Article
Chemistry, Physical
Siqi Liu, Han Ma, Zhenghua Huang, Zhongming Zhang, Chunjie Xu, Xiao Li, Feng Chen, Zhiqiao Yan, Fengyu Kong, Anding Wang, Zhixiang Liu
Summary: The Mg-8Gd-4Y-1Zn-0.5Al alloy prepared by metal type casting was subjected to rolling or extrusion-rolling to obtain sheets, followed by aging treatment. The microstructures and mechanical properties of the sheets were analyzed. The optimal process was determined to be rolling at 793 K with a deformation of 70%, resulting in a sheet with fully dynamic recrystallized grains and strong basal texture. After aging treatment, the sheet exhibited good mechanical properties. The extruded sheets showed grain growth and texture change after rolling at 793 K with a 50% deformation. The 18R-LPSO structures in the sheets affected the mechanical properties. Anisotropy was observed in the mechanical properties of the extrusion-rolled sheet.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
L. Zhang, H. Huang, S. J. Zhang, X. R. Liu
Summary: The study investigated the microstructure, mechanical properties, and tribological behavior of as-cast Mg-Y-Cu alloys. Results showed that increasing Y and Cu contents improved the tensile strength and hardness, while the friction coefficient and wear rate varied with the alloy compositions. Mg(95.5)Y(3)Cu(1.5) alloy exhibited the lowest friction coefficient and the best wear resistance.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Li Zhao, Jianqiang Hao, Cuirong Liu, Zhisheng Wu, Jinshan Zhang, Hongxia Wang, Weili Cheng
Summary: By adding an appropriate amount of B4C, the Mg94Zn2.5Y2.5Mn1 alloy showed refined grains, promotion of LPSO phase formation, inhibition of W phase generation, and significant improvement in mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Hao Li, Hong-mei Chen, Xu Zhang, Qian-hao Zang, Jing Zhang, Di Feng, Yan-xin Qiao, Yu-hang Guo
Summary: The solidification methods of electromagnetic stirring and non-electromagnetic stirring were used to prepare Mg-6Gd-3Y-xZn-0.6Zr alloys, and the effects of different Zn contents on the alloy microstructure and properties were analyzed. It was found that electromagnetic stirring resulted in a more uniform alloy structure, leading to improved hardness and elongation.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Michiaki Yamasaki, Tsuyoshi Mayama, Tsubasa Matsumoto, Koji Hagihara, Daria Drozdenko, Yoshihito Kawamura
Summary: The dislocation configuration around the 0001 0001 a 0001 a a slip system was successfully reproduced through crystal plasticity finite element analysis. Despite the formation of kink bands stimulated by the prismatic slip system, geometrical softening should be significant.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Review
Metallurgy & Metallurgical Engineering
Yujin Nie, Jianwei Dai, Xuan Li, Xiaobo Zhang
Summary: Corrosion is a major drawback for the wide applications of Mg alloys, with attention being drawn to the corrosion behaviors of alloys with stacking fault or long period stacking ordered structures. However, the corrosion mechanisms of these alloys remain unclear, calling for further research and improvement.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Lei Zhang, Shuaijie Zhang, Kangxin Ouyang, Yihuan Zhou, H. Huang, Pian Xu
Summary: The microstructure and mechanical properties of as-cast Mg-Er-Cu, Mg-Er-Ni, and Mg-Er-Zn alloys prepared by conventional ingot metallurgy have been studied. The 18R long period stacking ordered (LPSO) phases in all three alloys solidify directly from the melt. Differences exist in the tensile strength and ductility among the three alloys.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Qilu Ye, Bin Yang, Jiqing Zhao, Gang Yang, Zhihua Gong, Li Zhang
Summary: By adding Mo, Nb, Hf, and C elements to form multiple carbides in the AlCoCrFeNi2.1 alloy, and utilizing the nano-scale phase formed during annealing to strengthen the alloy, the tensile strength of the alloy was successfully increased while maintaining ductility.
Article
Materials Science, Multidisciplinary
Ning Su, Qingchen Deng, Yujuan Wu, Liming Peng, Kun Yang, Qiang Chen
Summary: This paper investigates the dissolution, refinement, and re-precipitation of LPSO structure/SFs in an Mg-Gd-Zn-Mn alloy through hot extrusion. The results suggest that refinement is dominated by the misalignment and re-dissolution mechanisms, with dislocation slips and rapid solute atom diffusion playing key roles. The evolution model of LPSO structure/SFs during continuous dynamic recrystallization is proposed based on the findings.
