Article
Materials Science, Multidisciplinary
Xuying Wang, Jonas Hedberg, Heng-Yong Nie, Mark C. Biesinger, Inger Odnevall, Yolanda S. Hedberg
Summary: This study aimed to locate cobalt in stainless steel and investigate its release behavior in different body fluids. The results showed that cobalt was uniformly distributed with metallic nickel beneath the surface oxide and co-released with other metals during surface reformation and passivation. Exposure to phosphate buffered saline resulted in the incorporation of both cobalt and phosphate in the oxide.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Hongxu Cheng, Hong Luo, Xuefei Wang, Zhimin Pan, Yi Jiang, Xiaogang Li
Summary: The electrochemical corrosion and passive behavior of QN2109 stainless steel in different NaCl solutions were investigated. It was found that in chloride environment, the stainless steel exhibited excellent pitting corrosion resistance and self-repair effect.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Takahito Aoyama, Hiroaki Ogawa, Chiaki Kato, Fumiyoshi Ueno
Summary: The study found that Cu2+ in solution can affect the pitting corrosion resistance of stainless steel, leading to pitting in solutions containing CuCl2, but not in those without it. Additionally, Cu2+ deposits on the surface in the solution, affecting the formation of passive films.
Article
Chemistry, Physical
Adrien Barroux, Thomas Duguet, Nadege Ducommun, Eric Nivet, Julien Delgado, Lydia Laffont, Christine Blanc
Summary: The study found that the passive film formed on 17-4PH martensitic stainless steel manufactured by powder bed laser beam melting was structurally similar to that of conventionally manufactured 17-4PH, but significant differences were observed in thickness and chromium distribution.
SURFACES AND INTERFACES
(2021)
Article
Multidisciplinary Sciences
Yanxin Qiao, Xinyi Wang, Jian Chen, Lanlan Yang, Xiaojing Wang, Huiling Zhou, Jiasheng Zou
Summary: The electrochemical corrosion behavior of an aged Fe-18Cr-15Mn-0.66 N high-nitrogen austenitic stainless steel in 3.5 wt.% NaCl solution was studied, showing that the passive films formed were mainly composed of Cr oxide/hydroxide and iron oxides. XPS depth profile analysis indicated an increase in Cr and Fe contents near the passive film/HNSS interface, while the contents of Cr and Fe oxide/hydroxide decreased.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(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
Shivangi Gupta, Kapil Kumar Gupta, Martin Andersson, Rouhollah Yazdi, Rajan Ambat
Summary: This study investigated the corrosion inhibition of L80-1Cr steel by alkanolamine molecules in a CO2-saturated NaCl solution. The results showed that at 20 degrees C, the corrosion rate was more influenced by alkanolamine injection. Experimental and molecular modelling calculations demonstrated that alkanolamine adsorption/desorption played a crucial role in the kinetics and characteristics of FeCO3 formation. Additionally, the efficiency of the inhibitors depended on their chemical structures and adsorption energy on Fe(110), FeCO3(104), and Fe3C(001), with ethanolamine providing the highest efficiency.
Article
Engineering, Environmental
Yuhua Dong, Kexin Wu, Yuanyuan Yin, Xueyan Du, Qiong Zhou
Summary: By calcinating Ti3C2 MXene at different temperatures, a ternary composite with enhanced photocatalytic activity and improved photocathodic protection effect was prepared. The addition of TiN further shifted the absorption peak towards the red end of the visible light spectrum, showing promising potential for protection against natural corrosion of 304 SS.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Construction & Building Technology
U. Martin, J. Bosch, J. Ress, D. M. Bastidas
Summary: The study investigated the corrosion behavior, semiconducting properties, and chemical composition of the passive film formed on lean-duplex stainless steel LDSS 2001 at different chloride concentrations. The enrichment of chromium in the passive film of LDSS 2001 increased after 2.5 years, along with an increase in flat-band potential with higher Cl concentrations.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hao Feng, Hua-Bing Li, Jin-Dong Qu, Jing Dai, Hong-Chun Zhu, Shu-Cai Zhang, Zhou-Hua Jiang, Tong He, Tao Zhang
Summary: This study elucidated the significant influence of matrix elements (Fe and Ni) on the passivation behavior and corrosion resistance of alloys with the same Cr content through experimental and modeling studies. The results showed that each species of passive film deposited earlier on the Febese alloy compared to the Nibase alloy. Additionally, the nucleation and growth rates of Cr-oxide/hydroxide were similar on both alloys, but the rates of Fe-oxides were much higher on the Febese alloy. These findings correlated well with the higher thickening rate and thickness, but lower proportion of Cr2O3 in the passive film on the Febase alloy, which resulted in its higher metastable pitting sensitivity and lower corrosion resistance.
