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学者姓名：陈俊锋
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This study investigates the effects of different annealing parameters on the microstructure, texture, and mechanical properties of hot-rolled pure yttrium plates using electron backscatter diffraction for the first time. With the increase of annealing temperature and time, the volume fraction of low-angle grain boundaries of hot-rolled pure yttrium plate decreases. While the intensity of the texture firstly decreases and then increases. During annealing at 600 degrees C, the {0002} pole density shifted from deviating from the normal direction (ND) by similar to 30 degrees to being in line with the ND as the annealing time increased, forming a typical basal texture. This can be attributed to its unique recrystallization mechanism. The strength and hardness of the as-annealed samples were significantly lower than that under the hot-rolled state, while the elongation increased when compared with the hot-rolled sample. The considerable mechanical properties of pure yttrium plate are obtained by hot rolling and following annealing at 600 degrees C for 1 h.
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| GB/T 7714 | Ruan, Wei , Luo, Linguang , Li, Jiajie et al. Effect of annealing parameters on microstructure, texture, and mechanical properties of hot-rolled pure yttrium plate [J]. | JOURNAL OF MATERIALS SCIENCE , 2025 , 60 (14) : 6387-6401 . |
| MLA | Ruan, Wei et al. "Effect of annealing parameters on microstructure, texture, and mechanical properties of hot-rolled pure yttrium plate" . | JOURNAL OF MATERIALS SCIENCE 60 . 14 (2025) : 6387-6401 . |
| APA | Ruan, Wei , Luo, Linguang , Li, Jiajie , Deng, Liping , Wang, Chen , Chen, Junfeng et al. Effect of annealing parameters on microstructure, texture, and mechanical properties of hot-rolled pure yttrium plate . | JOURNAL OF MATERIALS SCIENCE , 2025 , 60 (14) , 6387-6401 . |
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The microstructure of commercially pure titanium subjected to uniaxial compression was meticulously analyzed using electron backscattered diffraction (EBSD) to investigate the variant activation behavior of {11-22} twins and {10-12} twins. The results reveal that the type and number of activated twin variants are strongly dependent on the loading direction-whether applied along the normal direction (ND) or the rolling direction (RD). Notably, loading along ND can activate up to five twin variants, and most are activated with low Schmid Factor (SF) rank but high SF value. The variation in the number of activated twin variants within a grain is influenced by factors such as grain size, the activation stress of twinning versus slip, and the orientation of the loading direction relative to the c-axis. SF value for two twinning systems ({11-22} twins and {10-12} twins) were systematically calculated in pure titanium as a function of the angle between the c-axis and the loading direction, which indicates that compression along a direction closely aligned with the c-axis has the potential to activate up to six variants of {11-22} twins simultaneously. In contrast, compression perpendicular to the c-axis tends to activate fewer {10-12} twin variants, with the twinning activation being highly sensitive to the degree of c-axis rotation.
Keyword ：
EBSD EBSD Multiple-variants Multiple-variants Pure titanium Pure titanium Strain compatibility Strain compatibility Twinning Twinning
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| GB/T 7714 | Chen, Jingxian , An, Qiaojuan , Deng, Liping et al. Activation mechanism of multiple twin variants during uniaxial compression in pure titanium [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2025 , 1024 . |
| MLA | Chen, Jingxian et al. "Activation mechanism of multiple twin variants during uniaxial compression in pure titanium" . | JOURNAL OF ALLOYS AND COMPOUNDS 1024 (2025) . |
| APA | Chen, Jingxian , An, Qiaojuan , Deng, Liping , Ye, Peng , Wang, Chen , Chen, Junfeng et al. Activation mechanism of multiple twin variants during uniaxial compression in pure titanium . | JOURNAL OF ALLOYS AND COMPOUNDS , 2025 , 1024 . |
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The development of efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) is essential for the realization of effective hydrogen production via seawater electrolysis. Herein, the study has developed a simple method that combines electrospinning with subsequent thermal shock technology to effectively disperse ruthenium nanoparticles onto highly conductive titanium carbide nanofibers (Ru@TiC). The electronic metal-support interactions (EMSI) resulted from charge redistribution at the interface between the Ru nanoparticles and the TiC support can optimize hydrogen desorption kinetics of Ru sites and induce the hydrogen spillover phenomenon, thereby improving hydrogen evolution. As a result, the Ru@TiC catalyst exhibits outstanding HER activity, requiring low overpotentials of only 65 mV in alkaline seawater at the current density of 100 mA cm-2. Meanwhile, Ru@TiC demonstrates excellent stability, maintaining consistent operation at 500 mA cm(-2) for at least 250 hours. Additionally, an anion exchange membrane electrolyzer incorporating Ru@TiC operated continuously for over 500 hours at 200 mA cm-2 in alkaline seawater. This study highlights the significant potential of robust TiC supports in the fabrication of efficient and enduring electrocatalysts that enhance hydrogen production in complex seawater environments.
