Article
Materials Science, Multidisciplinary
Wenjun Kuang, Xingyu Feng, Donghai Du, Miao Song, Mi Wang, Gary S. Was
Summary: Analysis of irradiation-assisted stress corrosion cracks (IASCCs) in proton-irradiated 316 L stainless steel after constant load test in simulated PWR primary water showed consistent damage with neutron irradiations at similar dose. The microstructural and microchemical features of IASCC cracks were similar to neutron-irradiated samples, indicating the effectiveness of protons in emulating neutron for IASCC study. The preferential oxidation of Si at grain boundaries beyond the crack tip and its dissolution into solution leading to enhanced porosity within the intergranular oxide were identified as important factors behind IASCC in reducing environment.
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
Engineering, Mechanical
Adnane ElJersifi, Meriem Ben Ali, Khadija El Maalam, Abdelouahed Chbihi, Khalil Aouadi, Khalid Ouzaouit, Sanae Naamane
Summary: In this study, the failure of a stainless steel component used in a hydrometallurgy plant's leaching reactor agitator was examined. The sample underwent various tests, including characterization of alloy composition, analysis of the work environment, and microscopic observation of the sample's surface and cross-section. It was found that the alloy had higher carbon content and lower nickel content than specified, which negatively affected its corrosion resistance. The working environment analysis revealed high concentrations of chlorides and sulfates, rendering even the specified alloy insufficiently corrosion resistant, particularly at a temperature of 90 degrees C. Microscopic examination identified intergranular corrosion and stress corrosion cracking as the primary failure mechanisms, with the presence of multiple CaSO4 inclusions accelerating the latter and allowing corrosive agents to penetrate the material.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Ju-Chan Jin, Soochul Cho, Kihyuk Kim, Hoseop Sim, Byung Gyu Park, Young-Kook Lee
Summary: This study compared the microstructures and intergranular corrosion resistances of two stainless steel clad plates (STS 316L/A516-70N and STS 304L/A516-70N) fabricated without Ni interlayers using the same hot rolling and normalizing conditions. It was found that the thickness of the grain-boundary carburized layer was thinner in STS 316L due to Mo atoms segregated at the grain boundaries. Both stainless steels had carbides on their free surfaces, and STS 304L also had some amount of d ferrite. However, the corrosion resistance of the free surfaces of both stainless steels was not compromised.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Ping Deng, En-Hou Han, Qunjia Peng, Chen Sun
Summary: The corrosion behavior and mechanism of irradiated 304 nuclear grade stainless steel in simulated pressurized water reactor primary water were investigated. It was found that the corrosion rates of the steel increased with irradiation dose, accompanied by the evolution of oxide formation. The correlation between oxide evolution, corrosion kinetics, and mechanism was discussed.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
D. Liang, J. Hure, A. Courcelle, S. El Shawish, B. Tanguy
Summary: This study investigates the micromechanical analysis of irradiated austenitic stainless steel to assess local cracking conditions and crack initiation criteria. Statistical analysis and micromechanical simulations show that cracking tends to occur for grain boundary normals aligned with the mechanical loading axis. The strengths and weaknesses of this micromechanical approach are discussed based on the correlation between experimental and simulated results.
Article
Materials Science, Multidisciplinary
Tomoyuki Fujii, Masanori Suzuki, Yoshinobu Shimamura
Summary: This study evaluated the crystallographic characteristics of grain boundaries to assess the susceptibility to intergranular corrosion. It was found that the energy of grain boundaries was the only variable able to characterize the susceptibility.
Article
Engineering, Mechanical
Jie Chen, Yi Gong, Tong-Hao Jiang, An-Xia Pan, Sheng-Hui Wang, Zhen-Guo Yang
Summary: The study found that inappropriate surface processing led to processing stripes and incomplete passivation film on the inner surface of the pipe, which in turn caused pitting corrosion and intergranular corrosion. Additionally, the additional assembly stress between the pipe and fitting facilitated the initiation of stress corrosion cracking.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
D. A. Macatangay, G. W. Kubacki, R. G. Kelly
Summary: Localized corrosion susceptibility represents a risk to the long-term performance of additively manufactured alloys. The unique microstructures resulting from additive manufacturing can have a significant impact on corrosion susceptibility and morphology. The response to standardized testing can also vary for additively manufactured alloys compared to traditional alloys. Parameters during the manufacturing process can greatly affect the susceptibility through the lifetime of the liquid phase.
Article
Chemistry, Physical
Milan Radovanovic, Marija Petrovic Mihajlovic, Zaklina Tasic, Ana Simonovic, Milan Antonijevic
Summary: Stainless steel 316L, a biomaterial used for medical implants, must be highly resistant to corrosion in the aggressive human body environment. Amino acids like L-Lysine and L-Threonine have been found to act as corrosion inhibitors in artificial body solutions by adsorbing onto steel surfaces. The study also shows that the addition of sodium dodecyl sulphate (SDS) can enhance the adsorption of amino acids on the steel surface, increasing their protection ability against corrosion.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Young-Ran Yoo, Seung-Heon Choi, Young-Sik Kim
Summary: Dry canisters used in nuclear power plants may experience localized corrosion, such as stress corrosion cracking, due to residual and external tensile stress. Various methods, including laser peening, can mitigate residual stress and enhance the corrosion properties of the material. This study investigated the effect of laser peening with/without a thin aluminum layer on the corrosion behavior of welded 304L stainless steel.
