Article
Nanoscience & Nanotechnology
Wentao Hou, Zhikang Shen, Nazmul Huda, Mazin Oheil, Yifu Shen, Hamid Jahed, Adrian P. Gerlich
Summary: The introduction of a cold sprayed Ni interlayer on the copper surface before friction stir butt welding of Al alloy to Cu can suppress the formation of IMCs, resulting in the generation of a single Al3Ni2 layer at the joint interface. This leads to an increase in both the tensile strength and ductility of the joint.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Sachin Kumar, Chuansong Wu
Summary: The addition of a Ni interlayer between Mg and Al plates significantly improves the strength and quality of Al/Mg joints by eliminating common intermetallic compounds. The Ni interlayered joints show improvements in microstructure and mechanical properties, making them potentially suitable for industrial applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Anna Zykova, Andrey Chumaevskii, Anastasia Gusarova, Denis Gurianov, Tatiana Kalashnikova, Nickolai Savchenko, Evgeny Kolubaev, Sergei Tarasov
Summary: Different friction stir processing was carried out on CuZn37/AA5056 to study the structural and phase evolution of the friction stir zone. The main diffusion reaction was the formation of 5-10 µm intermetallic compounds between copper and aluminum. When solidified, Zn-enriched zones represented by different phases were formed, and eutectic Zn+MgZn was undoubtedly formed in the melt after stirring had stopped, leading to weaker zones in terms of pull-off test. The tensile strength of the stirred zone metal was achieved at the level of that of AA5056.
Article
Crystallography
Essam R. Mahmoud, Sohaib Z. Khan, Abdulrahman Aljabri, Hamad Almohamadi, Mohamed Abdelghany Elkotb, Mohamed A. Gepreel, Saad Ebied
Summary: In this study, pure aluminum and low-carbon steel alloy were successfully clad using friction stir processing, resulting in a sound interface without intermetallic compound formation. Increasing the rotation speed and tool pin length contributed to interface bonding and enhanced hardness.
Article
Chemistry, Physical
Abhishek Sharma, Yoshiaki Morisada, Hidetoshi Fujii
Summary: This study investigates the through-thickness microstructural evolution, particle dispersion, and mechanical properties of the Al-Fe alloy system fabricated via friction stir alloying. It is found that the distribution of Fe and Al13Fe4 IMC particles shows inhomogeneity across the thickness of the fabricated alloy. The middle section of the alloy exhibits the best particle dispersion, fine grain size, and improved mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Mehran Karimi Estahbanati, Mojtaba Movahedi
Summary: An Al1050/(Fe-Cu) hybrid surface composite was fabricated using friction stir processing (FSP). The weight fraction ratio of Fe and Cu powders in the composite and the process pass number were found to have significant effects on the wear performance and microstructural features of the composite. The non-uniform distribution of micron-sized and sub-micron particles played a key role in the formation of the bi-modal grain structure, resulting in improved wear resistance and reduced friction coefficient of the composites.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Michael Regev, Stefano Spigarelli
Summary: Friction stir processing can produce materials with very fine grains, but the differences between the advancing side and the retreating side result in an uneven stir zone. Processing the material from both sides helps eliminate this difference, although the mechanical properties of the processed material are inferior to the parent material despite grain refinement.
Article
Materials Science, Multidisciplinary
Qing Jiang, Jin Yang, Rui Xiao, Min Zheng, Jiawei Jiang, Jing Xue, Wenhu Xu, Jiayi Xu, Hua Zhang
Summary: In this study, laser spot welding technology was used for the first time to join low carbon steel and AA5052 aluminum alloy using a FeCoNiCrMn equimolar high entropy alloys (HEAs) interlayer. The addition of the HEA interlayer promoted the formation of a Fe-rich Fe-Al IMC with reduced brittleness and hardness. As a result, the joint fracture load increased from 963 N to 1473 N and the displacement dramatically increased from 0.66 mm to 3.32 mm. Another contributing factor to the outstanding ductility of the dissimilar laser joint was the formation of a conical fusion zone, which enabled both metallurgical bonding and mechanical interlocking at the interface.