Keyword ：
alkaline seawater electrolysis alkaline seawater electrolysis desorption kinetics desorption kinetics electronic metal-support interactions electronic metal-support interactions ruthenium nanoparticles ruthenium nanoparticles titanium carbide nanofibers titanium carbide nanofibers
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| GB/T 7714 | Sun, Junwei , Wang, Zhichao , Wang, Yue et al. Modulation of Hydrogen Desorption Capability of Ruthenium Nanoparticles via Electronic Metal-Support Interactions for Enhanced Hydrogen Production in Alkaline Seawater [J]. | SMALL , 2025 , 21 (15) . |
| MLA | Sun, Junwei et al. "Modulation of Hydrogen Desorption Capability of Ruthenium Nanoparticles via Electronic Metal-Support Interactions for Enhanced Hydrogen Production in Alkaline Seawater" . | SMALL 21 . 15 (2025) . |
| APA | Sun, Junwei , Wang, Zhichao , Wang, Yue , Song, Yanyan , Pei, Yi , Yan, Wensheng et al. Modulation of Hydrogen Desorption Capability of Ruthenium Nanoparticles via Electronic Metal-Support Interactions for Enhanced Hydrogen Production in Alkaline Seawater . | SMALL , 2025 , 21 (15) . |
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The near-alpha Ti60 alloy, renowned for its exceptional high-temperature performance, is highly sought after for aerospace applications. This study optimized the laser powder bed fusion (LPBF) parameters to fabricate Ti60 alloy with a density approaching 99.84 %. The rapid solidification process inherent to LPBF results in an ultrafine martensitic microstructure within the Ti60 alloy, characterized by the presence of intricate alpha ' martensite laths within the (3 columnar grains. The alloy's crystallographic structure is distinguished by a high density of dislocations and twins, which significantly augment its mechanical properties at both ambient and elevated temperatures. At room temperature, the alloy exhibits a tensile strength of 1402 MPa coupled with a elongation of 12.3 %. At 600 degrees C, these values increase to 686 MPa and 25.6 % elongation, respectively. These findings have the potential to significantly advance the application of LPBF-ed Ti60 alloy in the aerospace sector, while also offering a pivotal reference for the additive manufacturing of other high-performance titanium alloys.
Keyword ：
Laser powder bed fusion Laser powder bed fusion Mechanical properties Mechanical properties Microstructure Microstructure Ti60 alloy Ti60 alloy
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| GB/T 7714 | Chi, Shan , Zhu, Rongtao , Du, Peng et al. Enhanced mechanical properties of near-α Ti60 alloy by laser powder bed fusion [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2025 , 35 : 3968-3979 . |
| MLA | Chi, Shan et al. "Enhanced mechanical properties of near-α Ti60 alloy by laser powder bed fusion" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 35 (2025) : 3968-3979 . |
| APA | Chi, Shan , Zhu, Rongtao , Du, Peng , Yuan, Bo , Peng, Can , Zhang, Liang et al. Enhanced mechanical properties of near-α Ti60 alloy by laser powder bed fusion . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2025 , 35 , 3968-3979 . |
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In order to achieve in-situ growth of layered double hydroxides (LDH) film on plasma electrolytic oxidation (PEO) coating of AZ31B magnesium alloy under mild conditions, a facile method was used in this work, that is ethylenediaminetetraacetic acid (EDTA)-assisted growth method. Compared to the conventional hydrothermal method, the fabrication of LDH/PEO composite coating by this method does not require a high temperature and high pressure environment and is not constrained by the size of the reactor. Furthermore, the obtained LDH/PEO composite coating exhibits enhanced corrosion protection, which will be widely applied in corrosion protection field of surface engineering. In this work, an effective strategy to control the dissolution of PEO coating and the growth of LDH film by regulating the concentration of EDTA was proposed, after revealing the growth behavior of LDH on PEO coating during this facile fabrication process. The growth behavior of LDH film can be briefly summarized in three stages: PEO coating dissolution, LDH nucleation, and LDH growth. Interestingly, the growth mechanism of LDH was changed with EDTA assistance. LDH shifted from preferential growth within the micropores of the PEO coating to uniform growth. With the assistance of 0.06 M EDTA, which is optimal, the dissolution of original PEO coating provided a stable and sufficient Mg source for the growth of LDH film, resulting in a dense LDH network structure on the PEO coating. This uniformly grown LDH film could not only seal the inherent defects of the PEO coating but also exhibited the ability to adsorb corrosive anions, which increases the tortuosity and difficulty in penetration of corrosive media, significantly improving the corrosion resistance of the LDH/PEO composite coating.
