Science topic

Corrosion - Science topic

The gradual destruction of a metal or alloy due to oxidation or action of a chemical agent. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
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Publications related to Corrosion (10,000)
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Catastrophic transformer failures are often attributed to corrosive sulphur-related faults. However, the existing challenge lies in the absence of practical, real-time monitoring techniques for sulphur corrosion, especially on-site. Previous studies have proposed the use of thin film sacrificial copper strip sensors as a promising solution to addre...
Article
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This study investigates the corrosion attack after breakaway oxidation on four commercial alloys (T91/P91, 304L, Sanicro 28 and Inconel 625) in the presence of KCl(g)/KCl(s) at 600 ◦C. The study suggests that an increase in corrosion resistant alloying elements (mainly nickel and chromium) results in the decrease of the thickness of the general oxi...
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The work proposes a probabilistic-driven framework for enhanced corrosion estimation of ship structural components using Bayesian inference and limited measurement data. The new approach for modelling measurement uncertainty is proposed based on the results of previous corrosion tests that incorporate the non-uniform character of the corroded surfa...
Article
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This study researched S275JR MS corrosion sites deactivation in [Na3H(CO3)2] heavy deposits (Gamboru, Borno State, Nigeria), using PPQ as alternative inhibitor, and employed WL, HER, EIS, PDP, SEM and computational techniques. PPQ showed effective MS corrosion mitigation in [Na3H(CO3)2] heavy deposits. IE(%) of 98.8, 99.5, 82.9 and 95.9 %, for grav...
Article
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ATK was investigated to ascertain its IE(%) on ASTM A36 MS corrosion in a HCl medium. This was possible through the use of WL, Td, Tm, PDP, EIS and SEM techniques. It was seen from all experimental results that, through adsorption onto the MS surface, ATK mitigated active corrosion sites. CR was seen to decrease with higher inhibitor Ct from 197.6...
Article
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Alloys comprising common alloying elements are more amenable to accepting high fractions of scrap. The present study examines the effect of Cu and Al addition on common element containing multiple principal element alloy (CE-MPEA): AlxCuyCrFeMnNi (x = 0, 0.15, 0.3, 0.6, 0.9 and y = 0, 0.07, 0 = 0.14). Alloys were fabricated by arc casting. As expec...
Article
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The evaluation of service conditions of concrete structures has still been carried out through implicit knowledge based on the expertise and knowledge of inspectors, who classify structures based on subjective criteria. The main degradation mechanism of reinforced and prestressed concrete structures is the corrosion of steel reinforcements, with ex...
Article
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This study comparatively investigated the fretting corrosion fatigue cracking of alloy 690TT under partial slip regime in 100 ℃ and 290 ℃ water. The results revealed that the occurrence of continuous dynamic recrystal-lization. The process at 290 ℃ was considerably faster resulting in smaller size of ultra-fine grained structure. The increase in th...
Article
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The application of inhibitors against metals and alloys corrosion in various aggressive environments is an excellent solution. The present study explored Cu corrosion inhibition in a 0.5 M H2SO4 solution by MP EO, from Western Morocco, using EIS and PDP analyses. GC coupled with MS revealed that MP EO is mainly composed of pulegone (23.38%), isomen...
Article
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Bending and corrosion-induced cracks interact and impact the durability of Reinforced Concrete (RC) beams in a complex manner. Still, research on the mechanisms behind this interaction is limited. In this study, a 3D nonlinear finite element modelling method of RC beams was developed to explore this interactive mechanism. The models were assessed a...
Article
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Grain boundary (GB) segregation substantially alters structural and functional properties of metallic alloys, including strength, fracture mode, and corrosion resistance. A critical factor causing the variability in the segregation of solute atoms at GBs is the atomic structure of the boundary. GB segregation and its link with GB structure should t...
Cover Page
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"Submit a paper into the Special Issue of Crystals: https://www.mdpi.com/journal/crystals/special_issues/R3105XK6J8 The subjects treated in the papers can refer to: classic and new steels processed by classic and unconventional plastic deformation procedures, plasticity, fracture, admissible degree of plastic deformation, correlations between proc...
