Article
Engineering, Manufacturing
Tanmay, Sudhanshu Sekhar Panda
Summary: In this study, pure copper and aluminum alloy were lap joined using conventional TIG welding, and a successful weld was achieved. Metallurgical properties of the joints were investigated using various methods, with IMCs layers of different thickness formed at different welding parameters. The mechanical properties were tested through tensile shear tests, revealing a comparable load-carrying capacity to other non-conventional welding processes.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Roman Kolenak, Igor Kostolny, Jaromir Drapala, Paulina Babincova, Martin Sahul
Summary: The research aimed to characterize the Zn-Al-Cu soldering alloy and study fluxless ultrasonic soldering of Al7075 aluminum alloy with copper substrate. The Zn-Al-Cu solder has a close-to-eutectic type microstructure and two phase transformations. The shear strength of Zn5Al3Cu solder with copper addition depends on the copper content and reaches 167 to 187 MPa for Al7075 joint and 136.5 MPa for Cu joint.
Article
Nanoscience & Nanotechnology
R. Beygi, R. J. C. Carbas, E. A. S. Marques, A. Q. Barbosa, M. M. Kasaei, L. F. M. da Silva
Summary: This study used Friction Stir Welding (FSW) technique to create a clean and uniform Al/Cu interface and investigated the mechanism of pure brittle fracture. The results showed that multilayered fracture, intergranular fracture, and delamination of the Al/Al2Cu interface were all associated with brittle fracture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Sang-Wook Kim, Kwang-Tae Son, Soong-Keun Hyun
Summary: Porous Cu joints with cylindrical pore aligned in a single direction were successfully joined to Cu substrate using Sn-3.0Ag-0.5Cu solder. The joint strength of porous Cu joints was weaker but had higher ductility compared to non-porous Cu joints, being further enhanced under tensile mode. Additionally, energy absorption ability was improved in porous Cu joints, and the pore structure at joint interface played a role in delaying crack propagation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Zongyu Dang, Guoliang Qin, Tongyi Li
Summary: Replacing copper with aluminum in the refrigeration industry is a common way to reduce production costs and weight. Inertia friction welding was used to join aluminum and copper pipes, and the effects of welding parameters on mechanical properties were studied. The formation of Al-Cu IMCs at the friction interface plays a crucial role in achieving metallurgical bonding. The type and thickness of IMCs are closely related to the tensile strength of the joints.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Electrical & Electronic
Xiaorong Cai, Andrew M. Pham, Marisol Koslowski
Summary: The fracture mechanisms of Cu-Sn intermetallic compounds in solder joints are influenced by microstructure. With prolonged thermal treatment, the Cu3Sn layer transitions from a single stack of grains to a multi-stacked structure, leading to a shift in fracture mechanism from interface failure to intergranular fracture.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Bing Wang, Ping Liu, Xin-Kuan Liu, Zi-Yan Wang, Yan-Yan Wang, Xiao-Hong Chen, Xiao-Zhi Liu
Summary: In this study, the microstructures and mechanical properties of Cu/Al compound materials under different thermal cycle temperatures and times were investigated. The results show that the width of bonding layer and bond strength are significantly affected by thermal cycle temperatures and times, while the variety or quantity of intermediate compounds is scarcely influenced.