Keyword ：
AZ31B Mg alloy AZ31B Mg alloy Coating growth mechanism Coating growth mechanism Corrosion protection Corrosion protection EDTA EDTA Layered double hydroxides Layered double hydroxides Plasma electrolytic oxidation Plasma electrolytic oxidation
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| GB/T 7714 | Qiu, Wenyi , Ye, Xinglong , Liu, Yan et al. Study on a facile method of in-situ fabricating enhanced corrosion protection LDH/PEO composites coating on Mg alloy and its growth behavior [J]. | SURFACE & COATINGS TECHNOLOGY , 2025 , 500 . |
| MLA | Qiu, Wenyi et al. "Study on a facile method of in-situ fabricating enhanced corrosion protection LDH/PEO composites coating on Mg alloy and its growth behavior" . | SURFACE & COATINGS TECHNOLOGY 500 (2025) . |
| APA | Qiu, Wenyi , Ye, Xinglong , Liu, Yan , Lin, Bin , Chen, Junfeng , Xiao, Lei et al. Study on a facile method of in-situ fabricating enhanced corrosion protection LDH/PEO composites coating on Mg alloy and its growth behavior . | SURFACE & COATINGS TECHNOLOGY , 2025 , 500 . |
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随着人工智能技术的不断发展和普及，知识图谱作为一种新兴的知识表示和推理技术，逐渐成为教育领域的研究热点。以材料专业为例，针对目前材料类实验课程教学中存在的问题，将知识图谱引入实验教学，探讨了知识图谱在实验教学中的应用，提出了一种基于知识图谱的实验课程建设模式。通过将知识图谱技术应用于实验教学，实现了对学生的系统化、个性化、创新性教学。
Keyword ：
人工智能 人工智能 实验教学 实验教学 材料专业 材料专业 知识图谱 知识图谱
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| GB/T 7714 | 陈玉龙 , 林枞 , 陈俊锋 . 基于知识图谱的材料类实验课程建设 [J]. | 中国现代教育装备 , 2025 , PageCount-页数: 3 (09) : 9-11 . |
| MLA | 陈玉龙 et al. "基于知识图谱的材料类实验课程建设" . | 中国现代教育装备 PageCount-页数: 3 . 09 (2025) : 9-11 . |
| APA | 陈玉龙 , 林枞 , 陈俊锋 . 基于知识图谱的材料类实验课程建设 . | 中国现代教育装备 , 2025 , PageCount-页数: 3 (09) , 9-11 . |
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As a representative third-generation Al-Li alloy, 2A97 alloy has attracted significant attention for applications in aeronautics and astronautics, but its poor hot workability and complex thermal deformation behavior, which make for difficult optimization, significantly limit its widespread industrial utilization. In this study, the thermal deformation behavior of 2A97 Al-Li alloy was systematically investigated via thermal compression tests conducted over a temperature range of 260-460 degrees C and strain rates ranging from 0.001 s-1 to 1 s-1. The effects of deformation parameters on the alloy's microstructural evolution were examined using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). Based on the dynamic materials model, a constitutive equation was established by analyzing the stress-strain data under various thermal deformation conditions. Furthermore, a thermal processing map was compiled to analyze the effects of the temperature and strain rate on the power dissipation efficiency and flow instability factor. The thermal deformation mechanisms were identified through combined analysis of the thermal processing map and microstructural features. Results indicate that the fraction of low-angle grain boundaries increases with a rising lnZ value (Zener-Hollomon parameter) during the thermal compression process. Dynamic recrystallization is the main deformation mechanism of 2A97 Al-Li alloy in the stable region, whereas the alloy exhibits flow localization in the unstable region. According to the thermal processing map, the optimal hot working windows for the 2A97 Al-Li alloy were determined to be (1) 360-460 degrees C at strain rates of 0.05 s-1-1 s-1, and (2) 340-420 degrees C at strain rates of 0.001 s-1-0.005 s-1. These conditions offer favorable combinations of microstructure and deformation stability, providing critical guidance for the thermo-mechanical processing of 2A97 alloy.