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
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
Binggang Shang, Xinzhe Yuan, Rulei Lan, Yiming Jiang, Jin Li, Yangting Sun
Summary: This research investigates the complex effects of hydrogen charging on crystal defects and passive film properties in high-defect-density 443 ultrapure ferritic stainless steel. It reveals that increasing the hydrogen charging current density results in higher hydrogen capture when non-saturated hydrogen is present at hydrogen traps. These captured hydrogen atoms fill the defects, thereby reducing the stress level and promoting the growth of chromium oxides within the passive film. As a result, the alloy's resistance to intergranular corrosion is improved.
Article
Materials Science, Multidisciplinary
Pei He, Xiangyu Wang, Kangkang Zheng, Yiming Jiang, Jin Li, Yangting Sun
Summary: This research investigates the distribution of hydrogen and hydrogen-facilitated intergranular corrosion (IGC) in an austenitic stainless steel. The study finds that while coherent twin boundaries sigma 3 normally exhibit excellent corrosion resistance, they become prone to IGC after hydrogen charging. The results also show that the inhomogeneous distribution of absorbed hydrogen leads to IGC at grain boundaries, regardless of whether the steel is solution-treated or sensitized. The study proposes a model to explain this distinct type of IGC induced by hydrogen.
Article
Dentistry, Oral Surgery & Medicine
Lingxiao Wang, Chao Liang, Xiao Lin, Changying Liu, Jun Li
Summary: This study elucidated the role of miR-491-5p in osteogenic differentiation, particularly in patients with type 2 diabetes. The downregulation of miR-491-5p was found to be a major factor contributing to decreased osteogenic differentiation. Regulation of miR-491-5p expression has the potential to improve osteogenic differentiation in patients with type 2 diabetes.
Article
Materials Science, Multidisciplinary
Yaqing Wei, Jun He, Jie Zhang, Mingyang Ou, Yanpeng Guo, Jiajun Chen, Cheng Zeng, Jia Xu, Jiantao Han, Tianyou Zhai, Huiqiao Li
Summary: This study proposes a seamless integration strategy by merging the voltage and capacity of phosphorus and antimony into a solid solution alloy. Experimental results show that this alloy exhibits superior cycle stability, rate performance, and even delivers high capacity at low temperature.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Review
Plant Sciences
Wei Li, Jinyu He, Xiuzhuo Wang, Matthew Ashline, Zirui Wu, Fengquan Liu, Zheng Qing Fu, Ming Chang
Summary: PBS3 is an acyl acid amido synthetase that plays a critical role in the biosynthesis of salicylic acid in Arabidopsis. It acts as a positive regulator of plant immunity and is involved in stress responses and plant development.
Article
Chemistry, Multidisciplinary
Hao Yan, Qian Wang, Jingyun Wang, Wenting Shang, Zhiyuan Xiong, Lingyun Zhao, Xiaodan Sun, Jie Tian, Feiyu Kang, Seok-Hyun Yun
Summary: By using a bottom-up molecular approach, graphene quantum dots (GQDs) can be planted in the poly(ethylene glycol) (PEG) layer of PEGylated nanoparticles to form NPs-GQDs-PEG nanocomposite, allowing for sustainable and multimodality tumor bioimaging in vivo. The planted GQDs show prolonged blood circulation and increased tumor accumulation compared to typical GQDs, and also enable long-term real-time visualization of the local pharmacokinetics of nanoparticles in vivo.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Kaihang Sun, Chenyang Shen, Rui Zou, Chang -jun Liu
Summary: This study demonstrates high activity and enhanced CO tolerance for CO2 hydrogenation to methanol on Pt/In2O3-ZrO2 catalyst. The addition of ZrO2 enables stronger electron transfer between Pt and In2O3-ZrO2, leading to weaker CO adsorption and improved CO tolerance of Pt catalyst. The ZrO2-modified oxygen vacancy promotes CO2 activation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Biodiversity Conservation
Peng Chen, Biao Wang, Yanlan Wu, Qijun Wang, Zuoji Huang, Chunlin Wang
Summary: This study proposed a multi-source remote sensing water quality inversion method based on a small number of samples, which solved the problem of scale inconsistency among multi-source remote sensing data and achieved large-scale and efficient inversion of urban river water quality.
