Article
Chemistry, Physical
Yang Zhou, Fang Yang, Cunguang Chen, Yanru Shao, Boxin Lu, Yanli Sui, Zhimeng Guo
Summary: High-plasticity in-situ TiB/Ti matrix composites with uniform microstructure and grain refinement were fabricated by vacuum sintering and hot rolling. The Ti-2.0 wt% ZrB2 composite exhibited outstanding mechanical properties, attributed to grain refinement and dominant role of dislocation substructure hardening.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Q. Yan, B. Chen, J. S. Li
Summary: In this study, graphene nanosheet (GNS)-reinforced Ti-6Al-4V matrix composite was successfully fabricated using selective laser melting (SLM) process, which exhibited super-high tensile strength and high Young's modulus. The locally reacted GNSs and in-situ formed ultrafine TiC particles were found to be the main contributors to the outstanding mechanical properties of the composite.
Article
Materials Science, Multidisciplinary
Shuai Wang, FengBo Sun, WenQi Liu, Rui Zhang, Qi An, LuJun Huang, Jian Xiong, Lin Geng
Summary: Multilayer structured titanium matrix composites were fabricated through powder metallurgy, consisting of pure Ti layers and TiB reinforced Ti-6.5Al-2Zr-1Mo-1V (TA15) composite layers. The mechanical properties and deformation behavior of the composite under dynamic and quasi-static compressions were investigated. Dynamic compression improved the compressive flow stress and promoted the formation of {11 (2) over bar1} twins in both pure Ti layer and TA15 matrix.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Yuchao Song, Fucheng Qiu, Dmytro Savvakin, Xiaofeng Xu, Oleksandr Stasiuk, Orest Ivasishin, Tuo Cheng
Summary: In this study, highly dense in situ reinforced Ti6Al4V/TiB composites were successfully manufactured using a hydrogen-assisted blended elemental powder metallurgy approach. By optimizing the processing parameters, composites with stable microstructures and excellent mechanical properties were obtained.
Article
Engineering, Multidisciplinary
Shaopeng Li, Xiaoyan Wang, Jianwen Le, Yuanfei Han, Nan Zong, Zichao Wei, Guangfa Huang, Weijie Lu
Summary: In this study, a new strategy was proposed to optimize the microstructure of powder metallurgical titanium matrix composites (TMCs) by in-situ planting nano-TiB networks, resulting in a significant improvement in mechanical properties. The well-designed TiB/IMI834 composites exhibited higher compressive yield strength and tensile strength compared to thermo-mechanically processed TMCs.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
M. Jia, Y. Alshammari, F. Yang, L. Bolzoni
Summary: TiB-reinforced Ti???6Al???4V composites with different B content were manufactured via flashless hot forging and the effects of solution plus aging heat treatments were studied. It was found that flashless hot forging can achieve fully dense materials, and the addition of B can significantly enhance the strengthening effect. The subsequent solution plus aging heat treatments can improve the mechanical properties and microstructure of the materials.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Shaopeng Li, Xiaoyan Wang, Zichao Wei, Yuanfei Han, Huigang Shi, Jianwen Le, Guangfa Huang, Di Zhang, Weijie Lu
Summary: This study proposes a technique to overcome the strength-ductility mismatch of sintered titanium matrix composites by in-situ planting TiB nano-fibers and La2O3 nano-particles. By fabricating (TiB+La2O3)/Ti composites with excellent strength-ductility synergy, the ultra-fine network and fine-grain effect improved the elongation and ultimate tensile strength. The strength-ductility synergy effects were attributed to fine-grain effects and the synergistic effect between nanoreinforcements and the matrix. This work opens up a new route for sintering nanoparticles reinforced titanium matrix composites components with promising properties.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Yanjun Liu, Yu Pan, Jianzhuo Sun, Fan Kuang, Aihua Yu, Shaofeng Yang, Jiazhen Zhang, Xin Lu
Summary: In this study, high strength and high wear-resistant titanium matrix composites reinforced with in situ TiC derived from pyrolysis of polysilazane were successfully fabricated. The effects of polysilazane addition on the microstructure, hardness, mechanical properties, and tribological properties were systematically studied. The composites exhibited better comprehensive properties compared to conventional methods, with a homogeneous and fine-grained microstructure, excellent mechanical properties, and high wear resistance.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Shun Lv, Jinshan Li, Shufeng Li, Nan Kang, Biao Chen