Article
Chemistry, Physical
Abhishek Sharma, Yoshiaki Morisada, Kohsaku Ushioda, Hidetoshi Fujii
Summary: An Al-Fe alloy with nanosized Al13Fe4 phase was heat treated under different time-temperature conditions. The spheroidization and growth of the Al13Fe4 phase occurred during annealing, resulting in improved ultimate tensile strength. The grain size was minimally affected by the annealing time and temperature due to grain boundary pinning by the nanometric-sized IMC phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Tifang Huang, Zeyu Zhang, Jinglin Liu, Sihao Chen, Yuming Xie, Xiangchen Meng, Yongxian Huang, Long Wan
Summary: Submerged friction stir welding (SFSW) can decrease the peak temperature and control the thermal gradient of the joint, leading to improvements in weld formation and reduction of intermetallic compounds (IMCs) layer thickness. Compared with conventional friction stir welding (FSW), the thermal accumulation during SFSW process inhibits IMCs formation and enables the formation of a strong mechanical interlocking structure, resulting in increased effective contact area and strength of the joint.
Article
Engineering, Manufacturing
Abhishek Sharma, Yoshiaki Morisada, Hidetoshi Fujii
Summary: In this study, the Al-Fe alloy system was developed using the solid-state friction stir alloying technique, resulting in the formation of nano-sized hard Al13Fe4 intermetallic phase and grain size reduction through dynamic recrystallization mechanism. The hardness and ultimate tensile strength of the alloy increased by 14% and 30% respectively after 4 passes compared to 1 pass. The precipitation hardening mechanism was found to be dominant in strengthening the Al-Fe alloy system.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Haining Yao, Ke Chen, Katsuyoshi Kondoh, Xianping Dong, Min Wang, Xueming Hua, Aidang Shan
Summary: This study investigates the microstructure and mechanical properties of the dissimilar joint between high entropy alloys and Al alloy. A nanoscale interfacial layer was found at the interface, and microsegregation of elements was observed in this layer. The study suggests that high interfacial metallurgical bonding was achieved in the joint.
MATERIALS & DESIGN
(2022)
Article
Engineering, Chemical
Pradeep Kumar Mouria, Ranganath M. Singari, Reeta Wattal
Summary: This study investigated the effect of rotation tool speed (RTS) on the dissimilar friction stir welding (FSW) of AA2024 and AZ91D, and found that the optimal welding parameters were a traverse speed (TS) of 35 mm/min and an RTS of 700 r/min. The presence of intermetallic compounds (IMCs), specifically Al3Mg2 and Al12Mg17, was observed in all joints, with Al12Mg17 showing a tendency to migrate towards the weld surface adjacent to the AZ91D plate. It was also found that improper selection of processing parameters, particularly using lower RTS and TS, led to the formation of dense layers of IMCs within the stir zone (SZ), resulting in a decrease in the ultimate tensile strength (UTS) of the FSWed joints.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Moslem Paidar, Mahyuddin K. M. Nasution, Sadok Mehrez, Dmitry Bokov, Vaira Vignesh Ramalingam, Azlan Mohd Zain
Summary: The study demonstrated that utilizing Zn as an interlayer in the FSSEB process between AA5083-H112 and brass sheets significantly decreased detrimental intermetallic compounds at the interface, resulting in defect-free welds and outstanding tensile/shear strength. Overall, the FSSEB process improved the mechanical intermixing/interlocking features of the base alloys and microstructure of the brazed layers at the joint interface.
