Article
Materials Science, Multidisciplinary
Lipeng Gao, Guirong Li, Hongming Wang, Yuwei Yan
Summary: In this study, FeCoNi1.5CrCu/Al composites with excellent mechanical properties were successfully prepared using microwave sintering technology. It was found that the material maintained a fine and uniform microstructure during microwave heating. The mechanism of interface formation revealed the presence of an atomic diffusion layer with a BCC solid solution structure between the high entropy alloy particles and the matrix, which significantly enhanced the interfacial bonding performance.
MATERIALS CHARACTERIZATION
(2022)
Article
Engineering, Mechanical
Binbin Xu, Anran Wei, Jiayu Ye, Wenhao Sha, Fenglin Guo
Summary: The theoretical method presented in this work offers a solution for the creep behavior of composite materials at high temperatures by considering misfit deformation and stress redistribution caused by interface diffusion. The methodology can be conveniently applied to account for various factors such as plasticity and creep of matrix, interface debonding, and microcracks, paving the way for the study of the complex behavior of composite materials at high temperatures.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Chemistry, Physical
Lewen Fan, Lizhuang Yang, Dongdong Zhao, Liying Ma, Chunnian He, Fang He, Chunsheng Shi, Junwei Sha, Naiqin Zhao
Summary: In this work, few-layered MoS2 nanosheet-reinforced Al matrix composites were developed through powder metallurgy and hot extrusion. The addition of FLM improved the interfacial bonding, resulting in increased tensile strength and elongation. The main strengthening mechanisms identified were grain refinement, dislocation strengthening, and load transfer.
Article
Chemistry, Physical
Bin Wang, Yaotian Yan, Jinghuang Lin, Yifei Cai, Jian Cao, Junlei Qi
Summary: Efficient multi-path heat dissipation is achieved through the fabrication of aluminum foam/carbon composites using chemical bath and annealing method. The composites possess high effective thermal conductivity and retain the convective heat transfer characteristics of the porous structure. The optimized composites, prepared with 350 g dopamine addition at 600 degrees C annealing temperature, exhibit continuous and high crystalline carbon coating. The desirable thermal conductivity of 21.44 W m-1 K-1, almost 3 times that of pristine aluminum foam, is obtained along with a remarkable cooling efficiency of 24.71%.
Article
Engineering, Multidisciplinary
Jianwen Le, Yuanfei Han, Minhan Fang, Shaopeng Li, Guangfa Huang, Jianwei Mao, C. J. Boehlert, Weijie Lu
Summary: This research proposes a novel universal shear-lag model that accurately assesses the load-transfer strengthening of whiskers in metal matrix composites. By considering the probability density functions of whisker orientation and aspect ratio distributions, this model provides a simplified way to evaluate the influence of these factors on whisker load transfer. The model shows better agreement with experimental results compared to other models.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Zhiyu Yang, Jianzhong Fan, Yanqiang Liu, Junhui Nie, Ziyue Yang, Yonglin Kang
Summary: The study examines the impact of SiC particles on the strength and ductility of composite materials, using different mechanical properties of Al-Cu-Mg alloy matrices and manufacturing composites in 18 combinations. The critical particle size for optimal ductility was identified, and the strengthening limit and match range for effective strengthening were defined based on particle size and matrix strength. This research provides valuable insights for optimizing the mechanical properties of particle-reinforced metal matrix composites.
Review
Materials Science, Multidisciplinary
Massoud Malaki, Alireza Fadaei Tehrani, Behzad Niroumand, Manoj Gupta
Summary: This paper critically reviews and comprehensively discusses the common approaches used to enhance wetting conditions at reinforcement-matrix interfaces in metal matrix composites. Special attention is given to the enhancement of mechanical properties in aluminum matrix composites for lightweight materials. It is believed that effective treatment methods can greatly influence wetting and interfacial strength.
Article
Materials Science, Multidisciplinary
D. A. Serebrennikov, A. A. Bykov, A. L. Trigub, N. A. Kolyshkin, A. L. Freydman, A. Aborkin, A. O. Tovpinets, E. S. Clementyev, A. Yu Goikhman
Summary: This study focused on fabricating and characterizing a new type of composite invar material that combined near-zero thermal expansion with functional properties, achieved by embedding particles of negative thermal expansion SmB6 in an aluminum matrix. Experimental data and theoretical models showed that the composite material exhibited invar behavior up to around 60 K, with a zero coefficient of thermal expansion near 45 K, providing an extended temperature range compared to pure aluminum.
