Article
Engineering, Manufacturing
Zhiming Zhang, Zan Li, Zhanqiu Tan, Haitao Zhao, Genlian Fan, Yanjin Xu, Ding-bang Xiong, Zhiqiang Li
Summary: Inspired by the design principle of nacre, a bottom-up strategy was employed in the fabrication of bioinspired laminated composites with a brick-and-mortar structure. The composites achieved a significant enhancement in strength with a slight compromise on ductility, leading to improved toughness compared to the corresponding Al matrix.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Chemistry, Physical
Hossein Ziaei, Farhad Saba, Qibing Liu, Genlian Fan, Zhanqiu Tan, Dingbang Xiong, Xiaohui Zhang, Baishan Liu, Zhiqiang Li
Summary: To solve the ductility-strength dilemma, the junction coincidence of intragranular reinforcement dispersion and in-situ reaction was used to increase the content of nano dispersoids in metal matrix composite for enhanced dispersion strengthening effect. The in-situ reaction between ex-situ CNTs, in-situ Al2O3, and the Al matrix was regulated to form a higher volume fraction of Al4O4C and Al4C3 nano dispersoids in Al grain interiors. The proliferation strategy of intragranular nano dispersoids greatly enhanced the dispersion strengthening and work hardening capability in ultrafine Al grains and resulted in a better combination of strength, Young's modulus, and ductility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Recep Ekici, Ertan Kosedag, Mert Demir
Summary: This study experimentally investigated the behavior of SiC reinforced aluminum 6061 metal-matrix composites under repeated low-velocity impacts. The results showed that the composites exhibited a tougher behavior with an increase in the impact numbers, especially due to the strain hardening effect. Furthermore, an increase in volume fraction resulted in an increase in impact strength under both repeated and single impacts.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Chao Yuan, Zhiming Zhang, Zhanqiu Tan, Lang Xu, Shuyan Zhang, Genlian Fan, Peng Zhang, Zhiqiang Li
Summary: The addition of magnesium was proposed to mitigate the negative effects of the native oxide layer in CNT/Al-Cu composites, resulting in significant improvement in ductility. The transformation of the oxide layer to spinel MgAl2O4 nano-phases by magnesium addition improved interfacial bonding, leading to a nearly twofold increase in fracture ductility in the final composites compared to CNT/Al-Cu composites.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
S. Senthil Kumar, T. S. Senthilkumar, P. Pitchipoo, Yagya Dutta Dwivedi, N. Nagaprasad, Kuldeep K. Saxena, S. Rathinavel, Sayed M. Eldin, Krishnaraj Ramaswamy
Summary: The incorporation of MoS2 particles in Al-4% Mg material increases density and microhardness. The composite with 4% Mg and 6% MoS2 shows the highest percentage increase in density (8.04%) and microhardness (33%) compared to pure Aluminium. Adding MoS2 particles reduces wear loss in the Al-Mg alloy, with a decrease of 16.03% in composite with 4% Mg and 6% MoS2. SEM analysis shows that composites with higher MoS2 content exhibit smoother worn surfaces.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Multidisciplinary
Tielong Han, Fucheng Wang, Jiajun Li, Naiqin Zhao, Chunnian He
Summary: This study successfully dispersed nano-sized graphene nanoplates with high-content in the matrix uniformly by a modified ball milling strategy, which led to the simultaneous enhancement of strength and uniform elongation of the composites.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Composites
Fei Lin, Mengyuan Ren, Fanghui Jia, Mingshuai Huo, Ming Yang, Zhixin Chen, Zhengyi Jiang
Summary: Heterostructured Al/10 vol% (TiC-GNPs) composites were produced by powder metallurgy (PM) with varying TiC-to-GNPs volume ratios. The dispersion of TiC in the matrix improved and the heterostructure of the composite was optimized as the TiC-to-GNPs ratio decreased. The compressive properties of the composite were significantly improved, achieving a balance between increased strength and retained ductility. However, the compressive properties decreased dramatically when the GNPs content reached 2 vol% due to the presence of GNPs agglomerates.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Chemical
C. Yang, J. C. Wang, L. M. Kang, T. Chen, W. W. Zhang, L. H. Liu, Y. Y. Li
Summary: A novel powder metallurgy strategy has been developed to overcome the room-temperature brittleness of pressureless sintered titanium matrix composites by evading Kirkendall's pores. By coating nanosized TiB2 powder with stearic acid and reactive sintering with micron-sized TiH2 powder, TiBw/Ti composites with nearly full density and low porosity have been prepared, exhibiting large tensile plasticity and high strength comparable to or even superior to some ceramic phase-reinforced pure Ti matrix composites.
