Article
Materials Science, Multidisciplinary
Zhihong Wu, Hongchao Kou, Nana Chen, Zhixin Zhang, Fengming Qiang, Jiangkun Fan, Bin Tang, Jinshan Li
Summary: The study investigated the effect of microstructure features on the high-cycle fatigue behavior of Ti-7Mo-3Nb-3Cr-3Al (Ti-7333) alloy. It was found that fatigue strength is closely related to microstructure features, especially the alpha(p) percentage. The alloy with lower alpha(p) percentage exhibited higher scatter in fatigue data and bimodal fatigue behavior.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
C. Lavogiez, C. Dureau, Y. Nadot, P. Villechaise, S. Hemery
Summary: The fatigue behavior of Ti-6Al-4V with a bi-modal microstructure was investigated using different waveforms, load ratios, and frequencies. It was found that cracks were initiated along (0001) twist grain boundaries, which is consistent with prior studies. The results also showed that the critical microstructural configurations were not sensitive to environmental factors, free surfaces, loading conditions, and microstructure and composition.
Article
Engineering, Mechanical
S. Hemery, J. C. Stinville
Summary: This study monitored the microstructurally small crack growth in Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo with equiaxed and bimodal microstructures. The influence of microstructure on the lifetime variability observed in Ti alloys was evaluated, and primary alpha grains, basal plane cracking, and misalignment across boundaries were identified as key features for high crack growth rates. Dwell periods were found to induce significant small crack acceleration.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Nanoscience & Nanotechnology
Zhihong Wu, Hongchao Kou, Jinshan Li, Nana Chen, Zhicheng Xi, Fan Sun, Frederic Prima
Summary: In this study, low-cycle fatigue tests were conducted on the dual phase titanium alloy Ti-5Al-7.5V at room temperature to investigate the deformation mechanisms and crack initiation. It was found that planar dislocation slip, localized at the basal and prismatic planes of the alpha phase, was the primary deformation mode. Multiple slips occurred simultaneously within a single grain. Microcracks were observed along the basal slip bands, but were confined within the primary alpha grains without propagating to the surrounding transformed beta matrix. The presence of silicides in contact with the microcracks and slip bands did not lead to crack initiation. It remains unclear whether the silicides can act as dislocation sources for planar slips and facilitate crack nucleation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Mohammad M. I. Hammouda
Summary: This study develops a fracture mechanics model to simulate cracking events during the fatigue crack initiation period, taking into account notch surface cracking activities at the root of a notch. The model is validated using experimental data and predicts the effect of factors controlling the notch fatigue crack initiation behavior.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Wei Song, Hai Wang, Yi Li, Shuyuan Zhang, Ling Ren, Ke Yang
Summary: A Ti6Al4V5Cu alloy with a transformation induced plasticity (TRIP) effect was developed in this study, which exhibited improved tensile strength and fatigue properties compared to the traditional Ti6Al4V alloy. The alloy's strength was enhanced through grain refinement and phase transformation optimization. The results showed that the tensile strength and elongation of the TRIP Ti6Al4V5Cu alloy were increased by 23.7% and 46.7%, respectively, compared to the traditional Ti6Al4V alloy. Additionally, the fatigue life of the Ti6Al4V5Cu alloy was 2-5 times longer than that of the Ti6Al4V alloy under the same strain amplitude. The mechanisms behind the improved properties were also elucidated, providing a research foundation for the development of high-performance titanium alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zhong Zhang, Chaowen Huang, Zilu Xu, Jiang Yang, Shaolei Long, Changsheng Tan, Mingpan Wan, Dan Liu, Shengli Ji, Weidong Zeng