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Film forming amines (FFA) are corrosion inhibitors added to power plant water. The major concern associated with their application is the thermal stability in the high temperature power plant water medium, along with the risk of decomposition into low molecular weight organic acids that can cause corrosive damages in the water/steam cycle. However,...
Cover Page
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New Special Issue of Corrosion and Materials Degradation journal: "Corrosion and Corrosion Protection Strategies in the Marine Environment". Guest Editor: Prof. Dr. Ladislav Vrsalović Deadline: 31 July 2024
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The research study is aimed to design innovative bio-gel formulations able to tackle altered historical metal artworks in a green and sustainable perspective. The target of the research is the removal of undesired or altered materials of both inorganic (i.e., corrosion and tarnishing) and organic nature (i.e., protective coatings). The designed gel...
Conference Paper
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Aluminum is a commonly used material when cooling channels are required due to its high thermal conductivity and light weight. However, aluminum has a low corrosion resistance which is a key factor to be aware of when a cooling system utilizing water is required. Metal Technology Co. Ltd. (MTC) currently manufactures a variety of aluminum products...
Article
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Titanium-rich metastable medium-entropy alloys, designed for low elastic moduli, sacrifice strength. However, enhancing their mechanical strength is crucial for bio-implant applications. This study aims to enhance the mechanical properties and corrosion resistance of a metastable Ti80–Nb10–Mo5–Sn5 medium-entropy alloy using various treatments, incl...
Article
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Polymer thermal insulation materials are widely used in modern industry and technological production of energy carriers. Thermal insulation with polymer coatings is one of the main ways to protect thermal equipment from temperature effects, corrosion, cavitation, erosion, and other influences, reducing the consumption of expensive materials. Howeve...
Article
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Selective Laser Melting (SLM) is a manufacturing process that involves layer-by-layer fusion of metal powder material using a laser beam. AlSi10Mg alloy, a hypoeutectic aluminum-silicon alloy, is known for its favorable mechanical properties, low density, and corrosion resistance, making it widely used in various industries. While traditionally use...
Article
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Liquid storage tanks are designed to provide safety, facilitate maintenance, mitigate leakage and corrosion, and fulfill various safety requirements at both national and international levels. The failure of fuel storage tanks occurs mostly due to the formation of rust in the interior section of the tank which is a result of an imbalanced concentrat...
Article
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Ruthenium dioxide is the most promising alternative to the prevailing but expensive iridium-based catalysts for the oxygen evolution reaction in proton-exchange membrane water electrolyzers. However, the under-coordinated lattice oxygen of ruthenium dioxide is prone to over-oxidation, and oxygen vacancies are formed at high oxidation potentials und...
Article
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Compared with most dynamic tests, point load test is widely used in engineering practice because of its wide requirements for test conditions. In offshore mining engineering, the surrounding rock is affected by dynamic load impact and corrosion of various aqueous solutions for a long time. Therefore, it is of great significance to study the influen...
Article
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The excellent corrosion resistance of high-entropy alloys (HEAs) has attracted widespread attention in recent years. The focus of research is gradually shifting from the performance characterization to the composition design and application that balance multiple performance. In this study, the AlCrVTi light-weight HEA has been chosen to investigate...
Article
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In this study, Fe-MoB based hardfacing electrodes containing different amounts of Mo were coated on an AISI 1020 steel substrate using the electric arc welding method. The findings show that molybdenum is highly effective on the microstructure and minor changes in the coating composition affect the phases and morphological properties. In the hardne...
Article
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The corrosion inhibition of metals in seawater can be achieved by the addition of inhibitors to the system that prevent corrosion from taking place on the metal surface. The effect of ascorbic acid on carbone steel corrosion in seawater were investigated by means of different techniques: gravimetric method, electrochemical polarization and electroc...
Preprint
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The paper presents an experimental study for the evaluation of the flexural response and failure mode of a prestressed concrete (PC) beam subjected to simultaneous sustained loads and corrosion. The obtained results are judged and discussed also through a comparison with the experimental outcomes on a reference sound PC beam, and a companion specim...
