Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Nika Zakerin, Pooria Najafisayar, Mahmoud Pakshir
Summary: The research found that samples with less internal stress formed denser and less defective passive films on their surfaces, attributed to higher concentration of metal ions at the metal/solution interface during anodization process. Prolonged passivation times resulted in more impurities being incorporated into the growing passive film, deteriorating its electrochemical properties.
Article
Chemistry, Physical
Faeze Rahimi Kashani, Milad Rezaei
Summary: This study investigated the corrosion behavior of AISI 304 stainless steel in the presence of different concentrations of molybdic acid using various experimental and theoretical methods. The results demonstrated that molybdic acid can effectively reduce the corrosion rate and increase the donor density in the passive film. Computational studies further revealed the adsorption energy of molybdic acid on the steel surface and calculated the HOMO and LUMO energies using MD, MC, and DFT simulations.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Rafael dos Santos Pereira, Roosevelt Droppa, Mara Cristina Lopes de Oliveira, Renato Altobelli Antunes
Summary: The study examined the effect of milling with different feed rates and depths of cut on the surface residual stresses and chemical composition of AISI 304 stainless steel samples. It was found that milling imparted higher surface stresses, compressive stresses, and chromium enrichment, leading to increased stability of the passive film for the milled samples.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Pooria Najafisayar, Nika Zakerin, Mahmoud Pakshir
Summary: The study revealed that the sensitivity of AISI 410 stainless steel to intergranular corrosion (IGC) was affected by sensitization heat treatment, with longer tempering time leading to more severe localized attack but also a healing effect. Additionally, electrochemical noise and potentiodynamic electrochemical impedance spectroscopy are useful techniques for investigating the corrosion susceptibility of the alloy.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
V. L. Cruz-Hernandez, R. Garcia-Hernandez, V. H. Lopez-Morelos, M. A. Garcia-Renteria, J. Gonzalez-Sanchez
Summary: The application of external low-intensity electromagnetic fields (EMFLI) improves the resistance to intergranular corrosion (RIGC) in stainless steel welding by reducing sensitization and minimizing the formation of ferrite and Cr depletion.
Article
Materials Science, Multidisciplinary
Nika Zakerin, Khashayar Morshed-Behbahani
Summary: The study investigated the passivation of AISI 316L stainless steel in citric acid solutions with and without H2O2, and how it affected the electronic-semiconducting properties of the passive layers and corrosion resistance of the alloy. Higher passivating current densities were found to lead to lower concentration of charge carriers and improve corrosion performance. However, the addition of H2O2 was associated with deterioration of passive film properties.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Bojana M. Radojkovic, Bore V. Jegdic, Dunja D. Marunkic, Jovanka N. Pejic, Andela R. Simovic, Vladan R. Cosovic, Jelena B. Bajat
Summary: This study examined the correlation between the degree of sensitization (DOS) and intergranular corrosion (IGC) and the electrical conductivity level in welded and non-welded AISI 304 stainless steel. The results showed a linear relationship between electrical conductivity and DOS for DOS values above 0.5%, while lower DOS values had a higher deviation from linearity. The presence of Cr-depleted areas near grain boundaries and the reduction of carbon content in the austenite lattice were found to increase the electrical conductivity of the steel.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Li Sun, Si Chen, Jie Qiu, Tianyu Zhao
Summary: Intergranular corrosion (IGC) is a common form of corrosion in heat exchanger equipment in refineries. This study used various electrochemical measurements to investigate the evolution of IGC and its detection in 304 stainless steel pipes. The results showed that improper onsite operations can lead to rapid IGC development within 15 minutes at 700 degrees C due to chromium carbide precipitates at the grain boundaries. Compared to other methods, electrochemical impedance spectroscopy (EIS) proved to be a nondestructive and effective technique for characterizing the relationship between IGC and microstructure evolution.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Engineering, Mechanical
Menghao Liu, Zhuoyan Ni, Cuiwei Du, Zhiyong Liu, Meihui Sun, Endian Fan, Qiuyu Wang, Xiaojia Yang, Xiaogang Li
Summary: The investigation revealed that the failure of a heavily cracked geothermal water convection tube was caused by stress corrosion cracking induced by chloride in the service environment and sensitization of the matrix. Additionally, residual stress arising from the manufacturing process also promoted the failure process.
ENGINEERING FAILURE ANALYSIS
(2021)
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
Chemistry, Physical
Katarina Bartova, Maria Domankova, Jozef Barta, Peter Pastier
Summary: Intergranular corrosion is a significant process affecting the behavior of austenitic stainless steels. Factors such as steel composition, prior deformation, and temperature influence the degree of sensitization. Isothermal annealing affects the precipitation of secondary phases, and longer annealing times result in increased amounts of secondary phases. Thermo-Calc software is used to calculate the equilibrium state of secondary phases.
Article
Materials Science, Multidisciplinary
Xavier Arnoult, Mariana Arnoult-Ruzickova, Jan Manak, Alberto Viani, Jan Brajer, Michel Arrigoni, Radek Kolman, Jan Macak
Summary: Laser Shock Peening is a surface treatment technique that induces residual stresses and potentially improves fatigue, stress corrosion cracking, and corrosion behavior. This paper investigates the influence of Laser Shock Peening on the corrosion behavior of AISI 304L stainless steel in high-temperature, high-density water using in situ Electrochemical Impedance Spectroscopy. The study shows a change in residual stresses and a difference in oxide layer between treated and untreated specimens.
