Article
Materials Science, Multidisciplinary
Mahdieh Safyari, Masoud Moshtaghi, Tomohiko Hojo, Eiji Akiyama
Summary: This study revealed that aluminum alloy with coherent Al3Zr dispersoids exhibits superior hydrogen embrittlement resistance. The elastic interaction between coherency strain and hydrogen leads to hydrogen accumulation at Al3Zr dispersoids, while the introduction of misfit dislocations decreases elastic strain and enhances hydrogen trapping.
Article
Nanoscience & Nanotechnology
X. W. Zhou, R. Skelton, R. B. Sills, C. San Marchi
Summary: Slip blockage at slip band intersections plays a significant role in the mechanical properties of crystalline materials. Molecular dynamics simulations on Fe(70)Ni(10)Cr(20) alloys showed that secondary bands are more likely to transmit into e bands rather than twin bands. The lack of easy crystallographic pathways in twin bands explains this surprising phenomenon. Additionally, it was found that band intersection regions tend to nucleate voids, providing insights into the deformation and damage behavior of FCC metals.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Weijie Wu, Hao Fu, Xuewei Zhang, Weiguo Li, Shenguang Liu, Jinxu Li
Summary: This study investigates the effect of anisotropy on the Hydrogen Embrittlement (HE) susceptibility of a 2205 Duplex Stainless Steel (DSS). The slip transfer across Grain Boundary (GB) is analyzed both experimentally and theoretically. Specimens sampled along the 45 degrees Rolling Direction (RD) exhibit remarkable HE resistance due to delayed microcrack initiation and slow evolution. Hydrogen-Assisted Cracks (HACs) often initiate at the austenite GBs due to the synergistic interactions between hydrogen-enhanced planar slip and slip transfer across GB, leading to stress/hydrogen accumulation and reduced GB cohesion.
Article
Nanoscience & Nanotechnology
Shidong Zhang, Min Liu, Yun Luo, Lianbo Wang, Zemin Wang, Zhanyong Wang, Fangjie Li, Qin Shen, Xiaowei Wang
Summary: The influence of hydrogen charging on the mechanical behavior of cryo-rolled and annealed Al025CoCrFeNi high entropy alloy was investigated through tensile experiments. Results showed that the alloy exhibited immunity to hydrogen embrittlement and a decrease in stacking fault energy, leading to enhanced strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Hong-Tao Xue, Ji-Zheng Li, Fu-Ling Tang, Xue-Feng Lu, Jun-Qiang Ren
Summary: This study systematically investigated the formation and effects of hydrogenated vacancies at the (001) γ-Ni/γ'-Ni3Al interface using first-principles calculations. The results showed that hydrogenated vacancies can improve the interfacial thermodynamic stability but weaken the fracture strength of the interface, altering the preferred fracture location. The mechanisms of stabilizing and weakening effects on the gamma/gamma' interface were revealed through spin-polarized density of states and differential charge densities.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Ye Jiao, WenJiao Dan, WeiGang Zhang
Summary: This study investigates the deformation mechanisms of face-centred cubic Fe-C single crystal with nanovoid containing hydrogen at various contents by molecular dynamics tensile simulations. It is found that the addition of hydrogen affects dislocation slip and martensitic transformation, leading to increased dislocation mobility and hydrogen embrittlement. The study suggests that void defects with sharp corners could induce premature plastic deformation in fcc crystals.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
C. J. Wang, Z. R. Liu, B. N. Yao, X. F. Kong, D. Legut, R. F. Zhang, Y. Deng
Summary: This study found that the position of hydrogen clusters has a significant impact on dislocation nucleation and interface sliding in metallic nanocomposites, providing a rational atomistic mechanism for the effect of hydrogen clusters on interface facilitated plasticity.
SCRIPTA MATERIALIA
(2021)
Editorial Material
Chemistry, Physical
Vasily Bulatov, Wei Cai
Summary: The in situ electron microscopy study provides important insights into the enhanced dislocation mobility in iron and contributes to the ongoing debate on hydrogen embrittlement mechanisms.
Article
Chemistry, Physical
Yang He, Yunjuan Su, Haobo Yu, Changfeng Chen
Summary: This study investigated the trapping sites and diffusion behaviors of hydrogen atoms in different iron grain boundary structures through first-principles calculations. The diffusion behavior of hydrogen in grain boundaries was found to have an impact on hydrogen embrittlement phenomenon.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nanoscience & Nanotechnology
H. Guo, M. M. Zhang, D. S. Xu, J. H. Zhang, J. K. Qiu, Z. C. Meng, S. J. Zheng, Y. J. Ma, H. Wang, R. Yang
Summary: The planar slip associated with dislocation interactions with a(2) precipitates in titanium alloys was examined using atomistic simulation and transmission electron microscopy. The simulation revealed that the passing of dislocations through a(2)-Ti3Al particles leads to different critical resolved shear stress (CRSS), which increases linearly with particle diameter in both prismatic and basal planes, resulting in the formation of an anti-phase boundary within the particle and decreasing the CRSS for subsequent passes. This triggers a slip planarity that involves dislocation pairs. The findings contribute to a better understanding of the plasticity and fatigue behavior of titanium alloys containing a(2) precipitates.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Lin Chen, Stoichko Antonov, Keke Song, Huihui Zhi, Wenyao Li, Yong Chen, Kuanhui Hu, Yong Zhong, Yanjing Su, Lijie Qiao
Summary: This study investigated the effect of solution atoms on the hydrogen embrittlement resistance of TWIP steels, finding that Fe-30Mn-3Al3Si steel showed better resistance compared to Fe-30Mn-0.6C steel. Additionally, the crack mode of Fe-30Mn-3Al3Si steel was a combination of transgranular and intergranular cracks, while transgranular cracks were rarely found in Fe-30Mn-0.6C steel.