MATERIALS CHARACTERIZATION
(2021)
Article
Metallurgy & Metallurgical Engineering
Sangwon Lee, Yejun Park, Jongbin Go, Young Mok Kim, Seok Su Sohn, Jiehua Li, Pyuck-Pa Choi
Summary: In this study, the evolution of LPSO phases in the as-cast Mg-6Gd-1Zn-0.6Zr alloy was investigated using TEM and APT. Two types of LPSO phases were formed, and their compositions were analyzed. The influence of LPSO phases on deformation behavior was also studied.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Nanoscience & Nanotechnology
Quan Li, Jian Song, Yiwen Chen, Qi Zhang, Qingchun Zhu, Yue Liu, Jian Wang, Xiaoqin Zeng
Summary: Long-period stacking ordered (LPSO) phases effectively enhance the strength of Mg alloys by inhibiting the motion of non-basal dislocations and deformation twins. It was previously believed that LPSO phases do not affect the motion of basal dislocations. However, through in-situ TEM nanoindentation testing in a Mg97Y2Zn alloy, it was observed that the activity of basal dislocations is significantly reduced between LPSO phases with spacing less than 20 nm. Atomic HADDF-STEM results also revealed a high concentration of solute atoms near LPSO phases, which could contribute to strong solute strengthening. These findings have potential implications for the design of ultra-high strength Mg alloys containing nano-spaced LPSO phases.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Guoming Zheng, Bin Tang, Wei Chen, Songkuan Zhao, Yizhen Xie, Xiaofei Chen, Jinshan Li, Lei Zhu
Summary: This study reveals that the plastic deformation mechanism of lamellar microstructure in TNM alloy changes from stacking faults to long-period stacking ordering with a slight increase in lamellar spacing. Multiple LPSO bands significantly enhance the work hardening response and trigger the TRIP effect, resulting in four times higher ductility than SF-deformed LM at 750°C without compromising yield strength. This finding provides novel insights into the development of high-performance TiAl alloys with extremely nano-LM at elevated temperatures.
MATERIALS RESEARCH LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
Meichen Liang, Hao Zhang, Lifeng Zhang, Peng Xue, Dingrui Ni, Weizhen Wang, Zongyi Ma, Hengqiang Ye, Zhiqing Yang
Summary: Microstructural evolution of Mg-based alloys during severe plastic deformation and mixing via friction stir welding was studied. The formation of a laminated onion-ring structure with significantly refined microstructures was observed in the stirred zone, leading to improved ultimate tensile strength and elongation to failure.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Qianqian Jin, Xiaohong Shao, Shijian Zheng, Yangtao Zhou, Bo Zhang, Xiuliang Ma
Summary: Understanding the interface structure between strengthening precipitates and matrix in alloys at the atomic level is crucial for tailoring the mechanical properties. High-resolution scanning transmission electron microscopy was used to study the semi-coherent interfaces in Mg-Zn-Y alloys, revealing unique features such as Shockley partial dislocations and dissociated structures. The interaction between dislocation arrays and solute atoms plays a key role in the stability and morphology of these interfaces, influencing the lateral growth of LPSO phases in Mg alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Qiqi Li, Fei Guo, Linjiang Chai, Yanlong Ma, Luyao Jiang, Qiuyu Chen, Chengquan Zhang, Haiding Liu, Dingfei Zhang, Bin Jiang
Summary: Laser surface remelting (LSR) treatment refined the grains and redistributed the secondary phase of Mg-6.2Y magnesium alloy, resulting in significant improvement of the mechanical properties of the surface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Yanning Chen, Liang Wu, Wenhui Yao, Jiahao Wu, Yuan Yuan, Bin Jiang, Fusheng Pan
Summary: The MgAl Layered double hydroxides (LDHs)/graphene oxide (GO) composite film was synthesized in situ on the micro-arc oxidation (MAO) film of AZ31 magnesium alloy using hydrothermal chemical conversion method. The growth behavior and corrosion properties of the composite film were investigated. The results showed that the composition and morphology of the composite film changed gradually with the extended hydrothermal treatment time, utilizing the self-dissolved cation in the MAO film as the LDHs source. The MAO/LG-12 h coating exhibited higher corrosion resistance (1.28 x 10-9 A/cm2) compared to the MAO coating (8.49 x 10-6 A/cm2), thanks to the synergistic effect of GO and LDHs.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Lei Liu, Jinglei Lei, Ting Liu, Bo Shang, Xingwang Zhao, Jianxin He, Fusheng Pan, Lingjie Li
Summary: In this work, an artificial skin with fast and robust self-healing ability was designed and fabricated to provide durable intelligent protection for magnesium alloys. The artificial skin consists of a hydrothermal film layer made of magnesium (hydr)oxides and a polymer film layer made of polyethyleneimine (PEI) and polyacrylic acid (PAA). It can heal cuts of 25 μm-120 μm within 25 minutes under moist atmosphere, and shows exceptional self-healing robustness to various severe damage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Xiaoyang Dong, Jinxing Wang, Jingdong Yang, Xiao Wang, Junyao Xu, Xiaofang Yang, Wen Zeng, Guangsheng Huang, Jingfeng Wang, Fusheng Pan