Article
Engineering, Multidisciplinary
Sabri Alkan, Mustafa Sabri Gok
Summary: The sliding tribocorrosion behaviors of AISI 316 stainless steel in natural seawater environment were influenced by both mechanical effects and electrochemical potential. After conducting tribocorrosion experiments at different potentials, it was found that the lowest coefficient of friction in the wear zone occurred at 0.3V potential.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Metallurgy & Metallurgical Engineering
Hadi Irani, Akbar Vajd, Ali Fardi Ilkhchy
Summary: In this study, the electrochemical behavior and semiconducting properties of the passive film formed on AISI 201 austenitic stainless steel were investigated using various electrochemical analysis techniques. The passivity of the steel was evaluated through potentiodynamic and potentiostatic polarization, as well as electrochemical impedance spectroscopy. The Mott-Schottky analysis based on the point defect model was applied to determine the semiconducting behavior of the film formed at different applied potentials. The results showed that the passive film exhibited a passivation property and n-type behavior, with metal interstitials and oxygen vacancies as the primary defects.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Materials Science, Multidisciplinary
N. Surya Prakash, Santanu Mandal, Sumantra Mandal, Debalay Chakrabarti, Mangal Roy
Summary: This study investigated the effect of nano-scale grain refinement on corrosion behavior in 301L metastable austenitic stainless steel. The results showed deformation-induced martensite transformation during cold rolling, and formation of austenite nano-grains during reversion annealing. It was found that the bimodal and unimodal nano-grained structures exhibited 7 times and 3 times decrease in corrosion rate, respectively. Additionally, the unimodal nano-grained structure formed a thicker and less defective passive film. Therefore, grain refinement to the nano range and absence of martensite can significantly improve the corrosion response of 301L stainless steel.
Article
Materials Science, Multidisciplinary
Khashayar Morshed Behbahani, Pooria Najafisayar, Mahmoud Pakshir
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2016)
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Pooria Najafisayar, Mahmoud Pakshir, Nika Zakerin
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Pooria Najafisayar, Ramtin Hessam, Nika Zakerin
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Nika Zakerin, Pooria Najafisayar, Mahmoud Pakshir
Summary: The research found that samples with less internal stress formed denser and less defective passive films on their surfaces, attributed to higher concentration of metal ions at the metal/solution interface during anodization process. Prolonged passivation times resulted in more impurities being incorporated into the growing passive film, deteriorating its electrochemical properties.
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Pooria Najafisayar, Nika Zakerin, Mahmoud Pakshir
Summary: The study revealed that the sensitivity of AISI 410 stainless steel to intergranular corrosion (IGC) was affected by sensitization heat treatment, with longer tempering time leading to more severe localized attack but also a healing effect. Additionally, electrochemical noise and potentiodynamic electrochemical impedance spectroscopy are useful techniques for investigating the corrosion susceptibility of the alloy.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Chemistry, Physical
Nika Zakerin, Khashayar Morshed-Behbahani
Summary: The study found that the Ti6Al4V alloy has better corrosion resistance in alkaline electrolytes, and increasing the electrolyte concentration leads to inferior corrosion properties, resulting in more intact passive layers.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Nika Zakerin, Khashayar Morshed-Behbahani
Summary: The study investigated the passivation of AISI 316L stainless steel in citric acid solutions with and without H2O2, and how it affected the electronic-semiconducting properties of the passive layers and corrosion resistance of the alloy. Higher passivating current densities were found to lead to lower concentration of charge carriers and improve corrosion performance. However, the addition of H2O2 was associated with deterioration of passive film properties.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Nika Zakerin, Khashayar Morshed-Behbahani
Summary: This article investigates the electrochemical behavior of passive films formed on the surface of age hardened Ti-6Al-4 V alloy in Ringer's physiological solution. The study found that prolonged ageing times lead to the formation of more defective passive films, resulting in decreased corrosion protection ability.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Electrochemistry
Mohammadali Shahsavari, Amin Imani, Rebecca Filardo Schaller, Edouard Asselin
Summary: This study compares the electrochemical characteristics and semiconducting behavior of additively manufactured Ti-6Al-4V samples using EBM and WR techniques. The results indicate that the EBM sample has a lower corrosion current density and thinner passive layer, but exhibits higher corrosion resistance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Mohammadali Shahsavari, Amin Imani, Andaman Setavoraphan, Rebecca Filardo Schaller, Edouard Asselin
Summary: This study investigates the effect of surface re-finishing on the corrosion behavior of electron beam manufactured (EBM) Ti-G5, with a focus on the novel application of electron beam surface remelting (EBSR) technique. The results show that surface roughness has a significant impact on corrosion resistance, rather than differences in microstructure. Both mechanical polishing and EBSR methods can reduce surface roughness and improve corrosion resistance, but mechanical polishing has limitations. The EBSR process in this study demonstrates promising preliminary results.
SCIENTIFIC REPORTS
(2022)
Review
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Nika Zakerin
Summary: This paper reviews the corrosion behavior of surface nanocrystallized stainless steels, examines the impact of surface nanocrystallization techniques on stainless steels, and discusses the related corrosion mechanisms.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Chemistry, Multidisciplinary
Khashayar Morshed-Behbahani, Donald Paul Bishop, Ali Nasiri
Summary: This paper critically reviews the corrosion properties, passivity, and microstructural characteristics of conventionally produced and AMed NAB alloys, and discusses the fundamental mechanisms governing their corrosion behavior. It also highlights the current research gap and challenges associated with the corrosion behavior of traditional and AMed NABs.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Morshed Khashayar Behbahani, Pooria Najafisayar, Mahmoud Pakshir
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2018)
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.