Article
Chemistry, Physical
A. W. Zhao, X. Luo, Z. L. Ye, X. Guo, B. Huang, W. J. Lu, P. T. Li, Y. Q. Yang
Summary: Novel CrCoNi-Al2O3 composites were prepared and their microstructure and mechanical properties were systematically investigated. The composites exhibited high hardness and strength, while maintaining a certain level of ductility, indicating composite strengthening as an effective approach to enhance the mechanical properties of high/medium entropy alloys.
Article
Chemistry, Physical
Xinfu Wang, Ying Huang, Tong Xu, Dan Wang, Xianyu Li, Weiguo Wang, Gangling Hao
Summary: Al matrix composites reinforced with Co-based hard particles (M7) were synthesized by powder metallurgy. The effects of sintering temperature, M7 particle content, and particle size on the microstructure and mechanical behavior were investigated. The results showed that higher sintering temperature led to increased interdiffusion reaction, thicker diffusion layer, and in-situ generated intermetallic compounds. The microhardness and yield strength improved with higher sintering temperature, increased M7 particle content, and smaller particle size. The M7/Al composites exhibited higher microhardness and strength compared to SiC/Al composites due to better interfacial wettability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hongtao Geng, Chunxiang Cui, Lu Liu, Yingguang Liang
Summary: The hybrid aluminum matrix composites (HAMCs) have gained significant attention due to the synergy between multiple phases. In this study, in-situ AlN-TiC-TiN-Al3Ti/Al inoculation ribbons were prepared and introduced into the Al-Cu-Mn-Ti matrix alloy, leading to improved mechanical properties and refined grain size. The good distribution of nano-particles and the interface matching relationship contribute to the enhanced properties, along with multiple strengthening mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Multidisciplinary
Hongyun He, Genlian Fan, Farhad Saba, Zhanqiu Tan, Zhu Su, Dingbang Xiong, Zhiqiang Li
Summary: Achieving a uniform dispersion and high efficiency in metal matrix nanocomposites with a high-content of nano-reinforcements is challenging. Flake dispersion, a process combining flake powder metallurgy with high-shear dispersion, can be used to address this issue. By using flake Al powders coated with a high content of SiC nanoparticles, the resulting nanocomposites showed a uniform distribution of nanoparticles and improved mechanical properties.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Physical
Neeraj Kumar, Ashutosh Sharma, Manoranjan Kumar Manoj
Summary: This study investigates the corrosion behavior of boron carbide reinforced Al-Mg-Si matrix composites in different aqueous environments. The results show that the composites exhibit the highest corrosion resistance in NaCl medium, and a protective barrier layer is formed.
