Article
Engineering, Civil
Fereshte Ghorbani, Massoud Emamy, Hamed Mirzadeh
Summary: The study focused on grain refinement and enhancement of tensile properties of a Mg-10Al magnesium alloy ingot through strontium addition (up to 1 wt%) and hot working (extrusion process). Addition of 0.05 wt% Sr led to grain refinement and the best strength-ductility combination. Extruded alloys exhibited significantly higher strength and ductility compared to as-cast ingots, with UTS of around 406 MPa and total elongation of about 24% achieved for the alloy with 0.05 wt% Sr.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Ruimin Li, Yutian Ding, Hongfei Zhang
Summary: This study explores the coordination of toughness and strength in zinc alloys by modifying grain size, secondary phase, and texture. The mechanical properties of the alloy were optimized through thermal deformation and low-temperature annealing, resulting in enhanced ductility without strength loss.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Mehrab Lotfpour, Changiz Dehghanian, Massoud Emamy, Ahmad Bahmani, Mehdi Malekan, Ahmad Saadati, Milad Taghizadeh, Mohammadreza Shokouhimehr
Summary: In this study, a new biodegradable Mg-Zn-Cu magnesium alloy was introduced for biological applications. Addition of 0.1wt.% Cu was found to enhance corrosion resistance, with extruded alloys displaying better corrosion resistance behavior compared to cast alloys. The Mg-2Zn-0.1Cu alloy was identified as a potential candidate for use as a biodegradable magnesium implant due to its improved tensile properties.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Xiaoying Qian, Zhihua Dong, Bin Jiang, Bin Lei, Huabao Yang, Chao He, Lintao Liu, Cuihong Wang, Ming Yuan, Hong Yang, Baoqing Yang, Changyong Zheng, Fusheng Pan
Summary: The role of alloying element segregation at grain boundary on the microstructure and mechanical properties of Mg-1Zn alloy with Ca, Ce, and Nd addition is investigated. The segregation of alloying elements at grain boundary affects the mobility of grain boundaries and ultimately the grain size, leading to refinement of the grain size and improved mechanical properties. The addition of Ca and Ce simultaneously improves the strength and ductility, and Ce is shown to be particularly effective in enhancing the mechanical properties of Mg-Zn alloy.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Applied
Zhongtao Jiang, Xiang Meng, Bin Jiang, Shan Jiang, Jiahong Dai, Jingren Dong, Yongfeng Ding
Summary: This study confirmed the effectiveness of Mg-10Al2Y master alloy as a grain refiner for Mg-3Y alloy, with optimum performance observed at 2 wt% addition. The addition of Al2Y particles resulted in significant enhancement in both strength and elongation of the alloy.
JOURNAL OF RARE EARTHS
(2021)
Article
Engineering, Biomedical
Maria Watroba, Wiktor Bednarczyk, Jakub Kawalko, Piotr Bala
Summary: The study investigated the microstructure, crystallographic texture, phase composition, and mechanical properties of a Zn-3Ag-0.5Mg alloy processed through combined hot extrusion and cold rolling, followed by short-time heat treatment. It was found that controlling processing conditions and annealing temperature successfully addressed the brittleness issue in Zn alloys, with the most promising results obtained after 50% cold rolling reduction and 5 minutes of annealing.
BIOACTIVE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hu Yao, Guang Zeng, Qinfen Gu, Kazuhiro Nogita, Jing Guo, Qian Li
Summary: The influences of microstructure evolution induced by thermal-mechanical processing on the hydrogen storage performance of Mg-Ni-Gd-Y-Zn-Cu alloys were investigated. The extruded alloy showed higher hydrogen absorption capacity and faster hydrogen ab/desorption kinetics due to refined alpha-Mg grains and the presence of 14H-type LPSO phases. These findings have implications for the design and manufacturing of magnesium-based hydrogen storage materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xin Tong, Guohua Wu, Liang Zhang, Wencai Liu, Wenjiang Ding
Summary: This study explored the feasibility of Zr alloying in sand-cast GW83 alloy at a low temperature by applying ZrCl4, which resulted in higher Zr yield compared to using Mg-Zr master alloy. The interaction process between ZrCl4 and Mg melt, as well as the grain refinement mechanisms, were systematically studied. The addition of ZrCl4 led to a decrease in average grain size due to heterogeneous nuclei of Zr particles and constitutional supercooling provided by solute Zr, however, a higher addition of ZrCl4 resulted in the generation of RECl3 inclusions that degraded the mechanical properties of the alloy.
