Article
Materials Science, Multidisciplinary
Xiao-Yan Zhao, Cong-Qian Cheng, Dong-Jiu Zhang, Yi-Ning Zhao, Tie-Shan Cao, Sheng Zhong, Lei Zhang, Jie Zhao
Summary: The pitting behavior of 2205 duplex stainless steel after U-bending deformation was investigated under wet-dry cycling of droplets. At the tensile side, the average critical relative humidity for pitting (RHpit) was increased from 44.5% to 55.6%, the critical relative humidity (RHrep) for repassivation was correspondingly increased from 59.9% to 76.6%. The compressive strain increased the critical relative humidity to 52.9% (RHpit) and 73.3% (RHrep), respectively. Compared to the hemispherical pits without deformation, selective dissolution of the ferrite phase with irregular pits appeared on the tensile side. The decrease in pitting resistance and the formation of irregular pit morphology were discussed.
Article
Chemistry, Physical
Gengxin Li, Min Du, Jing Wang, Guosheng Huang, Li Ma
Summary: Stainless steels in marine engineering equipment are prone to corrosion from severe environments and hydrogen. This study investigates the corrosion behavior and mechanism of 2205 duplex stainless steel in alternating dry/wet marine environment after hydrogen charging. The results show a decrease in film resistance, passive current density, and an increase in surface pits, indicating a reduction in corrosion resistance. The synergistic effect of high concentrations of Cl- and hydrogen accelerates the destruction of the passive film, leading to further corrosion of stainless steels. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Mechanics
Han Li, Shanhua Xu, Youde Wang, Cuimei Song
Summary: The study reveals that the wet-dry cycling environment significantly impacts the bond behavior between CFRP and corroded steel negatively; specimens with smaller non-uniform volume loss ratios, larger pit densities and moderate pit sizes may exhibit higher bond strengths.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Jiayu You, Zhuying Li, Yongqing Li, Zhihai Cai
Summary: A self-designed welding flux was successfully used for underwater wet welding of a 5 mm thick 0Cr25Ni6Mo3N duplex stainless steel in 6 mm simulated seawater. The microstructure of the weld centre, heat-affected zone, and base metal were examined, and the microstructural evolution mechanism and phase transition process of the fusion zone were analyzed. The tensile strength of the specimens reached 95.3% of the base metal's tensile strength, with an average elongation of 35.5%. The fracture microstructure showed a mixed fracture type with cleavage steps and a small number of tendons. The Vickers microhardness test results indicated average values of 297.7 HV for the weld center and 278.0 HV for the heat-affected zone. Electrochemical tests revealed that the weld had better corrosion resistance but weaker passivation ability compared to the base metal.
MATERIALS TODAY COMMUNICATIONS
(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
Construction & Building Technology
I. Ezzeldin, H. El Naggar, J. Newhook, G. Jarjoura
Summary: In-service monitoring of buried corrugated metal pipes and culverts is crucial to prevent sudden failure due to prolonged corrosion. This paper proposes an accelerated laboratory corrosion test to simulate the effects of chloride deposits on buried corrugated mild steel structures. The test shows that increasing the number of wet/dry cycles accelerates the corrosion and deterioration in steel strength, ductility, and hardness. The paper also presents a mathematical model for predicting corrosion damage based on physicochemical indicators.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Heon-Young Ha, Kyeong-Won Kim, Seong-Jun Park, Chang-Hoon Lee, Tae-Ho Lee, Hyun-Uk Hong, Joonoh Moon
Summary: Fe-20Mn-11.5Al-1.4C-5Cr lightweight stainless steel (LWSS) has equivalent or better resistance to pitting corrosion compared to Fe-11Cr stainless steel (SS), which can be attributed to its protective passive film with higher Cr and Al content, thicker thickness, and lower concentration of point defects.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
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
Materials Science, Multidisciplinary
Ying Xiao, Junlei Tang, Yingying Wang, Bing Lin, Zhen Nie, Yunfei Li, Bernard Normand, Hu Wang
Summary: The corrosion behavior of 2205 duplex stainless steel in sulfide-containing NaCl solutions at different pH values was investigated. It was found that the addition of Na2S could improve the pitting resistance of 2205 DSS in 0.8 g/L NaCl solutions, but had different effects in 35 g/L NaCl solutions depending on the pH value.
