Article
Materials Science, Multidisciplinary
Lu Shao, Chang Zhang, Caiyu Li, Aitao Tang, Jianguo Liu, Zhengwen Yu, Fusheng Pan
Summary: The research compared the synergy between strength and ductility in magnesium alloys, and found that the low-alloyed Mg-1Mn-1Al alloy achieved a balance between strength and ductility.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Peng Peng, Aitao Tang, Bo Wang, Shibo Zhou, Jia She, Jianyue Zhang, Fusheng Pan
Summary: The addition of manganese in ternary magnesium-based alloys effectively refines grain size, enhances strength, and increases ductility. The presence of ultrafine grains and nanosized precipitates significantly influence the material properties, with recrystallization process being the main mechanism for the formation of ultrafine grains.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Peng Peng, Aitao Tang, Jia She, Jianyue Zhang, Shibo Zhou, Kai Song, Fusheng Pan
Summary: Fabricating bimodal grain structure by adding various Mn contents in Mg alloys is an effective way to improve mechanical properties. Among the alloys studied, Mg-1.0Gd-1.5Mn shows the best mechanical properties, with significantly improved tensile yield stress and ultimate tensile stress. The enhancement in strength is mainly attributed to the bimodal grain structure formed.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Jun Xu, Jun Zhao, Bin Jiang, Xudong Chen, Qingshan Yang, Nan Zhou, Weiwen Zhang, Kaihong Zheng, Fusheng Pan
Summary: In this study, transverse gradient extrusion (TGE) processes with different die inclined angles were used to produce Mg-3Al-1Zn sheets, aiming to tailor their texture and mechanical properties. The microstructure, deformation texture, and final mechanical properties of the obtained sheets were analyzed and discussed. The rheological behavior of Mg alloys during extrusion was also analyzed using the finite element method. The results showed that the TGE die inclined angle influenced the flow velocity and effective strain difference during extrusion, leading to changes in the microstructure and texture of the extruded sheets. Higher TGE die inclined angles resulted in finer grain size and more uniform microstructure. The TGE-45 sheet exhibited a large elongation and low yield stress.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yihao Bao, Liang Chen, Jianwei Tang, Zhigang Li, Guoqun Zhao, Cunsheng Zhang
Summary: In this study, a Mg alloy with alloying elements of Zn, Al, Sn, and Mn was designed, and hot extrusion was carried out at various speeds and temperatures. It was found that high speed extrusion resulted in more second phase particles, while high extrusion temperature increased the number of second phases, grain size, and dynamic recrystallization degree. The sample extruded at a speed of 10 mm/min and temperature of 300 degrees C showed the highest yield strength, tensile strength, and corrosion resistance.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Xinkui Zhang, Liejun Li, Zhi Wang, Hanlin Peng, Songjun Chen, Tao Ban, Jixiang Gao, Zhengwu Peng
Summary: In this study, an Al-La-Mg-Mn alloy with a ultrafine-grained (UFG) structure was fabricated using powder hot-extrusion technique, which exhibited a high-volume fraction of bimodal sub-micron intermetallics. The unique structure suppressed the grain growth and maintained excellent thermal stability, with a slight increase in grain size after thermal exposure. Moreover, the UFG structure showed a remarkable combination of strength and ductility. The UFG structure decorated with bimodally distributed intermetallics presents a promising microstructural design for UFG-structured alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Peng Peng, Jia She, Aitao Tang, Jianyue Zhang, Kai Song, Qingshan Yang, Fusheng Pan
Summary: The study investigated the impact of four different Mn existence types on the microstructure and mechanical properties of an extruded Mg-2.0Zn-1.5Mn magnesium alloy. It was found that each type of Mn existence had varying effects on grain refinement and mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
P. Emadi, B. Andilab, K. Borodianskiy, C. Ravindran
Summary: The use of lightweight alloys, such as magnesium, is crucial for improving fuel efficiency and reducing emissions in automobiles, as well as increasing the range of electric vehicles. This study investigated the effects of SiC nanoparticles on the microstructure and mechanical properties of Mg-Al-Zn-Mn alloy composites. The addition of SiC resulted in significant grain refinement, more uniform phase dispersion, and improved tensile strength, making it a promising material for strengthening light alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Aimin Chu, Yuping Zhao, Rafi Ud-din, Hairong Hu, Qian Zhi, Zerui Wang
Summary: Mg-Al-Ca-Mn alloys with Ca/Al >= 1 were prepared using specific processes to create composites with favorable properties. The presence of the second phase Al2Ca in the alloys was found to be beneficial for enhancing the performance of the alloys.
