Article
Materials Science, Multidisciplinary
Fernando D. Carazo, Juan J. Pastor Ales, Javier Signorelli, Diego J. Celentano, Carlos M. Guevara, Roberto Lucci
Summary: This paper presents an analysis of the test and simulation of equal channel angular extrusion (ECAE) for a commercial Al 6061-T6 alloy. The results reveal the limitations of analytical models when considering the effects of inner die corner and outer wall curvature on material response.
Article
Materials Science, Multidisciplinary
G. El-Garhy, N. El Mahallawy, M. K. Shoukry
Summary: Cyclic extrusion compression (CEC) is an effective fabrication process for producing fine, ultrafine grains with superior physical and mechanical properties. The CEC process applied on Al alloy 6061 and its SiCp composite resulted in reduction of grain size, porosity, SiC particle size, increase in hardness, decrease in wear rate and slightly reduced coefficient of friction. Notably, significant improvement in wear resistance was observed in the composite samples, especially in Al 6061 10 wt. % SiC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Polymer Science
Qifeng Jiang, Ramdane Boulahia, Fahmi Zairi, Iurii Vozniak, Zhengwei Qu, Jean-Michel Gloaguen, Xiaobing Liu
Summary: Equal channel angular extrusion (ECAE) is used to modify the microstructure and mechanical properties of polypropylene. Different extrusion orientation routes are investigated, and the control and inhibition of plastic instabilities are studied. Structural evolution is characterized using wide-angle X-ray scattering, and the mechanical properties are examined under different loading paths.
Article
Materials Science, Multidisciplinary
Ramdane Boulahia, Fahmi Zairi, Yuri Voznyak, Jean-Michel Gloaguen
Summary: The use of different extrusion routes and back-pressure conditions can alter the crystalline texture and tensile response of polypropylene. Through multiple treatments and the application of back-pressure, the plastic process and saturation state of polypropylene can be influenced, resulting in changes in its mechanical properties.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Abhinav Srivastava, Matthew W. Vaughan, Bilal Mansoor, Wahaz Nasim, Robert E. Barber, Ibrahim Karaman, Karl T. Hartwig
Summary: This study demonstrates the effectiveness of tube equal channel angular extrusion (tECAE) in enhancing mechanical properties through grain refinement and texture control in Mg alloy tubes. The refined grains and increased strength levels achieved after tECAE processing show the potential for improving mechanical properties in other tubular materials as well.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Zachary S. Levin, Michael J. Demkowicz, Karl T. Hartwig
Summary: Processing through route 4Bc at 300 degrees C resulted in the highest compressive strength, lowest anisotropy, and least strain rate sensitivity in metal matrix composites. These superior properties are attributed to mechanical bonding between Cu and Ta phases, as well as enhanced metallurgical bonds from contact of pristine metal surfaces during shearing along orthogonal planes.
Article
Engineering, Civil
Marek Tkocz, Karolina Kowalczyk, Tomasz Bulzak, Magdalena B. Jablonska, Marek Hawryluk
Summary: The material deformation behavior during the DRECE process has been analyzed using FEM simulations. The simulations considered two different channel angles and two processing routes. The results showed significant strain and stress inhomogeneities across the strip thickness, which can be mitigated by choosing a specific processing route. The smaller channel die angle generates larger strain and higher strength of the strip, but reduces its ductility.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Metallurgy & Metallurgical Engineering
A. Rezaei, R. Mahmudi, C. Cayron, R. E. Loge
Summary: This study employed two severe plastic deformation (SPD) techniques, simple shear extrusion (SSE) and equal channel angular pressing (ECAP), to process a magnesium alloy. It was found that the different shear strain paths of the two techniques caused different progression rates of dynamic recrystallization (DRX), resulting in higher recrystallization fractions and high angle grain boundaries (HAGBs) in the ECAP-processed alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Characterization & Testing
Cagatay Elibol
Summary: CuCoNiBe alloys are widely used copper alloys due to their superior mechanical properties. ECAP processing can enhance their strength and accelerate precipitation kinetics, but it also leads to tension-compression asymmetry.