Summary: The high cycle fatigue (HCF) properties and microcrack initiation behavior of Ti-55531 alloy with a multilevel lamellar microstructure under various notch radii were systematically investigated. The reduction of notch root radius significantly promotes fatigue microcrack initiation, and then dramatically reduces the HCF life and strength of the alloy. The cyclic deformation of the alloy is mainly controlled by the slipping and deformation twinning in plates, and the primary fatigue crack initiation micro-mechanism is a/b interface cracking induced by slipping and twinning at all notch HCF specimens.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Tao Gao, Hongqian Xue, Zhidan Sun, Delphine Retraint, Yanli He
Summary: The fatigue behavior and damage mechanisms of a Ti-8Al-1Mo-1V alloy were investigated in the very high cycle fatigue (VHCF) regime. It was found that the crack initiation area is characterized by nano-marking facets and flat facets induced by slip activity. The large scatter in fatigue life can be attributed to slip inhomogeneity.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Mechanical
Wencheng Liu, Jia Huang, Jianwen Liu, Xinhua Wu, Kai Zhang, Aijun Huang
Summary: This study investigates the fatigue crack initiation in MTRs using a crystal plasticity model, revealing that crack initiation is mainly attributed to high plastic strain and stress concentrations.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Mechanical
C. Bean, J. C. Stinville, A. Nait-Ali, Z. Wu, F. Sun, F. Prima, S. Hemery
Summary: Twist grain boundaries (BTGB) are critical microstructures for fatigue crack initiation in titanium alloys. Different microstructures of Ti-Al-V based alloys were tested in low-cycle fatigue. Early cracking occurred at BTGB in all alloys and microstructures. The weak sensitivity to moderate differences in α and β stabilizers content and microstructural features was observed. Criteria for identifying crack initiation sites were defined. An automatic processing routine was applied to analyze the spatial distribution of BTGB susceptible to cracking. The low associated density implies that large microstructural regions must be considered to include microstructural configurations prone to crack nucleation, which may play a critical role in the high lifetime variability of Ti alloys.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Mechanics
Weiqian Chi, Wenjing Wang, Wei Xu, Gen Li, Xin Chen, Chengqi Sun
Summary: The fatigue strength of TC17 titanium alloy with surface defects is greatly influenced by the size of the defects. When the defect size exceeds a critical value, cracks initiate from the defects, and the fatigue strength can be expressed mathematically. The model has also been validated by experimental results of metallic materials in literature.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Engineering, Mechanical
Min Zhan, Chang Liu, Yajun Dai, Xiangyu Wang, Yao Chen, Yongjie Liu, Chong Wang, Lang Li, Qingyuan Wang, Chao He
Summary: This study investigated the high cycle fatigue crack initiation and propagation behaviors in coarse-grained FeCrAl alloys, focusing on the relationship between small crack paths and local microstructure. The results indicate that small cracks initiate along the {100} slip plane due to the combined influence of local microstructure and shear stress. The study also reveals the dominant role of the stress intensity factor (SIF) in determining stress and strain fields at the crack tip, with increasing SIF as the crack propagates.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Conghui Liu, Rhys Thomas, Tianzhu Sun, Jack Donoghue, Xun Zhang, Tim L. Burnett, Joao Quinto da Fonseca, Michael Preuss
Summary: In this study, the relationship between plastic slip activity and fatigue crack initiation was investigated in a near-alpha titanium alloy. The findings showed that plasticity at low stress levels was dominated by basal slip and two types of cracking were observed parallel to basal slip traces. Detailed analysis revealed the mechanisms behind the crack initiation, such as out-of-plane Burgers vector activity and crystallographic facet formation. A new parameter was developed based on the geometric factors to predict transgranular surface crack initiation sites.
