Article
Materials Science, Multidisciplinary
Xiaokang Yue, Ningsong Qu, Xin Ma, Hansong Li
Summary: The anodic electrochemical behaviors of titanium matrix composites in different electrolytes were investigated. The corrosion resistance is better in NaNO3 electrolyte due to the formation of a more stable passive film. The dissolved surface quality is better in NaCl electrolyte, but the current efficiency is lower.
Article
Materials Science, Multidisciplinary
Nathalie Ochoa, Enara Mardaras, Rodolfo Gonzalez-Martinez, Garikoitz Artola
Summary: The effect of microstructure on the corrosion resistance of four grades of cast irons was studied. The corrosion resistance increased in the order of grey < chunky < spheroidal < high silicon ductile cast iron. Graphite morphology governed the rate of galvanic corrosion, while the ferrous matrix controlled the formation of non-disrupted oxide layers. A pseudo-passive layer explained the lowest corrosion rate of the high silicon ductile cast iron.
Article
Materials Science, Multidisciplinary
Zahrina Mardina, Jeffrey Venezuela, Matthew S. Dargusch, Zhiming Shi, Andrej Atrens
Summary: This study evaluated the corrosion of biodegradable metals Mg, Zn, and Fe in Zahrina's interstitial fluid (ZIF P) for the treatment of pelvic organ prolapse. The results showed that ZIF P was a good model for studying the corrosion of Mg, but not for Zn. There was insufficient in vivo data to assess the corrosion of Fe. BSA increased the corrosion rate of Mg due to BSA chelation, inhibited the corrosion of zinc, and had little effect on iron.
Article
Materials Science, Multidisciplinary
A. H. Noorbakhsh Nezhad, E. Mohammadi Zahrani, A. M. Alfantazi
Summary: This study provides a detailed insight into the correlation between superhydrophobicity, erosion-corrosion resistance, and reinforcing phase amounts of Ni-Al2O3 nanocomposite coatings electrodeposited on Cu for the first time. The results show that there is no synergy between superhydrophobicity and erosion corrosion resistance, and the nanocomposite coating with 2.9wt% Al2O3 exhibits the best erosion-corrosion resistance.
Article
Biochemistry & Molecular Biology
Agata Sotniczuk, Agnieszka Jastrzebska, Adrian Chlanda, Agnieszka Kwiatek, Halina Garbacz
Summary: This study provides the first description of the effect of Streptococcus mutans on the surface topography and properties of nanostructured titanium. The results show that bacterial incubation leads to a slight decrease in surface nanoroughness but does not reduce the protection provided by the oxide layer. This highlights the importance of considering titanium microstructure when analyzing its behavior in the presence of carbohydrate-metabolizing bacteria.
Article
Materials Science, Multidisciplinary
Mohabbat Amirnejad, Mohammad Rajabi, Roohollah Jamaati
Summary: In this study, different textures of Ti6Al4V alloy with the same microstructure were developed through heat treatment in the alpha + beta phase region. The corrosion rate of the basal texture was found to be 6 times lower than that of the near prismatic texture, with the formation of a thick crack-free passive layer on the corroded surface. These findings provide important insights into the corrosion performance of the alloy.
Article
Materials Science, Multidisciplinary
Shengfeng Zhou, Junjie Yang, Cheng Deng, Jianbo Jin, Lianxi Hu, Yang Lu
Summary: Cu-based immiscible coatings reinforced with 10 wt% Fe-based amorphous powder were produced by laser melting deposition. The microstructure and corrosion behavior were investigated. The results showed that the interface of the coating and substrate changed from poor bonding to good bonding and crack debonding with increasing laser energy density. The corrosion characteristics also transformed from crevice corrosion to enhanced protection of passive films and reduced protection of passive films. The immiscible coating deposited with a laser energy density of 31.25 J/mm2 exhibited the highest corrosion resistance.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Rajesh Haldhar, Seong-Cheol Kim, Dwarika Prasad, M. A. Bedair, Indra Bahadur, Savas Kaya, Omar Dagdag, Lei Guo
Summary: In 0.5 M sulfuric acid, Papaver somniferum seed extract demonstrated efficient corrosion inhibition properties, with a monolayer formation on the iron alloy surface and a mixed type of inhibition behavior. SEM and AFM techniques were used to study the protective layer on the iron alloy, confirming the effectiveness of the seed extract as a corrosion inhibitor. Theoretical studies provided valuable insights into the comparative adsorption of phytochemicals, further supporting the role of P. somniferum as an efficient corrosion inhibitor.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
R. F. Santos, A. M. Ferro Rocha, A. C. Bastos, J. P. Cardoso, F. Rodrigues, C. M. Fernandes, J. Sacramento, M. G. S. Ferreira, A. M. R. Senos, C. Fonseca, M. F. Vieira, Luis F. Malheiros
Summary: The study focused on the effect of Cr on the corrosion susceptibility of WC-Ni-Cr-Mo composites in acid media, showing that Cr can effectively decrease corrosion susceptibility and major improvements are observed in chloride solution.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Adrian Grabos, Pawel Rutkowski, Jan Huebner, Dawid Kozien, Shenghua Zhang, Yen-Ling Kuo, Dariusz Kata, Shigenari Hayashi
Summary: The study investigated the applicability of previously obtained Inconel 625-NbC metal matrix composites (MMC) in high-temperature and/or oxidative environments. The samples were manufactured using spark plasma sintering (SPS) and subjected to oxidation tests. The results showed that all samples were able to form passive layers, but these layers were locally breached due to grain growth and thermal stresses. Two different passive layer formations were observed.
