Article
Materials Science, Multidisciplinary
Lingying Ye, Xiaodong Liu, Jianguo Tang, Shengdan Liu, Yong Zhang
Summary: In an Al-Mg-Li alloy, S-1 phase precipitates in rod-shaped morphology at 300 degrees C, which are not dissolved until coarsening is finished at 400 degrees C. The dissolution of small precipitates and spheroidization of the rod-shaped precipitates reduce the total precipitate-matrix interface energy, providing the driving force for coarsening.
Article
Materials Science, Multidisciplinary
M. H. Nie, Y. L. Li, P. F. Jiang, Z. H. Zhang
Summary: NiTi alloy was prepared on 316 substrate by laser cladding. The study aims to clarify the mechanism of crack formation and interface bonding. A low-stress intermediate layer is generated at the bonding surface. The high hardness brittleness caused by Fe element leads to coating cracking, which exhibits transgranular fracture. The preferred grain orientation varies across the coating, benefiting from the conversion of the maximum temperature gradient.
Article
Chemistry, Physical
Jiaying Huang, Siyu Feng, Shiyong Li, Cuilan Wu, Jianghua Chen
Summary: The study systematically investigated the localized corrosion behavior and microstructure of an Al-2.23Cu-0.96Li (wt%) alloy using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that the GPB zones in the alloy do not significantly affect the overall propagation direction of crystallographic corrosion, but are closely related to the formation of nanoscale localized corrosion morphology in the crystallographic corrosion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Qiao Zeng, Xuehong Min, Zhigang Luo, Houfu Dai, Bokai Liao
Summary: Superhydrophobic Zn-Al layered double hydroxides (LDHs) coatings were synthesized on the surface of 3003 aluminum alloy using hydrothermal and impregnation methods. The corrosion resistance of the coatings was significantly enhanced, and the effect of different dopants on corrosion performance was studied.
Article
Materials Science, Multidisciplinary
Zhi-Jun Zhao, Xin-Fu Gu, Meng Li, Ming-Le You, Mohan Chen, Fu-Zhi Dai, Zhang-Zhi Shi
Summary: A nano-precipitate of Si-Mg2Si core-shell structure is discovered in Al alloys for the first time. The orientation relationship between the ss-Mg2Si shell and the Si core is predicted by a near row matching model based on interfacial good matching. First-principles calculation reveals that heterogeneous nucleation of Mg2Si on Si is favored due to reduction of nucleation barrier.
Review
Metallurgy & Metallurgical Engineering
Zhang-Zhi Shi, Hong-Ting Chen, Ke Zhang, Fu-Zhi Dai, Xue-Feng Liu
Summary: Crystallography of precipitates in Mg alloys plays a crucial role in explaining and predicting alloy microstructures and properties. This study introduces a general theory of singular interface to interpret precipitate morphology and orientation relationship, summarizes recent experimental findings and theoretical advances, and proposes future research directions in this field.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Chemistry, Physical
Hiroyuki Watanabe, Toru Murata, Shunsuke Nakamura, Naoko Ikeo, Toshiji Mukai, Koichi Tsuchiya
Summary: Cold-working was found to facilitate the formation of sigma phase in CrMnFeCoNi alloy under specific heat treatment conditions. The resulting sigma-body-centered cubic (BCC) aggregates consist of sigma phase spines and BCC particles, forming rapidly at the face-centered cubic/sigma interface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
F. Belelli, R. Casati, C. Andrianopoli, F. Cuccaro, M. Vedani
Summary: Only a few high strength aluminum alloys can be processed using Laser Powder Bed Fusion due to the occurrence of hot cracks during solidification. The addition of zirconium and scandium in aluminum-magnesium alloys has been proven effective in suppressing solidification cracking and improving strength. Therefore, it is necessary to focus on novel aluminum alloys with enhanced processability and low scandium content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Xueming Wei, Lijun Zhang, Chunzhi Zhang, Gong Li
Summary: Although most BCC-based high-entropy alloys have high strength and excellent high temperature mechanical properties, their low plasticity greatly limits their application. In this study, a new BCC/B2 AlCrFeMnNi2 high-entropy alloy with a unique sunflower-like eutectic microstructure was prepared. This alloy exhibited high yield strength, fracture strength, and compressive plastic strain, surpassing many other BCC/B2 high-entropy alloys. The excellent mechanical properties are attributed to its unique microstructure consisting of coherent interface and bimodal distribution of precipitates. Our results provide a meaningful reference for improving the plasticity of BCC-based high-entropy alloys.