Article
Materials Science, Multidisciplinary
Nan Li, Fengguo Zhang, Qing Yang, Yi Wu, Mingliang Wang, Jun Liu, Lei Wang, Zhe Chen, Haowei Wang
Summary: In this study, a uniform distribution of nanosized TiB2 particles in the metal matrix was achieved using powder metallurgy with pre-embedded particles. The concentrated shear stress around the uniformly distributed TiB2 particles led to grain fragmentation and refinement during hot extrusion. The T4-treated TiB2/2024 composites showed improved mechanical properties compared to other alloys and composites.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Saud M. Almotairy, A. Fadavi Boostani, M. Hassani, D. Wei, Z. Y. Jiang
Summary: This study discusses the beneficial effect of thixoforming process on improving the tensile properties of aluminium matrix composite produced using flake metallurgy route. Microstructural studies show the synergic effect of thixoforming process in achieving uniform distribution of SiC nanoparticles, while X-ray diffraction characterizations reveal the promising effect of SiC nanoparticles on restricting grain growth within nanoscale regime. Tensile tests demonstrate that samples prepared using dual speed ball milling flake metallurgy have superior properties compared to those prepared using other methods.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Yuhang Du, Deyu Ding, Limin Lai, Siming Xiao, Ning Guo, Bo Song, Shengfeng Guo
Summary: The addition of reactive element Y can significantly improve the high-temperature oxidation resistance of CrMoTaTi high-entropy alloys, lowering the critical concentration of Cr required for the formation of Cr2O3 on the alloy surface. The Y-bearing RHEAs exhibited good oxidation resistance even when subjected to oxidation at 1000 degrees C for 100 hours, suggesting a positive role of reactive elements in enhancing the oxidation resistance of RHEAs.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Materials Science, Ceramics
Meifang Tang, Limin Lai, Deyu Ding, Tianhao Liu, Weizhi Kang, Ning Guo, Bo Song, Shengfeng Guo
Summary: Amorphous alloys have shown excellent catalytic performance in the degradation of azo dye wastewater, but high degradation efficiency and reusability have been unsatisfactory for a long time. In this study, a new Co-Mo-B amorphous alloy wire was reported, which exhibited rapid degradation and excellent reusability. These findings provide a new idea for the development of amorphous alloys in the degradation of azo dye wastewater.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Bo Song, Meng Wang, Ruolan Shi, Zhiwen Du, Ning Guo, Fang Wang, Shengfeng Guo
Summary: In this study, a rolled AZ31 bar with c-axis//ND texture was treated by side-rolling and reciprocating torsion. The microstructure and tensile-compressive properties were investigated. The initial rolled bar exhibits yield asymmetry along the rolling direction. Reciprocating torsion can introduce twin boundaries and twin-texture, reducing the yield asymmetry. Pre-side-rolling generates dual texture components and increases the regions favorable for twinning during torsion. Combining side-rolling and reciprocating torsion results in a hybrid twin structure and remarkably low yield asymmetry.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Psychology, Clinical
Nana Guo, Anselm B. M. Fuermaier, Janneke Koerts, Oliver Tucha, Norbert Scherbaum, Bernhard W. Mueller
Summary: This study used network analysis to explore the relationship between neuropsychological functions of individuals with and without ADHD. The results showed that individuals with ADHD exhibited a denser network with stronger global connectivity. The connections between attention and processing speed, among others, were the strongest in both networks, suggesting their high centrality.
Article
Metallurgy & Metallurgical Engineering
Fujian Zhang, Huayong Hu, Jianjun Hu, Xian Yang, Min Li, Yanxia Chen, Chaoping Ma, Ning Guo
Summary: The microstructural evolution and common defects of Cu-Ag (0.075 wt.%) alloy during continuous extrusion molding were characterized and analyzed using various techniques. Despite the high temperature of the cavity, both deformation and recrystallization structures were observed due to the high extrusion rate. The friction forces on the upper and lower surfaces of the Cu-Ag bar were different, resulting in shear stress and a slight difference in grain size between the upper and lower layers of the extruded wires.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Chemistry, Physical
Hongju Zhang, Yuhang Du, Limin Lai, Ning Guo, Ning Li, Shengfeng Guo
Summary: This study systematically investigates the room-temperature mechanical properties and high-temperature oxidation resistance of AlxCrTaTi RMEAs. The results show that AlxCrTaTi RMEAs possess high yield strength and plasticity, and the Al0.25CrTaTi alloy exhibits good oxidation resistance at high temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Shijun Tan, Bo Song, Hongbing Chen, Xiaodong Tan, Risheng Qiu, Tingting Liu, Ning Guo, Shengfeng Guo
