Article
Materials Science, Ceramics
Yajie Yu, Shi He, Zhengang Zhang, Haihua Chen, Peipeng Jin, Binnian Zhong, Linhui Zhang, Liping Wang, Cheng Lu
Summary: Silicide ceramics, including tantalum disilicide (TaSi2), are known for their exceptional physical properties but are limited in practical applications due to their inherent brittleness at room temperature. In this study, we successfully improved the mechanical properties of TaSi2 ceramics and increased their electrical conductivity by modifying the preparation methods and sintering conditions. These findings provide valuable insights for future applications of TaSi2 and the design of advanced ceramic materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Engineering, Mechanical
Anthony Moulins, Francois Andrusyszyn, Roberto Dugnani, Ricardo J. Zednik
Summary: The temperature evolution of fracture toughness in single-crystal gallium arsenide (GaAs) on the (001) plane was investigated using Vickers indentation. The results showed a temperature-dependent decrease in hardness and increase in toughness, and revealed the composition and alignment of cleavage planes. The study also found a relationship between temperature and the types of cracks and slip produced.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Materials Science, Ceramics
Hamisah Ismail, Hasmaliza Mohamad
Summary: This study investigated the effects of CaCO3 additive on zirconia-toughened alumina-CeO2-Nb2O5 ceramics, and found that adding 1.0 wt% CaCO3 resulted in excellent Vickers hardness and fracture toughness.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Jiongjie Liu, Emmanuel Ricohermoso, Wei Li, Xingmin Liu, Zhuhui Qiao, Emanuel Ionescu, Ralf Riedel
Summary: In this study, a WC-containing SiOC glass-ceramic was synthesized via pyrolysis and SPS. The sintering behavior, phase composition, and microstructure of the ceramics were investigated. The results showed that increasing the sintering temperature enhanced the densification of the ceramics and reduced the disorder of free carbon in SiOC. Furthermore, the incorporation of WC particles effectively improved the mechanical properties of the ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Wenhao Sha, Yingying Liu, Yabin Zhou, Yihua Huang, Zhengren Huang
Summary: Different reaction-bonded boron carbide composites with varying levels of carbon were prepared and the effect of carbon content on mechanical properties was studied. The results showed that an appropriate addition of free carbon could improve the strength of the composite, while excessive carbon content would decrease the strength.
Article
Materials Science, Ceramics
Alexandre Le Coz, Guillaume R. Durand, Louis Cornet, Nathalie Herbert, Francis Gouttefangeas, Loic Joanny, Fabrice Celarie, Francois Chevire, Odile Merdrignac-Conanec
Summary: Lanthanum oxysulfide (La2O2S) was investigated as a transparent infrared ceramic with stronger chemical bonds and superior mechanical performances than non-oxide infrared materials. The powders prepared by combustion synthesis followed by sulfurization treatment were hot-pressed to form La2O2S ceramics. Various techniques were used to characterize the powders and ceramics and determine their purity, microstructure, optical, and mechanical properties. The study provides the first transmission spectra, Poisson's ratio, Young's and shear moduli, and fracture toughness values of La2O2S polycrystalline ceramics. The ceramics showed transparency in the 2-11 μm range and outperformed commercial infrared ceramics in terms of mechanical performances. The best transmission (89% of theoretical transmission) was achieved at 7.3 μm for 1 mm-thick ceramics hot-pressed at 1200-1250 degrees C.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Metallurgy & Metallurgical Engineering
N. Makuch
Summary: Two-stage gas boriding process in N-2-H-2-BCl3 atmosphere was used to produce a two-zoned borided layer on Nisil-alloy. The outer layer consisted of nickel borides only, while the inner zone contained nickel silicides in addition to nickel borides. The presence of nickel silicides reduced the hardness and elastic modulus of the inner zone borided layer.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Nanoscience & Nanotechnology
Kasturi Sala, Rahul Mitra
Summary: The addition of 20% Ti and 4% Fe to the Nb-12Si-5Mo alloy affects its microstructural evolution, mechanical properties, hardness, fracture toughness, and compressive strength. Annealing leads to changes in microstructure and composition, influencing the alloy's properties. The Ti-containing alloy shows the highest dynamic Young's modulus and indentation fracture toughness, with contributions from bridging and crack arrest by the Nb-ss phase.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Ceramics
Da-Wang Tan, Zhen-Yong Lao, Zhan Zhang, Wei-Ming Guo, Shi-Kuan Sun, Hua-Tay Lin
Summary: The addition of Mo-Co-WC sintering additive in B4C-TiB2 ceramics enhances densification and results in core-rim structured grains. The interface of the rim between TiB2 and B4C phases shows smooth and sharp features, suggesting a mechanism involving solid solution and dissolution-precipitation between TiB2 and the additive.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Yingying Liu, Sheng Ge, Yihua Huang, Zhengren Huang
Summary: B4C-TiB2-SiC composites with W addition were successfully prepared by spark plasma sintering, showing improved fracture toughness and mechanical properties with the introduction of W. The core-shell structure observed in the composites contributes to the deflection of cracks, leading to enhanced fracture toughness and Vickers hardness as the W content increases.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Applied
Zheng Cao, Shengli An, Xiwen Song
Summary: ErxTi0.1Zr0.9-xO2-1.5x ceramics with different Er3+ contents were synthesized, and the influence of Er3+ addition on the phase composition, hardness, toughness, and thermal conductivity was investigated. Results showed that Er3+ addition increased c-ZrO2 content, decreased t-ZrO2 content, and expanded the unit cell volume. The addition of Er3+ increased the hardness of the ceramics but decreased the toughness, while causing a significant decline in thermal conductivity.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Physical
Pei-Hu Gao, Sheng-Cong Zeng, Can Jin, Bo Zhang, Bai-Yang Chen, Zhong Yang, Yong-Chun Guo, Min-Xian Liang, Jian-Ping Li, Quan-Ping Li, Yong-Qing Lu, Lu Jia, Dan Zhao
Summary: The addition of Gd2O3 into ZrO2 was found to enhance the hardness, elastic modulus and fracture toughness of the composite ceramics, while decreasing the thermal conductivity and thermal expansion coefficient.
