Article
Materials Science, Ceramics
Abhilasha Jain, Yogesh Prabhu, Dmitry Gunderov, E. V. Ubyivovk, Jatin Bhatt
Summary: In this study, investigation on high pressure torsion (HPT) and accumulative HPT (ACC HPT) processed Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) was conducted. The results showed that the alloy retained its glassy phase before and after processing, with ACC HPT more intensively transforming the structure of BMG compared to conventional HPT.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Ceramics
Tao-Hsing Chen, Chi-Feng Lin, Jian-Yu Wang
Summary: The glass-forming ability, stress-strain relationships, and fracture characteristics of Zr60-xCu27Al8Fe5Yx (x =1, 3 and 5 at%) bulk metallic glasses are studied under compressive strain rates ranging from 10-3 to 4 x 103 s^-1. Yttrium addition broadens the supercooled liquid region and increases the γ parameter, especially for x = 1 at%. Fracture stress increases with increasing strain rate for all tested alloys, while fracture strain decreases. Addition of 3 at% Y results in the highest fracture stress and improved fracture strain. Fracture behavior is primarily influenced by strain rate, while Y content has a minor role.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Tao-Hsing Chen, Chi-Feng Lin, Jian-Yu Wang
Summary: In this study, the glass-forming ability, stress-strain relationships, and fracture characteristics of Zr60-xCu27Al8Fe5Nbx (x = 0, 1, 3 and 5 at%) bulk metallic glasses were investigated. The addition of Nb was found to increase the supercooled liquid region and parameter gamma of the BMGs. Fracture stress increased with increasing strain rate, while fracture strain decreased. The addition of 3 at% Nb resulted in the highest fracture stress and fracture strain.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Xiangkui Liu, Xudong Zu, Yuting Wang, Shuai Feng, Qipeng Wang, Jian Kong
Summary: This study systematically investigates the dynamic deformation and fracture behavior of Zr-based metallic glasses under different strain rates. The dynamic fracture strength shows a two-stage transition from softening to hardening with increasing strain rate. In the first stage, the temperature rise within the shear bands leads to strain-rate softening and promotes the propagation of shear bands. In the second stage, localized crystallization occurs due to the increasing temperature in the shear bands, resulting in strain-rate hardening.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Xiang Wang, Zhi Qiang Ren, Wei Xiong, Si Nan Liu, Ying Liu, Si Lan, Jing Tao Wang
Summary: By studying the behavior of bulk metallic glass (BMG) under different processing methods, it is found that internal stress plays a critical role in the negative strain rate sensitivity (SRS) observed in structurally heterogeneous BMG alloys and composites.
Article
Materials Science, Multidisciplinary
Devashish Rajpoot, R. Lakshmi Narayan, Long Zhang, Punit Kumar, Haifeng Zhang, Parag Tandaiya, Upadrasta Ramamurty
Summary: Fracture behavior of bulk metallic glass matrix composites with both transforming and non-transforming fi-Ti dendrites under shear and opening modes was examined, showing lower fracture toughness in mode II due to shear dominant stress state and considerable crack growth in this mode. Despite the ability of transforming dendrites to strain harden and enhance ductility, BMGCs reinforced with non-transforming dendrites exhibit higher toughness in both modes. Shear band patterns suggest identical fracture mechanism in BMGCs and BMGs, with differences rationalized by the effect of relaxation enthalpy and dendrites length scale.