Article
Materials Science, Multidisciplinary
Mingjin Wu, Feifei Wu, Mengjun Long, Pengcheng Ye, Feng Jiang, Jingyu Jiang
Summary: This study investigates the microstructure evolution and fracture mechanism of the metal/ceramic interfacial region in Al-Mg-Sc alloy with micro-arc oxidation treatment.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Dong-Ming Jin, Zhen-Hua Wang, Jin-Feng Li, Ben Niu, Qing Wang
Summary: This study investigated the formation and strengthening mechanism of coherent BCC/B2 microstructure in Al-Ti-Zr-Nb-Ta-Cr/Mo refractory high-entropy alloy system. It found that the alloy with Cr0.5Mo0.5 exhibited the best mechanical performance after aging at 873 K.
Article
Chemistry, Physical
Hongcan Chen, Tianci Xie, Quan Liu, Yuanding Huang, Bin Liu, Qun Luo, Qian Li
Summary: This study further improved the mechanical properties and thermal conductivity of Mg-Zn-La/Ce alloys through aging treatment, achieving good comprehensive performance. The addition of La/Ce forms a ternary tau 1 phase that reduces the supersaturation of the Mg matrix and has a positive effect on thermal conductivity. Precipitation has two opposite effects on thermal conductivity, reducing supersaturation but hindering the free movement of electrons and phonons.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xuanliang Chen, Minho O, Equo Kobayashi
Summary: This study applied cyclic deformation to an Al-Mg-Cu alloy and found that it increased the strength and ductility of the alloy by introducing dislocations and promoting cluster formation. The aging behaviors of the cyclically-strengthened (CS) samples were studied, and it was found that recovery and precipitation promotion occurred regardless of pre-aging. Pre-aged CS samples showed higher strength, but interestingly, after subsequent aging, the mechanical properties of pre-aged and non-pre-aged CS samples became the same.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Weixin Lou, Hongbo Xie, Xiaobo Zhao, Junyuan Bai, Hehang Zhang, Yi Wang, Xinze Li, Hucheng Pan, Yuping Ren, Gaowu Qin
Summary: In Mg alloys, precipitation on non-basal planes is limited but crucial. However, in an aged ultralight Mg-Li-Zn alloy, precipitates dominated by C15 Laves structure can form in various habit planes, resulting in three forms of strengthening-phases: precipitate-rod, precipitate-lath, and precipitate-plate. Moreover, the non-basal precipitates can transform into the basal (Mg, Li)Zn2 Laves structure with prolonged aging. These findings provide insights into the precipitation behaviors of multi-domain Laves structures and offer guidance for designing ultralight high-strength Mg-Li based alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
Jayshri Dumbre, Shravan K. Kairy, Elaf Anber, Timothy Langan, Mitra L. Taheri, Thomas Dorin, Nick Birbilis
Summary: Scandium (Sc) containing Al-Si model alloys were heat-treated to form (Al,Si)(3)Sc phase at 350 degrees C and V-phase (AlSc2Si2) at above 450 degrees C. The hardening of the alloys was attributed to the coherent nanoscale (Al,Si)(3)Sc precipitates, while significant softening was observed due to the formation of coarse V-phase. The V-phase was found to have a rod morphology and six new orientation relationships with the alpha-Al matrix were determined using TEM.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Mechanical
Ba Hieu Nguyen, Ali Al-Juboori, Hongtao Zhu, Azdiar A. Gazder, Huijun Li, Kiet Tieu
Summary: White etching layers (WELs) on rail surfaces significantly impact rail life by promoting crack growth and leading to fracture. Mechanically-induced WELs, with higher hardness and more severe cracks compared to thermomechanically-induced WELs, are more detrimental to rail life.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Automation & Control Systems
Chunyang Xia, Zengxi Pan, Yuxing Li, Ji Chen, Huijun Li
Summary: This study proposes applying deep learning in visual monitoring to diagnose various anomalies during the wire-arc additive manufacturing process. Different representative CNN architectures were investigated and compared for their classification performance. The results demonstrate the effectiveness of CNN models in classifying different types of melt pool images.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Industrial