Summary: The reinforcing effect of short carbon fibers (CFs) in Ti-6Al-4V (TC4) matrix composites was investigated through mechanical testing and microstructure analysis. It was found that CFs/TC4 composites exhibit ductile fracture at elevated temperatures, and the reinforcing effect of CFs becomes more prominent with increasing temperature.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Multidisciplinary Sciences
Lei Liu, Shufeng Li, Deng Pan, Dongxu Hui, Xin Zhang, Bo Li, Tianshou Liang, Pengpeng Shi, Abdollah Bahador, Junko Umeda, Katsuyoshi Kondoh, Shaolong Li, Lina Gao, Zhimao Wang, Gang Li, Shuyan Zhang, Ruihong Wang, Wenge Chen
Summary: In this study, a new strategy for developing titanium matrix composites (TMCs) with a dual-structure is proposed. The TMCs achieve enhanced strength compared to homostructure composites, while maintaining 12.0% elongation comparable to the matrix Ti6Al4V alloys. This is achieved by using a TiB whisker rich region engendered fine grain Ti6Al4V matrix with a three-dimensional micropellet architecture (3D-MPA) as the primary structure and evenly distributed 3D-MPA reinforcements and a TiBw-lean titanium matrix as the overall structure.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Materials Science, Multidisciplinary
Huiying Liu, Shufeng Li, Lei Liu, Shaolong Li, Lina Gao, Nannan Wei, Shaodi Wang, Xiaodong Hou, Shuyan Zhang, Xin Zhang, Bo Li
Summary: This study developed a novel method to control the size of titanium boride whiskers through the use of Ti-TiBw composite powder produced by the plasma rotating electrode atomization method. The addition of copper as an alloying element in the Ti-TiBw composite system through powder metallurgy was investigated to determine its effect on the size parameters, microstructure, and mechanical properties of the composites. The results showed that the hardness of the specimens increased by 61.9%, while their tensile strength and yield strength also increased significantly, with no significant change in elongation.
Article
Materials Science, Multidisciplinary
Ming Ji, Lujun Huang, Rui Zhang, Shuai Wang, Fengbo Sun, Fanchao Meng, Lin Geng, Guangquan Tang, Hongwei Zhang
Summary: Titanium Matrix Composites (TMCs) with a novel multiscale gradient-laminate network structure were fabricated using powder metallurgy method. The composites exhibit improved bending strength and toughness, with crack deflection, prolonged crack propagation path, crack blunting, network microcracks, and interface cracks contributing to the enhancement of mechanical properties.
MATERIALS CHARACTERIZATION
(2023)
Article
Mechanics
Yaqian Liang, Long Jiang, Xiukuang Zhang, Zhenxiang Pei, Qian Lei
Summary: Cr3C2 and graphite reinforced Cu-Sn matrix composites were fabricated and their microstructure, mechanical properties, and tribological properties were investigated. The results showed that the addition of Cr3C2 improved the high-temperature stability and wear resistance of the composites.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Fangxia Xie, Jiabing Huang, Hao Yang, Xueming He
Summary: The Ti-10Mo/xHA composites fabricated by powder metallurgy showed excellent microstructural evolution, mechanical properties, and biological activity. As the HA content increased, the elastic modulus increased while the compressive strength decreased, and excessive HA content resulted in an increase in microcracks and pores.
MATERIALS TODAY COMMUNICATIONS
(2021)
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, Multidisciplinary
H. Z. Lu, H. W. Ma, W. S. Cai, X. Luo, Z. Wang, C. H. Song, S. Yin, C. Yang
Summary: A stable tensile recovery strain induced by a Ni4Ti3 nanoprecipitate in a Ni50.4Ti49.6 shape memory alloy fabricated via selective laser melting was reported. The heat-treated SMA exhibited a larger strain/stress field inside the grain interior region and showed three-stage phase transformation. The results provide insights into tailoring the microstructure and functional properties of NiTi SMAs by SLM.
