Article
Materials Science, Multidisciplinary
Mariko Kadowaki, Izumi Muto, Yu Sugawara, Nobuyoshi Hara
Summary: The research shows that the retained austenite in Fe-0.39C-1.51Si-2.01Mn steel has high dissolution resistance in NaCl-containing boric-borate buffers, acting as a barrier against pit propagation during pitting corrosion.
Article
Materials Science, Multidisciplinary
Jing Dai, Hua-Bing Li, Hao Feng, Zhou-Hua Jiang, Jin-Dong Qu, Yang Zhao, Tao Zhang
Summary: The study shows that nitrogen alloying significantly improves the pitting corrosion lifetime of martensitic stainless steels and restrains the growth of stable pits.
Article
Engineering, Mechanical
Tianqi Chen, Liang Sun, Qing Li, Chao Liu, Zhiyong Liu, Xuequn Cheng, Xiaogang Li
Summary: The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was comprehensively investigated. The mechanism of pitting corrosion was found to be acid chemical corrosion and electrochemical corrosion. Chlorine was found to be enriched in the rust layer.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Yunze Xu, Qiliang Zhang, Hao Chen, Yubin Zhao, Yi Huang
Summary: The pure corrosion, pure erosion, and erosion-corrosion behaviors of X65 carbon steel in corrosive fluid and slurry of different pH were investigated. The results showed that the corrosion pattern changed from general corrosion to pitting damage, possibly due to changes in the cathodic reaction. Sand impacts influenced the main cathodic reaction and led to the formation of pitting and small pits. An increase in solution pH resulted in more severe and scattered pitting damage.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Menghao Liu, Cuiwei Du, Ziyan Zhang, Jiawei Ao, Xiaogang Li
Summary: In this study, we investigated the effect of nitrogen on the corrosion behavior of low-alloy high-strength steel in a simulated marine atmosphere using various analytical methods. The results showed that the addition of 0.02 wt.% nitrogen did not significantly improve the average corrosion resistance but slightly decreased the ratio of maximum corrosion depth to average corrosion depth. Nitrogen was found to be present as ammonium ions and enriched at the bottom of corrosion products. Overall, the addition of 0.02 wt.% nitrogen slightly enhanced the polarization resistance and increased the stability of corrosion products, but had no obvious improvement on decreasing the corrosion rate.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Anastasija Lazareva, Joshua Owen, Silvia Vargas, Richard Barker, Anne Neville
Summary: The study provides new insights into the evolution of FeCO3 layer and its connection to the initiation and propagation of localized corrosion on carbon steel in CO2-saturated environments. The research identifies crevice-like regions at boundaries/edges of FeCO3 crystals as potential precursors to long-term localized corrosion.
Article
Construction & Building Technology
Siddharth Chauhan, S. Muthulingam
Summary: This study investigates the surface roughness characteristics of thermo-mechanically treated reinforcing bars under pitting corrosion and elevated temperature conditions. The findings show that the surface roughness parameters change significantly with increasing levels of pitting corrosion and exposure to elevated temperatures. Microstructural examinations also reveal the formation and growth of particles at rising temperatures, which can promote initial fracture propagation at the steel sub-surface.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Yu Zhang, Kaifeng Zheng, Jin Zhu, Ming Lei, Xiaoyang Feng
Summary: Weathering steel and high-performance steel are commonly used in bridge engineering, but corrosion effects can reduce their fatigue strength, posing a threat to the safety and reliability of bridges. Experimental results show that corrosion causes a decrease in the fatigue strength of Q345CNH and HPS 70 W, with fatigue cracks primarily originating from pitting flaws.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Tianshu Li, Szu-Chia Chien, Zhe Ren, Wolfgang Windl, Frank Ernst, Gerald S. Frankel
Summary: By low temperature carburization, high fraction of interstitial carbon can significantly enhance the pitting corrosion resistance of austenitic stainless steel. Contrary to previous beliefs that carbon strengthens the passive film, it actually weakens the film but strengthens the alloy by forming strong localized bonds with metal atoms. This new understanding suggests a novel strategy for designing corrosion resistant alloys through surface engineering with concentrated interstitials forming strong bonds with matrix atoms.
Article
Green & Sustainable Science & Technology
San He, Haotong Zhao, Patioon Tontiwachwuthikul, Yunpeng Qiu, Siqi Luo, Xingyu Xia
Summary: This study investigated the corrosion behavior and mechanism of carbon steel under different thickness scales in under-deposit corrosion (UDC). The results showed that a corrosion product film formed with CaCO3 deposits has a limited protective effect on the carbon steel, and pitting corrosion was observed at 30℃. The uniform corrosion rate of the carbon steel decreased with increasing deposit layer thickness.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Materials Science, Multidisciplinary
Manlang Cheng, Pei He, Longlin Lei, Xin Tan, Xiangyu Wang, Yangting Sun, Jin Li, Yiming Jiang
Summary: Welding has a detrimental effect on the corrosion resistance of both 304 and newly developed steel QN1803. This is mainly attributable to element segregation and decreased pitting corrosion resistance in the fusion zone (FZ) of QN1803 compared to 304.