Article
Nanoscience & Nanotechnology
Alireza Jalali, Mehdi Malekan, Eun Soo Park, Reza Rashidi, Ahmad Bahmani, Geun Hee Yoo
Summary: The compressive deformation behavior of Zr33Hf8Ti6Cu32Ni10Co5Al6 and Cu47Zr47Al6 alloys was studied at room temperature and high temperatures. The development of HEBMG improved ductility and fracture stress at room temperature. At high temperatures, HEBMG could withstand more stresses and had higher viscosity compared to BMG.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Physics, Applied
Zhiming Jiao, Kuo Li, Zhong Wang, Zhihua Wang, Junwei Qiao, Peter K. Liaw
Summary: This study investigates the effects of strain rate on the yielding strength and maximum temperature at shear bands in a bulk metallic glass. The results show that the strain rate effect on yielding strength transitions from a sudden decrease to a subsequent slow change with increasing strain rate. Additionally, dynamic strain rates shorten the shear band evolution time, leading to an increase in the maximum temperature at shear bands.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Y. S. Luo, J. J. Li, Z. Wang, M. Zhang, J. W. Qiao
Summary: Based on a simple mean-field model, two distinct types of slip avalanches in serrated plastic flows of bulk metallic glasses were identified to differentiate the slipping modes of shear bands under various strain rates. Small avalanches propagate progressively, while large avalanches follow a simultaneous propagation. By defining a weakening parameter and critical size, researchers were able to characterize the completely disparate shearing modes, with larger weakening and lower critical sizes indicating more activated shear transformation zones, offering a new method to explore plasticity in bulk metallic glasses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
M. S. Z. Zhao, Z. L. Long, L. Peng
Summary: Nanoindentation tests were conducted on different bulk metallic glasses to determine their strain rate sensitivities of hardness, which were found to be negative. The variations in strain rate sensitivity values along with different factors were observed and discussed to understand the reasons for this negative strain rate sensitivity and its dependence on the composition and other factors of metallic glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Nanoscience & Nanotechnology
Jiazi Bi, Xinquan Wei, Xiaobin Liu, Ran Li, Ruijuan Xiao, Tao Zhang
Summary: A family of novel Os-Co-Ta-B high-temperature bulk metallic glasses (HTBMGs) with high glass transition temperature, Vickers microhardness, and compressive strength was fabricated by introducing high-modulus refractory metal Os and strong-covalent metalloid B. The impressive strength is attributed to the strong bond characteristics especially for Ta-Os and B-B bonds. The castable OsCo-based HTBMGs with superior mechanical properties and high thermal stabilities are significant for high-temperature applications as advanced structural materials.
SCRIPTA MATERIALIA
(2023)
Review
Materials Science, Ceramics
Zeinab Savaedi, Reza Motallebi, Hamed Mirzadeh, Mehdi Malekan
Summary: Thermoforming in the supercooled liquid region can achieve high strain-rate-sensitivity and superplastic ductility. Incipient deformation-induced crystallization and stress-assisted free volume change lead to a transition from Newtonian to non-Newtonian flow. Factors such as heating rate, processing time, and the extent of the supercooled liquid region significantly affect the structural stability. Increasing the deformation temperature enhances superplastic behavior, but high temperatures may promote crystallization and loss of superplastic ductility. Future research directions include optimizing the structure and preparation methods of metal glass-based composites and improving thermoplastic formability.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Review
Materials Science, Multidisciplinary
Yu Chen, Chunguang Tang, Jian-Zhong Jiang
Summary: BMGs' brittleness and work-softening hinder their wide applications as structural engineering materials, but can be improved by introducing the B2 phase to enhance plastic deformation and work-hardening. Although progress has been made, achieving enhanced tensile ductility and work-hardening in BMG composites remains a challenge.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Wei Chen, Haitao Wang
Summary: Tailoring the energy state of a Zr-based metallic glass (MG) through constrained compression reveals a strong dependence of MG strain rate sensitivity on energy state. The hardness of as-cast MG increases with strain rate, while no dependence is observed in highly rejuvenated MG. These observations can be well understood through the free volume model.