Keyword ：
constitutive equation constitutive equation dynamic recrystallization dynamic recrystallization processing stability processing stability thermal deformation thermal deformation thermal processing map thermal processing map
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| GB/T 7714 | Chen, Daoqi , Han, Xinyang , Zhang, Yinggan et al. Study on Thermal Deformation Behavior and Thermal Processing Map of a New Al-Li Alloy [J]. | CRYSTALS , 2025 , 15 (5) . |
| MLA | Chen, Daoqi et al. "Study on Thermal Deformation Behavior and Thermal Processing Map of a New Al-Li Alloy" . | CRYSTALS 15 . 5 (2025) . |
| APA | Chen, Daoqi , Han, Xinyang , Zhang, Yinggan , Liu, Yan , Chen, Junfeng . Study on Thermal Deformation Behavior and Thermal Processing Map of a New Al-Li Alloy . | CRYSTALS , 2025 , 15 (5) . |
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Through the surface modification of graphene nanoparticles (GNPs) by ethyl cellulose (EC), combined with solution ultrasonic dispersion and wet ball milling, GNPs and aluminum matrix were uniformly mixed and GNPs damage was suppressed. Then, highly wear-resistant GNPs/AlSi10Mg composites were prepared by the suppression of interfacial reaction through rapid sintering with discharge plasma. The microstructure and wear-resistant properties of GNPs/AlSi10Mg composites were characterized and analyzed by scanning electron microscope, transmission electron microscope and friction testing machine. The results show that moderate addition of GNPs can effectively improve the mechanical properties of the composites. When the addition amount of GNPs is 0.5wt%, the wear rate and coefficient of friction of the composites are the lowest, which are 7.8×10-4 mm3/(N·m) and 0.417, respectively. The wear rate is reduced by 28.4% compared with that of the matrix material (10.9×10-4 mm3·N-1·m-1). The wear mechanism of GNPs/AlSi10Mg composites is mainly abrasive wear, accompanied by slight oxidative wear and adhesive wear. During the friction process, when the composite specimen is in contact with the dyad, GNPs emerge on the surface to form a thin film under the action of shear force, which can be used as a lubricant to reduce the contact point between the dyad and the matrix, preventing excessive spalling and delamination and thereby protecting the matrix. © 2025 Science Press. All rights reserved.
Keyword ：
Ball milling Ball milling High resolution transmission electron microscopy High resolution transmission electron microscopy Metallic matrix composites Metallic matrix composites Sintering Sintering Spalling Spalling Ultrasonic applications Ultrasonic applications Ultrasonic dispersion Ultrasonic dispersion Wear of materials Wear of materials
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| GB/T 7714 | Yang, Yan , Han, Xinyang , Qiu, Yuxiao et al. Preparation and Wear-Resistant Mechanism of Highly Wear-Resistant GNPs/AlSi10Mg Composites [J]. | Rare Metal Materials and Engineering , 2025 , 54 (4) : 952-963 . |
| MLA | Yang, Yan et al. "Preparation and Wear-Resistant Mechanism of Highly Wear-Resistant GNPs/AlSi10Mg Composites" . | Rare Metal Materials and Engineering 54 . 4 (2025) : 952-963 . |
| APA | Yang, Yan , Han, Xinyang , Qiu, Yuxiao , Lin, Bin , Chen, Junfeng , Chen, Yulong et al. Preparation and Wear-Resistant Mechanism of Highly Wear-Resistant GNPs/AlSi10Mg Composites . | Rare Metal Materials and Engineering , 2025 , 54 (4) , 952-963 . |
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In order to improve the mechanical properties and corrosion resistance of 2A97 aluminum -lithium alloy, this research develops a novel strain heat -treatment technology. Surprisingly, 2A97 alloy treated by 4% pre -strain and 48 h deep cryogenic aging exhibits excellent mechanical properties, whose yield strength, tensile strength, and elongation are 573.7 MPa, 593.6 MPa, and 14.25%, respectively. Furthermore, the corrosion resistance of samples treated by the above pre -strain deep cryogenic aging process is two times as much as traditional T6 aged. This study deeply investigates the influence of various precipitates in 2A97 alloy on its performance through microstructure analysis. The results show that the introduction of pre -strain inhibits the precipitates of the T 1 and 8 ' phases at the grain boundaries, and prevents the formation and widening of precipitate -free zones. At the same time, it reduces the potential difference between grain boundaries and matrix, and enhances the corrosion resistance of 2A97 alloy. Deep cryogenic can inhibit recovery and maintain deformation dislocation, so that a large number of defects produced by pre -strain promote the nucleation and diffusion of precipitates in the matrix, resulting in tiny and uniformly distributed precipitates. Therefore, the novel prestrain deep cryogenic aging not only endues 2A97 alloy excellent performance, but also offers a new strategy for controlling precipitation.