Article
Metallurgy & Metallurgical Engineering
Ming Wu, Shan-lin Wang, Li-meng Yin, Yu-hua Chen, Min Hong, Wen-jun Sun, Zong-xiang Yao, Jia-ming Ni, Peng Lu, Ti-ming Zhang, Ji-lin Xie
Summary: The oxidation behavior and kinetics of intermetallic compound (IMC) growth in SAC305/Cu solder joints were investigated using an electromagnetic induction heating device. The results show that rapid thermal shock leads to oxidation of the solder joint, exacerbated by the presence of internal Cu6Sn5 IMC. The growth of Cu6Sn5 layer is controlled by grain boundary diffusion, while Cu3Sn layer growth is controlled by bulk diffusion.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Materials Science, Multidisciplinary
Zezong Zhang, Xiaowu Hu, Wenjing Chen, Sifan Tan, Bin Chen, Jue Wang, Lan Jiang, Yifan Huang, Guangyu Zhu, Yinshui He, Xiongxin Jiang, Qinglin Li
Summary: This study investigates the influence of thermal gradient (TG) on the microstructure, grain orientations, and shear properties of Cu/SAC305/Cu solder joints. The magnitude of TG is controlled by the thickness of the solder layer. The results show that the introduction of TG leads to asymmetric growth of intermetallic compounds (IMCs) and promotes rapid generation of IMCs at the cold end. The shear properties of TG-treated joints are lower than those of isothermally bonded joints, indicating reduced reliability.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Manufacturing
Amin Abdollahzadeh, Behrouz Bagheri, Ali Shamsipur
Summary: A joint of aluminum to copper sheets was successfully achieved by friction stir spot welding with a nanoparticle interlayer. The introduction of nanoparticles improved the microstructure and interface characteristics of the joints. Moreover, the use of nanoparticles decreased the thickness of the intermetallic compound layer in the bond interface and resulted in higher mechanical properties of the welded samples.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Metallurgy & Metallurgical Engineering
Juan Wang, Shuyun Liu, Jing Yuan, Qi Wang
Summary: In this study, WC-Co cemented carbides were successfully brazed with DC53 steel using Cu interlayer, which resulted in improved shear strength and toughness characteristics of the WC-Co/DC53 joint.
WELDING IN THE WORLD
(2023)
Article
Materials Science, Multidisciplinary
Baishan Chen, Yufeng Huang, Siwei Tang, Wensheng Liu, Yunzhu Ma
Summary: The study focuses on improving the reliability of solder joints through the use of ultrasonic-assisted reflow soldering process for Au-20Sn/Au/Ni(P)/Kovar joints. The ultrasonication during reflow enhances wetting and shear strength, breaks primary grains, refines microstructure, and induces the formation of a new intermetallic compound layer, ultimately increasing mechanical properties of the joints.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Z. L. Ni, J. S. Ma, Y. Liu, B. H. Li, X. X. Wang, F. X. Ye
Summary: Ultrasonic spot welding is a process that utilizes high-frequency sliding between metal sheets to generate a solid-state joining. To enhance the T-peel strength and bearing capacity, Cu nanoparticles (NPs) interlayer was screen-printed on the Cu sheet surface. Compared to the Cu/Cu joint, the Cu/Cu NPs/Cu joint showed increased T-peel strength, enhanced displacement, improved fracture energy, and maintained high T-peel load-bearing capacity. The failure mode also changed from brittle and quasi-cleavage to micro-void coalescence.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Y. Ikeda, J. Mancias, B. Gan, R. Maass
Summary: The study demonstrates that lamellar eutectics in intermetallics exhibit plastic shear when the lamella spacing is small enough. Room-temperature shear deformation is achieved in a two-phase CuAl2-CuAl intermetallic nano-composite, revealing the presence of a phase with 3-fold symmetry after deformation.
SCRIPTA MATERIALIA
(2021)
Article
Crystallography
Jiachen Xu, Yucan Fu, Xiaoxiao Zhou, Junqian Zhang, Songbai Xue
Summary: This study investigated the effects of high-temperature aging on the microstructure and mechanical properties of SnPbSb/Cu solder joints. It was found that high-temperature aging led to coarsening of the Sn-rich phase and Pb-rich phase in the solder, as well as changes in the structure of the interfacial intermetallic compound layer. High-temperature aging also significantly deteriorated the mechanical properties of the solder joints.