Article
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The Zn metal anode in aqueous Zn batteries faces a number of challenges including instable deposition and corrosion issues. Here, we present an interface environment regulation for a Zn electrode with a low concentration electrolyte additive of 0.1 m 3-aminobenzenesulfonic acid (ASA). ASA prefers to adsorb on the Zn surface over water and creates a...
Article
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According to the National Association of Corrosion Engineers, erosion-corrosion costed the world economy approximately 2.5 trillion in 2020. In general, erosion precedes corrosion and both processes accelerate each other leading to major shutdown and maintenance costs. This research numerically investigates the erosion behavior of an electro-hydrau...
Article
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A numerical example allowing for effective forecasting of the remaining service time for corroded steel shell of a tank used to store liquid petroleum fuels is presented. This time is interpreted here as a period of time counted from the moment of an obligatory tank shell inspection to the moment of the anticipated shell failure understood as the l...
Article
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The initial corrosion rates of electrodeposited Zn-Ni coating under galvanostatic conditions are closely related to the current density. The NH4Cl 12-14 wt% Ni coating showed better corrosion resistance than the other investigated coatings due to the lower Ni content of 9 wt%. Moreover, nodular granules closely packed with capillary fissures, along...
Article
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This paper investigates the contact zone between the binder material, foam glass and its analogues such as block foam glass and sheet glass, using the detachment method. Data is presented on the detachment pattern and bond strength between the foam glass and the binder material, which in turn allows the quality of the contact zone to be assessed. T...
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Raziskava korozijskih uravnav v Sloveniji podaja sistematično klasifikacijo korozijskih uravnav na podlagi njihovih geoloških in morfoloških značilnosti. Klasifikacija jih združuje v štiri kategorije: kraški ravnik, suho kraško polje, robna uravnava kontaktnega krasa in robna uravnava fluviokrasa. Kraški ravniki so največji in nastanejo z denudacij...
Article
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In this study, the microstructure, texture, and mechanical properties of Mg–4Zn–1Mn–xCa (x = 0, 0.2, 0.5, wt%) alloys are studied. The thinwalled micro-tubes of Mg–4Zn–1Mn–xCa (x = 0, 0.2, wt%) alloy are fabricated by hot extrusion, and the microstructure and corrosion behaviors of micro-tubes are investigated. The results show that the addition of...
Conference Paper
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The data revealed that the anode and cathode had a mixed corrosion potential. When 4-bromophenethylamine corrosion inhibitor concentrations grow in tandem with temperature rises, the efficacy of weight loss, polarization, and impedance resistance techniques decreases. All of the activation energies, enthalpies, entropies, and free of adsorption ene...
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This study investigated the impact of different bismuth (Bi) contents on the mechanical properties, melting point, and corrosion resistance of tin–copper (Sn–Cu) series alloys (Sn–0.7Cu). Furthermore, Sn–0.7Cu–xBi alloys with different Bi contents (x = 0, 3, 6, 9, 12, 15 wt%) were prepared through a traditional casting process. The composition and...
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Studies the corrosion behavior of stainless steel 316L cladding using gas metal arc welding (MIG) techniques. The corrosion behavior was performed by potentiostat at scan rate 3mV.sec-1 in 3.5% NaCl to show the polarization resistance and calculate the corrosion rate from data of linear polarization by Tafel extrapolation method. The results indica...
Article
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En el presente trabajo se indica la metodología utilizada para consolidar soles estables y componer películas delgadas cerámicas de SiO2-ZrO2 y SiO2-TiO2, a partir del tetrabutóxido de titanio (TBT), tetra etil-ortosilicato (TEOS) y tetrabutóxido de zirconio (TBZ) utilizando el método SOL-GEL. El estudio se centró principalmente en la caracterizaci...
Article
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The development of energy storage systems (ESS) has become an important area of research due to the need to replace the use of fossil fuels with clean energy. Redox flow batteries (RFBs) provide interesting features, such as the ability to separate the power and battery capacity. This is because the electrolyte tank is located outside the electroch...
Article
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For the first time, the present study investigates the corrosion, surface, and subsurface properties of a shot-peened Ti6Al4V powder metallurgical alloy produced via pressure-assisted sintering. Shot peening yielded a fine-grained microstructure beneath the surface down to 100 microns, showing that it caused severe plastic deformation. XRD analysis...