Article
Engineering, Mechanical
J. A. Balbin, V Chaves, N. O. Larrosa, C. Madrigal, A. Navarro
Summary: In this study, the crack paths of hollow notched samples were analyzed experimentally, and the crack initiation points and directions were observed. The internal crack paths were also determined through the analysis of fracture surfaces. It was found that the crack initiation points were close to the maximum principal stress points at the hole contour, and the crack directions at initiation were generally close to Mode I direction.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Engineering, Mechanical
Fulin Liu, Haotian Peng, Yongjie Liu, Chong Wang, Qingyuan Wang, Yao Chen
Summary: The fatigue behavior of titanium alloy with different stress ratios was studied at 400 degrees C in the VHCF regime. The initiation of cracks depends on the formation of facets, which is related to the maximum shear stress. The formation of facets is induced by basal or prismatic slips with a high Schmid factor inside alpha(p) grains. The morphology of alpha(p) grains affects the initiation of cracks. High-density geometrically necessary dislocations (GNDs) accumulate along with the slips and form subgrain boundaries (sub-GBs) within alpha(p) grains. With cyclic loading, the created sub-GBs further form facets, initiating microcracks.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Materials Science, Multidisciplinary
Ke Hua, Qiong Wan, Hongchao Kou, Fan Zhang, Yongliang Zhang, Jinshan Li
Summary: The hot compression behavior of a metastable beta titanium alloy at 600 degrees C was investigated to analyze the correlation between phase transformation and deformation behavior. The study revealed the presence of four distinct stages in the deformation behavior: near linear hardening, discontinuous yielding, hardening after discontinuous yielding, and final softening. The phase transformation and movement of dislocations play crucial roles in the hardening and softening behavior at different stages of deformation.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Ke Hua, Fan Zhang, Hongchao Kou, Qiong Wan, Yongliang Zhang, Weimin Gan, Jinshan Li
Summary: The study found that during compression of the Ti-7Mo-3Nb-3Cr-3Al alloy, the selection of alpha variants is strongly influenced by imposed strain and load, depending on the effective strain distribution induced by macroscopic shape deformation. Four Burgers orientation relationship variants were selected in the center region of the sample, while only two variants were selected in the edge region.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Nana Chen, Hongchao Kou, Zhihong Wu, Fengming Qiang, Ke Hua, Chuanyun Wang, Bin Tang, Jinshan Li, J. M. Molina-Aldareguia
Summary: A strain-transformable microstructure was successfully designed in a metastable beta Ti-7Mo-3Nb-3Cr-3Al alloy with enhanced mechanical properties. By introducing alpha precipitates and the TRIP effect, the traditional trade-off between strength and ductility was overcome. The microstructure consisted of stress-induced martensitic phase transformations, martensitic twinning, and dislocation slip, contributing to the improved mechanical properties. This study may provide a new strategy for designing high-performance metastable beta-Ti alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Mechanical
Ke Hua, Yanlin Tong, Fan Zhang, Chuanyun Wang, Hongchao Kou, Hongxing Wu, Haifeng Wang
Summary: The study focused on the fretting behaviors of a metastable beta titanium alloy with different microstructures. Results showed that the wear volume is more sensitive to stroke amplitude, and mixed abrasive-adhesive wear is dominant. Different microstructural features significantly affect wear resistance and subsurface microstructure stability. The findings provide valuable data for predicting fatigue life after fretting.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xiaolin Li, Chi Jin, Haozhe Li, Xiaoxiao Hao, Ke Hua, Xiangtao Deng, Haifeng Wang, Zhaodong Wang
Summary: This study developed a novel series of AlCrCuFeNi2Vx high-entropy alloys and investigated the relationship between composition, processing, microstructure, and mechanical properties. The addition of V element improved the strength and ductility of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Ke Hua, Qiong Wan, Ziqi Zhou, Qing Zhou, Xiaolin Li, Hongxing Wu, Haifeng Wang
Summary: By reducing the content of Nb element, the wear resistance of TiZrHfNb refractory high entropy alloys (RHEAs) can be significantly improved. The wear loss is directly related to the subsurface instabilities induced by plastic deformation during friction, which can be attributed to the grain refinement and deformation-induced phase transformation.
Article
Nanoscience & Nanotechnology
Ke Hua, Yongliang Zhang, Yanlin Tong, Fan Zhang, Hongchao Kou, Xiaolin Li, Haifeng Wang, Jinshan Li
Summary: An optimized thermomechanical processing method was used to treat β titanium alloy, resulting in a fine equiaxed microstructure with a mean size of 160 nm and significantly enhanced yield strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Jianxin Dong, Hongxing Wu, Ying Chen, Yongliang Zhang, Yunjie Wu, Shaochong Yin, Yin Du, Ke Hua, Haifeng Wang
Summary: Electrochemical boronizing was applied to improve the surface hardness and self-lubrication performance of AlCoCrFeNi2.1 HEA in this study. The results showed that electrochemical boronizing could efficiently form a boronized layer and reduce friction and wear.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Fan Zhang, Jianbao Zhang, Xinlei Lu, Ke Hua, Yuhong Zhao, Haifeng Wang
Summary: Rapid solidification in undercooled Ni-18.7 at.%Sn eutectic melts was captured in real-time using a high-speed high-resolution camera and characterized using electron backscattering diffraction. The crystallographic orientation relations (ORs) between HCP-Ni 3 Sn (alpha-Ni) subsets were analyzed, revealing the independent presence of HCP-Ni 3 Sn twins regardless of undercooling. The formation mechanism of HCP-Ni 3 Sn twins was explored by considering twinning and allotropy transformation, and a reversed OR transition analysis was conducted.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xiaolin Li, Haozhe Li, Qian Li, Chi Jin, Ke Hua, Haifeng Wang
Summary: This study developed a series of refractory high-entropy alloys (RHEAs) with different Al content to improve the oxidation and wear resistance at elevated temperatures. The addition of Al significantly improves the strength and oxidation resistance of the alloys. The friction coefficient and wear rate decrease with increasing Al content, attributed to the combined effect of mechanical properties and oxidation resistance.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Mechanical
Ying Chen, Hongxing Wu, Jianxin Dong, Shaochong Yin, Ke Hua, Haifeng Wang
Summary: The study achieved a significant increase in surface hardness and enhancement of self-lubrication for the CoCrNi MEA using powder-pack boronizing, forming dual reaction layers and reducing friction and wear rate in deionized water condition.