Article
Materials Science, Multidisciplinary
Jiankang Huang, Yulong Liu, Xiaoquan Yu, Yanqing Huang, Guangyin Liu, Zhongli Huang, Ding Fan
Summary: The molecular dynamics simulation was used to analyze nanoindentation of FCC single crystal copper with different crystal orientations under Berkovich indenter. Crystal orientation significantly influences load distribution, defect formation, slip processes, and dislocation density. Different orientations exhibit variations in hardness and dislocation morphology during indentation.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Metallurgy & Metallurgical Engineering
Jiankang Huang, Zhuoxuan Li, Shurong Yu, Xiaoquan Yu, Ding Fan
Summary: This study used X-ray and VOF method to investigate the flow behavior of the molten pool in the WAAM process, revealing that controlling different wire feeding speeds can observe different droplet transfer modes. A 3D model of the molten pool was established, and it was found that the maximum flow velocity occurs within the plasma arc force action area.
WELDING IN THE WORLD
(2022)
Article
Chemistry, Physical
Xiaoquan Yu, Jiankang Huang, Tao Yang, Ding Fan
Summary: In this work, the microstructure and growth behavior of Al-Fe intermetallic compounds (IMCs) at the interface of a steel-aluminum joint were successfully analyzed using a combination of experimental data and a physical model. The study found that the thickness of the IMCs layer increases with heat input, with Fe2Al5 being the main compound in the layer. The addition of Si element influences the diffusion path of Al atoms and the interface morphology.
Article
Materials Science, Multidisciplinary
Zhongli Huang, Jiankang Huang, Xiaoquan Yu, Guangyin Liu, Ding Fan
Summary: By using DP-MIG-based WAAM, 2319 aluminum alloy components were fabricated with different pulse frequencies, resulting in improved tensile properties and microstructure, enhancing the material's strength and ductility.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Hao Fan, Peng Zhou, Jie Li, Jiankang Huang, Yu Ni, Yuanyuan Hui
Summary: This study investigates the effects of laser-TIG hybrid welding on the weld formation, microstructure, and mechanical properties of TC4 titanium alloy. The results show that an increase in current can improve the welding quality, eliminate pores, and result in finer grains. The laser zone contains more alpha ' martensite and less beta phase, leading to higher hardness and better hardness uniformity.
Article
Chemistry, Physical
Xueping Song, Jinke Niu, Jiankang Huang, Ding Fan, Shurong Yu, Yuanjun Ma, Xiaoquan Yu
Summary: The study used ER2319 and B4C powder as feedstocks and additives, respectively, to fabricate 2319 aluminum alloy using a wire arc additive manufacturing (WAAM) system based on double-pulse melting electrode inert gas shielded welding (DP-MIG). The addition of B4C effectively reduced the grain size and improved the mechanical properties of the deposited layer area. The strengthening mechanism of B4C on the mechanical properties of aluminum alloy additive manufacturing mainly includes dispersion strengthening and fine grain strengthening.
Article
Materials Science, Multidisciplinary
Xueping Song, Zhuoxuan Li, Jiankang Huang, Ding Fan, Shurong Yu
Summary: This paper analyses the droplet transfer mode and arc swing in the TIG + AC twin-wire cross-arc additive manufacturing. It reveals the factors influencing the quality and stability of T-WAAM deposition shaping. The experiments show that different droplet transfer modes result in different deposition qualities and the frequent extinguishment and ignition of the arc between electrode wires is the main factor for instability in the manufacturing process.
Article
Materials Science, Multidisciplinary
Yinglong Zhang, Tianxiang Zhao, Xiaoquan Yu, Jiankang Huang
Summary: The formation of intermetallic compounds (IMC) at the Al/Fe interface is crucial for the mechanical property of steel-aluminum welded joint. The study investigates the effect of welding parameters on the interfacial IMC and simulates the diffusion process of Al and Fe atoms using molecular dynamics method (MD). The results show that the interfacial IMC are distributed in a laminar pattern, mainly composed of Fe2Al5, and the diffusion mechanisms involve vacancy and interstitial diffusion.
