Corrosion
Browse 60 curated documents about corrosion in The Archive — the 2RA-Edition digital library for engineering and scientific research. This collection of books, journal articles, theses, reports, and technical documents on corrosion spans extractive metallurgy, mining engineering, chemistry, and applied science. Every document is searchable in full text; sign in to read, download, ask AI questions about any document, or generate cited research drafts with the AI Researcher.
The Corrosion Properties of Bronze Alloys in NaCl Solutions
Zhiqiang Song, Ojiyed Tegus
Chloride ions play an important role in the corrosion of bronze through their active reactivity to copper alloys. The corrosion behavior of bronze alloys in NaCl solution was investigated by using X-ray diffraction (XRD), a scanning electron microscope (SEM), and electrochemical tests, with a special emphasis on the corrosion resistance of the α and δ phases in Cu-20 wt%Sn bronze alloys. The exper
Influence of Heat Treatment Parameters of Austempered Ductile Iron on the Microstructure, Corrosion and Tribological Properties
Halina Krawiec, Janusz Lelito
The influence of heat treatment parameters such as the annealing time and austempering temperature on the microstructure, tribological properties and corrosion resistance of ductile iron have been investigated. It has been revealed that the scratch depth of cast iron samples increases with the extension of the isothermal annealing time (from 30 to 120 min) and the austempering temperature (from 28
Predicting the Performance of Organic Corrosion Inhibitors
David A. Winkler
The withdrawal of effective but toxic corrosion inhibitors has provided an impetus for the discovery of new, benign organic compounds to fill that role. Concurrently, developments in the high-throughput synthesis of organic compounds, the establishment of large libraries of available chemicals, accelerated corrosion inhibition testing technologies, and the increased capability of machine learning
Corrosion and Corrosion Protection of Additively Manufactured Aluminium Alloys—A Critical Review
Reynier I. Revilla, Donovan Verkens
Metal additive manufacturing (MAM), also known as metal 3D printing, is a rapidly growing industry based on the fabrication of complex metal parts with improved functionalities. During MAM, metal parts are produced in a layer by layer fashion using 3D computer-aided design models. The advantages of using this technology include the reduction of materials waste, high efficiency for small production
Corrosion Protection Systems and Fatigue Corrosion in Offshore Wind Structures: Current Status and Future Perspectives
Seth J. Price, Rita B. Figueira
Concerns over reducing CO2 emissions associated with the burning of fossil fuels in combination with an increase in worldwide energy demands is leading to increased development of renewable energies such as wind. The installation of offshore wind power structures (OWS) is one of the most promising approaches for the production of renewable energy. However, corrosion and fatigue damage in marine an
Recent Progress of Polymeric Corrosion Inhibitor: Structure and Application
Xuanyi Wang, Shuang Liu
An anti-corrosion inhibitor is one of the most useful methods to prevent metal corrosion toward different media. In comparison with small molecular inhibitors, a polymeric inhibitor can integrate more adsorption groups and generate a synergetic effect, which has been widely used in industry and become a hot topic in academic research. Generally, both natural polymer-based inhibitors and synthetic
Étude des causes de la détérioration des cathodes inoxydables dans la salle d’électrolyse « cas d’EW2 à KCC »
LUBAVU KAPYA Naomie, Dr .Ir jhon KASONGO WA KASONGO
Cette étude traite de la dégradation prématurée des cathodes permanentes en acier inoxydable 316L et de la baisse marquée de la durée de vie de leurs bandes isolantes latérales (blinx) au sein de la salle d’électro-obtention EW2. L’intégrité de ces bordures polymériques est essentielle pour prévenir les dépôts parasites de cuivre et assurer un pelage mécanique propre. L’infiltration d’électrolyte
Degradation prématurée des cathodes permanentes en acier inoxydable 316L
Moats, M., Robinson, J.