Article
Engineering, Multidisciplinary
W. J. Gao, W. W. Zhang, T. Zhang, C. Yang, X. S. Huang, Z. Y. Liu, Z. Wang, W. H. Li, W. R. Li, L. Li, L. H. Liu
Summary: This study introduces a new route to overcome the ambient-temperature brittleness of bulk metallic glasses by creating bi-continuous interpenetrating-phase composites through high-pressure die casting. The mechanical properties of the BMG composite are significantly improved due to the excellent metallurgical bonding between matrix and reinforcement, as well as the efficient suppression of shear band propagation by a three-dimensional metal skeleton, showing promise for cost-effective industrial applications.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
H. Z. Lu, L. H. Liu, C. Yang, X. Luo, C. H. Song, Z. Wang, J. Wang, Y. D. Su, Y. F. Ding, L. C. Zhang, Y. Y. Li
Summary: This study investigates the simultaneous enhancement of mechanical and shape memory properties of TiNi shape memory alloys fabricated using selective laser melting. Heat-treatment homogenization of Ti2Ni precipitates is found to significantly improve the alloy's tensile strength, elongation, and shape memory effect. The enhanced properties are attributed to precipitation strengthening, work hardening, and the presence of homogeneous nanoscale globular Ti2Ni precipitates, which inhibit the propagation of microcracks and suppress dislocation movement.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
L. H. Liu, H. W. Ma, S. J. Yang, Y. J. Zhao, W. S. Cai, T. Chen, W. W. Zhang, C. Yang
Summary: This study successfully produced a Cu-12.9Zn-2.5Si silicon brass by selective laser melting (SLM) and investigated its micro-structure, mechanical and corrosion properties through various techniques. The study found that optimizing the SLM process parameters resulted in nearly full-dense brass and the annealing process improved the corrosion resistance but decreased the yield strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Manufacturing
H. Z. Lu, T. Chen, L. H. Liu, H. Wang, X. Luo, C. H. Song, Z. Wang, C. Yang
Summary: This study focuses on the additive manufacturing of a modified Ni50.6Ti49.4 shape memory alloy powder, which results in a novel ordered function domain. The microstructure of the function domain is modulated to yield superior properties, providing a new strategy for the fabrication of NiTi alloys.
VIRTUAL AND PHYSICAL PROTOTYPING
(2022)
Article
Materials Science, Multidisciplinary
L. H. Liu, W. J. Gao, X. S. Huang, T. Zhang, Z. Y. Liu, C. Yang, W. W. Zhang, W. R. Li, L. Li, P. J. Li
Summary: High-pressure die casting (HPDC) is an important forming technology for industrial bulk metallic glass (BMG) parts. This study investigates the correlation between flow and crystallization behavior in the HPDC process. The results show that the content of amorphous phase decreases with increasing flow rate, indicating a strong dependence of crystallization kinetics on the flow field.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Chenyang Jiang, Xiaoqiang Li, Hao Luo, Jingmao Li, Shengguan Qu, Chao Yang
Summary: Selective laser melting was used for the first time to fabricate DT300 ultra-high strength steel, resulting in fully dense parts with greater than 99% relative density. The study also explored the types and formation mechanism of defects under different conditions. The specimens fabricated with optimized parameters exhibited outstanding mechanical properties and surface quality.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Editorial Material
Materials Science, Multidisciplinary
Chao Yang, Lai-Chang Zhang, Suryanarayana Challapalli
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
W. S. Cai, H. Z. Lu, H. Z. Li, Z. Liu, H. B. Ke, W. H. Wang, C. Yang
Summary: An ultrafine-grained NiTi-based shape memory alloy with excellent superelasticity was successfully prepared through spark plasma sintering, and its microstructural evolution and superelastic properties were investigated. The results showed that residual nano-scale amorphous phase and coherent or semi-coherent fcc (Ti,Zr)2Ni precipitate played important roles in achieving perfect superelasticity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
W. S. Cai, T. Chen, H. Z. Lu, H. W. Ma, Z. Liu, A. Yan, C. H. Song, H. Hosoda, C. Yang
Summary: In this study, a dual-SMA composite with a biospired honeycomb structure was designed and fabricated using a combination of 3D printing and hot extrusion. The composite exhibited superior superelasticity, with a remarkable recoverable strain and good recovery rate. The honeycomb structure facilitated the occurrence of progressive phase transformation, enabling the composite to sustainably bear loads.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Jiayin Li, Xiaotao Liu, Xuan Luo, Fei Gao, Chao Zhao, Bowen Ma, Dongdong Li, Chao Yang
Summary: Introducing Cu (3.5 wt%) into Ti6Al4V through EB-PBF enables the fabrication of Ti6Al4V-3.5Cu alloy with improved ductility and mechanical property isotropy, surpassing the performance of the solely PBF-EB/Ti6Al4V alloy. The addition of Cu leads to the formation of micro/nanosized Ti2Cu phases, contributing to a significant strengthening effect and preventing plastic deterioration caused by brittle lamellar structures. Microstructural evolution involving the generation of twin structures and spheroidization of α-Ti, coupled with the intrinsic heat treatment during the EB-PBF process, enhances the ductility of the TVAC alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
C. Yang, Y. X. Liao, W. S. Cai, H. Z. Lu, Y. G. Yao, T. Chen, S. Yin
Summary: A semi-solid sintering method was developed to construct a core-shell architecture in Ti68.8Nb13.6Co6.8Cr5.1Al6.5 alloy, and the underlying mechanism of microstructure evolution and deformation behavior was revealed. The resulting core-shell structure exhibited high strength and plasticity, making it suitable for structural materials applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.