Article
Materials Science, Multidisciplinary
Yan Li, Jiankang Huang, Nan Yang, Ding Fan, Xiaoquan Yu, Huan Zhuang
Summary: In this study, 1060 pure aluminum was joined to T2 copper by plasma arc welding with added nanoparticles, and the welded joint was treated with direct current. The interface structure and the evolution mechanism of the intermetallic compound (IMC) at the joint under DC electric field were studied. The results showed that electron wind, temperature gradient, and concentration gradient promoted the migration of Al and Cu atoms, and the joint temperature increase during welding process promoted atomic reaction. The thickness of the IMC layer at the joint interface increased with the duration of current loading, and nanoparticles were aggregated into large-sized grains in the Al-Cu eutectic zone.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Wenzhe Zhang, Jiankang Huang, Yanqin Huang, Xiaoquan Yu, Ding Fan
Summary: The crystallization behavior of the amorphous alloy/crystalline metal welding interface is studied by pulsed laser butt welding method on Zr-based amorphous alloy and copper crystals. The results show the appearance of Zr2Cu and Zr2Ni crystal phases at the interface and the formation of a Cu rich region on the amorphous side. The diffusion of Zr, Ni, Ti to the Cu side leads to the formation of ZrO2, TiO2, CuO oxides on the sample's surface, causing changes in the voltage potential at the interface.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Shuai Cao, Guangyin Liu, Jiankang Huang, Xiaoquan Yu, Yiming Luo, Ding Fan
Summary: Amorphous alloys exhibit unique physical and chemical properties due to their atomic stacking structure and possess interesting mechanical properties. However, partial crystallization can affect the properties of amorphous alloys. Molecular dynamics simulations were used to study the crystallization phenomenon in Zr-based amorphous alloys. The results showed that adding more copper atoms improves the stability of Zr-Cu amorphous system at high temperatures. The crystallization of the amorphous material is caused by the short-range diffusion of atoms.
Article
Materials Science, Multidisciplinary
Yuhang Xie, Jiankang Huang, Jianhui Su, Yiming Luo, Hao Du, Ding Fan
Summary: Cu/Ti dissimilar metal welding components have significant potential applications in aerospace, nuclear industries, and other fields. The addition of a nickel intermediate layer improves the strength and ductility of the joint, preventing the formation of brittle phases and resulting in a stronger connection between titanium and copper.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Xingchang Tang, Ganghu Cheng, Yajun Liu, Canglong Wang, Zhaocang Meng, Yinlong Wang, Yiwen Liu, Zhijian Zhang, Jiankang Huang, Xiaoquan Yu, Xueming Xu
Summary: This study investigates the evolution of microstructure, mechanical properties, and electrical conductivity of low-carbon steel under different annealing conditions using experimental and first-principles calculation methods. The results show that annealing temperature affects the morphology of ferrite grains, resulting in changes in strength, elongation, and conductivity. First-principles calculations provide insights into the underlying mechanisms of these changes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Shuai Cao, Guangyin Liu, Jiankang Huang, Xiaoquan Yu, Ding Fan, Yu Ni, Yiming Luo
Summary: Iron-based amorphous alloys have attracted significant attention due to their soft magnetic property. This study explores the influence of annealing temperature and alloy composition on the formation of nanocrystals in these alloys using molecular dynamics simulations. Various characterization techniques are applied to analyze the resulting amorphous structures. The results indicate that the Fe78Si15B7 amorphous alloy exhibits a higher tendency to adopt the standard icosahedral structure and the percentage of icosahedral formation during annealing has a nonlinear relationship with temperature. Furthermore, the proportions of both icosahedral and standard icosahedral structures increase with extended annealing time.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Computer Science, Information Systems
Ande Hu, Lijian Wu, Jiankang Huang, Ding Fan, Zhenya Xu
Summary: In this paper, methods such as image processing, ELU activation function, and improved pooling model are proposed to address the challenges in weld defect detection image recognition using convolutional neural network (CNN). The experiments show that these methods can effectively improve the accuracy and convergence speed of weld image recognition.
MULTIMEDIA TOOLS AND APPLICATIONS
(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)
