Article
Materials Science, Multidisciplinary
Li Lei, Zhongyu Cui, Hui Pan, Kun Pang, Xin Wang, Hongzhi Cui
Summary: The microstructure, corrosion behavior, and cytocompatibility of as-cast and extruded Mg-Zn-Mn-(0, 1.5)Sr alloys in Hank's solution were investigated. Extrusion resulted in grain refinement and preferred texture, while distinct features of Sr-free and Sr-containing alloys included an increase in dislocation density and fragmentation of Mg17Sr2, respectively. Extrusion significantly accelerated the corrosion rate of Sr-free alloy, while alloyed Sr eliminated this deterioration process. Sr alloying decreased the corrosion rate and enhanced the cytocompatibility of the extruded Mg-Zn-Mn alloy without affecting the corrosion penetration depth, demonstrating the superiority of Sr alloying for extruded magnesium alloys as implant materials.
Article
Materials Science, Multidisciplinary
Mei-Xuan Li, Cheng Wang, Yi-Jia Li, Da-Wei Wang, Min Zha, Yipeng Gao, Hui-Yuan Wang
Summary: The effect of trace Ce addition on the microstructure evolution and corrosion behavior of dilute Mg-0.6Al-0.5Mn-0.25Ca alloys has been investigated. The addition of Ce resulted in the formation of less noble Al8Mn4Ce and Al11Ce3 phases. Notably, the alloy containing 0.3 wt% Ce exhibited the lowest corrosion rate, attributed to factors such as the low potential difference, compact composite oxide film, and enrichment of Fe.
Article
Chemistry, Physical
Guonan Liu, Jilei Xu, Baojing Feng, Jinhui Liu, Dongqing Qi, Wenzhan Huang, Peixu Yang, Shaojun Zhang
Summary: Adjusting the microstructure through deformation process affects the corrosion behavior of Mg alloys. This study investigated the corrosion performance of extruded and forged WE43 alloys in NaCl solution, and found that the different microstructures resulted in different corrosion behaviors and corrosion resistance.
Article
Materials Science, Multidisciplinary
Yi-Jia Li, Mei-Xuan Li, Zhen-Ming Hua, Bing-Yu Wang, Yipeng Gao, Hui-Yuan Wang
Summary: The effect of Al on microstructure and corrosion behavior of cast Mg-2Zn-xAl-0.5Ca (x = 0, 0.5, 1.0, 2.0 wt%) alloys is investigated. The addition of 0.5 wt% Al leads to the lowest corrosion rate of 4 mm/y. This is attributed to the decreased cathodic activity of Ca2Mg6Zn3 phase due to Al doping and the refined intermetallics resulting from Al alloying, which reduce pitting corrosion. Additionally, the finer grains enhance the barrier effect at grain boundaries, effectively confining corrosion propagation. The formation of Al2O3 reinforces the surface film. The optimum Al content is determined to be 0.5-1.0%, which provides the alloy with admirable corrosion resistance and high ultimate tensile strength.
Article
Electrochemistry
Sankalpita Chakrabarty, J. Alberto Blazquez, Tali Sharabani, Ananya Maddegalla, Olatz Leonet, Idoia Urdampilleta, Daniel Sharon, Malachi Noked, Ayan Mukherjee
Summary: Rechargeable magnesium batteries are attractive due to their high volumetric capacity, low cost, and safety features. Progress in their development includes the introduction of nonaqueous electrolytes enabling reversible electrodeposition of magnesium metal. The study shows the efficacy of carbon coating on the current collector, with Ni@C collector exhibiting higher corrosion pit initiation potential compared to uncoated metallic foils. Improving the anodic stability of current collectors is critical in developing practical rechargeable Mg batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Metallurgy & Metallurgical Engineering
Lei Fan, Juantao Zhang, Hao Wang, Yang Liu, Yu Cui, Cheng Wang, Rui Liu, Dongxiao Xu
Summary: The study revealed that Cl- ions can cause pitting corrosion in aluminum alloy 6063, and the combination of Cl- with Cu2+ or Fe3+ ions can exacerbate this corrosion. Fe3+ accelerates uniform corrosion, while Cu2+ mainly promotes pitting corrosion.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Wei Zhang, Bruce Brown, David Young, Gheorghe Bota, Srdjan Nesic, Marc Singer
Summary: The parametric study identified specific conditions that lead to corrosion of mild steel in marginally sour environments, including temperature, H2S pH, solution pH, and sodium chloride concentration. Transmission electron microscopy revealed a porous layer containing mackinawite and magnetite, with corrosion initiating when the mackinawite layer broke down and exposing the steel surface to corrosive substances, leading to propagation of corrosion due to galvanic coupling.
