Article
Materials Science, Multidisciplinary
Maya Pishvar, Mehrad Amirkhosravi, Ica Manas-Zloczower
Summary: In this study, TPU-PTFE nanocomposites with improved thermomechanical properties were successfully made by fibrillation of micron-sized PTFE particulates inside the TPU matrix. PTFE forms a fibrillary network inside the TPU matrix, which enhances the creep behavior, thermal stability, storage modulus, and reduces the thermal expansion coefficient of the nanocomposites. The glass transition temperature of nanocomposites with 10 wt % PTFE shows two transitions, while a single peak is observed for the neat TPU.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Applied
Marija Pergal, Gordana Gojgic-Cvijovic, Milos Steinhart, Dragan Manojlovic, Sanja Ostojic, Lato Pezo, Milena Spirkova
Summary: The influence of soft segment content on the functional properties of polyurethane network/organoclay nanocomposites was studied. Decreasing soft segment content led to a higher degree of phase separated microstructure and improvements in multiple properties, while also reducing crosslinking density and hydrophobicity.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
Marcin Wloch, Paulina Landowska
Summary: Bio-based fillers for polymer composites are still of interest due to their low cost and renewable nature. In this study, partially green composites were prepared using thermoplastic poly(ester-urethane) mixed with unmodified and modified grinded buckwheat husks. The results showed that the introduction of buckwheat husks retained high tensile strength but decreased elongation at break. The chemical treatment altered the mechanical properties of the filler and composites.
Article
Materials Science, Composites
Emine Hilal Mert, Hatice Hande Mert
Summary: In this study, experimental design methodology was used to prepare polystyrene based polyHIPE nanocomposites with reinforced surface modified nanoclay. The presence of modifier groups on the nanoclay surface did not compromise emulsion stability. A total of 36 samples were produced to determine the relationship between emulsion preparation conditions and final polyHIPE properties, revealing the interactions of experimental parameters and deriving empirical model equations for each property.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
Xin-Gang Chen, Ang Li, Yang-Fei Zhang
Summary: Silver nanoparticle-filled thermoplastic polyurethane composites are widely used in various fields, including medical and electronic devices. This study found that the thermal, mechanical, and electrical properties of the composites are significantly influenced by temperature, with changes in thermal conductivity, tensile modulus, and electrical percolation thresholds observed with increasing temperature and AgNP content.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Jixiang Jia, Peng Lin, Qiang Liu
Summary: High molecular weight polyisobutylene (PIB) was modified through a mild and easy melt-mixing process with thermoplastic polyurethane elastomer (TPU) in the presence of a compatibilizer, resulting in a significantly phase-separated morphology. The increase of TPU content led to an evolution from dispersed phase to continuous phase, enhancing the tensile strength of the blend. The blend exhibited improved thermal and oxidative/hydrolytic stability compared to TPU, with the surface chemical composition of the blend being tailored through annealing for enhanced biocompatibility and stability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
Aleksandra Jelic, Aleksandar Marinkovic, Milica Sekulic, Stefan Dikic, Vukasin Ugrinovic, Vladimir Pavlovic, Slavisa Putic
Summary: In this study, halloysite nanotubes (HNT) were modified and incorporated with epoxy resin to prepare nanocomposite materials with enhanced mechanical properties. The use of APTES and two-step modified HNT with DGEBA significantly increased the tensile strength and strain at break of the nanocomposites, improving their mechanical performance.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Mehrad Amirkhosravi, Liang Yue, Tianxiong Ju, Ica Manas-Zloczower
Summary: The study improved the high-temperature mechanical performance of TPU films using a simple annealing process while maintaining strength properties at room temperature. Annealing not only enhanced the creep behavior and storage modulus of the films, but also discussed its effect on structural evolution.
Article
Materials Science, Characterization & Testing
Eyob Wondu, Zelalem Chernet Lule, Jooheon Kim
Summary: This study aims to fabricate a composite material with a high dielectric constant and suitable thermal conductivity, consisting of thermoplastic polyurethane (TPU) and carbon nanotube (CNT)-covered strontium titanate (SrTiO3). The results showed that the dielectric constants of the composites with 40% CNT-covered SrTiO3 were three times higher than the pure TPU matrix. The thermal conductivity was significantly improved by 9 times compared with the pure TPU, while the tensile strength and thermal stability were minimally affected.