Summary: This study investigates the effects of free-end torsion on the microstructure and tensile property of low-carbon steel. Severe torsion deformation results in exceptionally high yield strength in low-carbon steels. This high hardening effect is mainly due to lattice distortion, high dislocation density, and grain shape change. Torsion deformation also introduces a gradient deformation structure, leading to increased strain hardening capacity and maintained plasticity/toughness. Increasing torsion angle enhances uniform elongation and peak strength. After twisting 2800 deg., the yield strength and peak strength can achieve 524 MPa and 675 MPa, respectively, with good tensile elongations (epsilon(f) = 9.6%, epsilon(u) = 7.4%) remaining.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Zhihao Li, Linjiang Chai, Lan Qi, Yueyuan Wang, Yuanzhuo Liu, Tao Yang, Hao Wang, Ning Guo, Yuxiang Zhao
Summary: In this study, two Al-Cr-Ti ternary alloy coatings were fabricated on a Ti-4Al-2V alloy substrate using a pulsed laser cladding method. The microstructure characteristics of the coatings were revealed using various characterization methods, with their hardnesses and wear rates measured. The results showed that the coatings had a body-centered cubic phase related to non-equilibrium solidification and sluggish diffusion of alloying elements. The enhanced performance of the coatings was attributed to joint strengthening from strong solid solution and lattice distortion, as well as phase structure differences from the substrate induced by Al/Cr.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yixiang Liu, Hao Wang, Yinglong Zhao, Xiang Hou, Xiaoli Wang, Huijie Xia, Bo Song, Linjiang Chai, Ning Guo, Shengfeng Guo
Summary: A precipitation hardening steel was twisted at different temperatures and characterized using X-ray diffraction, electron channeling contrast imaging, and electron backscatter diffraction techniques. At room temperature, the samples showed higher deformation resistance but lower ductility, with a gradient distribution of dislocation density. Phase transformation did not occur during torsion. At higher temperatures, the samples exhibited lower yield strength but higher ductility, with a gentle decrease in ductility and deformation resistance with increasing temperature. Martensite transformed to austenite during hot torsion at temperatures above 300°C. Torsion promoted the formation of reversed austenite under heating conditions.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Jing Shen, Linjiang Chai, Hao Wang, Chuanmei Wang, Qian Yuan, Ning Guo, Jun Xiao, Xing Yin
Summary: Two oxide-reinforced FeCrAl matrix composite coatings, FeCrAl-Al2O3 and FeCrAl-Y2O3, were fabricated on a ferritic-martensitic steel, with distinct microstructure features in their cross-sections. The coatings exhibited higher surface hardness and improved wear resistance compared to the substrate. The enhanced wear resistance was mainly attributed to the high hardnesses produced by their specific microstructural features and the easier formation of surface oxide films during wear.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xiaodong Tan, Wenjun Lu, Ning Guo, Bo Song, Xi Rao, Yunbo Xu, Shengfeng Guo
Summary: We performed a direct quenching and dynamical partitioning process on a low-carbon low-alloy steel. By investigating the effect of tempering and partitioning treatment, we found that carbon partition upon tempering enhances the mechanical stability of retained austenite and promotes the TRIP effect to occur at higher true strain level. Additionally, the presence of carbon-enriched stable retained austenite after necking enhances the post necking elongation of the steel.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Lin Deng, Jin-ru Luo, Jian Tu, Rong Hu, Ning Guo, Wen-yu Zeng, Chang-hao Wang, Pei He, Yong Zhang
Summary: As a candidate material for fuel cladding in fission reactors, the mechanical properties of ODS-F/M steel were improved by incorporating ultra-high number density of Y2O3 oxide nanoparticles through the addition of Y2O3 during HIP and optimizing microstructure and properties through hot rolling deformation. The addition of Y2O3 resulted in a bimodal ferrite structure and reticular M23C6 carbides distribution. Following hot rolling, grain size and M23C6 carbides were refined significantly while Y2O3 particle size remained unchanged. This resulted in an excellent combination of strength (1474 MPa) and ductility (13%) in ODS steel prepared by HIP with Y2O3 addition and hot rolling.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Coatings & Films