Article
Materials Science, Multidisciplinary
Rajesh Haldhar, Dwarika Prasad, Le T. D. Nguyen, Savas Kaya, Indra Bahadur, Omar Dagdag, Seong-Cheol Kim
Summary: The study demonstrates that the extract from Swertia chirata plant can effectively enhance the corrosion resistance of carbon steel in acidic medium, with high inhibition efficiency and adsorption capacity. Additionally, through experimental and theoretical investigations, the corrosion inhibition effect and mechanism were elucidated.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
S. Senthil Kumar, T. S. Senthilkumar, P. Pitchipoo, Yagya Dutta Dwivedi, N. Nagaprasad, Kuldeep K. Saxena, S. Rathinavel, Sayed M. Eldin, Krishnaraj Ramaswamy
Summary: The incorporation of MoS2 particles in Al-4% Mg material increases density and microhardness. The composite with 4% Mg and 6% MoS2 shows the highest percentage increase in density (8.04%) and microhardness (33%) compared to pure Aluminium. Adding MoS2 particles reduces wear loss in the Al-Mg alloy, with a decrease of 16.03% in composite with 4% Mg and 6% MoS2. SEM analysis shows that composites with higher MoS2 content exhibit smoother worn surfaces.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Environmental
Zerroug Meriem, Ferkous Hana, Djellali Souad, Bouzid Abderrazak, Mohammed A. Amin, Rezki Leila, Amina Belakhdar, Byong-Hun Jeon, Cherifa Boulechfar, Yacine Benguerba
Summary: The research demonstrates that polyphenols extracted from Artemisia Herba alba are effective corrosion inhibitors for mild steel in hydrochloric acid solution, with inhibition effectiveness increasing with concentration up to 92.9% at 900 ppm. Metal surface experiments confirm that the deposited inhibitor molecules successfully prevent HCl attacks at steel grain boundaries.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Aysen Kelesoglu, Gokmen Sigircik, Resit Yildiz, Ilyas Dehri
Summary: Pyrazinecarboxylic acid (PCA) has been identified as a potential corrosion inhibitor for mild steel in 0.5 M HCl environment, showing a high inhibition efficiency of 95.2%. Experimental and theoretical calculations revealed the formation of an adsorptive layer on the steel surface by PCA, leading to a significant corrosion inhibition effect.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
M. A. Hegazy, M. M. Hegazy, M. K. Awad, M. Shawky
Summary: Three di-cationic amphiphiles were synthesized and tested as corrosion inhibitors for CS in 1 M HCl, showing good inhibitory effect, possibly achieved through adsorption following Langmuir’s adsorption isotherm. SEM and AFM photos demonstrated a better CS surface in the presence of the inhibitors.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Multidisciplinary
H. A. Deore, A. Bhardwaj, A. G. Rao, J. Mishra, V. D. Hiwarkar
DEFENCE TECHNOLOGY
(2020)
Article
Metallurgy & Metallurgical Engineering
Pardeep Pankaj, Avinish Tiwari, Pankaj Biswas, A. Gourav Rao, Sukhomay Pal
WELDING IN THE WORLD
(2020)
Article
Chemistry, Physical
V. Anil Kumar, S. V. S. N. Murty, R. K. Gupta, A. Gourav Rao, M. J. N. Prasad
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Engineering, Mechanical
Pardeep Pankaj, Avinish Tiwari, Pankaj Biswas, A. Gourav Rao, Sukhomay Pal
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2020)
Article
Chemistry, Physical
V. Sivamaran, V. Balasubramanian, M. Gopalakrishnan, V. Viswabaskaran, A. Gourav Rao, G. Sivakumar
SURFACES AND INTERFACES
(2020)
Article
Engineering, Chemical
Kammari Suresh Chary, Akhilesh Kumar Sharma, Chandrashekhar S. Kumbhar, Ardula Gourav Rao, Chadalapaka Durga Prasad, Himanshu Sekhar Panda
Summary: A new approach of processing antimony-doped potassium sodium niobate nanostructures for fabricating KNNSb/PVDF-HFP composite nanofibers was investigated. The composite nanofibers exhibited improved piezoelectric properties and dielectric constant compared to pure PVDF-HFP nanofibers. The flexible nanogenerator based on these composite nanofibers showed promising performance when subjected to mechanical pressure, and feasibility for thermal management was also demonstrated.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Manufacturing
Avinish Tiwari, Pardeep Pankaj, Saurav Suman, Piyush Singh, Pankaj Biswas, Sukhomay Pal, A. Gourav Rao
Summary: The investigation explored a plasma-assisted friction stir welding (PFSW) alternative for DH36 steel with WC-10%Co tool, showing significant improvements in hardness and strength of the welded joints, as well as reduced tool wear compared to traditional FSW.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2021)
Article
Materials Science, Multidisciplinary
H. A. Deore, J. Mishra, A. G. Rao, B. D. Bhanushali, V. D. Hiwarkar