Article
Chemistry, Physical
Jianxiang Shen, Xue Li, Ping Li, Baoqing Shentu
Summary: The structural and dynamical properties of TPU/C60 nanocomposites were investigated using atomistic molecular dynamics simulations. Results showed that an increase in C60 weight fraction slightly increased the glass transition temperature, hindered polymer dynamics, and significantly reduced the coefficient of thermal expansion above Tg. The mobility of TPU hard segments was more restricted compared to soft segments due to electrostatic attractions and pi-pi stacking. Analysis of TPU-C60 interaction energy revealed weakened electrostatic interactions and increased van der Waals contributions as C60 weight fraction increased. The translational and rotational diffusion of C60 were both suppressed with increasing C60 weight fraction, indicating a violation of Stokes-Einstein relationships.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Abbas Ghanbari, Marie-Claude Heuzey, Pierre J. Carreau
Summary: A major challenge in the industrialization of polymer-clay nanocomposites at high processing temperatures is the thermal degradation of the matrix induced by the commercial organoclays. This work investigated the use of a styrene-acrylic multi-functional oligomeric chain extender to address the thermal degradation of PET nanocomposites and improve their microstructure. The introduction of the chain extender significantly improved the morphology of the nanocomposites containing Nanomer particles and enhanced their resistance to degradation.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jianxiang Shen, Xue Li, Ping Li, Baoqing Shentu
Summary: This study investigated the thermal properties and interfacial characteristics of thermoplastic polyurethane (TPU) nanocomposites filled with single-walled carbon nanotubes (SWNTs) using molecular dynamics simulations. The introduction of SWNTs was found to suppress TPU chain dynamics and enhance the hydrogen bond formation between TPU chains and SWNTs. Functionalized SWNTs with polar groups showed improved affinity for TPU molecules, leading to reduced polymer mobility and increased glass transition temperature (T-g). The presence of amine groups had the highest potential for hydrogen bonding with TPU chains, resulting in the lowest polymer mobility and the highest T-g. This research provides insights and guidance for the design of polymer nanocomposites and future simulations involving TPUs.
Article
Materials Science, Characterization & Testing
Xiaoying Ji, Feng Gao, Zongze Geng, Dongliang Li
Summary: This study fabricated shape-memory polymeric materials with tunable morphological structures through a bilayer structure design. The bilayers significantly improved shape fixity and shape recovery ratios, optimizing temporary shape fixation and permanent shape recovery. The bilayer structure achieved balanced mechanical performances by maximizing the synergistic effect of two components and providing transparency to the material.
Article
Polymer Science
Phasawat Chaiwutthinan, Naruedee Phutfak, Amnouy Larpkasemsuk
Summary: The addition of TPEE can improve the toughness of PLA, while the additional of BTN can further enhance the mechanical properties and thermal stability of the blends. The presence of an appropriate amount of BTN can result in an exfoliated structure, enhancing the impact strength, tensile strength, and elongation at break.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Shuo Wang, Sen Tang, Chao He, Qingyuan Wang
Summary: The main purpose of this study is to analyze the fatigue failure of thermoplastic polyurethane (TPU) plate under tension-tension load control tests and investigate the change in hydrogen bond content. The results indicate that the S-N curve of TPU material exhibits a declining trend before reaching the fatigue limit, with energy consumption occurring during the cyclic creep process and undergoing three stages of hard segment and soft segment changes. The study also reveals that an increase in fatigue life leads to a decrease in hydrogen bond content and an increase in microphase separation, resulting in fatigue fracture.
Article
Materials Science, Composites
Satyabhama Sahu, Amrita Pritam Sahoo, Lipsa Shubhadarshinee, D. S. Ramakrishna, Aruna Kumar Barick
POLYMER COMPOSITES
(2018)
Article
Polymer Science
Aruna Kumar Barick, Young-Wook Chang
HIGH PERFORMANCE POLYMERS
(2014)
Article
Polymer Science
Aruna Kumar Barick, Ji-Yoen Jung, Myung-Chan Choi, Young-Wook Chang
JOURNAL OF APPLIED POLYMER SCIENCE
(2013)
Article
Polymer Science
Aruna Kumar Barick, Young-Wook Chang
JOURNAL OF APPLIED POLYMER SCIENCE
(2013)
Review
Chemistry, Inorganic & Nuclear
Bigyan R. Jali, Aruna K. Barick, Priyaranjan Mohapatra, Suban K. Sahoo
Summary: This review discusses the development of fluoride ion selective quinones based fluorogenic and chromogenic chemosensors, highlighting their high sensitivity, low-cost, simplicity, and promising analytical features.
JOURNAL OF FLUORINE CHEMISTRY
(2021)
Article
Materials Science, Composites
Lipsa Shubhadarshinee, Bigyan Ranjan Jali, Aruna Kumar Barick, Priyaranjan Mohapatra
Summary: The study synthesized a polyaniline/Ag@GO nanocomposite using an in situ polymerization method, with chemical interactions observed between the Ag@GO hybrid nanofiller and PANI matrix. The nanocomposite showed enhanced thermal stability and dielectric properties due to the synergistic effect of GO, AgNP, and PANI, making it suitable for energy storage devices.