Article
Materials Science, Multidisciplinary
Shufeng Yang, Zhichao Che, Chao Liu, Wei Liu, Jingshe Li, Xuequn Cheng, Xiaogang Li
Summary: The effect of tellurium (Te) on the localised corrosion mechanism in 15-5PH stainless steel in a simulated marine environment was investigated. The addition of Te changed the composition and size of inclusions, impacting the corrosion behavior of the steel. Inclusions were found to have good electrical conductivity and were electrochemically dissolved. The presence of Te in the inclusions altered the localized corrosion mechanism, with the appropriate addition of Te improving the pitting potential and corrosion resistance of the steel.
Article
Materials Science, Multidisciplinary
Can Peng, Gongwang Cao, Tianzhen Gu, Chuan Wang, Zhenyao Wang, Cheng Sun
Summary: The fluctuation of dry/wet time is crucial to the corrosion process under a thin electrolyte film. This study investigated the influence of dry/wet time ratios on the atmospheric corrosion process of the 6061 Al alloy. Increasing the wetting time promoted intragranular corrosion, resulting in the highest corrosion rate at a constant relative humidity of 90%, which was 0.275 g.m(-2).d(-1). Quasi-in-situ observation revealed that intragranular corrosion was closely related to iron-enriched particles in the matrix. This study also provided theoretical guidance for accelerated simulation tests of Al alloys in the marine atmosphere.
Article
Metallurgy & Metallurgical Engineering
Lei Guan, Xiangyu Yang, Jianmin Cai, Yu Li, Guan Wang, Yongkang Zhang
Summary: The study found that the pitting potential of the exterior surface of 304L stainless steel significantly decreases after cold U-bending in an acidic NaCl solution, while the pitting potential of the interior surface does not decrease, owing to the influence of residual stresses.
STEEL RESEARCH INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Omid Pedram, Yousef Mollapour, Hassan Shayani-jam, Esmaeil Poursaeidi, Ramin Khamedi
Summary: This study investigated the corrosion behavior of tensioned and non-tensioned CUSTOM 450 specimens in a NaCl solution through electrochemical polarization tests, revealing that tensile stress facilitated deeper pit development. The rate of pitting corrosion decreased over time, as shown by mass loss measurements and current density-time curve in potentiostatic tests.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Yousef Mollapour, Esmaeil Poursaeidi
Summary: The study found that stress accelerates pitting corrosion growth in CUSTOM 450 stainless steel, leading to stress cracks forming in pits after a certain period of time. Comparisons between accelerated pitting time (simulation) at 350 mVSCE potential for stressed samples and samples with real operating conditions showed differences in the results.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
D. B. Wang, J. Wu, Q. Wang, L. Wan, W. Emori, S. D. Zhang, J. Q. Wang
Summary: The study found that as the temperature increased, the passive current for amorphous steel increased significantly without pitting corrosion, due to the decrease in Cr2O3 content and changes in the semiconductor characteristics of the passive film. At higher temperatures, the prominent pitting resistance was attributed to the inhibited pit initiation by the uniform passive film and the suppressed stable growth of metastable pits.
Article
Materials Science, Multidisciplinary
H. J. Simon, G. Cibin, C. Reinhard, Y. Liu, E. Schofield, I. C. Freestone
Article
Nanoscience & Nanotechnology
Liya Guo, Edmund Lovell, Qiwei Tang, David C. Boldrin, Chiu C. Tang, Sarah J. Day, Lesley F. Cohen, Mary P. Ryan
SCRIPTA MATERIALIA
(2020)
Article
Materials Science, Multidisciplinary
S. M. Tonge, C. A. Simpson, C. Reinhard, T. Connolley, A. H. Sherry, T. J. Marrow, M. Mostafavi
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2020)
Article
Engineering, Mechanical
Sam Oliver, Chris Simpson, David M. Collins, Christina Reinhard, Martyn Pavier, Mahmoud Mostafavi
Summary: Thermal shock is crucial in the operation of pressure vessels, affecting their structural integrity. Experiments and numerical simulations are used to evaluate the effects of thermal shock and study the transient material response. Research demonstrates that peak stress intensity occurs during thermal shock, rather than under steady conditions before or after.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Electrochemistry
Sarah J. M. Glanvill, Andrew du Plessis, Steven R. Street, Trevor Rayment, Alison J. Davenport
Summary: In-situ synchrotron X-ray tomography was used to observe the initiation and propagation of pits in an aluminium alloy during corrosion by seawater, revealing the spatial distribution of pit initiation and the non-uniformity of pit propagation.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Correction
Materials Science, Multidisciplinary
S. M. Tonge, C. A. Simpson, C. Reinhard, T. Connolley, A. H. Sherry, T. J. Marrow, M. Mostafavi
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2021)
Review
Energy & Fuels
Liya Guo, Daisy B. Thornton, Mohamed A. Koronfel, Ifan E. L. Stephens, Mary P. Ryan
Summary: This review summarizes the key effects contributing to metal current collector degradation in LIBs and introduces relevant corrosion and LIB principles. By developing the understanding of these complex chemistries, LIB degradation can be mitigated, enabling safer operation and longer lifetimes.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Dilveen Mohammed, Rayan Ameen, Steven Street, Kostas Sierros, James Bowen, Stephen Kukureka
Summary: Exposure to a corrosive NaCl solution can degrade the performance of ITO/Ag-alloy/ITO films over time, particularly at higher concentrations. The combination of stress and corrosion by the aqueous NaCl solution significantly reduces the conductivity of the film.