This study addresses the premature degradation of 316L stainless steel permanent cathodes and the significant reduction in the service life of their side insulating strips (blinks) within the EW2 electro-winning cellhouse. The structural integrity of these polymeric borders is essential to prevent parasitic copper deposition and ensure clean mechanical peeling. The infiltration of electrolyte unde
Tailoring the grain boundary precipitates and precipitate-free zone to mitigate corrosion and stress corrosion cracking in Al-Zn-Mg-Cu alloy
Yajie Yang, Ya Wu
The static corrosion and stress corrosion cracking (SCC) behaviors of peak-aged Al-Zn-Mg-Cu alloys were systematically investigated as a function of Zn/Mg ratio and Si microalloying, while maintaining constant total Zn and Mg contents. Within the peak-aging regime, reducing the Zn/Mg ratio and adding Si both refine the grain structure. Concurrently, a lower Zn/Mg ratio coarsens grain boundary prec
Real-time tomography of stress corrosion cracking on stainless steel by an in-situ corrosion tensile test
Kuo Yuan, Sharif Ahmed
This study investigates the real-time tomography of stress corrosion cracking on stainless steel using an in-situ corrosion tensile test. The objective is to develop a comprehensive understanding of the corrosion behaviors of thermally sensitized 304 and 20/25/Nb stainless steels. Methodologically, the researchers employed X-ray tomography at a synchrotron beamline to visualize the three-dimension
Sustainable Epoxy Coatings with Lemna Minor Extract-Loaded Diatomaceous Earth for Enhanced Corrosion Protection.
Abolfazl Hasanzadeh, Inime Udoh
This study explores the development of sustainable epoxy coatings utilizing Lemna minor extract-loaded diatomaceous earth to enhance corrosion protection. The primary objective is to investigate the effects of natural additives on the performance and environmental impact of epoxy coatings. A systematic approach was taken to prepare the coatings by incorporating varying concentrations of Lemna mino
Surface engineering by non-equilibrium plasma remelting processing for supreme stress corrosion cracking protection
Shiqi Ma, Toushiqul Islam
The degradation of stainless steels (SS) in corrosive environments severely limits their long-term service reliability. While numerous bulk and surface processing techniques have been employed to prevent stress corrosion cracking (SCC) in SS, their success in mitigating this form of corrosion has been limited. To address this situation, we need to resolve challenges that persist in retaining passi
Distinct microstructural contributions to intergranu 2026 Journal of Alloys
Jingyun Fu, Guofu Xu
Aging-induced precipitation strongly affects the corrosion behavior of Al – Li alloys, yet intergranular corrosion (IGC) and stress corrosion cracking (SCC) may respond differently to changes in precipitation and grain-boundary microstructure. In this work, the precipitation behavior, grain-boundary microchemistry, electrochemical response, corrosion-induced hydrogen absorption, IGC susceptibility
Materials 2025, 18, 2207
Željko Stojanović, Bojan Gligorijević
Despite the surge in plasma nitriding research, few reviews thoroughly examine how surface decarburization—occurring both before and during the treatment—affects AISI 4140 and similar steel grades. This review addresses that shortfall by providing an investigation into the decarburization process and its consequences. It compiles essential findings from prior studies, demonstrating instances of de
Crevice corrosion testing methods for measuring repassivation potential of alloy 22
C. M. Giordano, M. Rinco´n Ortı´z
Alloy 22 (UNS N06022) belongs to the Ni–Cr–Mo family and is known for its high resistance to both general and localized corrosion; however, it is susceptible to crevice corrosion under aggressive environmental conditions. The objective of this study is to compare various electrochemical methods for determining the repassivation potential of alloy 22, including cyclic potentiodynamic polarization,
Morphological Changes During Annealing of Electrodeposited Ni-Cr Coating on Steel and Their Effect on Corrosion in 3% of NaCl Solution
Manpreet Singh Marwah, Vajjala Srinivas
Steel containing carbon of 0.2% was coated with Ni and Cr through electrodeposition, and subsequently annealed at 400 and 600 °C for various durations. During annealing at 400 °C, the formation and growth of oxides occurred in the form of petals along with voids, cracks, and porosities. However, at 600 °C, nucleation and growth of chromium oxide whiskers produced a surface almost free from defects