Article
Construction & Building Technology
Yun Zhao, Qi Guo, Zizhong Zhao, Xian Wu, Ying Xing
Summary: Steel is becoming more popular due to its high strength, ductility, assembly performance, and recyclability. However, steel structures suffer from corrosion, which decreases durability and service life. In this study, relationships between pit depth expectation, standard deviation, and corrosion time are constructed, and an in-situ pitting evolution method for evaluating residual tensile strength is proposed.
STEEL AND COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
J. Hesketh, E. J. F. Dickinson, M. L. Martin, G. Hinds, A. Turnbull
Summary: Coupon immersion tests on 316L stainless steel in a simulated oilfield environment showed that H2S partial pressure affects pit depth and density, with the most significant pitting observed at intermediate pressures and inhibition of pitting at higher pressures. The pH in the pit solution plays a key role in determining the solubility of metal sulphides and the availability of free H2S for adsorption on the pit surface.
Article
Engineering, Marine
Sulaiman Shojai, Peter Schaumann, Tim Bromer
Summary: The study found that the supporting structures and transformer platforms for offshore wind turbines are prone to corrosion, especially pitting corrosion which affects the fatigue life of marine structures. By developing three models to evaluate stress concentrations, it was observed that the double-pit model shows good agreement with stress concentrations on real corroded surfaces.
Article
Construction & Building Technology
Samanbar Permeh, Kingsley Lau, Matthew Duncan, Ron Simmons
Summary: The role of sulfate ions in the corrosion of steel in alkaline solutions has been debated, with higher concentrations leading to increased corrosion rates and metastable pitting. Recent observations have supported the development of material specifications restricting sulfate ion levels in deficient grout to prevent corrosion of steel.
MATERIALS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Enrique Hernandez-Sanchez, Julio C. Velazquez, Jose. L. Castrejon-Flores, Alexis Chino-Ulloa, Itzel P. Torres Avila, Rafael Carrera-Espinoza, Jorge A. Yescas-Hernandez, Carlos Orozco-Alvarez
MATERIALS TRANSACTIONS
(2019)
Article
Chemistry, Applied
S. Capula-Colindres, G. Teran, E. Torres-Santillan, L. Villa-Vargas, J. C. Velazquez
REVISTA MEXICANA DE INGENIERIA QUIMICA
(2019)
Article
Biochemistry & Molecular Biology
Alma Valor, Eduardo J. Arista Romeu, Galileo Escobedo, Adriana Campos-Espinosa, Ivette Irais Romero-Bello, Javier Moreno-Gonzalez, Diego A. Fabila Bustos, Suren Stolik, Jose Manuel de la Rosa Vazquez, Carolina Guzman
Article
Computer Science, Interdisciplinary Applications
Luis Hernandez-Quintanar, Diego A. Fabila-Bustos, Macaria Hernandez-Chavez, Alma Valor, Jose M. de la Rosa, Suren Stolik
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2020)
Article
Computer Science, Interdisciplinary Applications
Eduardo J. Arista Romeu, Josue D. Rivera Fernandez, Karen Roa Tort, Alma Valor, Galileo Escobedo, Diego A. Fabila Bustos, Suren Stolik, Jose Manuel de la Rosa, Carolina Guzman
Summary: The combination of spectrometric techniques with statistical processing shows promise in improving the classification of steatosis through a label-free approach. However, the statistical schemes applied may be too complex for everyday medical practice. The designed software, including machine learning algorithms, is capable of automatically classifying samples based on their steatosis grade with low error rates.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Spectroscopy
Karen Roa-Tort, Josue D. Rivera-Fernandez, Jose M. de la Rosa-Vazquez, Galileo Escobedo, Suren Stolik, Alma Valor, Diego A. Fabila-Bustos
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2020)
Article
Materials Science, Multidisciplinary
Pablo A. Ruiz-Trabolsi, Julio Cesar Velazquez, Carlos Orozco-Alvarez, Rafael Carrera-Espinoza, Jorge A. Yescas-Hernandez, Noe Eliseo Gonzalez-Arevalo, Enrique Hernandez-Sanchez
Summary: This study investigated the influence of the treated material size on the kinetics of growth of boride layers, showing that the sample diameter has a significant impact on the growth rate of boride layers. The results indicate that the layer thickness increases with the sample diameter under the same treatment conditions.