ECOLOGICAL INDICATORS
(2023)
Article
Engineering, Electrical & Electronic
Xu Gao, Ke Yang, Yi-xuan Zhu, Jun-qi Liu, Shen-qiang Zhai, Shu-man Liu, Ning Zhuo, Jin-chuan Zhang, Li-jun Wang, Feng-qi Liu, Xiao-hua Wang, Zhi-peng Wei
Summary: The authors demonstrate a high-speed 8.5-μm quantum cascade laser (QCL) that operates continuously at room temperature. A maximum output power of 141 mW is achieved at 20 degrees C. By monolithically integrating a pi-shaped metal contact electrode, the parasitic capacitance of the device is reduced from 36.6 to 7.1 pF, resulting in an increased -3 dB RF modulation bandwidth from 870 MHz to 4.5 GHz compared to the conventional electrode configuration.
ELECTRONICS LETTERS
(2023)
Article
Agriculture, Multidisciplinary
Guoqing Wu, Jingxuan Xu, Qiyao Wang, Ziyang Fang, Yucheng Fang, Yujie Jiang, Xiaohong Zhang, Xiangrong Cheng, Jin Sun, Guowei Le
Summary: Dietary methionine restriction (MR) has various health-promoting effects, including the prevention of chronic diseases and cancer, as well as extension of lifespan. Recent studies have provided new insights into the mechanisms and phenotypes of MR, particularly in areas such as angiogenesis, neurodegenerative diseases, intestinal microbiota, and intestinal barrier function. This review comprehensively summarizes the novel roles and interpretations of the mechanisms underlying MR in the prevention of chronic diseases and aging.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Physical
Guanghui Yang, Jiyeon Kang, Amanda Carsbring, Wangzhong Mu, Peter Hedstrom, Jin-Kyung Kim, Joo Hyun Park
Summary: The precipitation of Cr-rich BCC particles was found to be dependent on the chemical composition of Fe-Cr-Ni medium entropy alloys. These particles played a significant role in the hardening of the alloys. The different precipitation behaviors at two temperatures resulted in variations in grain size distribution and hardness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Microbiology
Yibei Zhang, Yuping Huang, Haoyuan Ding, Jiabao Ma, Xinyu Tong, Yuanxing Zhang, Zhen Tao, Qiyao Wang
Summary: This study revealed the important role of RpoE in controlling the infection process of P. plecoglossicida. Through temperature sensing, RpoE regulates gene expression related to bacterial signal transduction, membrane homeostasis, energy metabolism, and virulence.
MICROBIOLOGICAL RESEARCH
(2023)
Article
Mycology
Qiqi Wang, Wei Chen, Zhe Wan, Wei Liu
Summary: An outbreak of tinea capitis caused by Trichophyton tonsurans was reported among five juvenile athletes in a wrestling team in Beijing, China. The fungal pathogens were identified as T. tonsurans by morphology and sequencing. Multilocus genotyping analysis revealed a single genotype among the five isolates. Antifungal susceptibility testing showed that these isolates were susceptible to common antifungal drugs for treating tinea capitis.
Article
Virology
Zhenhe Xu, Zihan Ding, Yuanxing Zhang, Xiaohong Liu, Qiyao Wang, Shuai Shao, Qin Liu
Summary: Phage therapy is a potential alternative to antibiotics for bacterial infections. This study found that storing phages at 4 degrees C was optimal and that 10% dimethyl sulfoxide (DMSO) was more effective in protecting the phages at lower temperatures than glycerin. Additionally, the use of hydroxyapatite and a combination of trehalose with tryptic soy broth or skim milk powder alleviated phage inactivation during storage. Furthermore, a model for predicting phage shelf-life was established with high accuracy using the Accelerated Stability Assessment Program (ASAP) based on the Arrhenius equation.
Article
Environmental Studies
Meng-tao Chen, Da-peng Yang, Wei-qi Zhang, Qi-jun Wang
Summary: This research investigates the impact of ESG performance on stock liquidity in Chinese stock market. The study finds that strong ESG disclosure enhances stock liquidity and functions as a positive signal to build firm reputation. However, the effect of ESG disclosure on stock liquidity is not significant for most service sector firms, while non-SOEs and firms in Midwest benefit more.
ENVIRONMENTAL IMPACT ASSESSMENT REVIEW
(2023)
Article
Linguistics
Olga Tararova, Martha Black, Qiyao Wang, Katrina Blong
Summary: This study investigates the acquisition of Spanish gender agreement by Russian or Mandarin speakers of English, and compares the results with English speakers of Spanish. The results suggest that beginner learners are influenced by the grammatical gender system of their L1s when identifying gender in Spanish.
Article
Engineering, Chemical
Yanli Wang, Hong Yang, Guangjin Hou, Bosong Zhang, Zhaochi Feng, Xinwen Guo, Can Li
Summary: In this study, post-treated Al-TS-1 catalysts were prepared through hydrothermal post-treatments, which showed higher H2O2 conversion in the HPEG process compared to the parent Al-TS-1. The post-treatment also affected the location and amount of framework Al species in the catalyst, but had minor impact on the EG selectivity.
CHEMICAL ENGINEERING SCIENCE
(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.