The evolution of crevice corrosion damage on the Ni–Cr–Mo–W alloy-22 determined by confocal laser scanning microscopy
P. Jakupi, J.J. Noël
Crevice corrosion of alloy-22 was studied galvanostatically (10–200lA) at 120°C–176°C in 5 M NaCl. Corrosion damage was analyzed by confocal laser scanning microscopy to obtain penetration profiles. Three-dimensional images demonstrate that damage morphologies varied with applied current. At low applied currents (670 lA), propagation predominantly leads to penetration into the alloy, whereas at hi
LOCALIZED CORROSION SUSCEPTIBILITY OF COPPER-NICKEL ALLOYS IN CHLORIDE CONTAINING ENVIRONMENTS
Marta A. Jakab, Andre M. Anderko
Under alkaline conditions, copper-nickel alloys are covered by passive oxide films containing Cu and Ni oxides. In chloride ion containing environments, they are therefore susceptible to localized corrosion. This paper investigates the susceptibility of selected Cu-Ni alloys (UNS C70600, UNS C71500, and UNS N04400) to localized corrosion by measuring the crevice stabilization and repassivation pot
Influence of Chromium and Molybdenum on the Corrosion of Nickel Based Alloys
J. R. Hayes, J. J. Gray
The addition of chromium and molybdenum to nickel creates alloys with exceptional corrosion resistance in a diverse range of environments. This study examines the complementary roles of Cr and Mo in Ni alloy passivation. Four nickel alloys with varying amounts of chromium and molybdenum were studied in 1 molar salt solutions over a broad pH range. The passive corrosion and breakdown behavior of th
Environmental and Geometrical Conditions to Sustain Crevice Corrosion in Alloy 22
R. M. Carranza, M. A. Rodríguez
Alloy 22 (N06022) is highly resistant to localized corrosion. Under aggressive environmental conditions, Alloy 22 may be susceptible to crevice corrosion in hot chloride (Cl-) solutions. The objective of the present work was to explore the environmental and geometrical conditions for crevice corrosion to occur. Electrochemical tests were performed using PCA and prismatic mill annealed Alloy 22 spe
Electrochemical Corrosion and Surface Analyses of a Ni-Cr Alloy in Bleaching Agents
Evs¸ en T amam, A. Kevser Aydın
The aim of this study was to evaluate the corrosion behavior of a Ni-Cr dental casting alloy subjected to 10% hydrogen peroxide (HP) and 10% carbamide peroxide (CP) bleaching solutions, as well as to determine the composition of the surface oxide layer formed on the alloy specimens. Ten cylindrical specimens (4 mm in diameter × 25 mm in height) were cast from a Ni-Cr alloy (Wiron 99) and divided i
Effect of Potential on Crevice Corrosion Kinetics of Alloy 22
M.A. Rodríguez, R.M. Carranza
Alloy 22 (UNS N06022) is a Ni-Cr-Mo alloy, highly resistant to localized corrosion, with applications in high-level nuclear waste containers. This study aims to investigate the effect of potential on the kinetics of chloride-induced crevice corrosion of Alloy 22 at 90°C. Electrochemical tests, including cyclic potentiodynamic polarization (CPP) curves and electrochemical impedance spectroscopy (EI
Investigating the Role of Mo and Cr during the Activation and Passivation of Ni-Based Alloys in Acidic Chloride Solution
Jeffrey D. Henderson, Xuejie Li
The elemental dissolution behaviour of commercially available Ni-based alloys was investigated in the context of surface activation, spontaneous passivation, and electrochemically-assisted passivation in hydrochloric acid solution using atomic emission spectroelectrochemistry (AESEC). Following surface activation, the spontaneous passivation of each alloy was found to proceed by the accumulation o
Accelerated corrosion of marine-grade steel by a redox-active, cysteine-rich barnacle cement protein
Vinod K. Murugan, Harini Mohanram
A serious consequence of marine biofouling on metallic structures is the insidious localized corrosion at the attachment sites of fouling organisms, such as barnacles. In this work, we study the contribution to biofouling corrosion by a protein contained in the adhesive cement that barnacles secrete to attach to immersed substrates. We synthesize a specific cement protein of 20 kDa (CP20) from the
Effect of environmental variables and main alloying elements on the repassivation potential of Ni–Cr–Mo–(W) alloys 59 and 686
Edgar C. Hornus, Martín A. Rodríguez
Chloride-induced crevice corrosion (E_R,CREV) of alloys UNS N06059 and UNS N06686 was studied at different temperatures in 0.1, 1 and 10 M chloride solutions. Crevice corrosion occurred several degrees below the reported critical crevice temperatures obtained through standard immersion tests. The repassivation potential of the tested alloys as a function of temperature and chloride concentration w