RESULTS IN PHYSICS
(2021)
Article
Mechanics
Binbin Xu, Fenglin Guo
Summary: This study developed a micromechanics scheme to predict creep strain and stress relaxation in metal-matrix particulate composites induced by interface diffusion, finding that ultimate creep strain and relaxed stress are primarily related to material properties and component percentages. Parameters of interface diffusion mainly influence the rate of creep strain, while the composite's creep deformation and stress relaxation are more sensitive to volume fraction of the inclusion.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Chemistry, Physical
Donghyun Lee, Junghwan Kim, Sang-Kwan Lee, Yangdo Kim, Sang-Bok Lee, Seungchan Cho
Summary: Boron carbide reinforced aluminum alloy composites with continuous multi-interphases were successfully fabricated by stir casting process. The formation of interphases at the B4C/Al6061 interface during the process was consistent with thermodynamic calculations, suggesting possible quantitative compositions of B4C and Al6061 for forming the mentioned interphases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
L. Sousa, A. C. Alves, A. Guedes, F. Toptan
Summary: The study found that Ti-B4C composites processed by different methods exhibit differences in corrosion resistance and tribocorrosion behavior. Additionally, the composites showed a tendency towards certain corrosion resistance characteristics in tribocorrosion tests.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Multidisciplinary
S. Z. Zhu, D. Wang, B. L. Xiao, Z. Y. Ma
Summary: In this study, a pre-aging treatment was adopted to improve the hardness of the SiCp/6092Al composite and 6092Al alloy, showing that pre-aging had a more obvious improvement in the final hardness in the composite compared to the alloy. Different clustering behaviors during natural aging after pre-aging led to varying effects on precipitation, with the hardness after artificial aging remaining unchanged in the composite but decreasing in the 6092Al alloy with prolonged natural aging time.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Engineering, Manufacturing
Siqi Xiang, Hanzhi Hu, Yihan Liang, Xinfang Zhang
Summary: This study converted stoichiometric TiC to sub-stoichiometric TiCx through ball milling, and used TiCx to strengthen the Cu matrix, thus increasing the hardness and strength of Cu-matrix composites. The use of sub-stoichiometric TiCx is a promising strategy to expand the application of Cu-matrix composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Multidisciplinary
Ye Tian, Rui Yang, Zhoupeng Gu, Hang Zhao, Xianqian Wu, Shahed Taghian Dehaghani, Hao Chen, Xiaomei Liu, Tonghu Xiao, Andre McDonald, Hua Li, Xiuyong Chen
Summary: The study introduces a novel nickel-tungsten carbide composite coating with biomimetic hierarchical structure that effectively inhibits crack propagation and controls damage caused by cavitation erosion. This design shows excellent resistance against cavitation and dissipates impact energy.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Zhiyu Yang, Jianzhong Fan, Yanqiang Liu, Junhui Nie, Ziyue Yang, Yonglin Kang
Summary: The study revealed that particles in metal matrix composites can both strengthen and weaken the material during deformation. The transformation from strengthening to weakening is controlled by the damage process of the particles, and effective strengthening can be achieved with proper matching of particle and matrix. The effective match range of particle size and matrix strength was defined as a key factor in determining the behavior of the composite material.
Article
Materials Science, Multidisciplinary
Ricardo Fernandez, Gizo Bokuchava, Isaac Toda-Caraballo, Giovanni Bruno, Vitalii Turchenko, Yulia Gorshkova, Gaspar Gonzalez-Doncel
ADVANCED ENGINEERING MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
R. Fernandez, G. Gonzalez-Doncel, G. Garces, G. Bruno
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Nanoscience & Nanotechnology
R. Fernandez, G. Bruno, G. Garces, H. Nieto-Luis, G. Gonzalez-Doncel
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Materials Science, Multidisciplinary
Sara Senoris-Puentes, Ricardo Fernandez Serrano, Gaspar Gonzalez-Doncel, Jesper Henri Hattel, Oleg V. Mishin
Summary: The study found that sound FSW joints can be obtained between an AA6061 aluminum plate and a thick MMC plate with 40% SiC particles. The joints withstand tensile testing, with ductile failure occurring in a soft region on the alloy side. Metallographic examination on the MMC side after FSW showed curved bands with lower frequency of SiC particles and hardness.
Article
Metallurgy & Metallurgical Engineering
Elizabeth Hoyos, Yesid Montoya, Ricardo Fernandez, Gaspar Gonzalez-Doncel
Summary: Two simple models are proposed to calculate the strain rate during the friction stir welding process, based on operational parameters. These models provide reasonable values within the range of reported strain rate data, allowing for prediction of weld quality.