Article
Chemistry, Physical
Peijie Feng, Minhyeok Lee, Daoyuan Wang, Yuji Suzuki
Summary: The surface reactions of ammonia play a significant role in the reaction kinetics and thermal decomposition. The study found that thermal decomposition can occur on inert surfaces such as quartz, and the decomposition rate is even higher on stainless steel. The formation of iron nitride on stainless steel facilitates the thermal decomposition of ammonia.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
S. Choudhary, V. Cruz, A. Pandey, S. Thomas, N. Birbilis
Summary: The study found that additively manufactured stainless steel 316L prepared via selective laser melting exhibited a lower dissolution rate in sodium chloride solution compared to wrought stainless steel 316L, mainly due to its unique passive film. The research also elaborated on the dissolution and enrichment behavior of alloying elements at different potentials.
Article
Electrochemistry
Jizheng Yao, Zhenhui Qi, Chaofang Dong
Summary: The growth process, composition, and electrochemical behavior of passive films on ferrite and austenite phases in 2205 duplex stainless steel were investigated. The alpha/gamma individual phases on the unbroken surface exhibited similar electrochemical characteristics, and element gradients were observed at phase boundaries. Three stages of passive film formation were defined, and an even distribution of alloying elements was observed in the two-layer passive film on the intact surface.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Civil
Orhan Yapici, Marios Theofanous, Sheida Afshan, Huanxin Yuan, Samir Dirar
Summary: A recent series of experimental tests and numerical studies on stainless steel connections revealed the conservatism of current design rules in EN 1993-1-8. This study develops an advanced FE model to predict the behavior and failure mechanisms of bolted T-stubs in tension, and assesses the design provisions of EN 1993-1-8 through parametric studies.
THIN-WALLED STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Xiaoqi Yue, Alfred Larsson, Huajie Tang, Andrea Grespi, Mattia Scardamaglia, Andrey Shavorskiy, Anantha Krishnan, Edvin Lundgren, Jinshan Pan
Summary: The passivation behavior of a N-and V-containing martensite stainless steel was investigated using synchrotron-based near ambient-pressure X-ray photoelectron spectroscopy, electrochemical analyses, and thermodynamic calculation. The passive film consists of inner layer with Cr3+, Fe(2, 3)+, and V(2, 3, 4)+ oxides, and outer layer with Cr3+ and Fe3+ hydroxides. Austenitization at 1080 oC facilitates the transformation of CrN to Cr2O3 and enrichment of Cr3+ oxide in the passive film. Higher Cl- concentration leads to film dissolution, increasing the level of point defects and fraction of remaining V oxides in the passive film.
