulin Liu, Xiang-Xi Ye, Li Jiang, Bo Zhou, Xinmei Yang, Bin Leng, Zhijun Li
Summary: The study found that metallic impurities can accelerate the diffusion of Cr in Ni-26W-6Cr alloy, affecting the corrosion degree of the alloy. Additionally, the presence of Mo impurities in the salts can lead to unexpected depletion of W in the alloy.
Article
Materials Science, Multidisciplinary
Jing Zhao, Jun Yi, Bo Huang, Gang Wang
Summary: A method to fabricate metallic glass hollow microfibers via thermoplastic forming has been reported. The fabricated hollow microfibers have uniform and smooth appearance, with the possibility of having single or multiple channels. Investigation of the microstructure of the fibers revealed their forming mechanism. These hollow microfibers may have important engineering applications in areas such as electrochemistry, microelectromechanical devices, medicine, and biology.
Article
Materials Science, Multidisciplinary
X. S. Wei, J. L. Jin, Z. Z. Jiang, D. D. Liang, J. Shen
Summary: The FeCrMoWCBY metallic glass showed excellent corrosion resistance in oxygen-saturated lead-bismuth eutectic at 500 degrees C. Adding the right amount of W element can enhance corrosion resistance, but excessive W can reduce it. The surface structure of the Fe-based metallic glass consists of an inner amorphous transition layer and an outer FeCr2O4 oxide nanocrystal layer, with the continuous amorphous layer acting as a diffusion barrier to prevent further corrosion.
Article
Materials Science, Multidisciplinary
Yu Li, Hao Luo, Wei Li, Chun Xu, Na Min
Summary: A bilayer hierarchical Fe25.2Co25.2Ni27.4Cr22.2 high entropy alloy (HEA) thin film was obtained through a two-step temperature-controlled magnetron sputtering procedure. The film exhibited advantages of high hardness, good modulus, and excellent corrosion resistance. The hierarchical HEA film had higher nano-hardness, modulus values, higher electron transfer resistance, and lower overall corrosion rate compared to the substrate 304 ASS. The nanostructure of the film affected its mechanical and corrosion behavior.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Milica M. Vasic, Ivana Stojkovic Simatovic, Ljubica Radovic, Dragica M. Minic
Summary: Thermal treatment induces changes in phase composition and microstructural parameters of the alloy, which in turn affect its corrosion behavior in different solutions. In addition to phase composition, crystal orientation and the state of the alloy surface also play a significant role in overall corrosion behavior.
Article
Engineering, Environmental
Khalid A. Alamry, Ruby Aslam, Ajahar Khan, Mahmoud A. Hussein, Nada Y. Tashkandi
Summary: The study aims to develop green corrosion inhibitors to protect mild steel during pickling and descaling treatment. The proposed compounds showed significant inhibitory effects at higher concentrations and temperatures. Electrochemical tests revealed that the inhibitors improved corrosion charge transfer resistance.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Multidisciplinary Sciences
Jiaze Xie, Simon Ewing, Jan-Niklas Boyn, Alexander S. Filatov, Baorui Cheng, Tengzhou Ma, Garrett L. Grocke, Norman Zhao, Ram Itani, Xiaotong Sun, Himchan Cho, Zhihengyu Chen, Karena W. Chapman, Shrayesh N. Patel, Dmitri Talapin, Jiwoong Park, David A. Mazziotti, John S. Anderson
Summary: This article reports an amorphous coordination polymer that maintains high electrical conductivity in a disordered state and exhibits intrinsic glassy-metallic behavior. This finding expands the fundamental theory of metallic transport and has potential new applications.
Article
Electrochemistry
Ryo Sato, Terumasa Kuge, Shuji Nakanishi, Yoshiharu Mukouyama
Summary: The oscillation of corrosion potential in iron was investigated through electrochemical measurements and numerical simulations. It was found that the N-shaped negative differential resistance characteristic of iron oxidation and the reduction of nitric acid contribute to the oscillation. This study suggests that metal corrosion has essential factors resulting in oscillatory instability, which may cause the corrosion potentials of various metals to oscillate spontaneously under appropriate conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Zoran Bobic, Sanja Kojic, Goran M. Stojanovic, Vladimir Terek, Lazar Kovacevic, Pal Terek
Summary: This study aims to investigate the influence of commercially available mouthwashes on NiTi orthodontic archwires and reveal the effects through non-electrochemical corrosion tests and quantification of nanotopography changes. The results show that fluoride-containing mouthwashes predominantly cause material loss, while chloride-containing mouthwash can cause both material loss and material gain.