Article
Chemistry, Physical
Yu-Qing Li, Da-Ye Xu, Min Zha, Dong-Feng Chen, Yun-Tao Liu, Mei-Juan Li, Kai Sun, Gui-Jie Zhu, Si-Qing Wang, Tong Wang, Jian-Bo Gao, Xiao-Long Liu
Summary: The investigation focused on the bulk texture and mechanical properties of wide Mg-Al-Zn alloy sheets with different Al contents. Results showed that with increasing Al content, the intensity of the grain texture weakened, and the recrystallized grains had a more random orientation. This change is attributed to the refined microstructure, precipitates, and weakened basal texture.
Article
Materials Science, Multidisciplinary
Kun Yang, Hucheng Pan, Sen Du, Man Li, Jingren Li, Hongbo Xie, Qiuyan Huang, Huajun Mo, Gaowu Qin
Summary: A novel low-cost Mg-Al-Ca-Zn-Mn-based alloy has been developed to enhance both strength and ductility. The alloy exhibits high yield strength and elongation to failure, attributed to the ultra-fined dynamically recrystallized grains and high-density dislocations and nano-precipitates in the un-DRXed region.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
M. Mansouri Arani, N. S. Ramesh, X. Wang, N. Parson, M. Li, W. J. Poole
Summary: This study quantitatively investigated the strain localization in precipitate free zones (PFZ) of an Al-Mg-Si-Mn alloy using digital image correlation (DIC) and crystal plasticity simulations. The results showed that the thickness of PFZ and the orientation of the grain boundary relative to the loading axis were key factors affecting the level of strain localization.
Article
Metallurgy & Metallurgical Engineering
Ye Wang, Feng Li, Yu Wang, Xing Mao Xiao
Summary: The interactive alternating forward extrusion (AFE) method can change the texture type and weaken the texture strength. The texture evolution of interactive AFE was studied using AZ31 magnesium alloy as an example. The results show that various dynamic recrystallization behaviors can weaken the texture to different degrees, with twinning-induced recrystallization having a particularly significant effect. The formation of a stable fiber texture was observed during the AFE process.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Shiwei Xu, Congcong Zhu, Zhanhong Lin, Chen Jin, S. Kamado, K. Oh-ishi, Yun Qin
Summary: The dynamic microstructure and texture of dilute Mg-0.50Al-0.71Ca-0.33Mn alloy during hot rolling were investigated. The study revealed the important role of extension twins, double twins, and kinks in the formation of rolling texture.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Bing Lu, Yong Li, Yin Wang, Xiaoming Qian, Guangming Xu, Zhaodong Wang
Summary: In this study, the evolution of second-phase particles in a TRC Al-Mg-Si alloy and its influence on recrystallization texture and mechanical anisotropy were analyzed. Homogenization significantly affects particle evolution, which in turn affects the material's anisotropy. The distributions of second-phase particles control recrystallization texture and have a significant impact on mechanical properties.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Liang Wu, Xing-Xing Ding, Xiao-Feng Zhao, Yuan-Huan Liu, Xue-Long Hao, Ai-Tao Tang, Gen Zhang, Fu-Sheng Pan
Summary: In situ-grown Mg-Al layered double hydroxide (LDH) films were obtained on an anodized AZ31 substrate by immersing the sample in different concentrations of Al3+ solution. The structure, composition, and morphology of the LDH films were analyzed, and their corrosion behavior was studied using electrochemical impedance spectroscopy (EIS). The results showed that the interconnected MgAl-LDH nanosheets formed a nest-like structure in the LDH film. LDH obtained in 0.032 mol center dot L-1 Al3+ solution had a dense laminated structure and effectively sealed the porous surface of the anodic oxide film. EIS results demonstrated that the corrosion resistance of the LDH-coated samples was significantly improved compared to the anodized alloy.