Review
Materials Science, Multidisciplinary
Erhan Baysal, Oguz Kocar, Engin Kocaman, Ugur Koklu
Summary: Research on ultra-fine grain materials has gained attention in recent years, with a focus on improving material properties and decreasing costs. Severe plastic deformation methods have emerged as a good alternative, resulting in materials with grain sizes below 1 μm and positively affecting the mechanical properties.
Article
Chemistry, Physical
Radoslaw Lyszkowski
Summary: This study evaluates the impact of changing the deformation routes of the extrusion process on the structure and properties of a CuZn36 alloy. The improvement of strength properties was obtained as a result of grain fragmentation in the process. The obtained results showed that the mechanical properties of the alloy depend on the number of passes and the material deformation route. The material pressed four times with the rotation of 90 degrees exhibited the highest strength.
Article
Automation & Control Systems
Jairo Alberto Munoz, Mohan Chand, Javier Walter Signorelli, Jessica Calvo, Jose Maria Cabrera
Summary: This study investigates the microstructural evolution, plastic anisotropy, and mechanical behavior of a duplex stainless steel processed by the ECAP technique. The results show that the ECAP processing led to the formation of ultrafine grains with grain sizes smaller than 300 nm in both austenite and ferrite phases. The different strain hardening rates of austenite and ferrite result in plastic instabilities at different strain magnitudes, with austenite providing more hardening while ferrite contributes to ductility. Additionally, crystal plasticity simulations reveal that austenite is more responsible for larger planar anisotropy values compared to ferrite after multiple ECAP passes.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Walaa Abdel-Aziem, Atef Hamada, Takehiko Makino, Mohsen A. Hassan
Summary: The study focused on the micro/meso-forming of commercially pure aluminum AA1070 through 4 deformation passes using ECAP at room temperature. The findings showed that as the number of passes increased, there was a transition from a non-uniform grain structure to a uniform ultrafine-grained structure, resulting in a significant improvement in hardness. Additionally, the micro/meso-scale ECAP was capable of developing a weak texture in the flow plane compared to the starting texture.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
N. M. Krywopusk, L. J. Kecskes, T. P. Weihs
Summary: Processing of 99.9% pure, as-cast magnesium by Equal Channel Angular Extrusion significantly reduces grain size to around 30 μm after the second pass, but grain size varies after the third and fourth passes depending on extrusion rate. Slower rates lead to an increase in grain size after the third and fourth passes, while the fastest rate maintains relatively consistent grain size. The presence of twins in microstructures also varies with extrusion rate.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Adrien Heinzelmeier, Antoine Guitton, Marc Novelli, Wenbo Yu, Thierry Grosdidier
Summary: Ti2AlC and Ti3AlC2 are part of the MAX phases, a family of layered compounds. The study tests a composite approach to improve the brittleness of these compounds. Surface severe plastic deformation (SSPD) was conducted on a bulk MAX compound and a MAX/TiAl2 composite using surface mechanical attrition treatment (SMAT). The presence of intergranular TiAl2 effectively prevented failure in the composite, resulting in a surface hardening gradient extending down to a depth of 250 μm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Automation & Control Systems
Wei Fang, Mingyu Fu, Lianyu Zheng
Summary: This paper introduces a multi-sensor based wearable system for real-time and accurate ergonomics analysis during manual assembly operations. By continuously tracking worker's posture, it can identify potential ergonomic injuries and provide objective indicators for assessing ergonomics.