Article
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This study explores the transformative potential of boriding to enhance the tribocorrosion resistance of mooring chain steel for offshore environments. The boride layers formed at various temperatures (800°C, 900°C, and 1000°C) for one hour, revealing high hardness (17– 21 GPa). X-ray diffraction confirmed dual-phase FeB and Fe2B borides, contribut...
Article
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Bone scaffolds play a crucial role in bone tissue engineering, providing mechanical support for the growth of new tissue while enduring static and fatigue loads. Although polymers possess favourable characteristics such as adjustable degradation rate, tissue-compatible stiffness, ease of fabrication, and low toxicity, their relatively low mechanica...
Research
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The inhibitory effects of Eucalyptus camaldulensis bark extract on the corrosion of mild steel in a nitric acid medium were investigated through weight loss measurement. Eucalyptus camaldulensis, commonly referred to as the river red gum, is a flowering plant species of the Myrtaceae family. The research found that the bark extract had the highest...
Article
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In numerous stainless steels, nitrogen is used as an alloying element to improve mechanical and corrosion properties. The typical nitrogen content is up to 0.5 pct. A common method for alloying is to blow nitrogen gas into an Argon Oxygen Decarburization (AOD) converter. Depending on the steel composition, operating practice, and process conditions...
Article
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The cables of suspension bridges are normally made of galvanized steel wires. Corrosion may happen with the galvanized steel wires from the surface after serving for a long time. We developed a compact, low-cost electromagnetic system to evaluate the corrosion of steel cables. AC magnetic field was produced by an excitation coil and eddy current wa...
Article
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Superhydrophobic nickel surfaces have significant advantages in the field of corrosion protection compared with traditional nickel corrosion protection methods which need a toxic chemical corrosion inhibitor. Electrochemical etching, an ideal method for fabricating superhydrophobic nickel surfaces, was also limited by low current density, resulting...
Article
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This study investigated the bond-slip mechanism of eccentrically pulled out rebar under different corrosion level. The variation patterns of the bonding performance between two types of steel rebars (i.e., plain round rebar and ribbed rebar) and concrete with different stirrup ratios were obtained with respect to the amount of steel rebar corrosion...
Article
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This paper presents a study on a new method of electroplating, using a high-density paste instead of traditional electrolytic solutions. The method was tested on iron samples, which were coated with copper. The thickness of the copper layer was measured using a leoi-44 experimental ellipsometer, revealing a thickness of 318 nm for the sample treate...
Article
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MOF (metal organic framework) materials have been used as functional materials in a number of fields due to their diverse spatial tunability, which produces rich porous structures with stable and continuous pores and a high specific surface area. A triboelectric nanogenerator can convert trace mechanical energy into electrical energy, and the appli...
Article
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The inhibition of zinc of hybrid Ti/Ce salt with 0, 100, 300, 600, 900, 1200, and 1600 ppm concentrations was investigated by weight-loss (WL) estimation and potentiodynamic polarization (PDP) in 1M HCl solution. The inhibition efficiency of hybrid Ti/Ce salt was evaluated as a corrosion inhibitor by immersing the Zn in it over a period extending u...
Article
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Impact angle is considered to be one of the main factors that influence the damage behavior of materials exposed to flowing lead-bismuth eutectic (LBE) conditions in Gen IV LBE-cooled fast reactors, especially in the areas where the flow changes its direction sharply, such as sudden expansions or elbows. In the current study, the corrosion-erosion...
Article
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The stress corrosion cracking (SCC) behaviors of over-aged and peak-aged AA7075 aluminum alloys in a 5%wt NaCl solution were compared. Even though the over-aging process induced intergranular corrosion (IGC), it decreased the SCC susceptibility of the material. Grain boundaries (GBs) with misorientation angles less than 30° and the grain matrix wer...
Article
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As in classical superalloys based on nickel or cobalt, MC carbides can be easily obtained in cast high entropy alloys (HEA) for enhancing their mechanical properties at high temperatures. These carbides may have also some influence on the hot oxidation properties. They can be also not neutral for the oxidation behavior. To explore their possible in...