Article
Metallurgy & Metallurgical Engineering
Qin Zhang, Yaobo Hu, Jun Wang, Fusheng Pan
Summary: In this work, CuS submicron spheres were synthesized using a low-temperature strategy and applied as a high-performance cathode for rechargeable magnesium batteries (RMBs). The CuS cathodes exhibited fast diffusion kinetics and remarkable storage performance due to the presence of nano needle-like particles on their surface. The investigation of the storage mechanism revealed a two-step conversion reaction controlled by diffusion during the electrochemical reaction process.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Qun Luo, Xingrui Li, Qian Li, Lingyang Yuan, Liming Peng, Fusheng Pan, Wenjiang Ding
Summary: The addition of La element to Al-Si alloy has significant improvement effects, achieving refinement of α-Al grains and modification of eutectic Si simultaneously.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yulong Wu, Liang Wu, Wenhui Yao, Yonghua Chen, Yan Zhou, Linqian Wang, Ting Wu, Bin Jiang, Andrej Atrens, Fusheng Pan
Summary: ZnAl-LDH-NO3 nanosheets were grown on MXene to inhibit its self-aggregation, and then mixed with epoxy resin and spun onto Mg PEO coatings. The resulting ZnAl-LDH-NO3@MXene nanocomposite exhibited long-term dispersibility and satisfactory sealing of the coatings. The synergistic effect between LDH and MXene nanosheets, along with the self-healing function provided by nitrate intercalation, contributed to the low wear rate and corrosion current density of the final coating. This work proposed a new strategy for MXene-based nanocomposites in anticorrosion/wear applications in epoxy coatings.
Article
Engineering, Environmental
Muhammad Rashad, Hugh Geaney
Summary: This study demonstrates the growth of silicon nanowires (Si NWs) using magnesium (Mg) as a catalyst material. The Si NWs grown with Mg show high mass loadings and tight diameter control. They exhibit high initial coulombic efficiencies and high gravimetric and areal capacities as anodes for lithium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Jun Zhao, Yang Liu, Bin Jiang, Yuan Yuan, Jun Xu, Baijun Xiao, Xia He, Ganxin Chen, Ming Yuan, Fusheng Pan
Summary: The effects of adding Zn and Ca to Mg-1Gd alloy on its microstructure and mechanical properties were studied. The results showed the formation of fine and coarse phase particles and a significant refinement of dynamic recrystallized grains. An increase in strength and a decrease in ductility were observed.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Tiantian Wen, Baihua Qu, Shuangshuang Tan, Guangsheng Huang, Jiangfeng Song, Zhongting Wang, Jingfeng Wang, Aitao Tang, Fusheng Pan
Summary: A facile and effective approach to stabilize the magnesium (Mg) metal anode with artificial solid-electrolyte interphase (SEI) layers has been developed in this study. The 3D porous channel structure of the interfacial phytic acid (PA) skeleton regulates ion flux, homogenizes the distribution of Mg2+, and triggers uniform plating/stripping of Mg. This advanced strategy for modulating Mg2+ transport addresses the basic challenges for rechargeable magnesium metal batteries (RMBs).