Article
Metallurgy & Metallurgical Engineering
A. Ravi Shankar, B. Anandkumar, C. Thinaharan, R. P. George, J. Rooby, John Philip, U. Kamachi Mudali
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2020)
Article
Materials Science, Multidisciplinary
A. Poonguzhali, S. Ningshen, G. Amarendra
METALS AND MATERIALS INTERNATIONAL
(2020)
Article
Chemistry, Physical
R. Priya, K. Thyagarajan, C. Thinaharan, S. Vijayalakshmi, S. Ningshen
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
C. Poddar, S. Ningshen, J. Jayaraj
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Coatings & Films
B. Madhura, E. Vetrivendan, Ch Jagadeeswara Rao, A. Udayakumar, S. Ningshen
SURFACE & COATINGS TECHNOLOGY
(2020)
Article
Materials Science, Coatings & Films
Paulson Varghese, Prabhat Kumar Shukla, E. Vetrivendan, Sanjay Kumar Das, D. Ponraju, S. Ningshen
SURFACE & COATINGS TECHNOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Ch. Jagadeeswara Rao, S. Ningshen
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Article
Materials Science, Coatings & Films
Paulson Varghese, E. Vetrivendan, R. Krishnan, Tom Mathews, S. Ningshen
Summary: The composite ceramic coating with cermet interlayer and bond coat, deposited by APS and HVOF processes respectively, showed excellent thermal fatigue resistance after 1000 thermal cycles. The combined layers effectively reduced thermal expansion mismatch stresses and improved the insulation resistance of the coated samples despite a slight decrease in bonding strength after thermal cycling.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
K. Thanigai Arul, E. Manikandan, J. Ramana Ramya, K. Indira, U. Kamachi Mudali, M. Henini, K. Asokan, Chung-Li Dong, S. Narayana Kalkura
Summary: Nitrogen ions implanted on composite coatings containing polymer/Mg-Ag co-incorporated hydroxyapatite developed using microwave irradiation reduced the average crystallite size by 80%, enhanced electrical resistance, microhardness, roughness, and turned superhydrophilic surface to hydrophobic. The corrosion potential was also improved at higher fluence, providing new insights on the modified coatings by correlating phase-structure, surface, and corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
B. Madhura, E. Vetrivendan, Ch Jagadeeswara Rao, S. Ningshen
Summary: The SiC-ZrB2 composite interlayer coating developed on high density graphite enhances the durability of the Y2O3 topcoat and provides passive oxidation protection, significantly extending its lifespan under high temperature conditions.
Article
Materials Science, Multidisciplinary
Ch Jagadeeswara Rao, S. Ningshen
Summary: The research investigated the corrosion behavior of 2.25Cr-1Mo steel in molten salt through electrochemical measurements, revealing that with increasing exposure time, the open-circuit potential shifted in a noble direction, polarization resistance increased, and the electrochemical impedance spectra exhibited three time constants.
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Paulson Varghese, E. Vetrivendan, B. R. Vaishnavi Krupa, Prabhat Kumar Shukla, Ram Kishor Gupta, E. Hemant Rao, Ganesh Puppala, S. Ningshen
Summary: This study investigates the impact of Laser Surface Remelting on plasma-sprayed TBCs to mitigate molten sodium corrosion. The remelted layer initially retains structural integrity but eventually leads to corrosive damage due to vertical cracks infiltrating molten sodium into non-remelted layers.
Article
Materials Science, Multidisciplinary
E. Vetrivendan, Rongali Hareesh, S. Ningshen
Summary: This study investigates the effects of chemical vapor deposition (pyrolysis) temperature on the properties of pyrolytic graphite (PyG). The results show that higher pyrolysis temperature leads to better density, structure, and preferred orientation of PyG, but also increases the presence of defects.
Article
Materials Science, Multidisciplinary
Srinivas Mannepalli, A. Ravi Shankar, S. Ningshen, John Philip
Summary: In this study, the effect of thermal ageing on the microstructure and secondary phase changes of type 316LN stainless steel was investigated. Results showed that the presence of nitrogen in the material led to insignificant changes in sensitization levels and pitting potential within a certain time range, even with lower chromium content. However, prolonged ageing resulted in reductions in sensitization levels and pitting potential, particularly in different chloride mediums.
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
E. Vetrivendan, Paulson Varghese, R. Krishnan, Tom Mathews, S. Ningshen
Summary: This study evaluates the application of Ni-P eutectic braze filler alloy in vacuum brazing of electronic copper and stainless steel, and attempts to optimize the brazing time. The experimental results show that the brazing parameters with 30 minutes holding time obtained good brazed joints with good structural continuity and high strength.
WELDING IN THE WORLD
(2022)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