Summary: Ti-6Al-4V/B4C surface composite was successfully fabricated via additive friction stir processing (AFSP) technique, with uniform dispersion of reinforcement. B4C particles reacted with the Ti matrix, forming intermetallics like TiBX and TiC, while also refining the microstructure through Zener pinning and particle-stimulated nucleation. Surface composites produced by AFSP exhibited improved hardness, wear-resistance, and impact toughness compared to base metal Ti-6Al-4V and FSPed Ti-6Al-4V.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
H. A. Deore, Unissa Nichul, A. G. Rao, V. D. Hiwarkar
Summary: AFSP was used to fabricate defect-free WC reinforced surface composite on Ti-6Al-4V substrate, achieving uniform distribution of WC particles in the composite layer. The addition of WC reinforcement led to microstructure refinement, significantly improving hardness and wear resistance, with post FSP heat treatment resulting in a notable increase in impact toughness despite a slight drop in hardness value.
Article
Metallurgy & Metallurgical Engineering
Abhishek Kumar, Pardeep Pankaj, Pankaj Biswas, A. G. Rao
Summary: Hybrid friction stir welding is an emerging technique to improve material flow and reduce welding forces. This study investigated the experimental and numerical aspects of friction stir welding and plasma-assisted hybrid friction stir welding of AISI 1018 low carbon steel plates. The results showed that plasma assistance in welding significantly enhanced heat generation and improved weld strength.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2022)
Article
Materials Science, Coatings & Films
H. A. Deore, Unissa Nichul, A. G. Rao, V. D. Hiwarkar
Summary: Friction stir processing was used to fabricate a Ti-6Al-4V-based surface nanocomposite with SiC reinforcement. Microstructural modification and reinforcement behavior were investigated, and improvements in hardness, impact toughness, and wear resistance were observed. The enhancements were attributed to microstructural refinement, formation of martensite, and dispersion strengthening.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Characterization & Testing
Seerangan Ragu Nathan, Visvalingam Balasubramanian, Ardula Gourav Rao, Tushar Sonar, Mikhail Ivanov, Chinnasamy Rajendran
Summary: The influence of tool plunging rate on tool wear and stir zone characteristics of DMR249A high strength low alloy (HSLA) steel joints developed using friction stir welding (FSW) was analyzed in this study. HSLA steel plates were welded at different tool plunging rates and the wear of FSW tool was examined using various characterization techniques. It was found that a tool plunging rate of 2.5 mm min(-1) resulted in minimum tool wear and defect-free joints.
Article
Chemistry, Physical
V Sivamaran, V Balasubramanian, M. Gopalakrishnan, V. Viswabaskaran, A. Gourav Rao
Summary: Carbon spheres (CNSs) and carbon nanotubes (CNTs) are being studied extensively for their potential applications in adsorption, catalysis, and drug delivery. The synthesis of these materials is a complex and time-consuming process that requires the use of different catalyst materials and precursors. In this study, researchers attempted to synthesize CNSs and CNTs simultaneously in a single experiment, using a NiO/CuO/Al2O3 catalyst. The influence of process parameters and the growth mechanism of carbon nanomaterials were investigated, and the resulting samples were characterized using various techniques.
CHEMICAL PHYSICS IMPACT
(2022)
Review
Nanoscience & Nanotechnology
V Sivamaran, V Balasubramanian, M. Gopalakrishnan, V. Viswabaskaran, A. Gourav Rao, S. T. Selvamani
Summary: This review summarizes research on the synthesis of carbon nanotubes, carbon nanorings, and carbon nanospheres using chemical vapor deposition since 2010, discussing the impact of CVD process parameters on morphology and the growth mechanism of these materials. Researchers focused on the potential of carbon nanospheres and nanorings in energy storage and sensors compared to carbon nanotubes.
NANOMATERIALS AND NANOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Pardeep Pankaj, Avinish Tiwari, Pankaj Biswas, A. Gourav Rao
Summary: In this study, experimental and numerical analyses were conducted on the friction stir welding and plasma-assisted friction stir welding of dissimilar steels. The results showed that preheating the harder material ahead of the FSW tool significantly improved weld quality by reducing vertical force and grain size, while increasing hardness and impact toughness compared to traditional FSW.
ARABIAN JOURNAL FOR SCIENCE AND 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.