ENERGY STORAGE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jiang Wang, Yu'an Chen, Fusheng Pan
Summary: The effect of Sn content on the microstructure evolution of Mg-8Zn-2Y-x Sn alloys in as-cast, as-extruded, and as-aged states was systematically studied. The addition of Sn not only refined the grains but also promoted the precipitation of quasicrystal I-phase and Sn3Y5. The phase transformations during solidification were also examined, and after extrusion, the distribution of broken second phase particles (I-phase) in the matrix became more uniform and dense with Sn addition.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yankai Shu, Ziyi Wang, Hong Yang, Xianhua Chen, Jingying Bai, Fusheng Pan
Summary: An optimized method was proposed to identify activated slip directions based on intragranular misorientation axes (IGMA) analysis using electron backscattered diffraction (EBSD) data. The method was successfully applied to determine prismatic and basal slip systems in Mg alloys. The results demonstrated that this method is simpler and more efficient compared to other widely utilized methods.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Lintao Liu, Liping Wei, Jianfei Xiao, Shengwen Bai, Bin Jiang, Chao He, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: Novel turned-bearing extrusions (TBE) are developed to improve the strengths of AZ31 alloy sheets by introducing additional shear strain during preparation. Numerical simulations show that high strain leads to grain refinement through dynamic recrystallization (DRX), but also increases temperature and consumes dislocations. The SC-TBE sheet exhibits finer grains and a higher residual dislocation density compared to the DC-TBE sheet or conventional extrusion (CE) sheet. Overall, these findings provide insights for developing stronger Mg alloy sheets.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Materials Science, Multidisciplinary
Xiu-Fen Ma, Hong-Yi Li, Weiwei Ren, Daibo Gao, Fuyu Chen, Jiang Diao, Bing Xie, Guangsheng Huang, Jingfeng Wang, Fusheng Pan
Summary: Rechargeable magnesium batteries (RMBs) are considered as promising next-generation energy storage devices due to their high safety and low cost. Vanadium-based compounds, with their large family and versatile advantageous structures, are highly competitive as electrode materials for RMBs. This review summarizes the structural characteristics, electrochemical performance, and refinement methods of vanadium-based materials in RMB cathodes, as well as their limited use in RMB anodes. Common strategies to improve the electrochemical performance are discussed, and potential development directions are proposed, including electrode materials, electrolytes, and separator materials. RMBs are expected to play a leading role in the energy storage era.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yuhang Guo, Liping Shao, Runnan Zhang, Wenqing Gao, Shiyao Yu, Yuqian Du, Guangzhaoyao Yang, Fusheng Pan, Tong Li, Zhongyi Jiang
Summary: This study proposed a surface segregation strategy in thermally induced phase separation (TIPS) to achieve in-situ surface modification of poly (4-methyl-1-pentene) (PMP) membranes. Hetero-structured PMP membranes with hydrophilic hemocompatible surface and hydrophobic body were obtained. The hydrophilic surface effectively improved membrane hemocompatibility through hydration layer effect and steric hindrance effect, reduced platelet adhesion significantly, and prolonged coagulation time within the normal physiological range. The membrane exhibited optimal gas permeability and blood oxygenation performance, as well as resistance to plasma leakage for more than two months.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Zhiming Zhang, Hong Wu, Li Cao, Meidi Wang, Hongjian Wang, Fusheng Pan, Zhongyi Jiang
Summary: Graphene oxide (GO) lamellar membranes suffer from low flux and poor stability for practical applications due to tortuous transport pathways and weak interlamellar interactions. In this study, porous vermiculite (PVMT) nanosheets were incorporated into the GO-based membranes to establish fast and robust water-selective pathways. PVMT nanosheets provided in-plane pores, reducing the tortuosity and mass transport distance. The hydrophilicity and interlayer distance were enhanced by PVMT nanosheets, contributing to water-selective transport. The resulting membranes exhibited excellent dehydration performance with increased permeation flux and separation factor compared to pristine GO/PTFE membranes, while maintaining stability for 192 h operation. This study may inspire further research in constructing mass-transfer pathways within lamellar membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Metallurgy & Metallurgical Engineering
Dongmei Pu, Xianhua Chen, Jingfeng Wang, Jun Tan, Jianbo Li, Hong Yang, Bo Feng, Kaihong Zheng, Fusheng Pan
Summary: The ageing behavior of as-extruded Ti-P/VW94 composites was studied. The peak hardness of the composites increased compared to the matrix alloy, with the 5% Ti-P/VW94 composite showing the highest peak hardness of 148.7 HV after aging for about 50 h. However, the hardness increments first decreased and then slightly increased with increasing Ti particle content due to the introduction of high-density dislocations by Ti particles.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yuhan Wang, Junyi Zhao, Sui Zhang, Zhiming Zhang, Ziting Zhu, Meidi Wang, Bohui Lyu, Guangwei He, Fusheng Pan, Zhongyi Jiang
Summary: A two-step method for fabricating COF nanosheets is proposed, involving framework assembly and functional group switching. The fabricated functionalized COF-316 membranes demonstrated excellent separation performance.
MATERIALS HORIZONS
(2023)
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)