Article
Chemistry, Physical
Pengfei Ji, Shuguang Liu, Chunbao Shi, Kuixue Xu, Zhenguo Wang, Bohan Chen, Bo Li, YuJing Yang, Riping Liu
Summary: The synergistic effect of Zr addition and grain refinement on the corrosion resistance and pitting corrosion behavior of Ti-Zr-based alloys was evaluated. It was found that Zr addition increases pitting sensitivity while grain refinement improves the stability of the passivation film. In alloys with low Zr content, grain refinement inhibits corrosion pits inside the grains, while in alloys with high Zr content, grain refinement induces small corrosion pits.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
X. W. Wang, W. Wang, W. Chen, D. M. Chen
Summary: The study investigated the effects of Al content and annealing condition on the microstructures and corrosion performances of Mg-3 wt.%Cu-x Al alloys. Al-bearing alloys exhibit MgAlCu and Mg17Al12 phases with higher Volta potential, and the volume fractions of Cu-bearing phases are influenced by Al content and annealing condition. The corrosion performances of alloys can be controlled by adjusting Al content and annealing conditions, as indicated by the relationship between weight loss rate and Cu-bearing phase volume fractions.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yingrui Liu, Hong Du, Xiao Zuo, Peng Guo, Li Liu, Kwang-Ryeol Lee, Aiying Wang, Peiling Ke
Summary: The study evaluated the corrosion behavior of the multilayered Cr/GLC coating in artificial seawater under different pressure conditions, showing that the corrosion resistance was better at 1 atm but deteriorated significantly at 300 atm. The results suggest the importance of fabricating dense coatings for deep-sea applications.
Article
Materials Science, Multidisciplinary
Sang-Jin Ko, Yun-Ho Lee, Ki-Seok Nam, Eun-Ha Park, Jung-Gu Kim
Summary: The effects of different surface conditions, namely carbonaceous residue, copper chloride, and deposit, were quantitatively evaluated for their impact on localized corrosion. Electrochemical analysis and corrosion simulation showed that all three surface conditions induced localized corrosion on copper, with the pitting factor increasing in the order of deposits, copper chloride, and carbonaceous residue. Corrosion simulation further revealed that the galvanic corrosion current density increased as the surface coverage and density of chloride residue decreased.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Leticia Cabrera-Correa, Leandro Gonzalez-Rovira, Juan de Dios Lopez-Castro, F. Javier Botana
Summary: Research on localized corrosion of Scalmalloy processed by SLM under certified conditions reveals correlation with intermetallic particles in the microstructure, showing two groups of pits with different repassivation behavior in all samples. Heat treatment does not affect pitting corrosion performance, but slightly increases intergranular corrosion susceptibility.
Article
Engineering, Mechanical
C. V. L. Sabara, L. N. S. Prachedes, L. C. Santos, M. A. Sabara, R. C. Souza, A. F. Sene, L. Caldeira, G. L. Vaz, J. R. Oliveira, J. A. C. P. Gomes, A. H. S. Bueno
Summary: This study investigates the parameters influencing the pitting resistance of martensitic stainless steels, specifically focusing on the chemical composition, microstructure, service temperature, chloride concentration, aeration conditions, and pH. Electrochemical techniques were used to assess the localized corrosion of two supermartensitic 13Cr stainless steels under different solution conditions, with the results showing higher pitting corrosion resistance for material 2S13Cr. Temperature and chloride concentration increment were found to contribute to pitting corrosion failure.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Federico R. Garcia-Galvan, Santiago Fajardo, Violeta Barranco, Sebastian Feliu Jr
Summary: The corrosion behavior of AZ31B Mg alloy exposed to different solutions was investigated using various techniques including EIS, weight loss measurements, and surface characterization. The study compared corrosion rates determined by weight loss with EIS data and evaluated changes in the protective properties of the corrosion product layer. The Stern-Geary coefficients were calculated for each solution to provide reference B' values for future studies on improving the accuracy of corrosion rates in simulated body solutions.