Summary: In this study, rutile-type molybdenum dioxide (R-MoO2) was synthesized and used as the cathode materials in both Mg-ion batteries (MIBs) and hybrid Mg/Li-ion batteries (MLIBs). The electrochemical performance of MLIBs was greatly enhanced compared to MIBs, and the energy storage mechanism involved Mg2+ intercalation in MIBs and Mg2+/Li+ co-intercalation in MLIBs. This research further explores the energy storage mechanism of MLIBs and lays the theoretical foundation for the development of high-performance cathode materials.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Shibo Zhou, Tingting Liu, Aitao Tang, Yuanding Huang, Peng Peng, Jianyue Zhang, Norbert Hort, Regine Willumeit-Roemer, Fusheng Pan
Summary: This study investigates the effect of Sm element addition on the mechanical properties of magnesium (Mg) alloys. Experimental and computational methods were used to explore the mechanisms responsible for the improvements. The results show that the addition of Sm enhances the microstructure and mechanical properties, promoting the formation of twins and activating non-basal <a> slip, resulting in increased ductility.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Jinghao Cui, Hong Yang, Yunxuan Zhou, Jun Tan, Xianhua Chen, Jiangfeng Song, Guangsheng Huang, Kaihong Zheng, Yiming Jin, Bin Jiang, Fusheng Pan
Summary: In this study, AZ81 alloys reinforced with 3 wt%, 6 wt%, and 9 wt% TC4 (Ti-6Al-4y) particles were fabricated using two-step stirring. The addition of TC4 significantly improved the mechanical properties and microstructure of the AZ81 alloys. The refined grains and Orowan strengthening resulted from the restricted dynamic recrystallization behavior, while the good interfacial bonding contributed to the enhanced strength and ductility observed in the composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Zhihong Cui, Xuefeng Lu, Jingren Dong, Yuping Liu, Hong Chen, Changguo Chen, Jingfeng Wang, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: The low specific capacity and Mg non-affinity of graphite limit the energy density of ion rechargeable batteries. In this study, we identify that the monolayer C12-3-3 in sp2-sp3 carbon hybridization with high Li/Mg affinity is a suitable anode material for Li-ion batteries and Mg-ion batteries. The monolayer C12-3-3 exhibits high specific capacities for Li and Mg, surpassing most previous anodes. The 2D carbon material of C12-3-3 also demonstrates rapid diffusion kinetics, making it a promising choice for high-capacity and high-rate performance batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Rongrui Deng, Shuangshuang Tan, Zhongting Wang, Rong Li, Guanjie Lu, Baihua Qu, Le Tong, Ronghua Wang, Chaohe Xu, Guangsheng Huang, Jingfeng Wang, Aitao Tang, Xiaoyuan Zhou, Fusheng Pan
Summary: The concept of interfacial catalytic bond breaking is applied in the cathode design of magnesium-ion batteries (MIBs) by combining MoS2 quantum dots with VS4 (VS4@MQDs). This design improves the diffusion and reaction kinetics of Mg2+ ions, leading to enhanced battery performance and cyclic stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Senwei Wang, Kunming Zhang, Sihui Ouyang, Chengao Du, Xiong Wu, Aitao Tang, Jia She, Fusheng Pan
Summary: A highly homogeneous fine-grained Mg-3Al-1Zn (AZ31) alloy was successfully fabricated using a simple extrusion method called pre-die forging extrusion (PFE). The strain induced by the pre-forging process led to crystal defects and a higher driving force for dynamic recrystallization. By using PFE for 60 s at 300 degrees C (300-60 s), the grain size of the AZ31 alloy was significantly refined to 1.74 mu m. The 300-60 s samples exhibited excellent mechanical properties with a tensile yield strength of 305 MPa and an elongation of 27%. The improvement in the mechanical properties of the PFE samples is mainly attributed to the grain refinement mechanism. This study provides an experimental basis for determining the appropriate temperature to refine the grains during extrusion.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Haiyi Wan, Xiu Yang, Shiming Zhou, Lei Ran, Yangfan Lu, Yu'an Chen, Jingfeng Wang, Fusheng Pan
Summary: In this study, the successful preparation of FeCoNiCrMn high entropy alloy (HEA) loaded MgH2 and HEA's effect on the hydrogen storage properties of Mg/MgH2 were reported. The HEA demonstrated high catalytic activity for hydrogen dissociation and recombination reaction, lowering the activation energy of dehydrogenation reaction. Furthermore, the reaction between Co, Ni, and Mg enhanced the dehydrogenation reaction through the hydrogen pumping mechanism. The loaded HEA composite exhibited robustness against particle aggregation, enabling stable reversible hydrogen storage processes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Chengyu Han, Yu Cao, Shaojie Zhang, Liyang Bai, Ming Yang, Siyu Fang, Haochen Gong, Di Tang, Fusheng Pan, Zhongyi Jiang, Jie Sun
Summary: In the pursuit of high-energy-density lithium-ion batteries, the safety issues of batteries have become apparent. To address this, a new flame-retardant separator has been developed to enhance the safety performance of lithium-ion batteries. The flame-retardant separator utilizes nitrogen-phosphorus synergistic effect to dilute noncombustible gas and rapidly suppress thermal runaway. Experimental results show that the developed separator exhibits negligible shrinkage at 200 degrees C and extinguishes flames in just 0.54 seconds, surpassing commercial separators. Moreover, pouch cells have been assembled to validate the safety performance of PVDF-HFP/MPP separators.