Qian Yuan, Linjiang Chai, Tao Yang, Hao Wang, Jing Shen, Ning Guo, Xing Yin, Jun Xiao
Summary: In this study, laser cladding was employed to coat the surface of a ferritic/martensite steel with FeCrAl metallic and FeCrAl/TiC composite coatings. The addition of TiC effectively refined the grain size and transformed the morphology of the coating. The wear resistance of the FeCrAl/TiC composite coating was considerably improved compared to the FeCrAl metallic coating.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ming Yuan, Chao He, Zhihua Dong, Bin Jiang, Bo Song, Ning Guo, Tingting Liu, Shengfeng Guo, Fusheng Pan
Summary: The effect of Sm addition on the microstructure and tensile properties of as-extruded Mg-xSm-0.4Zr (x = 1, 2, 3, 4 wt.%) alloys was investigated. The addition of Sm resulted in refined grain size, weakened texture, and enhanced strength and ductility of the as-extruded alloy. The Mg-3Sm-0.4Zr alloy displayed a good balance of strength and ductility, exhibiting various yield strengths, ultimate tensile strengths, and strains in different orientations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Hao Wang, Jun Xiao, Linjiang Chai, Zhao Shen, Xin Yin, Ke Zhao, Ning Guo, Baojun Yu, Xiaoqin Zeng, Shaoyu Qiu
Summary: In this study, the oxide scale formed on a 12Cr ferritic/martensitic steel exposed to an oxygen-saturated lead-bismuth eutectic (LBE) at 550°C for 2000 hours was investigated using multiscale characterization. The results revealed a triplex structure of the oxide scale, and the available space model was further developed based on the observation of the internal layer.
Article
Nanoscience & Nanotechnology
Jie Zhang, Xiaoyang Chen, MingJian Ding, Jiaqiang Chen, Ping Yu
Summary: This study enhances the compositional inhomogeneity of relaxor ferroelectric thin films to improve their dielectric temperature stability. The prepared films exhibit a relatively high dielectric constant and a very low variation ratio of dielectric constant over a wide temperature range.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xiaoyu Chen, Ranran Zhang, Hao Zou, Ling Li, Qiancheng Zhu, Wenming Zhang
Summary: Polyaniline-manganese dioxide composites exhibit high conductivity, long discharge platform, and stable circulation, and the specific capacity is increased by providing additional H+ ions to participate in the reaction.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xutao Huang, Yinping Chen, Jianjun Wang, Gang Lu, Wenxin Wang, Zan Yao, Sixin Zhao, Yujie Liu, Qian Li
Summary: This study aims to establish a novel approach to better understand and predict the behavior of materials with multi-scale lamellar microstructures. High-resolution reconstruction and collaborative characterization methods are used to accurately represent the microstructure. The mechanical properties of pearlite are investigated using crystal plasticity simulation and in-situ scanning electron microscopy tensile testing. The results validate the reliability of the novel strategy.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Cheng Chen, Fanchao Meng, Jun Song
Summary: This study systematically investigated the unfaulting mechanism of single-layer interstitial dislocation loops in irradiated L12-Ni3Al. The unfaulting routes of the loops were uncovered and the symmetry breaking during the unfaulting processes was further elucidated. A continuum model was formulated to analyze the energetics of the loops and predict the unfaulting threshold.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Darshan Bamney, Laurent Capolungo
Summary: This work investigates the formation of adjoining twin pairs (ATPs) at grain boundaries (GBs) in hexagonal close-packed (hcp) metals, focusing on the co-nucleation (CN) of pairs of deformation twins. A continuum defect mechanics model is proposed to study the energetic feasibility of CN of ATPs resulting from GB dislocation dissociation. The model reveals that CN is preferred over the nucleation of a single twin variant for low misorientation angle GBs. Further analysis considering GB character and twin system alignment suggests that CN events could be responsible for ATP formation even at low m' values.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Bing Han, Zhengqian Fu, Guoxiang Zhao, Xuefeng Chen, Genshui Wang, Fangfang Xu
Summary: This study investigates the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition and reveals the evolution of atomic displacement ordering as the cause for the transition behavior changing from sharp to diffuse. The novel semi-ordered configuration results from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which leads to a diffuse AFE-FE transition while maintaining the switching field.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Akib Jabed, Golden Kumar