Article
Materials Science, Ceramics
Jingwei Zhang, Yongnian Guan, Kelun Xia, Guang Jia, Jierong Gu, Zhiyong Yang, Zijun Liu, Xiang Shen
Summary: This paper proposes a general method for enhancing the mechanical strength of chalcogenide glasses by preparing glass-ceramics doped with GaAs crystal and ZnS crystal. The effects of crystal doping on the optical and mechanical properties of the glass-ceramics were studied, and it was found that adding GaAs crystal and ZnS crystal significantly improves the hardness and fracture toughness of the chalcogenide glasses. Furthermore, reducing the crystal size can further improve the infrared transmittance and mechanical properties.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Zhenghong Dai, Meaghan C. Doyle, Xing Liu, Mingyu Hu, Qizhong Wang, Christos E. Athanasiou, Yucheng Liu, Brian W. Sheldon, Huajian Gao, Shengzhong (Frank) Liu, Nitin P. Padture
Summary: In this study, the mechanical properties, including elasticity, plasticity, fracture, and creep, relevant to the mechanical reliability of perovskite solar cells (PSCs), were systematically investigated. High-quality single-crystals of commonly studied metal-halide perovskites (MHPs) were fabricated and studied. The results provide important parameters for future mechanical behavior and reliability analysis of MHPs and PSCs.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
George S. Manyali
Summary: This paper investigated hcp Re in terms of its structural, elastic, mechanical, and thermodynamic properties using density-functional theory (DFT). The results showed that Re has a high bulk modulus but low Vicker's hardness, making it a typical solid with specific properties.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Manufacturing
Jiqiang Wang, Yanquan Geng, Zihan Li, Yongda Yan, Xichun Luo, Pengfei Fan
Summary: Ultrasonic vibration-assisted nanomachining on hard-brittle silicon crystal leads to larger subsurface damage compared with static scratching. The study demonstrates that the material becomes significantly harder than the pristine material after plastic deformation during the machining process. This research is important for guiding ultrasonic vibration-assisted machining of hard-brittle materials at the nanoscale level.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Analytical
Fei Ding, Xichun Luo, Duo Li, Zheng Qiao, Bo Wang
Summary: A deterministic controller design approach is adopted in this paper to minimize positioning errors of a fast-actuation cutting system. The influences of mechanical parameters on positioning stability are also revealed.
Article
Chemistry, Analytical
Pengfei Fan, Jian Gao, Hui Mao, Yanquan Geng, Yongda Yan, Yuzhang Wang, Saurav Goel, Xichun Luo
Summary: This article presents the mechanism, current research, and application characteristics of scanning probe lithography (SPL) nanofabrication technique, and analyzes the effects of thermal, chemical, electric, and magnetic fields on this technology. The article also compares different fabrication capabilities, throughput, and attainable resolution, and points out that SPL has yet to achieve its full commercial potential.
