Article
Mechanics
Bo -Yuan Su, Wen -Yea Jang
Summary: The present study investigated the microstructure and compressive response of ALPORAS closed-cell foam. Micro-CT technique and image processing algorithms were used to analyze the foam's interior structure and measure its geometrical characteristics. Three statistical measurements were employed to develop numerical models, and the effects of different parameters on the models' characteristics were examined. Numerical simulations were conducted and compared with experimental results, showing a discrepancy attributed to differences in microstructural features.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Chemistry, Physical
Dilip Muchhala, B. N. Yadav, Ashutosh Pandey, Rajeev Kumar, Amitava Rudra, Venkat Chilla, D. P. Mondal
Summary: The hot deformation behavior of different types of foams was investigated at different test temperatures and strain rates. It was found that the energy absorption capacity of the foams decreased with increasing test temperature and increased with increasing strain rate. The hybrid foam with the addition of cenospheres and SWNTs showed the highest plateau stress and energy absorption. The deformation mechanism of the foams varied with temperature and strain rate, as revealed by the activation energy data.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Enrique Prados Martin
Summary: Closed-cell aluminum foams are increasingly being used in automotive, aviation, and defense industries due to their high strength-to-weight ratio, good energy absorption performance, and affordable manufacturing costs. The microstructural parameters of closed-cell aluminum foams, such as cell size and shape irregularity, play a significant role in their compressive response. Recent studies have examined the relationship between macroscopic properties and microstructure, providing valuable insights into the material's behavior.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Je Hyun Lee, Min Jun Oh, Pil J. Yoo
Summary: This study introduces an innovative design for creating closed-cellular structured (CCS) foams with a wide range of physical controllability. By adjusting the compositional ratio, CCS foams exhibit completely different structural morphologies.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Alberto Jesus Poot Manzanilla, AlejandroCruz Ramirez, Eduardo Colin Garcia, Jose Antonio Romero Serrano, Ricardo Gerardo Sanchez Alvarado, Miguel Angel Suarez Rosales
Summary: Closed-cell A356 aluminum alloy foams were successfully fabricated with barite and calcium carbonate as thickening and foaming agents. The addition of Al-5Ti-1B and Al-10Sr master alloys improved the microstructure and mechanical properties of the foams, resulting in lower secondary dendritic arm spacing (SDAS) and the formation of solid solution dendrites and fine irregular fibrous silicon. The melt treatment route established in this study is a feasible way to improve the performance of closed-cell foams.
Article
Engineering, Mechanical
Dan-Andrei Serban, Emanoil Linul
Summary: This paper investigates the compression-compression fatigue behavior of polyurethane rigid foams of different relative densities. The stress-strain characteristics and yield stresses in compression were obtained through preliminary tensile and compression tests. It was found that a collapse of a region of the specimens was the failure mechanism during fatigue. The compression-compression fatigue curves showed similar behavior for foams with relative densities of 0.0854 and 0.1239, while the foam with a relative density of 0.2564 exhibited the lowest fatigue strength and had a curve characterized by two regions.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Chemistry, Physical
Changyun Li, Erkuo Yang, Ling Tang, Yang Li, Lei Xu
Summary: This paper reports a new closed-cell metal syntactic foam material and investigates the effect of sintering temperature on its microstructure and properties. The results show that the proposed fabrication method improves the performance of lightweight and high-strength syntactic foams, suggesting potential for further research.
Article
Polymer Science
Houqi Yao, Yuezhao Pang, Xin Liu, Jia Qu
Summary: The compressive responses of PVC foams with different densities were investigated under both quasi-static and high strain rate conditions. The results show that the mechanical properties of the foam materials are related to their density and are strain rate-sensitive.
Article
Microscopy
Xiaochun Zhu, Zhengkun Cheng, Youming Chen
Summary: This study proposes a method for measuring the thickness of individual cell walls in closed-cell foams using micro-CT images. The method involves various image processing techniques to obtain the thickness information and calculate the cell wall thickness.