Crevice corrosion testing methods for measuring repassivation potential of alloy 22
C. M. Giordano, M. Rinco´n Ortı´z
Alloy 22 (UNS N06022) is known for its high resistance to general and localized corrosion, but it can be susceptible to crevice corrosion under aggressive environmental conditions. This study aims to compare various electrochemical methods for measuring the repassivation potential of alloy 22, specifically employing techniques such as cyclic potentiodynamic polarization, Tsujikawa–Hisamatsu electr
Crevice Corrosion Repassivation of Ni Cr
Edgar C. Hornus, Martín A. Rodríguez
Ni-Cr-Mo alloys offer outstanding corrosion resistance in hot chloride solutions. Crevice corrosion is the expected form of localized corrosion since pitting corrosion requires very harsh conditions to occur in Ni-Cr-Mo. Crevice corrosion may proceed only if specific conditions are met: temperature and potential, for instance, should be above the critical values for each alloy. The classical appro
CORROSION RESISTANCE OF Ni Cr Mo AND Ni
Natalia S. Zadorozne, Martín A. Rodríguez
Ni-Cr-Mo alloys offer an outstanding corrosion resistance in a variety of highly-corrosive environments. This versatility is due to the beneficial effects of Cr and Mo in oxidizing and non-oxidizing conditions, respectively. Alloy 22 (Ni-22%Cr-13%Mo-3%W) is a well-known member of this family, while alloys Ni21Cr17Mo and Ni15Cr22Mo have been introduced recently. The aim of the present work was to c
Corrosion Process Development Of A Ni Cr
L.L. Sousa, J.W.J. Silva
The 59.6% Ni, 24.0% Cr and 9.8% Mo alloy, used in dental prosthesis was recast in open fire - oxy-GLP torch and naturally cooled. The electrochemical study has shown that the alloy has behavior similar to chrome, displaying an extensive passivity area due to formation of a chrome oxide layer. The development study of corrosive process was carried out by interrupting the potentiodynamic polarizatio
Properties of the Passive Film on Alloy
Martı ´n A. Rodrı ´guez, Ricardo M. Carranzaz
This study investigates the properties of the passive film formed on Alloy 22 in chloride solutions through electrochemical impedance spectroscopy. The primary objective was to analyze the behavior of the passive and transpassive ranges at a temperature of 90°C in 1 M NaCl. The methodology involved utilizing a RX-(R//CPE) circuit model to interpret the impedance data across a range of chloride con
Passivation and Depassivation of Alloy 2
Martín A. Rodríguez, Ricardo M. Carranza
Alloy 22 is a Ni–Cr–Mo alloy known for its exceptional corrosion resistance in harsh environments. This study aims to investigate the general corrosion behavior of Alloy 22 in both passive and active states while assessing the transition between these states in acidic chloride solutions at elevated temperatures (90 °C). Employing electrochemical techniques, including impedance spectroscopy and pol
Effect of Weak Acid Additions on the Gen
Ricardo M. Carranza, C. Mabel Giordano
Electrochemical studies such as cyclic potentiodynamic polarization (CPP) and electro-chemical impedance spectroscopy (EIS) were performed to determine the corrosion behavior of Alloy 22 (N06022) in 1M NaCl solutions at various pH values from acidic to neutral at 90ºC. All the tested material was wrought Mill Annealed (MA). Tests were also performed in NaCl solutions containing weak organic acids
Corrosion Behavior of Alloy 22 in Chlori
R. M. Carranza, C. M. Giordano
Alloy 22 (N06022) is a nickel-based alloy known for its high corrosion resistance in both reducing and oxidizing environments. This study aims to examine the corrosion behavior of Alloy 22 in 1M NaCl solutions across a range of pH values, from acidic to neutral, at an elevated temperature of 90ºC. Using electrochemical impedance spectroscopy (EIS), various tests were conducted, including evaluatio
CBMM – Stainless Steels with Niobium (Nb)
Caio Pisano
This document presents a comprehensive overview of stainless steels with a specific emphasis on the benefits of niobium. The objective is to educate stakeholders on the metallurgical concepts that define various stainless steel families, their corrosion resistance, and the novel contributions of niobium to enhance material performance. The methodology includes a detailed analysis of stainless stee
745421226 978 3 031 50176 0 PyroFurnaceContainment
Gerardo R. F. Alvear Flores, Camille Fleuriault