Article
Electrochemistry
Longfei Xie, Wenlong Zhou, Shiwen Zou, Xuesong Fu
Summary: This paper presents a research on the corrosion behavior of Ti-15-3 alloy overlapped with aluminized PVC film in salt spray. It reveals severe corrosion on aluminized PVC film in the coupled regions due to crevice and/or galvanic corrosion, while Ti-15-3 alloy in the coupled regions only experienced minor corrosion. Through electrochemical and microscopy analysis, the corrosion mechanism under different conditions is revealed.
Article
Engineering, Manufacturing
Yuan Chai, Xiao-Bo Chen, Jesse A. Estoque, Nick Birbilis, Qinghua Qin, Tomas Ward, Paul N. Smith, Rachel W. Li
Summary: This study analyzed the anatomical asymmetry of pelvic models and found that symmetrical analysis and deviation color maps can assist with implant selection and customized design, improving the accuracy and overall standard of 3D printed implants.
3D PRINTING AND ADDITIVE MANUFACTURING
(2023)
Article
Metallurgy & Metallurgical Engineering
S. D. Wang, M. Y. Wu, D. K. Xu, En-hou Han
Summary: The wear resistance of an Mg-Zn-Y-Zr alloy was significantly improved after a heat treatment, regardless of the testing condition (air or NaCl solution). The dominant wear mechanism was abrasive wear accompanied by oxidation in dry sliding, while corrosive wear was dominant in the NaCl solution. The heat treatment resulted in the homogeneous distribution of fine I-phase precipitates, which enhanced the corrosive wear resistance and reduced wear, corrosion, and wear-corrosion synergy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Guangli Bi, Siqi Chen, Jing Jiang, Yuandong Li, Tijun Chen, Xiao-Bo Chen, Duyao Zhang, Dong Qiu, Mark Easton
Summary: The effects of laser surface remelting (LSR) on microstructure and corrosion properties of as-cast Mg-12Dy-1.1Ni alloy were investigated. LSR treatment resulted in grain refinement and the formation of a continuous network of 18R-LPSO phase on dendrite boundaries, leading to improved corrosion resistance of the alloy.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Shidong Wang, Weixing Chen
Summary: Stress corrosion cracking (SCC) can cause catastrophic failure of buried pipelines for oil and gas transmission. This paper reviews the recent progress on stage 1b stress corrosion crack initiation and growth for buried pipeline steels. It discusses the effects of loading conditions and their interactions on stage 1b growth, with an emphasis on high pH SCC and a comparison with near-neutral pH SCC. The paper highlights the importance of stage 1b in pipeline integrity management and identifies the need for future research on stage 1b SCC initiation and growth of pipeline steels.
Article
Materials Science, Multidisciplinary
Kai Rui Wang, Asma Lamin, Amy J. J. Spark, Liam Ward, Ivan Cole, Xiao-Bo Chen
Summary: The traditional aqueous electrolyte used for studying soil-related corrosion in laboratories does not accurately represent the physical features of soil. This article introduces a semi-solid agar system that can replicate the structure of soil for corrosion study. The results show that the agar system has similar oxygen diffusion characteristics to soil, weakening the cathodic activity of steel specimens and leading to different corrosion characteristics compared to aqueous electrolytes. The solid nature of agar outperforms aqueous electrolytes in simulating soil-related corrosion responses at the laboratory scale.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Electrochemistry
Shuliang Wang, Xujia He, Shidong Wang, Xin Huang, Mingyu Wu, Dinghan Xiang
Summary: In this study, FeCoS2/Co4S3 nanoparticles were synthesized and loaded on nitrogen-doped graphene foam to form a 3D network structure. The resulting hybrid catalyst exhibited outstanding electrocatalytic performance and has great potential for large-scale water electrolysis.