Article
Chemistry, Physical
S. Capula-Colindres, G. Teran, E. Torres-Santillan, K. Aguir, O. G. Suchil, J. C. Velazquez, J. Oliva
Summary: The VP-IDM method is shown to be an effective technique for obtaining well-dispersed metallic nanoparticles on carbon nanotubes, thereby improving the sensitivity of ammonia gas detection.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Crystallography
Pablo Alfredo Ruiz-Trabolsi, Alexis Chino-Ulloa, Jose Guadalupe Miranda-Hernandez, Raul Tadeo-Rosas, Rafael Carrera-Espinoza, Julio Cesar Velazquez, Enrique Hernandez-Sanchez
Summary: This study compares the tribological behavior of surface layers obtained through three different hardening processes. It finds that boride layers exhibit the highest wear resistance, while carburized layers experience the greatest volume loss. The research also identifies abrasive wear as the main mechanism in all samples and highlights that the coefficient of friction is not always directly related to the wear process.
Article
Materials Science, Multidisciplinary
Alexis Chino-Ulloa, Pablo Alfredo Ruiz-Trabolsi, Itzel Pamela Torres-Avila, Carlos Orozco-Alvarez, Raul Tadeo-Rosas, Julio Cesar Velazquez, Enrique Hernandez-Sanchez
Summary: This study examines the formation and properties of Ni-B and Cr-B hard layers on the surface of 80/20 nickel-chromium alloy. The thickness of the layers was found to be correlated with the experimental parameters of time and temperature. The hardness and Young's modulus values of the resulting layers are within the range reported in literature for boriding nickel alloys.
Article
Chemistry, Analytical
Josue D. Rivera-Fernandez, Karen Roa-Tort, Suren Stolik, Alma Valor, Diego A. Fabila-Bustos, Gabriela de la Rosa, Macaria Hernandez-Chavez, Jose M. de la Rosa-Vazquez
Summary: Globally, breast cancer is the most prevalent cancer in women. Traditional diagnostic methods for breast cancer require high-resolution images and knowledge of image origin to avoid errors. Therefore, a low-cost diffuse optical mammography system is presented for breast cancer diagnosis and research. This system combines breast tissue photography, diffuse optical reflectance, and digital image processing algorithms. It enables in vivo measurements, 3D reconstruction, and analysis using deep learning techniques.
Article
Materials Science, Multidisciplinary
Julio Cesar Velazquez, Jorge Jonathan Hernandez-Huerta, Manuela Diaz-Cruz, Enrique Hernandez-Sanchez, Arturo Cervantes-Tobon, Selene Irais Capula-Colindres, Roman Cabrera-Sierra
Summary: The most cost-effective method for transporting liquids and gaseous hydrocarbons is through pipelines. Researching various corrosion mechanisms and their origins is crucial, especially understanding the correlation between pitting corrosion and inclusions in API 5L X60 steel.
Article
Materials Science, Multidisciplinary
Laura Montserrat Alcantar-Martinez, Pablo Alfredo Ruiz-Trabolsi, Raul Tadeo-Rosas, Jose Guadalupe Miranda-Hernandez, Roman Cabrera-Sierra, Julio Cesar Velazquez, Enrique Hernandez-Sanchez
Summary: The mechanical performance of API 5L grade B steel was evaluated after undergoing a thermochemical boriding process. The microhardness of the boride layer was quantified to characterize its mechanical resistance under different conditions. The study also examined changes in the steel's yield strength, ultimate tensile strength, and ductility after treatment with boron. Erosion-corrosion resistance and wearing resistance were assessed to determine the suitability of borided pipeline steel for aggressive environments and construction conditions.
Article
Construction & Building Technology
E. Rojas Villafane, A. Valor, J. M. de la Rosa, D. Fabila-Bustos, S. Stolik
Summary: This study presents a design and application of an annular LED array capable of producing a homogeneous irradiance pattern, which has been validated through software simulation and real-world testing. The method developed for this array can be used for designing sources in various applications where homogeneous irradiance is required, such as medical imaging.
LIGHTING RESEARCH & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
S. Capula-Colindres, G. Teran, D. Angeles-Herrera, J. C. Velazquez, E. Torres-Santillan
Summary: This study determined the fracture toughness of the API 5L X60 pipeline in different regions using SE(B) specimens and compared the results with K-IC-CVN correlation equations. It was found that the K-IC and CVN values were highest in the base metal (BM), followed by the heat-affected zone (HAZ) and the welding bead (WB) in the API 5L pipelines, consistent with reported values by other authors.
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.