This document addresses the advancements in pyrometallurgy, focusing on the containment of furnaces used in high-temperature material processing. The objective of this work is to highlight innovative methods and materials that enhance the efficiency and safety of pyrometallurgical processes. A comprehensive review methodology was employed, collating contributions from various experts in the field
Tribological and Corrosion Behavior of Cold Sprayed Fe-Based Bulk Metallic Glass Coating on Aluminum Alloy
Oluwasegun Emmanuel Adesola
Aluminum alloys are vital to the aerospace, marine and automobile industries due to their lightweight, high specific strength, and good corrosion resistance. However, despite these favorable characteristics, they suffer rapid deterioration under severe friction and wear conditions, making surface engineering and coating imperative for use in several industrial applications where high wear resistan
2026 Hu 3Cr Steel High Salinity Corrosion
Hangbo Hu, Yanming Liu
To investigate the corrosion behavior and mechanisms of 3Cr steel under high-salinity, high-Ca2+, and O2–CO2 conditions, we simulated the service environment of a western China oilfield (total salinity 250,022 mg/L, Ca2+ > 15,400 mg/L). Immersion and electrochemical tests were conducted at 120 °C under 0.5 MPa CO2 with O2 partial pressures from 0 to 0.4 MPa. The results showed that the uniform cor
2026 Firat AM60B Investment Cast Foam
Tugay Firat, Melik C¸ etin
In this study, open-cell structured AM60B magnesium alloy foam-like structures with regular architectures were successfully produced using the investment casting method. The fabricated foam samples were designed in three different cell geometries Kelvin, pyramid, and cylinder, each with three distinct pore configurations. The designs were created using SolidWorks, and the model materials were manu
2026 Kleinhans AlSi7Mg03 Casting Alloy Properties
Robert Kleinhans, Manuel Pintore
With increasing use of secondary material certain alloying elements may accumulate over repeated melting cycles. To determine the influence of Fe, Mn, Cu and Zn on the technological properties of AlSi7Mg0.3 cast alloy three compositions with varying additions of these elements to a primary alloy melt were produced. Gravity die-casting experiments using a tensile sample permanent mold were conducte
Effect of Graded Bias Voltage on the Microstructure of arc-PVD CrN Films and its Response in Electrochemical & Mechanical Behavior
M.L. Cedeño-Ventéa, D.G. Espinosa-Arbeláeza
The effect of graded or constant bias voltages (-40 V, -80 V and -40/60/80 V) on size grain and surface defects of arc PVD deposited CrN films was investigated. Corrosion resistance evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic curves (Tafel) and the mechanical behavior evaluated by means of instrumented nanoindentation and scratch testing was correlated with the
2025 Serin Sn Cu Al Mg Thermal Fatigue
Nimet Selin Serin, Berke Soy
In the present study, lead-free Sn–Cu–Al–Mg-based solder alloys for electronics packaging were produced. Effects of thermal shock and thermal stress on the crack formation in the Sn-based solder alloys were investigated. Lead-free quaternary Sn–Cu–Al–Mg-based solder alloys were produced by using mechanical alloying and powder metallurgy route. Soldering involves using a molten filler metal to wet
02 NdFeB Oxidation Recovery Review
Dijina Asarinte Valappil, Krishnan S. Raja
A systematic understanding of the oxidation behavior of Nd–Fe–B permanent magnets is crucial for correlating oxidation-induced phases and microstructural transformations with magnetic degradation, corrosion susceptibility, and the efficiency of oxidation-based neodymium recovery during end-of-life magnet recycling. Despite extensive research, the underlying mechanisms, kinetics, and thermodynamic
Investigation on corrosion behavior of WE43 Mg alloy for biomedical applications through magnetron sputtered coatings
R. Vignesh, Jose Immanuel
This study investigates the corrosion behavior of the WE43 magnesium alloy, recognized for its potential as an orthopedic biomaterial, particularly due to its lightweight and biocompatible properties. The objective was to explore how magnetron sputtered coatings can enhance its corrosion resistance in physiological environments, which is critical for its application in biomedical fields. A series
Corrosion Behavior of Cold-Sprayed 316L Coatings: Effects of Deposition Temperature and Surface Condition
Brenda Juliet Martins Freitas, Vinicius Gustavo da Cruz