Article
Materials Science, Multidisciplinary
Behrouz Bagheri, Mahmoud Abbasi, Farzaneh Sharifi, Amin Abdollahzadeh
Summary: Friction stir vibration brazing (FSVB) is a modified version of friction stir brazing (FSB) used for steel joint fabrication. FSVB improves the coherency of joint interface and reduces grain size. Increase in rotational speed enhances mechanical properties up to a certain limit, beyond which it has detrimental effects.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Metallurgy & Metallurgical Engineering
Isaac Dinaharan, Shuai Zhang, Gaoqiang Chen, Qingyu Shi
Summary: Ti-6Al-4V particle reinforced AZ31 MMCs were produced through friction stir processing, resulting in improved ductility and deformation characteristics. The Ti-6Al-4V particles were uniformly distributed in the material with a strong interface. The composite exhibited refined grains and dense dislocations. The Ti-6Al-4V particles enhanced the tensile behavior and prevented brittle failure.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Physics, Multidisciplinary
Sheng-Hao Jia, Yu-Xia Li, Qing-Yu Shi, Xia Huang
Summary: A novel memristor-based multi-scroll hyperchaotic system is proposed, and a new method for generating multi-scroll hyperchaotic attractors using a voltage-controlled memristor and a modulating sine nonlinear function is introduced. Experimental results show that the system can generate multiple coexisting hyperchaotic attractors with different topological structures.
Article
Immunology
Siquan Shen, Xiangning Huang, Qingyu Shi, Yan Guo, Yang Yang, Dandan Yin, Xun Zhou, Li Ding, Renru Han, Hua Yu, Fupin Hu
Summary: This study reports the first case of a P. rettgeri strain co-harboring bla(NDM-1), bla(VIM-1), and bla(OXA-10). The occurrence of this strain needs to be closely monitored.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2022)
Letter
Microbiology
Siquan Shen, Qingyu Shi, Renru Han, Yan Guo, Yang Yang, Shi Wu, Dandan Yin, Fupin Hu
MICROBIOLOGY SPECTRUM
(2022)
Article
Chemistry, Applied
Song Wu, Qiuxia Peng, Yueting Deng, Qingyu Shi, Jiajun Ma, Yawen Huang, Junxiao Yang
Summary: In this study, a novel BCB-functionalized monomer DCPDNO-BCB was successfully synthesized, and poly(DCPDNO-BCB) with excellent performance was obtained. The polymer showed low dielectric properties, low water absorption, high thermal stability, and good film flatness.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Mengran Zhou, Gaoqiang Chen, Jianjun Wu, Qu Liu, Bingwang Lei, Yunxi Gao, Yijun Liu, Shuai Zhang, Qingyu Shi
Summary: A novel Fe/Cu interface with excellent mechanical properties was successfully fabricated using friction stir welding, which eliminated defects commonly found in conventional bead welding and improved the performance of the Cu/Fe interface formed by fusion welding.
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING
(2022)
Article
Chemistry, Multidisciplinary
Qingyu Shi, Qiuxia Peng, Song Wu, Quan Long, Yueting Deng, Yawen Huang, Jiajun Ma, Junxiao Yang
Summary: In this study, a benzocyclobutene (BCB) monomer containing carbosilane (CS-BCB) was synthesized successfully using hydrosilylation in the presence of Karstedt's catalyst. The resultant cured CS-BCB resin showed excellent thermal and dielectric properties, making it a promising high-performance electronic interlayer material.
Article
Microbiology
Qingyu Shi, Renru Han, Yan Guo, Yang Yang, Shi Wu, Li Ding, Rong Zhang, Dandan Yin, Fupin Hu
Summary: Carbapenem-resistant K. pneumoniae, classified as the most urgent threat by the World Health Organization, poses a critical public health concern due to its high mortality rate. The rapid mutation of the bla(KPC) gene during anti-infective therapy has presented unexpected challenges for diagnostic laboratories and clinical practice.