JOURNAL OF MICROSCOPY
(2023)
Article
Mechanics
Bonthu Dileep, Rohith Prakash, H. S. Bharath, P. Jeyaraj, Mrityunjay Doddamani
Summary: Functionally graded closed cell foams reinforced with hollow glass microballoons were 3D printed and evaluated for mechanical buckling and free vibration response. FGF-2 showed higher buckling strength and better natural frequency performance compared to other FGFs. Experimental results were validated with finite element simulation results.
COMPOSITE STRUCTURES
(2021)
Article
Polymer Science
Yawei Shi, Aijun Hu, Zhiyuan Wang, Kedi Li, Shiyong Yang
Summary: Closed-cell rigid polyimide foams with excellent thermal stability and combined properties were prepared by thermal foaming of a reactive end-capped polyimide precursor powder in a closed mold, showing outstanding thermal stability and compression creep deformation resistance.
Article
Construction & Building Technology
Shunze Cao, Yuwu Zhang, Yang Lu
Summary: In this study, compression tests and finite element simulations were carried out on glass beads reinforced linear low-density polyethylene foams. The results showed that embedding glass beads could enhance the strength and energy absorption capacity of the foams. Experimental results were consistent with analytical predictions, and parametric studies explained the increase in foam hardening stress with decreasing particle size.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Jun Ho Lee, Geon Young Lee, Jong-joo Rha, Ji Hoon Kim, Jae-Hyung Cho
Summary: This study investigates the hollow structures of Ni foam struts fabricated by electroplating on a removable template using electron backscatter diffraction (EBSD). Three-dimensional pore structures and microstructural features of Ni foams were quantified using X-ray computed tomography (CT). The evolution of microstructure and mechanical properties during compression was studied using X-ray CT and compared with finite element method (FEM) predictions. The results showed that the stress drop in Ni foams started with the buckling of struts at the center, and the flow stress increased as the buckling spread to other regions. The numerical 3D modeling revealed that the compression caused transverse buckling of the struts, reducing the stress and changing the porosity of the foams. The study also found that a decrease in strut thickness or an increase in porosity resulted in a stress drop and an increase in energy absorption efficiency.
Article
Materials Science, Multidisciplinary
Jutta Luksch, Thomas Bleistein, Kristian Koenig, Jerome Adrien, Eric Maire, Anne Jung
Summary: Microheterogeneous materials like metal foams have a strong structure-property relationship, where the macroscopic properties are influenced by factors such as pore geometry, strut geometry, and microstructure, especially grain structure. The differences in microtensile properties of aluminum foam struts were found to be mainly due to micro-porosity and primary inclusions, which are likely caused by the manufacturing process of investment casting. The study used ex situ and in situ microtensile tests to understand the scattering in micromechanical properties of individual struts, with in situ tests using high resolution X-ray computed tomography revealing the microstructural failure mechanisms.
Article
Mechanics
Yue Ding, Xin Zhou, Jun Wang, Yajie Feng, Jianbo Tang, Nianwei Shang, Shiqing Xin, Xigao Jian, Maik Gude, Jian Xu
Summary: In this study, a highly efficient physical-based model was developed to predict and validate the anisotropic compressive behavior of closed-cell PUF at higher strains. The proposed model, based on LTCCC, successfully reproduced the layer-wise collapse phenomena of cells and struts, revealing the reasons behind the different crushing behavior in axial and perpendicular directions.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Mahadi Hasan, Md Ashraful Islam, Zhenyi Huang, Jingwei Zhao, Zhengyi Jiang
Summary: Successful bonding between cemented tungsten carbide and steel was achieved using the spark plasma sintering (SPS) technique. The results show that increasing the holding time at 1000 degrees C improves the bonding strength.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Hongxu Wang, Dakshitha Weerasinghe, Paul J. Hazell, Damith Mohotti, Evgeny V. Morozov, Juan P. Escobedo-Diaz
Summary: This study investigates the impact behavior of UHMWPE textile composites under different matrix rigidities. Experimental and numerical methods were used to analyze the mechanical properties. It was found that the composites changed from membrane stretching mode to plate bending mode as the matrix rigidity and thickness increased. The flexible matrix composites had higher perforation resistance but larger deformation compared to the rigid matrix counterparts.
DEFENCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
A. L. Herring, C. Sun, R. T. Armstrong, M. Saadatfar
Summary: Residual trapping is essential for the security and sustainability of geologic sequestration operations. Recent experiments indicate that cycles of scCO2 and brine injections can cause surface chemistry reactions, enhancing residual trapping. This study uses X-ray microcomputed tomography to investigate the alteration mechanism and provides new insights into the conditions under which wettability alteration affects scCO2 flow and trapping.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Engineering, Mechanical
Matthew J. Donough, B. Gangadhara Prusty, Mitchell J. Van Donselaar, Evgeny V. Morozov, Hongxu Wang, Paul J. Hazell, Andrew W. Philips, Nigel A. St John
Summary: This work investigated the damage in thick glass-fibre/epoxy laminates caused by low velocity impacts. Experimental and numerical results showed that the impact damage was localized in the vicinity of the impactor contact area and included an interplay of various damage mechanisms. The highest impact damage resistance was obtained with the 0 degrees (in-plane) specimen due to the alignment of fibers to the impact loading direction.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Chemistry, Physical
F. M. Schaller, H. Punzmann, G. E. Schroeder-Turk, M. Saadatfar
Summary: This paper explains the observations of a study on the X-ray computed tomography of granular ellipsoidal packings using a fundamental theoretical relationship for mixture distributions. The main finding is that the bi-disperse ellipsoidal packings studied can be interpreted as a mixture of two uncorrelated mono-disperse packings, insensitive to the compaction protocol.
Article
Mechanics
P. Das, M. A. Islam, S. Somadder, M. A. Hasib
Summary: This paper presents the stresses and displacement fields in a functionally graded material (FGM) thick-walled sphere under constant interior and exterior pressure. The investigation was carried out using analytical and numerical methods, and exact and finite element models were created. The analytical solutions for displacement and stress distribution were developed and compared to the results from the finite element analysis.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Nanoscience & Nanotechnology
Yang Wang, Qiang Liu, Biao Zhang, Hongxu Wang, Paul J. Hazell, Bo Li, Tao Song, Ling Li, Futian Liu, Feng Ye
Summary: In this study, a new type of B4C/2024Al functionally gradient material (FGM) with eliminated sharp interfaces was constructed to reproduce the hierarchical and gradient structures of nacre. The FGMs demonstrated improved performance in resisting ballistic attacks and maintaining integrity compared to uniform structures. The nacre-like structure introduced multiple toughening mechanisms and increased energy-absorbing capability. The elimination of abrupt interfaces prolonged the projectile-target interaction period and strengthened the eroding effect on the projectile.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Ricardo Santamaria, Ke Wang, Mobin Salasi, Mariano Iannuzzi, Michael Y. Mendoza, Md Zakaria Quadir
Summary: This study investigates the stress corrosion cracking (SCC) behavior of type 316L stainless steel (SS316L) produced with sinter-based material extrusion additive manufacturing (AM). The study focuses on the influence of sintered microstructures on SCC initiation and crack-branching susceptibility. Results showed that sinter-based AM SS316L was more susceptible to SCC initiation than solution-annealed (SA) wrought SS316L but more resistant than cold-drawn (CD) wrought SS316L in terms of crack initiation time. Sinter-based AM SS316L also exhibited lower crack-branching tendency compared to the two wrought SS316L counterparts.
Article
Chemistry, Physical
Ricardo Santamaria, Mobin Salasi, William D. A. Rickard, Kod Pojtanabuntoeng, Garry Leadbeater, Mariano Iannuzzi, Steven M. Reddy, Md Zakaria Quadir
Summary: There is a growing interest in using selective laser melting (SLM) for metal additive manufacturing. However, our understanding of SLM-printed stainless steel is limited due to complex process variables. This study found discrepancies in crystallographic textures and microstructures compared to previous literature. The as-printed material showed macroscopic asymmetry in structure and crystallographic texture, with specific low-angle boundary features being identified as non-crystallographic.