The passivation behavior of cold-sprayed 316L stainless steel coatings deposited onto SAE 1020 carbon steel was investigated with particular emphasis on the influence of surface condition and deposition temperature. Coatings produced at gas temperatures of 650-825 °C exhibited thicknesses of approximately 450-520 µm and porosity levels of around 5-7 vol.%, with microstructures characterized by int
Anticorrosive and Hydrophobic Ni-Co Coatings Produced Using Simple Pulse Electrodeposition
Lucas F.S. Dias, Antonio V.C. Braga
Ni-Co alloy coatings exhibit well-known properties, including mechanical, wear, and anticorrosive resistances, high magnetic performance, thermal stability at high temperatures, and good adhesion. However, these coatings exhibit hydrophilic characteristics, which hinder their applications under high-humidity conditions (e.g., in solar panels or anti-freeze systems). Many studies have focused on th
High-frequency induction heat sintering of 316L stainless steel: a systematic investigation of ultra-low-pressure processing, microstructure, and corrosion performance
Ayman Mahmoud Fahim, Tamás Mikó
The present work provides a systematic evaluation of direct pressure-assisted High-Frequency Induction Heat Sintering (HFIHS) of gas-atomized 316 L stainless steel powder at 40 MPa and approximately 50 kHz, across a temperature range of 1000–1150 °C, with a 5 min hold at approximately 1 × 10⁻³ Torr. This study investigates the relative density, Vickers hardness, maximum compressive stress, microst
A Unifying Review of Breakaway Oxidation in Early Transition Metals at High Temperatures
Isha Gupta, Shalini Tripathi
Early transition metals from Groups IV to VI are critical for maintaining structural integrity at high temperatures. However, their performance is often limited by breakaway oxidation, the transition from initially protective oxide growth to accelerated, non-protective oxidation. Despite decades of research, the underlying mechanisms remain unresolved, even within individual metals. This review ar
Review on Oxidation of Nd–Fe–B Magnets: Mechanisms, Kinetics, and Implications for Neodymium Recovery
Dijina Asarinte Valappil, Krishnan S. Raja
A systematic understanding of the oxidation behavior of Nd–Fe–B permanent magnets is crucial for correlating oxidation-induced phases and microstructural transformations with magnetic degradation, corrosion susceptibility, and the efficiency of oxidation-based neodymium recovery during end-of-life magnet recycling. Despite extensive research, the underlying mechanisms, kinetics, and thermodynamic
2026 Morais Metallographic Etching Duplex Welds
Nathanael Wagner Sales Morais, Bruno Nogueira
Six etchants for metallographic preparation of AISI 2205 duplex stainless-steel welded joints were investigated. Three chemical reagents (Kalling No. 2, Vilella, and Modified Vander Arend) and three electrolytic etchants (40% KOH, 10% oxalic acid, and saturated ammonium persulfate) were evaluated. Kalling No. 2 and modified Vilella produced clear ferrite (δ)–austenite (γ) contrast in the base and
Corrosion Behavior of Cold-Sprayed 316L Coatings: Effects of Deposition Temperature and Surface Condition
Brenda Juliet Martins Freitas, Vinicius Gustavo da Cruz
The passivation behavior of cold-sprayed 316L stainless steel coatings deposited onto SAE 1020 carbon steel was investigated with particular emphasis on the influence of surface condition and deposition temperature. Coatings produced at gas temperatures of 650-825 °C exhibited thicknesses of approximately 450-520 μm and porosity levels of about 5-7 vol.%, showing microstructures characterized by i
Effect of Graded Bias Voltage on the Microstructure of arc-PVD CrN Films and its Response in Electrochemical & Mechanical Behavior
M.L. Cedeño-Ventéa, D.G. Espinosa-Arbeláeza
The effect of graded or constant bias voltages (-40 V, -80 V and -40/60/80 V) on size grain and surface defects of arc PVD deposited CrN films was investigated. Corrosion resistance evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic curves (Tafel) and the mechanical behavior evaluated by means of instrumented nanoindentation and scratch testing was correlated with the
Synergistic enhancement of corrosion resistance in anodized aluminum alloy via graphene oxide and layered double hydroxide hybrid coatings
Daquan Zhang, Yaxin Wang
The inherently porous structure of the anodized aluminum alloys can significantly compromise their corrosion resistance in various environments. In this study, we develop a novel approach to address this challenge by electrodepositing graphene oxide (GO) onto the anodic oxide (AO) film of aluminum alloys, followed by the assembly of layered double hydroxide (LDH) nanosheets on the GO/AO substrate.