ASSEMBLY AUTOMATION
(2022)
Article
Chemistry, Applied
Chunjing Su, Zhi Li, Mengqi Mao, Wenhua Ye, Jinping Zhong, Quanming Ren, Hairong Cheng, Haomin Huang, Mingli Fu, Junliang Wu, Yun Hu, Daiqi Ye, Haihong Xu
Summary: This study synthesized Pd/quasi-Ce-BTC catalyst by simple one-step pyrolysis and applied it in the oxidation of toluene, showing excellent catalytic activity. Microscopic analysis revealed the formation of a carbon matrix composite quasi-MOF structure interface. The results demonstrated that the amorphous carbon matrix significantly enhanced the adsorption and activation capacity of toluene in the reaction, creating a reductive system that facilitated the activation and utilization of oxygen. In-situ XPS analysis confirmed the involvement of the carbon matrix in oxygen activation and storage, with Pd0 identified as the crucial active site. Stability and water resistance tests indicated the good stability of Pd/quasi-Ce-BTC. This study provides a potential method for the development of quasi-MOF catalysts for effective VOCs abatement.
JOURNAL OF RARE EARTHS
(2022)
Article
Automation & Control Systems
Mingyu Fu, Lulu Wang
Summary: This paper proposes an event-triggered-based finite-time cooperative path following control scheme for underactuated marine surface vehicles. By utilizing a finite-time extended state observer and a guidance law based on velocity estimation values, cooperative control of multiple paths is achieved.
ASIAN JOURNAL OF CONTROL
(2023)
Article
Environmental Sciences
Minghui Fu, Chuanjiang Liu, Yuting Ma, Liukun Wang
Summary: This study examines the effects of city public service distance on the sense of gain to public health service (SGPHS) of migrant workers. It finds a nonlinear relationship and provides valuable insights for the formulation of rational public service policies.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Engineering, Environmental
Xiaolan Zhang, Yuhao Bi, Minghui Fu, Xinyu Zhang, Bingli Lei, Xin Huang, Zhenzhen Zhao
Summary: The distribution and removal efficiency of organophosphate ester pollutants vary in water sources and treatment facilities. Some of these esters pose limited ecological risks while others may have potential health implications.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Chemistry, Physical
Xuefeng Shi, Xiaomai Chen, Longwen Chen, Jialing Wang, Huanyi Li, Mengqi Mao, Mingli Fu, Daiqi Ye, Zhiguo Jing, Junliang Wu
Summary: Two Ag/CeO2 catalysts were prepared using different methods, and their activity in toluene oxidation with ozone was compared. The results showed that the different loading methods resulted in different interactions between Ag and CeO2, which affected the amount of surface and bulk oxygen vacancy. Surface oxygen vacancy was found to play a key role in the ozone catalytic oxidation of toluene.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Manufacturing
Jun-Yuan Zheng, Hui Liu, Ming-Wang Fu
Summary: In this study, shafted microgears were manufactured using a microforming process. A grain-based modeling approach was used to simulate the forming process and investigate the effects of grain size on forming behavior and process performance. Five deformation zones with different hardness and stress-strain distributions were identified in the microstructures. The undesirable geometries of microgears, such as material unfilling, burr, and inclination, were observed and the inclination size increased with grain size. By redesigning the punch and adding a die insert, the forming quality of the microgears was improved.
ADVANCES IN MANUFACTURING
(2023)
Article
Biochemistry & Molecular Biology
Jiahao Liang, De Wang, Xin Li, Weiwen Huang, Chun Xie, Minghui Fu, Hongmei Zhang, Qiong Meng
Summary: In this study, 47 full-length HbTPS genes were identified in the Hevea brasiliensis genome, and they were divided into five subfamilies based on phylogenetic analysis. HbTPSs were found to participate in cellular components, molecular functions, and biological processes, as well as seven secondary metabolite pathways. They may be regulated by phytohormones, as suggested by the presence of cis-acting elements. RNA-Seq analysis revealed tissue-specific expression patterns of different HbTPSs. These findings contribute to understanding the role and molecular mechanism of HbTPSs and the regulation of terpenoid biosynthesis in H.brasiliensis.