Article
Materials Science, Multidisciplinary
Yue Ren, Tingyi Yan, Zhuobin Huang, Qing Zhou, Ke Hua, Xiaolin Li, Yin Du, Qian Jia, Long Zhang, Haifeng Zhang, Haifeng Wang
Summary: This study demonstrates an improvement in wear resistance for a Ti-based bulk metallic glass composite at cryogenic temperatures. The wear resistance improvement is associated with the suppressed martensitic transformation and increased strength, making the material an excellent candidate for cryogenic wear applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ke Hua, Yue Cao, Na Li, Yanlin Tong, Yifan Song, Fan Zhang, Xiaolin Li, Hongxing Wu, Haifeng Wang
Summary: The synergistic effect of lead-bismuth eutectic (LBE) corrosion and fretting on the damage of a 316 stainless steel was thoroughly investigated. The interaction between the LBE corrosion and fretting plays a key role in materials damage. The dissolution of Ni element leads to a large number of vacancies, lattice defects and built-in internal strain, making the material itself more prone to damage during the wear. Additionally, the shear strain induced by fretting can break the oxide layer formed during friction, leading to the exposure of new materials. This study can provide essential information on damage of heat transfer tubes.
Article
Nanoscience & Nanotechnology
Qian Li, Xiaolin Li, Chi Jin, Haozhe Li, Ke Hua, Xiangtao Deng, Haifeng Wang
Summary: In this study, the Fe50Mn30Co10Cr10 alloy doped with 30 ppm B atoms and proper thermo-mechanical processing has achieved excellent synthetic strength and plasticity. The grain refinement strengthening introduced by B doping and the strong dislocation strengthening of inhomogeneity structure from annealing treatment contribute to enhanced yield strength. Multiple structure evolution during the deformation process leads to excellent ductility. FCC twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) effects contribute to the high plasticity of the alloy. The combination of interstitial atoms doping with TWIP and TRIP effects provides a feasible way for designing high-strength plastic alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Optics
Haitao Ding, Yue Cao, Ke Hua, Yanlin Tong, Na Li, Linghong Sun, Xiaolin Li, Hongxing Wu, Haifeng Wang
Summary: The laser-cladded Co-based alloy/WC/CaF2 composite coating improved the surface hardness and self-lubrication performance of 316 stainless steel, leading to enhanced fretting wear resistance at room temperature and 500 degrees C. The coating consists of alpha-Co, Cr23C6, and WC phases, with a microhardness of 600 HV0.2. In addition, the composite coating effectively prevents oxidation and reduces the coefficient of friction (COF) and wear loss at high fretting temperature.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Tongyu Han, Haifeng Shi, Yigang Chen
Summary: In this study, a novel S-scheme system was built by combining CuO with BiVO4 to activate PMS for antibiotic degradation. The system exhibited excellent visible light absorption performance and remarkable charge separation ability, suggesting its potential application in enhancing PMS activation and purifying antibiotics in water.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Linlin Zhou, Tao Yang, Chunyu Guo, Kang Wang, Enhui Wang, Laipan Zhu, Hailong Wang, Sheng Cao, Kuo-Chih Chou, Xinmei Hou
Summary: Piezoelectric silicon carbide (SiC) has been considered for various applications due to its superior properties. However, its brittleness and unsatisfactory piezoelectric response have limited its use. In this study, PVDF/6H-SiC composite fiber films were fabricated and used for assembling high-performance energy harvesters and sensors. The results showed significant improvements in piezoelectric response and sensitivity compared to pure PVDF films. First-principles calculation and finite element analysis confirmed the effect of SiC nanoparticles on the composite film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Y. F. An, X. P. Chen, L. Mei, P. Ren, D. Wei, W. Q. Cao