2026 Veverkova Zr15Nb Phase Transformations (1)
Anna Veverkova, Kristina Bartha
This study examines the phase transitions occurring during linear heating of the Zr15Nb alloy through a comprehensive, multi-technique methodology comprising in situ high-energy synchrotron X-ray diffraction (HEXRD), electrical resistance measurements, differential scanning calorimetry (DSC) and thermal expansion analysis, supplemented by ex situ transmission electron microscopy (TEM). The finding
2026 SanchezGil Ti6Al4V TiN Corrosion
S. Sánchez-Gil, C. Sánchez de Rojas Candela
The electrochemical corrosion behaviour of Ti6Al4V metal matrix composites reinforced in situ with TiN ceramic phases was investigated. The composites were fabricated by Direct Laser Deposition (DLD) under a nitrogen atmosphere at two scanning speeds (5 and 10 mm/s), which promoted the formation of TiN during processing. Microstructural analysis using SEM and XRD confirmed a uniform distribution o
2026 Avci Laser Glazed Environmental Barrier Coating
Ali Avci, Muhammet Karabas¸
Environmental barrier coatings (EBCs) were developed to protect SiC/SiC CMCs used in the hot sections of new-generation gas turbine engines from corrosion. Plasma-sprayed YbSi is deposited as an EBC top layer, mostly in the amorphous phase. Plasma spraying inherently creates cracks and porosity on the surface. These disadvantages prompted the study to explore laser glazing as a solution. The surfa
2026 Kharytonau Chitosan Phosphate WE43 Coatings
Dzmitry S. Kharytonau
Chitosan-based coatings can be effectively used for tailoring degradation profiles of biomedical magnesium alloys. In this work, chitosan-phosphate coordinated coatings were for the first time deposited on WE43 magnesium alloy by the electrophoretic deposition approach. Scanning electron microscopy, X-ray photoelectron spectroscopy, atomic force microscopy, and Fourier-transform infrared spectrosc
2024 Kaya 2D Hexagonal Boron Nitride Anticorrosion Coatings
Onurcan Kaya, Luca Gabatel
The corrosion of metallic surfaces poses significant challenges across industries such as petroleum, energy, and biomedical sectors, leading to structural degradation, safety risks, and substantial maintenance costs. Traditional organic and metallic coatings provide some protection, but their limited durability and susceptibility to harsh environmental conditions necessitate the development of mor
2016 Daneshvar CNT Metal Corrosion Coatings Review
Farhad Daneshvar
Corrosion is an inevitable phenomenon that is inherent in metals and even though there has been significant research on this subject, no ideal protection has been discovered to fully prevent corrosion. However, methods such as using protective coatings and modifying the structure or composition of the material have been used to slow down gradual corrosion and fortunately they proved to be quite be
2025 Navidtehrani Multiphysics Phase Field Fracture
Yousef Navidtehrania, Covadonga Betegóna
We present a novel, generalised formulation to treat coupled structural integrity problems by combining phase field and multi-physics modelling. The approach exploits the versatility of the heat transfer equation and is therefore well suited to be adopted in commercial finite element packages, requiring only integration point-level implementation. This aspect is demonstrated here by implementing c
Failure investigation of a cooling coil tube in zinc roaster furnace
M. Ananda Rao, R. Sekhar Babu
The failure analysis of a cooling coil tube employed to extract the sensible heat of roasted zinc sulfide ore in a fluidised bed furnace type roasting unit was reported. The coils are prone to service degradation and subsequent failure due to the extreme operating conditions (920–960 °C). Severe corrosion attack and cracks were seen on the outer surface of the tube upon visual examination. The opt