Article
Nanoscience & Nanotechnology
Yuhan Wang, Yanxiong Ren, Yu Cao, Xu Liang, Guangwei He, Hanze Ma, Hongliang Dong, Xiao Fang, Fusheng Pan, Zhongyi Jiang
Summary: For the first time, the utilization of HOF-based mixed-matrix membrane for CO2 separation was demonstrated. HOF-21, a unique metallo-hydrogen-bonded organic framework material, was uniformly dispersed with Pebax polymer to form nanofillers via amine modulator. The resulting HOF-21 mixed-matrix membrane exhibited excellent stability under humid feed gas and surpassed the 2008 Robeson upper bound in terms of permeability and selectivity.
NANO-MICRO LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Cuihong Wang, Zhihua Dong, Bin Jiang, Zengyong Zheng, Sujuan Wu, Jiangfeng Song, Ang Zhang, Junyao Xu, Baoqing Yang, Changyong Zheng, Fusheng Pan
Summary: The study investigates the influence of Ca on the thermal expansion and mechanical properties of Mg. It is found that alloying Ca can significantly decrease the coefficient of thermal expansion (CTE) and increase the strength of Mg. The low CTE and high compressive yield strength achieved in Mg-Ca alloys are closely related to the increased precipitation of Mg2Ca phase, which has high melting point, elastic/shear moduli and low CTE. The increased fraction of the eutectic lamellar structure consisting of Mg2Ca and a-Mg also contributes to the noticeable increase of strength in the as-cast Mg-Ca alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yibing Zhang, Shengwen Bai, Bin Jiang, Kun Li, Zhihua Dong, Fusheng Pan
Summary: This study aims to explore the relationship between the texture and tensile properties of the AZ31 Mg alloy using machine learning. Texture characteristic parameters such as maximum pole intensity (Imax), texture dispersion (D), and texture directivities along the longitudinal direction (PLD) and transverse direction (PTD) are extracted from the (0002) pole figures. An artificial neural network (ANN) model is constructed and trained using data from literature to describe the relationship between texture characteristics and tensile properties. The ANN model shows good predictive performance in yield strength and elongation of the AZ31 Mg alloy when applied to new cases. The correlations between texture characteristics and tensile properties are analyzed based on the ANN-predicted results.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Caiyun Sun, Hailian Wang, Feixiang Yang, Aitao Tang, Guangsheng Huang, Lingjie Li, Zhongting Wang, Baihua Qu, Chaohe Xu, Shuangshuang Tan, Xiaoyuan Zhou, Jingfeng Wang, Fusheng Pan
Summary: Due to their high safety, low cost, and environmental friendliness, aqueous rechargeable Mg-ion batteries (ARMIBs) have attracted extensive attention as future energy storage systems. However, the poor migration kinetics of Mg2+ during intercalation/extraction still limits the development of suitable cathode materials. In this study, a layered buserite Mg-Mn oxide (MMO) with a large interlayer space and low-crystalline structure was found to enhance the Mg2+ migration kinetics. The MMO cathode exhibited high Mg storage capacity, excellent rate capability, and fast Mg2+ migration in the aqueous electrolyte.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Engineering, Chemical
Jin Du, Shuwei Liang, Meidi Wang, Yuhan Wang, Tianpei Yi, Zhiming Zhang, Fusheng Pan, Zhongyi Jiang
Summary: Cu-TAPB-COF nanosheets were synthesized and introduced into Pebax®2533 matrix to construct facilitated transport membranes for toluene/n-heptane mixtures. The Cu-TAPB-COF nanosheets provided continuous low mass transfer resistance channels and uniformly distributed facilitated transport sites. The resulting membrane exhibited higher adsorption selectivity and lower swelling degree compared with pure Pebax membrane. It showed high pervaporation separation performance for the toluene/n-heptane mixture.
JOURNAL OF MEMBRANE SCIENCE
(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)