Article
Materials Science, Multidisciplinary
Bao-Guang Zhang, Xiao-Ming Zhang, Hua-Bing Li, Hai-Tao Liu
Summary: The deliberate addition of nitrogen in the Fe-0.2C-5Mn TRIP steel not only increases the austenite fraction and improves the austenite stability, but also leads to the simultaneous precipitation of cementite and carbonitride in ferrite and at grain boundaries. This results in increased yield strength and strong serrated flow behavior, contributing to the excellent strength-ductility balance of the steel.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Hao Feng, Hua-Bing Li, Ling-Feng Xia, Hong-Chun Zhu, Shu-Cai Zhang, Zhou-Hua Jiang
Summary: By comparing the advantages and disadvantages of existing metallurgical manufacturing technologies for high nitrogen stainless steel, a promising pressurized duplex manufacturing route is proposed. This route involves pressurized induction melting and pressurized electroslag remelting to achieve nitrogen alloying, deoxidation, and desulfurization, resulting in materials with high nitrogen content, high cleanliness, and fine and dispersed inclusions.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Meng Sun, Zhouhua Jiang, Yang Li, Huabing Li, Changyong Chen, Shuai Ma, Yongshuai Ji, Ju Wang, Yanshuo Ma
Summary: This study investigates the impact of the timing of ferrosilicon addition with Al and Ca impurities on the evolution of inclusions in the refining process of Al-killed gear steel. The results show that the content of Ca increases when the ferrosilicon with Al and Ca impurities is added late. Additionally, changing the timing of ferrosilicon addition can transform inclusions into liquid calcium aluminate inclusions.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Huabing Li, Yu Han, Hao Feng, Gang Zhou, Zhouhua Jiang, Minghui Cai, Yizhuang Li, Mingxin Huang
Summary: This study demonstrates that nitrogen doping can suppress the formation of deformation twins in a CrMnFeCoNi high entropy alloy and significantly enhance its strength at 77 K without sacrificing much ductility. Microstructural characterization and first-principles calculations uncover the role of interstitial nitrogen atoms in achieving this excellent combination of strength and ductility. The addition of nitrogen increases the generalized stacking fault energy and reduces twinning, while the pinning of dislocations by nitrogen atoms effectively inhibits dislocation cross-slip and dynamic recovery, thereby promoting the accumulation of dislocations. The high dislocation density contributes to high strain hardening capacity and improved uniform elongation, compensating for the ductility loss caused by solid solution strengthening. The effect of nitrogen doping enriches the design concept of high- and medium-entropy alloys and provides an economical and effective strategy for developing ultra-high-performance alloys suitable for cryogenic applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Hao Feng, Yu Han, Hua-Bing Li, Yan-Zhong Tian, Hong -Chun Zhu, Zhou-Hua Jiang, Tong He, Gang Zhou
Summary: This study investigated the effect of nitrogen on the microstructural evolution and Charpy impact energy of CoCrFeMnNi high-entropy alloy (HEA) and revealed the corresponding fracture mechanism. The results showed that nitrogen atoms can fully dissolve into the matrix and significantly increase the alloy's Charpy impact energy. Microstructural characterization revealed that the increased dislocation density and more evenly distributed slip system contributed to the enhancement in impact toughness of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Metallurgy & Metallurgical Engineering
Cong-lin Yao, Hong-chun Zhu, Zhou-hua Jiang, Hua-bing Li, Hong-bin Lu, Shu-cai Zhang, Hao Feng
Summary: In this study, a numerical simulation is conducted to investigate the characteristics of scrap melting in molten steel, with simultaneous heat and mass transfers. The results show that the scrap melting stages consist of frozen shell formation, frozen shell remelting, and parent scrap melting. The heat transfer coefficient and the carbon mass transfer coefficient between the scrap and the molten steel are found to be in specific ranges. The effects of process parameters on scrap melting time are also studied, and a quantitative relationship between these parameters and the scrap melting time is established to predict the formation of the frozen shell.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Xu-Ze Li, Hua-Bing Li, Hao Feng, Shou-Xing Yang, Shu-Cai Zhang, Hong-Chun Zhu, Zhou-Hua Jiang
Summary: This study investigates the solubility of nitrogen in the Ni-Cr-Mo alloy system through experiments and thermodynamic analysis. The results can be used to accurately predict the nitrogen solubility, which has guiding significance for controlling the nitrogen content.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhi-Yu He, Hua-Bing Li, Hong-Chun Zhu, Yu Wang, Zhuo-Wen Ni, Zhou-Hua Jiang, Hao Feng, Shu-Cai Zhang
Summary: The influence mechanisms of nitrogen pore formation on the evolution of precipitated phase and dendritic structure during solidification process in 30Cr15Mo1N ingot have been investigated. The presence of nitrogen pores affects the growth direction and secondary dendrite arm spacing of dendritic structures.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Chuntian Yang, Hao Feng, Xiaobo Chen, Yu Han, Huabing Li, Dake Xu, Fuhui Wang
Summary: Corrosion-resistant high nitrogen high entropy alloys (HEAs) exhibit an inhibitory effect on pitting corrosion caused by sulfate reducing bacterium Desulfovibrio vulgaris. Addition of nitrogen decreases pitting sensitivity and strengthens the passive film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
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.