Article
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Unavoidable nonmetallic inclusions generated in the steelmaking process are fatal defects that often cause serious corrosion failure of steel, leading to catastrophic accidents and huge economic losses. Over the past decades, extensive efforts have been made to address this difficult issue, but none of them have succeeded. Here, we propose a strate...
Article
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The influence of the aggressiveness of the environment and the variability of the saline soil properties on the operation of horizontally loaded piles is studied. The design scheme is taken in the form of a multi-span beam with a variable cross-section formed due to concrete corrosion (Winkler model) and stiffness coefficients. The calculated value...
Chapter
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The surface crack of the workpiece is similar to the background and the background is complex. In the detection process, problems such as missed detection, false detection, and difficulty in detection are prone to occur. To solve the above problems, this research proposes a workpiece surface crack detection technique based on morphology and improve...
Article
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Computational prediction of corrosion rates is still a challenging issue in the field of metal corrosion. In this study, we proposed a computational model to predict the corrosion rates of copper in the presence of adsorption-type corrosion inhibitors using density functional theory calculations, microkinetic simulation, and machine learning. The m...
Article
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The results of the analysis of the Co-Cr alloys properties for biocompatible medical products are presented. The article shows that alloys of the Co-Cr system doped with molybdenum are mainly used as the main materials for the manufacture of orthopedic and dental implants, alloys of the Co-Cr-W system are promising for the manufacture of coronary a...
Article
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Corrosion poses a significant risk to the safety of energy pipelines, while landslide disasters emerge as the primary threat responsible for triggering pipeline failures across mountainous areas. To date, there is limited research focused on the safety of energy pipelines considering the synergistic effect of corrosion and landslides. The present s...
Article
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The mechanical and corrosive properties of AA7075 alloy reinforced with rice husk ash (RHA) particles were studied. AA7075 matrix composite reinforced with varying percentage weight compositions of rice husk ash particles (5%, 10%, 15% and 20% wt.) were prepared using stir casting technique. The mechanical, and corrosive properties of the new mater...
Article
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In this study, AA1060/Alumina composites were fabricated by combined stir casting and accumulative press bonding (APB). The APB process was repeated up to six press bonding steps at 300Ċ. As the novelty, potential dynamic polarization in 3.5Wt% NaCl solution was used to study the corrosion properties of these composites. The corrosion behavior of t...
Article
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Water accumulation in air conditioning (AC) drain pans can lead to corrosion and subsequent leaks, impacting AC system performance. This study focuses on implementing a monitoring system to track water levels and promptly discharge water to prevent corrosion. Using a research and development approach, the study evaluated the water level sensor's pe...
Article
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Co-based alloys are promising alternatives to replace the currently used tool steels in aluminum die-casting molds for producing sophisticated products. Although the reaction is significantly less severe compared to that of tool steels, bare Co-29Cr-6Mo (CCM) alloy is still gradually corroded under molten Al, leading to the local failure of the all...
Article
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Zr-based bulk metallic glasses (BMGs) possess unique mechanical and biochemical properties, which have been widely noticed. Jet electrochemical machining (jet-ECM), characterized by a high-speed jet, is a non-contact subtractive method with a high resolution and a high material removal rate (MRR). Past work on the electropolishing of Zr-based BMGs...
Article
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The Colossus of San Carlo Borromeo, named San Carlone for its large dimensions, represents a unique opportunity to study the long-term effects of atmospheric corrosion on patina formation on historic copper sheets. The sculpture’s large dimensions, complex geometry, direct visitor interaction, and exposure conditions generate different microclimate...
Technical Report
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Hydrogen Stress Cracking (HSC) corrosion poses a formidable threat to the structural integrity of crucial components in the oil and gas industry. This report aims to provide an in-depth examination of the impact of HSC, placing a strong emphasis on potential risks and highlighting essential mitigation strategies. The analysis spans across the intri...
Cover Page
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The call for contributions for the 4th edition of the Corrosion Atlas Case Studies series book is open now; please see the link below: https://www.materialstoday.com/corrosion-atlas-vol-iv-call-for-case-studies