Article
Engineering, Manufacturing
Ningsong Fan, Chunjie Huang, Zhongyu Wang, Pengfei Yu, Wen Chen, Rocco Lupoi, Qingge Xie, Lin Liu, Shuo Yin
Summary: In this study, the bonding mechanisms of metallic glass particles and the evolution mechanism of amorphous phase into nanocrystal structures in cold sprayed bulk metallic glass deposits were systematically investigated.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Tangqing Cao, Wenqi Guo, Wang Lu, Yunfei Xue, Wenjun Lu, Jing Su, Christian H. Liebscher, Chang Li, Gerhard Dehm
Summary: The mechanical behavior and deformation mechanisms of a body-centered cubic high entropy alloy were investigated at different temperatures and strain rates, revealing an increase in yield stress with increasing strain rate and a transition from strain softening to strain hardening at lower temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Qian Zhang, Ruirui Huang, Jiaxi Jiang, Tangqing Cao, Yongpan Zeng, Jianguo Li, Yunfei Xue, Xiaoyan Li
Summary: As a new class of revolutionary alloy materials, high entropy alloys (HEAs) have been extensively studied due to their unique composition, microstructures, and superior mechanical properties. This study focused on the deformation behavior and mechanisms of HEA single crystals at the micro/nanoscale, revealing different size effects and deformation mechanisms in crystals with different orientations, providing insights for the design and fabrication of high-strength HEAs with remarkable plasticity.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Kaixuan Chen, Zhiping Xiong, Miaolan An, Tongbin Xie, Weidong Zou, Yunfei Xue, Xingwang Cheng
Summary: Eutectic multi-principal element alloys (MPEAs) have a vast compositional space for eutectics, which can be determined using a novel strategy combining phenomenological modeling and machine learning. The variation of eutectic compositions significantly affects the microstructures and mechanical performances.
MATERIALS & DESIGN
(2022)
Article
Metallurgy & Metallurgical Engineering
Bo Cheng, Yunkai Li, Xiaoxi Li, Huibin Ke, Liang Wang, Tangqing Cao, Di Wan, Benpeng Wang, Yunfei Xue
Summary: The crystal structure, microstructure and hydrogen storage performance of a series of high-entropy alloys in the Ti-V-Nb-Cr system were investigated. It was found that one alloy exhibited a high hydrogen storage capacity. The addition of Mn, Fe and Ni elements destabilized the hydrides, further improving the kinetics of hydrogen adsorption and dissociation.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Engineering, Multidisciplinary
Wei-Li Song, Quan Ma, QingLei Zeng, ShengXin Zhu, MingBin Sui, TangQing Cao, Wei Qi, YinQiang Chen, XiaoQi Yu, YunFei Xue, Hao-Sen Chen
Summary: This study investigates the mechanism of dynamic shear banding in a BCC HEA HfNbZrTi, and finds that in this material, dynamic shear banding is primarily controlled by damage softening, with thermal softening playing a secondary role.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Zhenhuan Gao, Yunfei Xue, Jinxu Li, Lining Xu, Lijie Qiao
Summary: The study shows that the Al0.5Cr0.9FeNi2.5V0.2 high-entropy alloy has good resistance to hydrogen embrittlement after hydrogen charging, with a fracture surface mainly composed of dimples and no intergranular morphology observed.
Article
Cardiac & Cardiovascular Systems
Yaqin Tang, Zhiwei Li, Hongqin Yang, Yang Yang, Chi Geng, Bin Liu, Tiantian Zhang, Siyang Liu, Yunfei Xue, Hongkai Zhang, Jing Wang, Hongmei Zhao
Summary: This study reveals that YB1 phosphorylation affects the development of atherosclerosis by modulating inflammation. Dephosphorylated YB1 can reduce lipid accumulation and lesion area in the blood vessels. Furthermore, dephosphorylated YB1 can also decrease the levels of inflammatory cytokines, particularly CCL2, which is involved in the pathogenesis of atherosclerosis.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Cardiac & Cardiovascular Systems
Jiehua Li, Yunfei Xue, Shangqian Li, Likun Sun, Lunchang Wang, Tun Wang, Kun Fang, Mingyao Luo, Xin Li, Hao He, Ming Li, Quanming Li, Alan Dardik, Chang Shu
Summary: TEVAR with chimney technique is a minimally invasive alternative for the treatment of aortic arch diseases, providing good chimney graft patency and low postoperative mortality during follow-up. However, caution should be exercised when using double and triple chimney techniques, as they seem to be associated with a higher risk of type IA endoleak and adverse events after the operation.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Computer Science, Artificial Intelligence
Xiangzhou Zhang, Kang Liu, Borong Yuan, Hongnian Wang, Shaoyong Chen, Yunfei Xue, Weiqi Chen, Mei Liu, Yong Hu
Summary: This paper introduces a novel Hybrid Adaptive Boosting approach (HA-Boost) for transfer learning, effectively addressing the issue of model performance degradation due to the dynamic nature of clinical data. Experimental results demonstrate that HA-Boost performs significantly better in predicting clinical risks.
INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS
(2022)
Article
Metallurgy & Metallurgical Engineering
Xue Yin, Yan-Kun Dou, Xin-Fu He, Ke Jin, Cheng-Long Wang, Ya-Guang Dong, Cun-Yong Wang, Yun-Fei Xue, Wen Yang
Summary: The addition of Nb in TiVTa refractory high-entropy alloy significantly improves impact toughness and strengthens the resistance to crack initiation and propagation. TiVTaNb alloy exhibits larger bending degree of shear lips, deeper dimples, and more secondary cracks, effectively dissipating more impact energy. The deformation mechanism of TiVTaNb is synergized by dislocation activities and deformation twinning, contributing to improved impact properties and stronger crack resistance under impact loading.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Bo Cheng, Lingjie Kong, Yunkai Li, Di Wan, Yunfei Xue
Summary: In recent years, high-entropy alloys (HEAs) have gained significant attention due to their potential for hydrogen storage, fast hydrogen absorption kinetics, and composition selectivity. In this study, three V30Nb10(TixCr1-x)(60) HEAs with different Ti contents were designed and investigated for their microstructure characteristics and hydrogen storage performances. The results showed that the alloys exhibited similar hydrogen release behaviors at different temperatures, with the hydrogen desorption kinetics being controlled by diffusion. The study provides valuable information for the development of high-entropy-based hydrogen storage alloys.
Review
Materials Science, Multidisciplinary
Lingjie Kong, Bo Cheng, Di Wan, Yunfei Xue
Summary: Recently, high entropy alloys (HEAs) with body-centred cubic (BCC) single phase structures have been widely studied for hydrogen storage due to their unique structural characteristics and excellent performance. In this review, the definition and criteria of HEAs are discussed, and the current research status of BCC-structured HEAs for hydrogen storage is summarized from the perspectives of composition designs, synthesis processes, and hydrogen storage properties. Furthermore, the possible application scenarios and future research directions are analyzed.
FRONTIERS IN MATERIALS
(2023)
Article
Medical Informatics
Xiangzhou Zhang, Yunfei Xue, Xinyu Su, Shaoyong Chen, Kang Liu, Weiqi Chen, Mei Liu, Yong Hu
Summary: The study developed a predictive modeling framework based on transfer learning to correct performance drift in clinical prediction models caused by changes in the patient population. The framework effectively utilized new data while preserving old knowledge, resulting in improved model performance.
JMIR MEDICAL INFORMATICS
(2022)
Article
Geosciences, Multidisciplinary
Yan Zhang, Yun-fei Xue, Chun-yang Bu, Ti Li, Xin Zhang, Yu-dong Jin, Yue-wu Sun
Summary: This study identifies two palynological assemblages in the Tongbomiao Formation in the Hailar Basin, Inner Mongolia, China for the first time. These assemblages provide important evidence for biostratigraphic correlation and allow reconstructions of the vegetation and paleoclimate during the Early Cretaceous period.
Article
Chemistry, Physical
X. X. Wang, W. Q. Wang, W. D. Hutchison, C. W. Wang, H. Y. Hao, F. Su, Y. F. Xue, J. C. Debnath, S. J. Campbell, Z. X. Cheng, J. L. Wang
Summary: The structural and magnetic properties of LaMn2Ge2 compound were studied, revealing its potential for magnetic refrigeration applications at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(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)