Summary: This study demonstrates that cryogenic rejuvenation promotes homogeneous-like flow and increases ductility in metallic glass samples. Conversely, annealing has the opposite effect, resulting in a smoother fracture surface.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xin Ji, Yan Chong, Satoshi Emura, Koichi Tsuchiya
Summary: A heterogeneous microstructure in Ti-15Mo-3Al alloy with heterogeneous distributions of Mo element and omega(iso) precipitates has achieved a four-fold increase in tensile ductility without a loss of tensile strength, by blocking the propagation of dislocation channels and preventing the formation of micro-cracks.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Amit Samanta, Prasanna Balaprakash, Sylvie Aubry, Brian K. Lin
Summary: This study proposes a combined large-scale first principles approach with machine learning and materials informatics to quickly explore the chemistry-composition space of advanced high strength steels (AHSS). The distribution of aluminum and manganese atoms in iron is systematically explored using first principles calculations to investigate low stacking fault energy configurations. The use of an automated machine learning tool, DeepHyper, speeds up the computational process. The study provides insights into the distribution of aluminum and manganese atoms in systems containing stacking faults and their effects on the equilibrium distribution.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Guowei Zhou, Yuanzhe Hu, Zizheng Cao, Myoung Gyu Lee, Dayong Li
Summary: In this work, a physics-constrained neural network is used to predict grain-level responses in FCC material by incorporating crystal plasticity theory. The key feature, shear strain rate of slip system, is identified based on crystal plasticity and incorporated into the loss function as physical constitutive equations. The introduction of physics constraints accelerates the convergence of the neural network model and improves prediction accuracy, especially for small-scale datasets. Transfer learning is performed to capture complex in-plane deformation of crystals with any initial orientations, including cyclic loading and arbitrary non-monotonic loading.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Pengfei Yang, Qichang Li, Zhongying Wang, Yuxiao Gao, Wei Jin, Weiping Xiao, Lei Wang, Fusheng Liu, Zexing Wu
Summary: In this study, the HER performance of Ru-based catalysts is significantly improved through the dual-doping strategy. The obtained catalyst exhibits excellent performance in alkaline freshwater and alkaline seawater, and can be stably operated in a self-assembled overall water splitting electrolyzer.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ilias Bikmukhametov, Garritt J. Tucker, Gregory B. Thompson
Summary: Depositing a Ni-1at. % P film can facilitate the formation of multiple quintuple twin junctions, resulting in a five-fold twin structure and a pentagonal pyramid surface topology. The ability to control material structures offers opportunities for creating novel surface topologies, which can be used as arrays of field emitters or textured surfaces.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Zening Yang, Weiwei Sun, Zhengyu Sun, Mutian Zhang, Jin Yu, Yubin Wen
Summary: Multicomponent oxides (MCOs) have wide applications and accurately predicting their thermal expansion remains challenging. This study introduces an innovative attention-based deep learning model, which achieves improved performance by using two self-attention modules and demonstrates adaptability and interpretability.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ze Liu, Cai Chen, Yuanxun Zhou, Lanting Zhang, Hong Wang
Summary: This study attempts to address the gap in cooling rates between thin film deposition and bulk metallic glass (BMG) casting by correlating the glass-forming range (GFR) determined from combinatorial materials chips (CMCs) with the glass-forming ability (GFA) of BMG. The results show that the full-width at half maximum (FWHM) of the first sharp diffraction peak (FSDP) is a good indicator of BMG GFA, and strong positive correlations between FWHM and the critical casting diameter (Dmax) are observed in various BMG systems. Furthermore, the Pearson correlation coefficients suggest possible similarities in the GFA natures of certain BMG pairs.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Mike Schneider, Jean-Philippe Couzinie, Amin Shalabi, Farhad Ibrahimkhel, Alberto Ferrari, Fritz Koermann, Guillaume Laplanche
Summary: This work aims to predict the microstructure of recrystallized medium and high-entropy alloys, particularly the density and thickness of annealing twins. Through experiments and simulations, a database is provided for twin boundary engineering in alloy development. The results also support existing theories and empirical relationships.
SCRIPTA MATERIALIA
(2024)