WELDING IN THE WORLD
(2021)
Article
Chemistry, Physical
L. Millan, G. Bokuchava, R. Fernandez, I Papushkin, G. Gonzalez-Doncel
Summary: The stress equilibrium (SE) method is a powerful tool for calculating the un-stressed lattice parameter a(0) to determine residual stress (RS) by diffraction techniques. It is particularly useful in exploring the effects of microstructural factors on macroscopic residual stress and can address complex cases that have not been fully exploited.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Itziar Serrano-Munoz, Ricardo Fernandez, Romeo Saliwan-Neumann, Gaspar Gonzalez-Doncel, Giovanni Bruno
Summary: In this study, electron backscatter diffraction was used to investigate microscopic dislocation structures generated during creep in pure 99.8% aluminium. The results showed that the formation of subgrain cellular structures is independent of crystallographic orientation, but their density strongly depends on the grain crystallographic orientation. Specifically, (111) grains exhibited the highest densities at both stress levels.
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2022)
Article
Acoustics
Yuliang Zhao, Weixiang He, Dongfu Song, Fanghua Shen, Xinxin Li, Zhenzhong Sun, Yao Wang, Shuhong Liu, Yong Du, Ricardo Fernandez
Summary: This study compared the effects of ultrasonic melt processing (USMP) and Al-Ti-B on the solidified microstructure of multicomponent Al-4.5Cu-0.5Mn-0.5Mg-0.2Si-xFe alloys (x = 0.7 and 1.2 wt%). It was found that the USMP + Al-Ti-B method produced a more profound refinement effect and also refined the Fe-rich phases in the alloys. A mechanism was proposed, suggesting that the deagglomerated TiB2 particles induced by USMP provided more effective nucleation sites for alpha-Al, while the refined interdendritic regions limited the growth of Fe-rich phases in the eutectic reaction. These findings demonstrate the feasibility of using the combined USMP + Al-Ti-B methods for microstructural refinement and improving the casting soundness and mechanical properties of alloys.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
M. Eddahbi, R. Fernandez, I. Llorente, G. Gonzalez-Doncel
Summary: This study investigates the texture and microstructural changes in 6061Al-20vol%SiCw metal matrix composite undergoing severe thermal cycles. The results show that when an external tensile stress is applied, the whiskers rotate and large deformations occur, resulting in strong texture and superplasticity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ricardo Fernandez, Gizo Bokuchava, Giovanni Bruno, Itziar Serrano-Munoz, Gaspar Gonzalez-Doncel
Summary: The peak broadening in neutron diffraction experiments on pure Al (99.8%) and an Al-Mg alloy pre-deformed at different creep strains is analyzed. These results are combined with the kernel angular misorientation of electron backscatter diffraction data from the creep-deformed microstructures. It is found that differently oriented grains possess different microstrains, which vary with creep strain in pure Al, but not in the Al-Mg alloy. This behavior can explain the power-law breakdown in pure Al and the large creep strain observed in Al-Mg.
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2023)
Article
Materials Science, Multidisciplinary
Philipp Rieder, Lukas Petrich, Itziar Serrano-Munoz, Ricardo Fernandez, Giovanni Bruno, Volker Schmidt
Summary: This study statistically analyzed the subgrain structures of extruded pure aluminum under different levels of creep stress using Electron Backscatter Diffraction (EBSD) images. The results showed that in the power-law breakdown (PLB) regime, {111} subgrains tend to accumulate more strain compared to {001} subgrains. This suggests that the mechanisms leading to PLB may be associated with strain localization dependent on intergranular stress.
MICROSCOPY AND MICROANALYSIS
(2023)
Article
Engineering, Multidisciplinary
Laura Millan, Gabriel Kronberger, Ricardo Fernanandez, Gizo Bokuchava, Patrice Halodova, Alberto Saez-Maderuelo, Gaspar Gonzalez-Doncel, J. Ignacio Hidalgo
Summary: Residual stresses generated in metallurgical manufacturing processes can negatively affect the performance of structural components. While current methods can determine stress variations at a macroscopic scale, quantifying microscopic residual stresses is challenging. This study proposes the use of machine learning to learn equations that describe microscopic residual stresses, achieving accurate results in a few minutes using real neutron diffraction peaks as a reference.
APPLICATIONS IN ENGINEERING SCIENCE
(2023)
Article
Engineering, Multidisciplinary
G. Ruiz-Menendez, C. Andrade, G. Carro-Sevillano, C. Pena, P. Adeva, J. Medina, R. Fernandez
Summary: In this study, rebars extracted from a reinforced concrete viaduct were investigated to understand their failure mode. It was found that the rebars broke in a tilted pattern without reduction in diameter. Hardness measurements on the cross section of the rebars revealed that the failure mode was either tensile plastic collapse or fatigue. The presence of corrugations on the rebars caused stress concentration, explaining the observed tilted appearance of the fracture surface. Further studies should be conducted to explore the influence of different corrugation patterns on the fracture appearance.
RESULTS IN ENGINEERING
(2022)
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)