Summary: This study systematically investigates the precipitation sequence of Fe-28Mn-11Al-1C-5Ni austenitic low-density steel and its influence on mechanical properties. The results reveal the transformation pathway of kappa' -carbides and B2 particles under different aging conditions. This research is meaningful for guiding the design of new generation dual-nano precipitation austenitic lightweight steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lei Yang, Tingkai Zhao, Abdul Jalil, Huijun Luo, Tao Jiang, Yuan Shu, Yazhou Yin, Weiyu Jia
Summary: In this study, a strategy utilizing oxygen vacancy concentration modulation was used to successfully grow semiconducting single-walled carbon nanotubes (s-SWCNTs) with narrow diameters. The Fe0.01Mg0.99O/CeO2(3) catalyst was employed to provide oxygen vacancies, allowing for selective etching of chemically active carbon nanotube caps during the growth process. The optimized conditions resulted in high purity s-SWCNTs with uniform diameters.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Letter
Materials Science, Multidisciplinary
Lingjun Xu, Pruch Kijkla, Sith Kumseranee, Suchada Punpruk, Tingyue Gu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
X. P. Hu, Y. H. Zhang, C. B. Liu, H. Z. Cui
Summary: In this study, a novel polyaniline (PANI) nanosheet with barrier and passivation functions was synthesized, and its interaction with polymeric resin was enhanced by polydopamine (PDA) wrapping. The composite coating with incorporated PANI@PDA nanosheets showed improved corrosion resistance by providing a longer penetration path and inducing the formation of a passivation film on the metal substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Yan Zhang, Xuehua Liu, Zhiqiang Guo, Chenyu Jia, Feng Lu, Zirui Jia, Guanglei Wu
Summary: In this study, a self-assembling-etching-anchoring growth method was proposed to prepare MXene@Co electromagnetic wave absorbing materials. The hollow structure design and surface anchored growth of magnetic Co particles significantly enhanced the wave absorption performance of the absorber.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yajing Ren, Yunfeng Li, Guixu Pan, Ning Wang, Yan Xing, Zhenyi Zhang
Summary: Photocatalytic technology utilizing sunlight as a driving force can convert solar energy into other energy sources for storage and use. CdS, as a typical reducing semiconductor, has attracted attention in photocatalysis due to its suitable bandgap and strong reducing ability. However, the photocatalytic performance of CdS is limited by carrier recombination and photocorrosion. Therefore, CdS has been widely developed as a reducing photocatalyst in constructing S-scheme heterojunctions to overcome these limitations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Diao-Feng Li, Chun-Guang Bai, Zhi-Qiang Zhang, Hui-Bo Zhang, Nan Li, Jian Zhao
Summary: A novel compliant spinal fixation based on compliant mechanisms is designed to effectively reduce stress-shielding effect and adjacent segment degeneration (ASD), but it requires high properties of the used materials. Bulk metallic glasses (BMGs), as young biomaterials, demonstrate excellent comprehensive properties, making them attractive for compliant spinal fixation. In this study, the large deflection deformation behaviors of Zr61Ti2Cu25Al12 (at.%, ZT1) BMG beam were systematically investigated, including elastic, yielding, and plastic deformations. The theoretical nonlinear analytical solution curve predicts the load-deflection relation within the elastic deformation regime and assists in capturing the yielding event, serving as a powerful design tool for engineers. To accurately capture the beginning of the yielding event in biomedical implant applications, the concept of bending proof strength (sigma p,0.05%) with tiny permanent strain of 0.05% was proposed and determined, which is significant for setting the allowable operating limits of the basic flexible elements. The plastic deformation driven by the bending moment can be classified into two stages: the initial stage characterized by nucleation and intense interaction of shear bands, and the second stage dominated by the progressive propagation of shear bands and emergence of shear offsets. The plasticity of BMG beam structures depends on the BMG's inherent plastic zone size (rp), and when the half beam thickness is less than that of rp, the plastic deformation of BMGs behaves in a stable manner, effectively serving as the margin of safety.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yanlin Li, Zhu Ma, Shanyue Hou, Qianyu Liu, Guangyuan Yan, Xiaoshan Li, Tangjie Yu, Zhuowei Du, Junbo Yang, Yi Chen, Wei You, Qiang Yang, Yan Xiang, Shufang Tang, Xuelin Yue, Meng Zhang, Wenfeng Zhang, Jian Yu, Yuelong Huang, Jiale Xie, Chun Tang, Yaohua Mai, Kuan Sun