MICROBIOLOGY SPECTRUM
(2022)
Article
Materials Science, Multidisciplinary
Jayashree Das, P. Sreedharan Robi, Prakash Kumar Sahu
Summary: This research explores the influence of process parameters on the mechanical and metallurgical qualities of aerospace grade 5052 aluminium alloy. The research findings indicate that intermediate process parameters can enhance mechanical qualities, and the square pin tool geometry yields the highest ultimate tensile strength. The best combination of process parameters produces defect-free joints with excellent mechanical characteristics and finer grain compared to the base material.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Jayashree Das, P. Sreedharan Robi, Prakash Kumar Sahu
Summary: This research investigates the influence of process parameters on the mechanical and metallurgical qualities of aerospace-grade 5052 aluminium alloy. The intermediate extent of process parameters shows improved mechanical qualities compared to lower and higher regimes. Square pin (SQ) tool geometry yields the highest ultimate tensile strength. A combination of 24 mm shoulder diameter SQ pin tool geometry, rotational speed of 1000 rev/min, and welding speed of 40 mm/min produces defect-free joint with excellent mechanical characteristics. Microstructural analysis reveals finer grain compared to base material, enhancing mechanical attributes. Fractography detects the presence of ductile fracture in the welded specimen. The effects of individual process parameters on various properties are presented in this research article.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Shiliang Gong, Gaoqiang Chen, Songtao Qu, Xun Xu, Vichea Duk, Qingyu Shi, Gong Zhang
Summary: This study investigates the microstructure evolution and mechanical properties of Sn-Zn solder paste joints on Cu substrates with aging treatment, which are under various conditions of different paste thicknesses and reflow times. The results show that the intermetallic compounds (IMC) of Sn-Zn/Cu solder joints gradually thicken during aging, leading to the formation of interface voids and coarsened crystal structure, which are identified as the main factor for joint failure. The joints with the initial 3.5 μm thickness IMC layers exhibit high shear strength above 45 MPa, indicating satisfactory reliability.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Gaoqiang Chen, Huijie Liu, Qingyu Shi
Summary: This study proposes a computational methodology for predicting material bonding defects during friction stir welding (FSW) by evaluating the in-process thermal-mechanical condition. Several modeling methods are integrated to predict the defects, and the performance of the computational analysis is demonstrated using FSW of AA2024 as an example. It is found that the dynamic sticking (DS) model can predict the geometry of the rotating flow zone, and the butting interface tracking (BIT) analysis shows a significant orientation change that affects the bonding pressure. The interfacial temperature and pressure are analyzed for their roles in material bonding. Four bonding-quality indexes are tested to quantify the thermal-mechanical condition and determine the critical value for successful solid-state bonding (SSB).
Article
Chemistry, Physical
Gaoqiang Chen, Xin Liu, Junnan Qiao, Tianxiang Tang, Hua Zhang, Songling Xing, Gong Zhang, Qingyu Shi
Summary: This communication paper introduces an analytical model for thermal softening of aluminum alloys from room temperature to solidus temperature, showing favorable comparison with established models. The constants of the proposed model for nine typical engineering commercial aluminum alloys are presented in the study.
Review
Microbiology
Li Ding, Siquan Shen, Jing Chen, Zhen Tian, Qingyu Shi, Renru Han, Yan Guo, Fupin Hu
Summary: KPC variants pose a growing resistance to carbapenem antibiotics, posing challenges to the treatment of Enterobacterales infections. Over 150 KPC variants have been reported worldwide, with most new variants discovered in the past few years. Currently, there are no clear guidelines for the diagnosis and treatment of infections caused by KPC variants. The effectiveness of new antibiotic combinations on KPC variants remains poorly discussed.
CLINICAL MICROBIOLOGY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Zhuoran Zeng, Mengran Zhou, Marco Esmaily, Yuman Zhu, Sanjay Choudhary, James C. Griffith, Jisheng Ma, Yvonne Hora, Yu Chen, Alessio Gullino, Qingyu Shi, Hidetoshi Fujii, Nick Birbilis
Summary: In this study, a durable dual-phase Mg-Li-Al alloy with low electrochemical degradation rate and high specific strength is successfully designed by a special processing method. The success is attributed to the microstructure and surface layer characteristics of the alloy.
COMMUNICATIONS MATERIALS
(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)