Article
Chemistry, Multidisciplinary
Evan D. Sherwin, Ernest Lever, Adam R. Brandt
Summary: Natural gas distribution systems play a significant role in the US energy consumption, but as the system moves towards decarbonization, understanding the response of existing infrastructure to new operational modes becomes crucial. Opportunistic sampling can reduce data collection costs if it represents the entire asset base. Analysis of a dataset from a large natural gas distribution utility suggests that sampling locations affected by excavation damage can provide representative estimates of key characteristics across the asset base. This sampling approach can help utilities gather necessary data for a safe and reliable transition to a lower-emission system.
Article
Materials Science, Multidisciplinary
Jiaqing Li, Ziyue Wu, Lijie Zhu, Zhuwu Zhang, Lin Teng, Liang Zhang, Cheng Lu, Rui Wang, Che Zhang
Summary: The influence of temperature on hydrogen diffusion and hydrogen embrittlement of X80 steel was studied. The results showed that the hydrogen diffusion and subsurface hydrogen concentration in the steel increased with increasing temperature. Macro slow strain rate tensile tests and microstructural analysis revealed a temperature threshold THE, max of 315 K for hydrogen-induced embrittlement susceptibility. The determination of THE, max is crucial for determining test temperatures in hydrogen-related engineering material applications.
Article
Nanoscience & Nanotechnology
Mitsuhiro Okayasu, Takafumi Fujiwara
Summary: Experimental and numerical studies revealed that severe hydrogen embrittlement occurred in the DS sample, while weak hydrogen embrittlement was detected in the AS and FS samples. Hydrogen trapping occurred in the low atomic density zones in the boundaries between alpha and gamma phases in the DS sample.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
T. Zhu, Z. H. Zhong, X. L. Ren, Y. M. Song, F. J. Ye, Q. Q. Wang, Alfonso H. W. Ngan, B. Y. Wang, X. Z. Cao, Q. Xu
Summary: This study found that hydrogen alloying with a proper concentration can improve the strength and ductility of high-entropy alloys by promoting the formation of stacking faults/nanotwins at the interface. The beneficial effect is positively correlated with the hydrogen concentration at the interface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Titao Li, Haihuai Cai, Caifu Li, Xiaolong Liu, Feng Huang
FRONTIERS IN CHEMISTRY
(2020)
Article
Engineering, Mechanical
Li-Yin Gao, Jian Wen, Cai-Fu Li, Chunhuan Chen, Zhi-Quan Liu
ENGINEERING FAILURE ANALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Fangyan Liu, Mengye Wang, Xiaolong Liu, Biao Wang, Caifu Li, Chenning Liu, Zhang Lin, Feng Huang
Summary: A simple and robust strategy using light and solution treatment has been developed to create an organic membrane that effectively passivates CH3NH3PbI3, improving the stability and crystal quality of perovskites, significantly enhancing the photocatalytic hydrogen evolution rate.
Article
Chemistry, Physical
Fangyan Liu, Yan Tong, Caifu Li, Xiaolong Liu
Summary: This study explores a viable strategy to craft one-dimensional carbon nitrides denoted as polymelem (PM) as photocatalysts, which exhibit significantly improved efficiency compared to two-dimensional graphitic carbon nitrides (g-C3N4). The conjugated structures of PM contribute to the decrease in activation energy and separation rate of photogenerated charge carriers, leading to enhanced photocatalytic performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Applied
Biao Wang, Qian Zhang, Jiaqing He, Feng Huang, Caifu Li, Mengye Wang
Summary: The study found that single crystal ZnO prepared by hydrothermal method can efficiently catalyze hydrogen generation from pure water, with a large surface area. Compared to Ga-doped ZnO powder, the hydrogen production rate of Ga-doped ZnO bulk crystal in pure water is higher.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Bowen Zhang, Chuantong Chen, Takuya Sekiguchi, Yang Liu, Caifu Li, Katsuaki Suganuma
Summary: This paper proposes a novel and low-cost Ag salt paste for robust and large-area Cu to Cu bonding. The bonding strength and microstructure changes of the sintered Ag under various bonding conditions are investigated. The developed Ag salt paste exhibits high bonding strength and good anti-oxidation performance, addressing the challenges faced by large-scale sintering and promoting the high-temperature applications of power devices.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ruidong Luo, Xiaoli Yu, Zhen Wu, Hao Zhang, Zhi-Quan Liu, Katsuaki Suganuma, Cai-Fu Li
Summary: This study proposes a new method for directly bonding aluminum with silver flake-based paste by using an appropriate surface treatment method. The bonding mechanism is elucidated and this technique shows great potential for the wide application of low cost aluminum-based substrates in power electronics.