Article
Engineering, Multidisciplinary
Shakib Hyder Siddique, Paul J. Hazell, Gerald G. Pereira, Hongxu Wang, Juan P. Escobedo, Ali A. H. Ameri
Summary: This paper investigates the stiffness and energy absorption capabilities of biomimetic structures based on the internal architecture of a cornstalk. The specimens were manufactured using 3D printing and a tough thermoplastic material. Compression tests were performed to extract various parameters, and a numerical model was developed to analyze the behavior of the structures. The results showed that the cornstalk-inspired biomimetic structure had a significantly higher specific energy absorption capability compared to other designs.
Article
Engineering, Manufacturing
Hari Bahadur Dura, Paul J. Hazell, Hongxu Wang, J. P. Escobedo-Diaz
Summary: A biomimetic protective beam inspired by curved elasmoid fish scales was studied using numerical and experimental approaches to investigate its bending stiffness properties. The results show that the bioinspired design has improved flexural stiffness compared to the baseline design, and scales with smaller radii exhibit greater structural resilience, which is suitable for the design of protective structures for low-velocity impact applications.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Review
Engineering, Manufacturing
Arcade Serubibi, Paul J. Hazell, Juan Pablo Escobedo, Hongxu Wang, Ebrahim Oromiehie, Gangadhara B. Prusty, Andrew W. Phillips, Nigel A. St John
Summary: Recent advances in automated manufacturing of composite structures have sparked renewed interest in fibre metal laminates (FMLs) across various engineering sectors. FML structures, which combine metal plates and composite laminates, are increasingly being utilized for their excellent mechanical properties and cost-effectiveness in withstanding impact and blast loading. This review paper consolidates recent publications to provide an overview of the behavior of FML structures under impact and blast loading, compares existing techniques for assessing failure mechanisms, discusses numerical modeling approaches applicable to heterogeneous structures, and presents innovative designs to enhance the energy absorption capability and damage tolerance of FML structures.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Nanoscience & Nanotechnology
Jianshen Wang, Daniel East, Evgeny V. Morozov, Hongxu Wang, Paul J. Hazell, Juan P. Escobedo-Diaz
Summary: This study investigated the mechanical response, microstructures, and failure mechanisms of additively manufactured Ti matrix composites with Ti2Ni and TiCx reinforcements under various loading rates. The results showed that the mechanical properties of the composites changed with the NCG fraction. The failure mechanisms involved tensile fracture of TiCx precipitates and shear of the Ti matrix. Composites with higher NCG content exhibited increased strength, reduced ductility, and lower strain rate sensitivity. The Ti-Ni-C composite showed enhanced strength without compromising ductility under high strain rate compression loading, making it a promising material for impact load applications.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Multidisciplinary Sciences
Palash Das, Md. Ashraful Islam, Dipayan Mondal, Md. Sharier Nazim
Summary: An investigation on the steady-state heat transfer in a circular sandwich structure with convective-radiative boundary conditions was conducted. By developing an accurate analytical solution and using the Galerkin finite element approximation, the effects of various factors on heat transfer efficiency were studied and analyzed.
Proceedings Paper
Materials Science, Multidisciplinary
Muhammed Kamrul Islam, Hongxu Wang, Paul J. Hazell, Md Abdul Kader, Juan P. Escobedo
Summary: This paper investigates the quasi-static response of structures inspired by the horse hoof wall structure. By mimicking the laminated structure of the horse hoof wall, a composite structure was developed using the biomimicry design spiral approach and additive manufacturing technique. The study found that the laminated structures filled with resin material exhibit better energy absorption capacity than other structures. This research contributes to the development of energy absorbing biomimetic structures and improving the bonding and strength of 3D printed structures.
MATERIALS TODAY-PROCEEDINGS
(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)