BIOCHEMICAL GENETICS
(2023)
Article
Engineering, Environmental
Wuwan Xiong, Linhui Liu, Anqi Guo, Dongdong Chen, Yulong Shan, Mingli Fu, Junliang Wu, Daiqi Ye, Peirong Chen
Summary: An economical and sustainable approach for synthesizing SSZ-13 zeolites, key materials for reducing nitrogen oxides (NOx) in automotive exhausts and selective methane conversion, has been reported. The approach involves recycling and reusing waste liquids containing the organic structure-directing agent (OSDA). The waste liquid-derived SSZ-13 zeolites show similar properties to conventionally synthesized ones.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Plant Sciences
Y. Li, H. Han, M. Fu, X. Zhou, J. Ye, F. Xu, W. Zhang, Y. Liao, X. Yang
Summary: This study analyzed the characteristics and expression patterns of the NAC transcription factor family in Ginkgo biloba using bioinformatics and quantitative reverse transcription PCR. The results showed that NAC transcription factors play important roles in plant growth and development, as well as in response to abiotic stresses and flavonoid biosynthesis in Ginkgo biloba.
Article
Chemistry, Physical
Bangfen Wang, Xiufeng Li, Yuhai Sun, Hailin Xiao, Mingli Fu, Shuhua Li, Hong Liang, Zhiwei Qiao, Daiqi Ye
Summary: Pt/CeO2 catalysts were modified with non-thermal plasma to enhance the catalytic activity for toluene oxidation. The plasma treatment affected the Pt particle size, CeO2-rod length, oxygen vacancy concentration, and Pt/CeO2 reducibility. The impact of plasma on Pt atoms was more significant than on oxygen vacancies.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Bangfen Wang, Ni Wang, Yuhai Sun, Hailin Xiao, Mingli Fu, Shuhua Li, Hong Liang, Zhiwei Qiao, Daiqi Ye
Summary: This study applied a dielectric barrier discharge plasma to modify the performance of Pt/CeO2 catalyst for toluene oxidation. Different plasma discharge times were used and it was found that discharge time significantly affected the catalytic activity of Pt/CeO2 catalyst. The Pt/CeO2-PT3 (30 min) and Pt/CeO2-PT6 (3 h) catalysts showed improved catalytic activity, while the Pt/CeO2-PT5 (2 h) catalyst exhibited decreased activity due to surface carbon deposition.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Applied
Jingshu Cui, Xiaojun Niu, Dongqing Zhang, Jinling Ma, Xifen Zhu, Xiaoxian Zheng, Zhang Lin, Mingli Fu
Summary: A novel flocculation strategy using chitosan-amphoteric starch (C-A) dual flocculants was proposed for simultaneously removing Microcystis aeruginosa and algal organic matter (AOM), providing new insights for harmful algal bloom control in an efficient, cost-effective and ecologically friendly way.
CARBOHYDRATE POLYMERS
(2023)
Review
Materials Science, Multidisciplinary
Mingming Fu, Yifeng Shen, Hao Zhou, Xiaojia Liu, Wenjun Chen, Xing Ma
Summary: Gallium-based liquid metals have unique properties that have attracted significant interest in the biomedical field. Photothermal therapy has shown great development in antitumor treatment and the photothermal capability of gallium-based liquid metals provides unparalleled advantages. This review presents the major preparation methods of liquid metal micro/nanoparticles, the mechanism of liquid metal photothermal conversion, and discusses the factors affecting the photothermal properties of liquid metals. The biological applications, challenges, and opportunities for the clinical translation of liquid metals in biomedical applications are also discussed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Ling Lin, Shanshan Liu, Zhangwei Chen, Yan Xia, Juanjuan Xie, Mingqiang Fu, Danbo Lu, Yuan Wu, Huali Shen, Pengyuan Yang, Juying Qian
Summary: Dilated cardiomyopathy (DCM) is characterized by left ventricular dilatation and contractile dysfunction, and its molecular mechanisms are not fully understood. This study examined the transcriptome and proteome of healthy and DCM myocardial tissue, identifying dysregulated processes such as extracellular matrix, mitochondrial function, and muscle contraction. Furthermore, a 4-biomarker panel (CTSB, vWF, C9, and MFGE8) was developed for the diagnosis of DCM.
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)