MATERIALS LETTERS-X
(2022)
Article
Neurosciences
Jing Wang, Ge Zhang, Min Min, Ying Xing, Hongli Chen, Cheng Li, Caifu Li, Hanhan Zhou, Xianwen Li
Summary: This study aimed to develop an evidence-based and culturally appropriate non-pharmacological intervention program for wandering in people with dementia (PwD), in order to guide healthcare providers in nursing homes to prevent wandering and its adverse outcomes.
Article
Energy & Fuels
Chen Song, Caifu Li, Dan Zhu, Wenbin Chen, Lun Ai, Neng Huang, Li Yang, Chuwen Guo, Fang Liu
Summary: This study proposes a comprehensive method for the treatment and reuse of industrial waste, such as sewage sludge and red mud. By using red mud as an oxygen carrier, sewage sludge as fuel, and low-concentration methane as an oxidizing gas, the study demonstrates efficient recycling of these wastes. The results show high treatment efficiency and reuse effectiveness under specific temperature and gas proportions.
Review
Energy & Fuels
Fang Liu, Chen Song, Dan Zhu, Caifu Li, Lun Ai, Chunmei Xin, Xingyang Zeng, Liang Zeng, Neng Huang, Li Yang
Summary: This study provides a comprehensive review of oxygen carrier (OC) attrition in chemical looping technology, including mechanisms, measurement methods, simulation models, and methods to reduce attrition. Despite severe attrition found in many studies, there is no systematic understanding of OC attrition in the chemical looping field. Therefore, future studies should provide more complete particle parameters to construct a more comprehensive database and gain further insight into the attrition mechanism of OC.
Article
Environmental Sciences
Qingmin Dai, Hong Su, Zanhua Zhou, Caifu Li, Jihua Zou, Ying Zhou, Rhayun Song, Yang Liu, Lijuan Xu, Yuqiu Zhou
Summary: This study aimed to translate the Mild Cognitive Questionnaire (MCQ) into Chinese and evaluate its reliability and construct validity among older adults with mild cognitive impairment (MCI). After linguistic translation and validation, the MCQ-Chinese was applied to a sample of 186 older adults with MCI. Results showed good internal consistency, construct validity, and discriminant validity for the MCQ-Chinese.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Environmental Sciences
Lijuan Xu, Yan Lou, Caifu Li, Xuemei Tao, Maria Engstrom
Summary: This study examines the association between resident-rated person-centered climate, garden greenery, and resident-rated well-being in nursing home residents. The results show that person-centered climate and greenery are positively associated with general health and life satisfaction, and negatively associated with depression symptoms. These associations remain significant even after adjusting for personal and nursing home characteristics. The findings contribute to the understanding of person-centered care and the importance of access to green spaces in long-term care facilities.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Chemistry, Applied
Li Yang, Chen Song, Lun Ai, Fang Liu, Caifu Li, Dan Zhu, Chuwen Guo
Summary: This study established an irregular polyhedron model to predict the breakage process of particles in a fluidized bed. The investigation found that the velocity differential between particles was the main factor that caused impact power. The particles were typically crushed one to six times before becoming completely fine powder, and their size evolution can be summarized in three stages. This work contributes to a deeper understanding of particle collision behavior and breakage mechanisms in fluidized beds.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Geriatrics & Gerontology
YueLin Li, LinYu Lyu, Xing Fan, LiJuan Xu, RuoRan Zhao, YuBo Jiang, Jisu Seo, CaiFu Li, Rhayun Song
Summary: The study translated and linguistically validated the Chinese version of APAFOP, laying the foundation for evaluating its measurement properties in assessing physical activity among frail older adults in China.
JOURNAL OF AGING AND PHYSICAL ACTIVITY
(2022)
Article
Energy & Fuels
Li Yang, Wenbin Chen, Chen Song, Caifu Li, Jinlong Chen, Xi Zhang, Fang Liu
Summary: Chemical looping combustion (CLC) is a technique that utilizes oxygen carriers (OCs) to transfer oxygen and heat between fuel reactor and air reactor. The attrition of OCs is a major impediment to the large-scale application of CLC technology. In this study, the effects of different biomass ashes on the reactivity and attrition resistance of red mud OCs were investigated. The results showed that the rape straw ash promoted the reactivity of OCs, while the bagasse ash improved the attrition resistance. The corn straw ash was found to be an effective material for strengthening the skeleton structure of OCs, enhancing both reactivity and attrition resistance.
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)