Jingwen Zhang, Liming Yu, Yongchang Liu, Chenxi Liu, Zongqing Ma, Huijun Li, Zumin Wang, Dijun Long
Summary: The study successfully bonded tungsten with ODS steel using a novel composite interlayer Zr/Cu and transient liquid phase diffusion technology. By optimizing processing parameters, a high-strength joint was fabricated.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yong Guan, Yongchang Liu, Zongqing Ma, Huijun Li, Hongyao Yu
Summary: This study investigates the anomalous temperature dependence of strength and the effect of initial microstructure on the deformation mechanism of CoNi-based superalloys. The results show that the anomalous yield occurs above 600 degrees C, and the initial microstructure has a significant impact on the deformation mechanism. The relationship between the initial microstructure and the deformation mechanism is discussed, and the contribution of secondary gamma ' precipitates to the strength at the peak temperature is quantitatively assessed.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Jian Ren, Liming Yu, Chenxi Liu, Zongqing Ma, Huijun Li, Zumin Wang, Yongchang Liu, Hui Wang
Summary: The study systematically investigated the creep properties, microstructural evolution, and fracture mechanism of 16Cr-3Al ODS steel under different uniaxial tensile stresses at 600 degrees C. The relationship between the minimum creep rate and mean creep rate was linear, with a determined threshold stress. The evolution of the Cr-rich phase played a significant role in the fracture mechanism of 16Cr-3Al ODS steel after creep deformation.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Qiuzhi Gao, Hang Shang, Qingshuang Ma, Huijie Zhang, Hailian Zhang, Huijun Li, Ziyun Liu
Summary: The study showed that the addition of Mo and Cr to Co-Ni-Al-based superalloys can form a similar three-layer oxide structure. At 1073K, a gamma'-free zone formed under the Al2O3 layer due to the depletion of Al. Co-Ni-Al-based superalloys need to overcome a large energy barrier at an earlier stage of oxidation, but exhibit good oxidation resistance at 1073K.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2022)
Article
Materials Science, Multidisciplinary
Min Hu, Yilin Sun, Jingchun He, Chong Li, Huijun Li, Liming Yu, Yongchang Liu
Summary: Isothermal compression tests were conducted on the Al-3%Mg2Si alloy in the temperature range of 300-500°C and strain rate range of 0.01-5 s-1, revealing typical dynamic recovery characteristics in the flow stress curves. A modified Arrhenius-type constitutive equation was established to describe the flow behavior. Microstructure evolution was analyzed based on the processing map. High efficiency of power dissipation regions was attributed to softening mechanisms of dynamic recovery and partial dynamic recrystallization, with Mg2Si particles also playing a positive role in the latter. Damage mechanism of unstable domains was identified as fracture and debonding of Mg2Si particles.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Manufacturing
Bintao Wu, Zhijun Qiu, Bosheng Dong, David Wexler, Zengxi Pan, Kristin Carpenter, Diego Raimundi Corradi, Huijun Li
Summary: In this study, the microstructure and mechanical properties of wire arc additively manufactured Ti6Al4V alloy with/ without magnetic arc oscillation were investigated. The results showed that the addition of magnetic arc oscillation resulted in refinement of the microstructure, modification of texture orientation, and improvement of mechanical properties of the deposition.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Mechanical
Abdul Haseeb Afridi, Hongtao Zhu, Eduardo Tovar Camacho, Guanyu Deng, Huijun Li
Summary: Rolling contact fatigue (RCF) crack is a dominant form of damage on rail surfaces caused by repeated contact with wheels. If left untreated, RCF defects such as squats and head checks can lead to rail fractures. Accurately predicting the damage under different operational conditions is crucial. A two-stage simulation strategy was proposed, investigating the mechanisms of RCF-induced cracks on rails through dynamic FEM for wheel-rail interaction and coupled static FEM/BEM for crack growth. The study found two critical wheel positions for crack propagation during wheel approach and departure from pre-existing cracks.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Mechanical