Review
Engineering, Manufacturing
Jian Gao, Xichun Luo, Fengzhou Fang, Jining Sun
Summary: This paper discusses the theoretical boundary of ACSM, the physical mechanisms of atomic interactions and energy beams-matter interactions, the dominant mechanisms of ACSM processes, and the current digital research and comparison. Future research directions are proposed to support and accelerate the industrial-scale implementation of ACSM.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2022)
Article
Engineering, Biomedical
Amir Mir, Xichun Luo, Inigo Llavori, Anish Roy, Danka Labus Zlatanovic, Shrikrishna N. Joshi, Saurav Goel
Summary: This paper provides a review of finite element (FE) modelling for simulating high-strain rate plastic deformation of metals in bio tribology and machining. It discusses the development of friction models, meshing and remeshing strategies, and constitutive material models. The study also analyzes the output solution variables as a function of input variables.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Engineering, Mechanical
Yonghang Jiang, Qinghua Song, Xichun Luo
Summary: Minimally invasive surgery is an important technique for cytopathological examination. Recent studies have focused on a three-dimensional (3D) puncture simulation model that can reveal the internal deformation state of tissue at the micro level. This study derived a viscoelastic constitutive equation suitable for muscle tissue, and developed a method to define the fracture characteristics of muscle tissue during the simulation process. By simulating the fracture of muscle tissue in contact with a puncture needle using the cohesive zone model and establishing a 3D puncture finite element model to analyze the deformation of the tissue, the stress nephrogram and reaction force under different parameters were compared and analyzed to study tissue deformation and guide the actual operation process to reduce pain.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2022)
Article
Automation & Control Systems
Jiabin Xu, Xiaoshuang Rao, Xiaoyu Xu, Kechong Wang, Bao Guo, Lifei Liu, Yingjie Li, Feihu Zhang
Summary: This paper presents a study on the surface modification of RB-SiC ceramic using cold atmospheric plasma (CAP) process. Through precision grinding tests and mathematical model analysis, the effect of the composite process on grinding force and surface material removal mechanism is revealed, and the technical difficulties in RB-SiC ceramic fabrication are solved.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Review
Engineering, Aerospace
Qingyu Meng, Bing Guo, Qingliang Zhao, Hao Nan LI, Mark J. Jackson, Barbara S. Linke, Xichun Luo
Summary: Grinding is widely used in material removal processes, and grinding force plays a crucial role in various aspects of the grinding process. This article reviews the theoretical methods and applications of grinding mechanics, providing insights into modeling principles, limitations, and future trends. Accurate prediction of grinding forces is essential for optimizing grinding parameters and machine design.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Automation & Control Systems
Yanjun Lu, Xiaoshuang Rao, Jiaxuan Du, Weifeng Guan
Summary: This paper proposes a dry single impulse EDM method for machining RB-SiC and reveals the material removal mechanism through analysis of topographies and phase components of the machined surface. Short pulse-on time mainly removes Si matrix, while the removal mechanism of SiC particles is attributed to thermal shock-induced spalling and decomposition at high temperatures.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Optics
Yiping Tang, Yukui Cai, Lei Wang, Xichun Luo, Bing Wang, Qinghua Song, Zhanqiang Liu
Summary: Superhydrophobic surfaces have gained significant attention for their self-cleaning, corrosion resistance, and anti-bacterial abilities. This paper proposes a hybrid laser-chemical method to prepare superhydrophobic micro patterns on 316L stainless steel, which combines laser ablation and laser-assisted chemical decomposition of stearic acid. The experiments demonstrate that this method can achieve the best superhydrophobicity with good chemical durability and corrosion resistance.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Industrial
Xichun Luo, Jian Gao, Wenkun Xie, Rashed Md. Murad Hasan, Yi Qin
Summary: A flexible single-step nanofabrication approach using programmable pulse modulation local anodic oxidation was developed to efficiently generate various 3D nanostructures. A process model linking pulse parameters with the geometry of 3D nanostructure was derived through parametric studies, allowing for precise control of the fabrication process. Experimental results demonstrated that this approach can create 3D nanostructures with sub-10 nm (lateral) and sub-nm (vertical) minimum feature sizes with high precision.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Editorial Material
Chemistry, Physical
Qi Liu, Mingjun Chen, Jian Cheng, Xichun Luo
Article
Engineering, Manufacturing
Pengfei Fan, Nirmal Kumar Katiyar, Saurav Goel, Yang He, Yanquan Geng, Yongda Yan, Hui Mao, Xichun Luo
Summary: This paper explores the effects of oblique nanomachining on GaAs machining quality, plasticity, and transport phenomena using atomic scale machining experiments and simulations. The study finds that under oblique cutting conditions, there is an early avalanche of dislocations, lower coefficient of friction, and higher specific cutting energy compared to orthogonal cutting. Through high-resolution transmission electron microscopy examination, it is revealed that plasticity during nanometric cutting of GaAs is facilitated by shuffle-set slip on the {1 1 1} slip system due to the 1 1 0 type dislocation. Overall, oblique cutting is inferred to be the optimal condition for high-quality wafer nanofabrication using an AFM.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Manufacturing
Jiabin Xu, Qiang Zhang, Runrun Gu, Xiangyu Zhang, Qiongyi He, Xinhua Liu, Xiaoshuang Rao, Long Zhang, Feihu Zhang
Summary: This paper introduces the precision grinding process for large-scale aspheric space optical mirror based on RB-SiC ceramic, including precision grinding and cold atmospheric plasma surface modification. The mathematical model calculation method for cold atmospheric plasma process is proposed, and the effectiveness of the technology is verified through experimental tests and mechanism studies.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
(2023)
Article
Chemistry, Analytical
Xiaoquan Shi, Yazhou Sun, Haiying Tian, Puthanveettil Madathil Abhilash, Xichun Luo, Haitao Liu
Summary: This study focuses on the impact of four key process parameters on the dimensions of material extrusion 3D printing filaments. Machine learning models were built to predict geometric dimensions, and the results showed good predictive performance. The study found that nozzle diameter, printing speed, extrusion pressure, and nondimensional nozzle height have different effects on filament dimensions. The findings can be used to predict filament size, guide parameter selection, and determine the size of 3D printing layers.
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