Keyword ：
Corrosion property Corrosion property Mechanical property Mechanical property Precipitate Precipitate Pre -strain deep cryogenic aging Pre -strain deep cryogenic aging
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| GB/T 7714 | Liu, Yan , Zhao, Chenxu , Chen, Junfeng et al. Effects of pre-strain deep cryogenic aging on the mechanical and corrosion properties of 2A97 aluminum-lithium alloy [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 30 : 2728-2737 . |
| MLA | Liu, Yan et al. "Effects of pre-strain deep cryogenic aging on the mechanical and corrosion properties of 2A97 aluminum-lithium alloy" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 30 (2024) : 2728-2737 . |
| APA | Liu, Yan , Zhao, Chenxu , Chen, Junfeng , Liu, Rongying , Jiang, Jiantang , Cui, Xiping et al. Effects of pre-strain deep cryogenic aging on the mechanical and corrosion properties of 2A97 aluminum-lithium alloy . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 30 , 2728-2737 . |
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The tension-compression yield asymmetry caused by the strengthening of Mg-Zn-Gd-Zr alloy due to extrusion deformation is an important issue that must be addressed in its application. In this study, the effects of loading direction on the tensile and compressive mechanical behaviors of Mg-5Zn-2Gd-0.2Zr alloy were systematically investigated. As the loading angle (the angle between the loading direction and the extrusion direction) increases from 0 degrees to 30 degrees, 45 degrees, 60 degrees and 90 degrees, the tensile yield strength decreases more significantly than the compressive yield strength. Consequently, the tension-compression yield asymmetry is gradually improved. Additionally, the ultimate compressive strength decreases more markedly than the ultimate tensile strength with the increment of the loading angle. In tensile tests conducted at 0 degrees, 30 degrees and 45 degrees, two distinct stages of decreasing strain hardening rates are typically observed. For the 60 degrees and 90 degrees tensile tests, one unusual ascending stage of strain hardening rate is observed. For all compressive tests, three stages of strain hardening are consistently noted; however, the increment in strain hardening rate caused by {10-12} extension twinning decreases with the increasing loading angle. A model combining loading angle and Schmid factor distribution was established. The calculated results indicate that the dominant deformation modes during the yielding process also vary significantly with the loading conditions. This clarification highlights the differences in yield strength variations between tension and compression. Finally, an analysis of the plane trace and crack propagation direction near the fracture surface reveals the fracture mechanisms associated with tensile and compressive tests at different loading directions. This study promotes understanding of the mechanical behaviors of Mg-5Zn-2Gd-0.2Zr alloy under different loading directions, and helps to thoroughly elucidate the anisotropic effects of texture on the mechanical properties of magnesium alloys.
Keyword ：
fracture mechanism fracture mechanism heterogeneous grains heterogeneous grains magnesium alloy magnesium alloy strain hardening strain hardening tensile and compressive strength tensile and compressive strength
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| GB/T 7714 | Chen, Jieming , Xiao, Lei , Wang, Xuefang et al. Effect of Loading Direction on Tensile-Compressive Mechanical Behaviors of Mg-5Zn-2Gd-0.2Zr Alloy with Heterogeneous Grains [J]. | CRYSTALS , 2024 , 14 (10) . |
| MLA | Chen, Jieming et al. "Effect of Loading Direction on Tensile-Compressive Mechanical Behaviors of Mg-5Zn-2Gd-0.2Zr Alloy with Heterogeneous Grains" . | CRYSTALS 14 . 10 (2024) . |
| APA | Chen, Jieming , Xiao, Lei , Wang, Xuefang , Li, Zhuo , Wang, Chen , Wang, Bingshu et al. Effect of Loading Direction on Tensile-Compressive Mechanical Behaviors of Mg-5Zn-2Gd-0.2Zr Alloy with Heterogeneous Grains . | CRYSTALS , 2024 , 14 (10) . |
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