PLASTICS RUBBER AND COMPOSITES
(2022)
Article
Chemistry, Physical
Rubi Behura, Pragyan P. Dash, Patitapaban Mohanty, Sunita Behera, Monalisa Mohanty, Rupam Dinda, Santosh Kumar Behera, Aruna K. Barick, Bigyan R. Jali
Summary: Luminescent chemosensors based on Schiff bases have been extensively studied due to their easy synthesis, enriched photophysical properties, and potential applications in biology and materials science. In this study, a dinitrophenyl-based Schiff base molecular probe (L) was synthesized and characterized for its selective detection of Zn2+. The probe exhibited weak emission in a solvent mixture, but fluorescence was enhanced in the presence of Zn2+, indicating its selective sensing ability.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Multidisciplinary
Shreelata Behera, Lipsa Shubhadarshinee, Pooja Mohapatra, Bigyan Ranjan Jali, Priyaranjan Mohapatra, Aruna Kumar Barick
Summary: The copper quantum dots (Cu QDs) were green synthesized from copper sulfate (CuSO4) using plant leaf extracts of Mangifera indica. The mangiferin present in the leaf extract acted as an effective stabilizing and reducing agent for the synthesis of Cu QDs. The synthesized Cu QDs showed biocompatibility and potential applications in various fields.
JOURNAL OF MOLECULAR AND ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Patitapaban Mohanty, Pragyan P. Dash, S. Naik, Rubi Behura, M. Mishra, H. Sahoo, Suban K. Sahoo, Aruna K. Barick, Bigyan R. Jali
Summary: A thiourea-based fluorescence chemosensor (L) was synthesized and used for selective detection of Hg2+, Ag+, and Au3+ ions in DMSO-H2O solution. The fluorescence intensity of L was enhanced upon addition of the metal ions due to complexation-induced inhibition of the photo-induced electron transfer process. The 1:1 binding stoichiometry between L and the metal ions was determined, and density functional theory calculations were performed to explain the binding modes. The sensor L showed high sensitivity and low detection limits for Hg2+, Ag+, and Au3+ ions, and it was successfully applied in detecting these ions in living cells and soil samples.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
R. Behura, P. Mohanty, G. Sahu, P. P. Dash, S. Behera, R. Dinda, P. R. Hota, H. Sahoo, R. Bhaskaran, A. K. Barick, P. Mohapatra, Bigyan R. Jali
Summary: In pharmacological, environmental, biological, and material research, the design and synthesis of new fluorescence chemosensors based on Schiff base derivatives are crucial. A novel Schiff base compound (L) based on 2,4-dinitrophenyl hydrazine was designed and characterized for the selective detection of Zn2+, Cd2+ and Hg2+ ions. Probe L showed weak fluorescence emission in DMSO-H2O (10:90, v/v) due to isomerization of the C--N bond and photoinduced electron transfer processes, but it exhibited enhanced fluorescence emission upon addition of Zn2+, Cd2+, and Hg2+ ions, making it a unique chemosensor for these ions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Polymer Science
Lipsa Shubhadarshinee, Pooja Mohapatra, Bigyan Ranjan Jali, Aruna Kumar Barick, Priyaranjan Mohapatra
Summary: The recent research paper describes the synthesis of silver nanoparticle-coated functionalized single-walled carbon nanotubes nanocomposites and their enhanced thermal, dielectric, and sensing properties.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Pallishree Sahoo, Lipsa Shubhadarshinee, Bigyan Ranjan Jali, Priyaranjan Mohapatra, Aruna Kumar Barick
Summary: This research focuses on the synthesis and characterization of graphene oxide (GO) and graphene from coal. Various analysis methods were used to investigate the synthesis process, and the results confirm the effectiveness of the proposed methods.
MATERIALS TODAY-PROCEEDINGS
(2022)
Review
Chemistry, Applied
Sunita Behera, Patitapaban Mohanty, Rubi Behura, Bhaskar Nath, Aruna Kumar Barick, Bigyan R. Jali
Summary: Antibacterial resistance poses a significant threat to human health worldwide, necessitating the development of new drugs to combat multidrug-resistant pathogens. Quinolines and their derivatives are known for their antibacterial properties against various gram-positive and negative bacteria. This mini-review focuses on the antibacterial activities of quinoline derivatives against different pathogens in the years 2019 and 2020.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2022)
Review
Chemistry, Applied
Patitapaban Mohanty, Sunita Behera, Rubi Behura, Lipsa Shubhadarshinee, Priyaranjan Mohapatra, Aruna Kumar Barick, Bigyan Ranjan Jali
Summary: This review provides a comprehensive overview of the antibacterial activity of thiazole and its derivatives, highlighting their significance in the pharmaceutical industry. Thiazole and its derivatives show remarkable antimicrobial properties and have potential applications in designing new biological active molecular probes.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2022)
Article
Materials Science, Composites
Sthitapragyan Patnaik, Aruna Kumar Barick, Achyut K. Panda
Summary: The research revealed that Zeolite-A catalyst can significantly reduce the activation energy for the thermal degradation of different waste plastics, with varying catalytic effects depending on the type of plastic. By selecting the appropriate catalyst, energy consumption in the pyrolysis process can be reduced.
PROGRESS IN RUBBER PLASTICS AND RECYCLING TECHNOLOGY
(2021)
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)