E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY
(2021)
Article
Mechanics
Abdullah Al Mamun, Dylan Agius, Chris A. Simpson, Christina Reinhard, Christopher Truman, Mahmoud Mostafavi, David Knowles
Summary: In this study, the evolution of meso-scale internal stresses during incremental plastic and creep deformation in type 316H stainless steel at 550 degrees C was investigated. It was found that the evolution of internal stresses during time independent plastic deformation is distinct from that during time dependent creep deformation. A unified constitutive law based on crystal plasticity framework was devised to correctly account for the effect of internal stresses on subsequent deformation.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Instruments & Instrumentation
Christina Reinhard, Michael Drakopoulos, Sharif Ahmed, Hans Deyhle, Andrew James, Christopher M. Charlesworth, Martin Burt, John Sutter, Steven Alexander, Peter Garland, Thomas Yates, Russell Marshall, Ben Kemp, Edmund Warrick, Armando Pueyos, Ben Bradnick, Maurizio Nagni, A. Douglas Winter, Jacob Filik, Mark Basham, Nicola Wadeson, Oliver N. F. King, Navid Aslani, Andrew J. Dent
Summary: DIAD is a new dual-beam instrument at Diamond Light Source, providing capabilities for full-field imaging/tomography and powder diffraction. With a unique design allowing fast switching between imaging and diffraction mode using two independent beams, it enables real-time selection of areas of interest for diffraction measurements.
JOURNAL OF SYNCHROTRON RADIATION
(2021)
Article
Materials Science, Multidisciplinary
Shunichi Tachibana, Biao Cai, Alison J. Davenport, Shinichi Miura, Hongchang Wang, Igor P. Dolbnya
Summary: This study investigated the microdefects in the rust layer of conventional steel and weathering steel and their effect on corrosion resistance. It was found that the rust layer of weathering steel had fewer and smaller defects compared to conventional steel. Furthermore, there was a strong correlation between the volume of defects and ion permeation as obtained by electrochemical impedance spectroscopy (EIS). Tomography results showed the formation of a protective layer on the weathering steel, indicating improved corrosion resistance.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Instruments & Instrumentation
Christina Reinhard, Michael Drakopoulos, Christopher M. Charlesworth, Andrew James, Hiten Patel, Paul Tutthill, Davide Crivelli, Hans Deyhle, Sharif Ahmed
Summary: The DIAD beamline at Diamond Light Source uses an industrial robot to position its CdTe diffraction detector, allowing flexible and stable positioning around the sample. Metrology measurements demonstrate excellent repeatability, enabling resolution of lattice d-spacings.
JOURNAL OF SYNCHROTRON RADIATION
(2022)
Article
Materials Science, Multidisciplinary
Tay Sparks, Duc Nguyen-Manh, Pengfei Zheng, Damian Sobieraj, Michael Gorley, Thomas Connolley, Christina Reinhard, Yiqiang Wang, Biao Cai, Jan S. Wrobel
Summary: This study investigated the mechanical properties of the vanadium base alloy V-4Cr-4Ti using in-situ high energy X-ray diffraction, and calculated its polycrystalline elastic properties and Zener anisotropy. The results are valuable for further assessing the suitability of V-4Cr-4Ti as a structural material.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Charilaos Paraskevoulakos, Joachim Paul Forna-Kreutzer, Keith R. Hallam, Christopher P. Jones, Thomas B. Scott, Clemence Gausse, Dong Liu, Christina Reinhard, Claire L. Corkhill, Mahmoud Mostafavi
Summary: This paper aimed to experimentally quantify the mechanical properties of a material fabricated to resemble MCCI, using Hertzian indentation stepwise loading and synchrotron X-ray computed tomography to reveal the microstructure and mechanical degradation of the sample.
NPJ MATERIALS DEGRADATION
(2022)
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.