ELECTROCHIMICA ACTA
(2023)
Article
Metallurgy & Metallurgical Engineering
Chang-Jian Yan, Bo Guan, Yun-Chang Xin, Ling-Yu Zhao, Guang-Jie Huang, Rui Hong, Xiao-Bo Chen, Paul K. Chu
Summary: The dual twin structure in a biomedical Mg-6Zn-0.5Zr alloy can eliminate tension-compression yield asymmetry and effectively reduce corrosion anisotropy.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Qiushi Deng, Steffen Jeschke, Mohd Rafiuddin Jakeria, Paul White, Sabine Hirth, Philipp Eiden, Jan N. Gorges, Xiao-Bo Chen, Patrick Keil, Ivan Cole
Summary: This work develops a synergistic inhibiting strategy using two distinct aromatic heterocyclic ring systems to protect electro-galvanised steel against aqueous corrosion. The formulated mixture shows an enhanced inhibitory efficiency of 96% after 7-day immersion in a NaCl solution. Surface and electrolyte chemistry analysis reveals a two-step process in the growth of the protective layer, reflecting the sequential responses of each inhibitor's mode-of-action. This synergistic inhibition formulation offers potential to modify corroded ZE surfaces.
Article
Chemistry, Physical
Yan Zhang, Lijin Dong, Hang Li, Shidong Wang, Li Liu, Qinying Wang
Summary: The role of beach and peninsula partially mixed zones (PMZs) in sulfide stress corrosion cracking (SSCC) behavior of the fusion boundary (FB) region in Inconel 625/X80 weld overlay was investigated. The large misorientation and low deformation compatibility of the austenite-martensite boundary promote hydrogen accumulation and increase cracking susceptibility. Moreover, local anodic dissolution and hydrogen accumulation due to the large dimension PMZ can easily transform corrosion defects into cracks. After SSCC initiation, the crack mainly propagates along the Inconel 625/PMZ interface and the austenite matrix.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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
Chemistry, Multidisciplinary
Minggang Xie, Chunguang Li, Siqi Zhang, Zhe Zhang, Yuxin Li, Xiao-Bo Chen, Zhan Shi, Shouhua Feng
Summary: The development of fast charging materials is crucial for large-scale and sustainable energy storage. This study presents a novel Bi2Se3-ZnSe heterostructure as an excellent fast charging material for Na+ storage. The introduction of ultrathin Bi2Se3 nanoplates with topological insulator metallic surfaces greatly reduces charge transfer resistance and improves overall electrical conductivity. The composite exhibits excellent high-rate performance and electrochemical stability, making it a promising alternative for further exploration of topological insulators and advanced heterostructures.
Article
Chemistry, Multidisciplinary
Siqi Zhang, You-Liang Zhu, Siyuan Ren, Chunguang Li, Xiao-Bo Chen, Zhenjiang Li, Yu Han, Zhan Shi, Shouhua Feng
Summary: In this study, a nitrogen-rich covalent organic framework (TB-COF) was designed as an aqueous anode for calcium ion batteries, addressing the challenges of organic materials' solubility and low electronic conductivity. TB-COF demonstrated a high reversible capacity and long cycle life, with a validated redox mechanism and identification of a novel active site for calcium ion storage.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Jiexi Liang, Binbin Deng, Chuanqiang Li, Yong Dong, Naiguang Wang, Zhengrong Zhang, Shidong Wang
Summary: The microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated. The results showed that the grain size and crystallographic orientation played important roles in corrosion resistance. In addition, all three samples exhibited filiform corrosion during the initial stages of corrosion, with sample C showing the most pronounced susceptibility.
Article
Materials Science, Multidisciplinary
Shuliang Wang, Xiaofei Peng, Yi Yang, Shidong Wang, Mingyu Wu, Ping Hu, Chunyan Fu
Summary: This study investigated the effect of K2ZrF6/Al2O3 composite additives on micro-arc oxidation ceramic coatings and found that the additives can improve the performance and corrosion resistance of the coatings.
Article
Chemistry, Physical
Qiushi Deng, Jose Maria Castillo-Robles, Ernane de Freitas Martins, Pablo Ordejon, Jan-Niclas Gorges, Philipp Eiden, Xiao-Bo Chen, Patrick Keil, Ivan Cole
Summary: This study investigates the distinct adsorption behaviors induced by different chemical functionalities on the corrosion of zinc steel. The results show that both inhibitors exhibit corrosion inhibition effects on zinc steel through different mechanisms.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(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.