Ba Hieu Nguyen, Ali Al-Juboori, Hongtao Zhu, Qiang Zhu, Huijun Li, Kiet Tieu
Summary: This study systematically investigates the formation mechanism and evolution of white etching layers (WELs) on standard carbon (SC) rail and head hardened (HH) rail. The results show that repeated rolling contact influences the formation and distribution of WELs, and HH rail is more susceptible to WELs than SC rail.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Materials Science, Multidisciplinary
S. S. Chen, P. D. Song, J. Yin, K. Qi, H. D. Li, L. Hou, W. H. Li
Summary: This study reports on a plasma electrolytic oxidation (PEO)-treated Mg-Zn-Ca-Si amorphous alloy composite with enhanced plasticity and corrosion resistance. The coated material exhibits excellent mechanical properties in compression and a significant decrease in corrosion current density after treatment.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
J. M. Yu, T. Hashimoto, H. T. Li, N. Wanderka, Z. Zhang, C. Cai, X. L. Zhong, J. Qin, Q. P. Dong, H. Nagaumi, X. N. Wang
Summary: In this study, the microstructure of AA6082 alloy under different manufacturing processes was investigated using three-dimensional visualization. The results showed that the formation of supersaturated solute front at the α-Al solid-liquid interface is the key condition for the formation of Fe-bearing intermetallics and Mg2Si phase. Grain refinement processing leads to severe interconnectivity of Fe-bearing α-intermetallics, while intensive melt shearing process can more evenly distribute and refine the intermetallics, thereby improving the properties of the alloy.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Y. Sun, R. Jiang, L. F. He, Z. C. Li, R. D. K. Misra, H. P. Li
Summary: This study proposes a method of preparing 7075/Zr44Ti11Cu10Ni10Be25/7075 composites through stacked hot extrusion process, and systematically investigates the effects of extrusion conditions on the connected interfaces and thickness uniformity of the composites. The results show that the extrusion speed and temperature have significant effects on the crystallization and phase separation of the amorphous alloy. The most uniform and continuous interlayers can be obtained under optimal extrusion conditions, and the hardness of the interlayers is inversely related to the extrusion temperature and speed.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Manufacturing
Zhe Liu, Wei Guan, Huijun Li, Dongpo Wang, Lei Cui
Summary: This paper investigated the characteristics of traverse force (Fx), lateral force (Fy), and axial force (Fz) in bobbin tool friction stir welding (BTFSW) and their relationship with welding defects. The study found that the average value of Fy determined whether defects occurred in the weld. Analysis of material flow behavior revealed that an increase in Fy was due to severe material deposition on the retreating side (RS). Based on these findings, a decision tree model was built to predict welding defects, achieving an accuracy of 95.3%.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Chemistry, Physical
Yangfan Wang, Zhiyang Wang, Arman Hobhaydar, Zhijun Qiu, Bosheng Dong, Qinfen Gu, Zengxi Pan, David Wexler, Hanliang Zhu, Xizhang Chen, Mingxing Zhang, Huijun Li
Summary: Novel low activation medium entropy alloys (MEAs) of FeCr2V and FeCr2VW0.1 were developed as potential nuclear structural materials. The materials were fabricated using arc melting and their microstructure and mechanical properties were investigated. The results show that the developed MEAs exhibited a dual-phase microstructure consisting of body-centered-cubic (BCC) phases. The addition of W significantly enhanced the solid solution strengthening (SSS) and precipitation strengthening (PS) in the studied alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