Summary: This paper provides an overview of hydrogen progress from solar energy to solar cells, with a focus on photovoltaic-electrolysis and photoelectrochemical/photovoltaic systems. Both systems have achieved a solar-to-hydrogen efficiency of over 10% and show great potential for large-scale application. The challenges and opportunities in this field, including configuration design, electrode materials, and performance evaluation, are summarized. The paper also analyzes and presents perspectives on the potential commercial application and further scientific research for the development of solar-to-hydrogen.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
L. K. Huang, F. Liu, M. X. Huang
Summary: The bainite transformation in medium Mn steels has been experimentally and theoretically studied, and it has been found that the transformation kinetics is slow. However, the introduction of dislocations can significantly accelerate the transformation rate. A new "carbon depletion mechanism" is proposed to explain the role of dislocations in the acceleration of bainite transformation, and a physical model is developed to quantitatively understand the kinetics of bainite transformation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Jing Qiao, Lutong Li, Jiurong Liu, Na Wu, Wei Liu, Fan Wu, Zhihui Zeng
Summary: Rare earth plays a crucial role in electromagnetic wave absorption materials, and the strategies of doping rare earth elements and constructing rare earth oxide composites are important for the fabrication of high-efficiency electromagnetic wave absorption materials. This review provides a comprehensive summary of the research background, classification, features, progress, and future development of rare earth electromagnetic wave absorption materials, offering guidance for future development.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jiacheng Ge, Yao Gu, Zhongzheng Yao, Sinan Liu, Huiqiang Ying, Chenyu Lu, Zhenduo Wu, Yang Ren, Jun-ichi Suzuki, Zhenhua Xie, Yubin Ke, Jianrong Zeng, He Zhu, Song Tang, Xun-Li Wang, Si Lan
Summary: Fe-based metallic glasses are promising materials in the fields of advanced magnetism and sensors. This study proposes a novel approach to tailor the amorphous structure through liquid-liquid phase transition, and provides insights into the correlation between structural disorder and magnetic order. The results show that the liquid-liquid phase transition can induce more locally ordered nanodomains, leading to stronger exchange interactions and increased saturation magnetization. The increased local heterogeneity also enhances magnetic anisotropy, resulting in a better stress-impedance effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Hao Yu, Xin Kou, Xueqing Zuo, Ding Xi, Haijun Guan, Pengfei Yin, Lijia Xu, Yongpeng Zhao
Summary: Metal-organic frameworks derived composites are promising EMW absorbers. Cation substitution can improve their absorption performance by regulating morphology and atomic space occupation. However, the mechanisms of how cation substitution affects EMW absorption performance are still not well understood. In this study, imidazolic MOFs were fabricated and tailored by cation substitution strategy to prepare porous composites. The samples showed optimal reflection loss and effective absorption bandwidth values under low filling rate and thin thickness conditions. The intercoupling between multiple atoms and the porous structure introduced by cation substitution contribute to the improved absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lina Wang, Peiyi Yan, Huairui Chen, Zhuo Li, Shu Jin, Xiaoxiang Xu, Jun Qian
Summary: The narrow bandgap semiconductor MgIn2S4 has been grown onto In2O3 nanofibers using an in situ growing method. The resulting MgIn2S4-In2O3 hybrid nanofibers exhibit strong visible light absorption and intimate MgIn2S4/In2O3 heterointerfaces, leading to highly efficient photocatalytic disinfection of Escherichia coli.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