MATERIALS CHARACTERIZATION
(2021)
Article
Metallurgy & Metallurgical Engineering
Lei Tang, Xiao-yan Peng, Fu-qing Jiang, Yao Li, Guo-fu Xu
Summary: An ultrafine-grained Al-Zn-Mg-Zr alloy with superior mechanical performance was obtained through high passes of ECAP and subsequent aging. The microstructure features, including grain refinement, morphology of precipitates, and dislocation density, were improved. After 8 passes of ECAP, the original coarse elongated grains were refined to a unique bimodal grain structure consisting of ultrafine equiaxed and lath-like grains.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Nanoscience & Nanotechnology
Xiaoying Qian, Zhihua Dong, Bin Jiang, Ang Zhang, Cuihong Wang, Zhiying Zheng, Fusheng Pan
Summary: Micro-alloying with Ca in Mg-1Zn-0.3Nd alloy improves tensile strength and ductility through grain refinement and increased precipitates of Mg2Ca and (Mg, Zn)3Nd. The addition of Ca enhances element co-segregation and promotes grain refinement. The nano Mg2Ca particles induced by Ca addition significantly promote the precipitation of (Mg, Zn)3Nd phase, resulting in enhanced strengthening effect. The fine grains and coherent characteristics between the phases in the alloy contribute to high ductility during deformation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Kai Zhao, Tong Gao, Huabing Yang, Kaiqi Hu, Guiliang Liu, Qianqian Sun, Jinfeng Nie, Xiangfa Liu
Summary: The addition of TiC nano-particles in high-strength aluminum alloy 7050 leads to significant grain refinement and improved mechanical properties through growth restriction effect and heterogeneous nucleation. The alignment of TiC nano-particles along extrusion direction after subsequent heat treatment contributes to the enhanced tensile properties, ductility, and refined precipitates in the composite. These synergistic effects result in optimized mechanical properties of TiCp/7050 composite, providing new insights for controlling matrix grains of Zr-containing Al alloys and developing low-cost Al matrix composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Quan-xin Shi, Cui-ju Wang, Kun-kun Deng, Yi-dan Fan, Kai-bo Nie, Wei- Wei-Liang
Summary: The present work investigates the impact of bimodal microstructure on the work hardening and softening behaviors of Mg-6Zn-1Gd-0.3Ca alloy. The study also discusses the grain refinement mechanism through EBSD analysis. The results reveal that the work hardening capacity of the alloy increases with the volume fraction of fine recrystallized grains due to increased dislocation storage rate caused by grain coarsening. The stress reduction value in the early stage of deformation is the highest for the alloy with fine recrystallized grains, providing a greater driving force for softening effect. However, the stress reduction values decrease with the increase of fine recrystallized grains in the later stage of deformation. Furthermore, the analysis indicates that dynamic recrystallization plays a significant role in the formation of fine recrystallized grains in the Mg-6Zn-1Gd-0.3Ca alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yixiao Wang, Guohua Wu, Liang Zhang, Youjie Guo, Cunlong Wang, Liangbin Li, Xunman Xiong
Summary: In this study, Sc and Ti were added to sand-cast Al-Li-Cu-Mg-Zr casting alloy for the first time. The results showed that the grain size decreased and Cu-rich phase increased with the addition of Sc and Ti. The strength of the alloy was significantly increased by Sc and Ti through the stimulation of T1 and S' phases, finer 8', higher number density of core-shell composites, and narrower 8'-precipitation free zones.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Vladislav Deev, Evgeny Prusov, Ernst Ri, Olga Prihodko, Svetlana Smetanyuk, Xizhang Chen, Sergey Konovalov
Summary: The study explores the impact of melt overheating on the crystallization process, microstructure, and mechanical properties of Al-Mg-Si aluminum alloy. Results show that increasing the melt overheating temperature can refine the dendritic cells of the aluminum solid solution and improve the morphology of eutectic inclusions, leading to enhanced mechanical properties.
Article
Materials Science, Multidisciplinary
Kaijiao Kang, Shunde Jiang, Dayong Li, Dequan Shi
Summary: The effects of pulse current, pulse frequency, magnetic field current, and magnetic field frequency on the solidification microstructure and mechanical properties of Al-Zn-Mg-Cu alloy were investigated. The electromagnetic field and flow field during the solidification process were simulated using COMSOL finite element software. The mechanism of refining the solidification structure of Al-Zn-Mg-Cu alloy was clarified. The optimal parameters for the compound field treatment were determined, resulting in finer grains and higher tensile strength in the alloy.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
A. Movahedi-Rad, R. Alizadeh
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2017)
Article
Materials Science, Multidisciplinary
R. Alizadeh, R. Mahmudi, A. H. W. Ngan, T. G. Langdon
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Nanoscience & Nanotechnology
R. Alizadeh, R. Mahmudi, P. H. R. Pereira, Y. Huang, T. G. Langdon
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2017)
Article
Materials Science, Multidisciplinary
Mohammad Javad Esfandyarpour, Reza Alizadeh, Reza Mahmudi
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2019)
Article
Materials Science, Multidisciplinary
J. -Y. Wang, N. Li, R. Alizadeh, M. A. Monclus, Y. W. Cui, J. M. Molina-Aldareguia, J. LLorca
Article
Engineering, Mechanical
T. R. Bieler, R. Alizadeh, M. Pena-Ortega, J. Llorca
INTERNATIONAL JOURNAL OF PLASTICITY
(2019)
Article
Engineering, Mechanical
S. Haouala, R. Alizadeh, T. R. Bieler, J. Segurado, J. LLorca
INTERNATIONAL JOURNAL OF PLASTICITY
(2020)
Article
Materials Science, Multidisciplinary
R. Alizadeh, J. LLorca
Article
Nanoscience & Nanotechnology
R. Alizadeh, M. Pena-Ortega, T. R. Bieler, J. LLorca
SCRIPTA MATERIALIA
(2020)
Article
Nanoscience & Nanotechnology
G. Esteban-Manzanares, R. Alizadeh, I Papadimitriou, D. Dickel, C. D. Barrett, J. LLorca
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Health Care Sciences & Services
Joel Mintz, Chase Labiste, Michael DiCaro, Evan McElroy, Reza Alizadeh, Kunyong Xu
Summary: COVID-19 has disrupted ophthalmic practice worldwide. Patients with age-related macular degeneration (AMD) may experience poor outcomes during the pandemic. Teleophthalmology can aid in the continuity of care for AMD patients. Risk-stratification models and at-home monitoring devices can be used to screen and detect neovascular AMD (nAMD) remotely. Telemedicine triage and smartphone fundus photography can help with management and detection of suspected nAMD. Teleophthalmology can also play a role in screening patients for COVID-19 and reaching underserved populations.
JOURNAL OF TELEMEDICINE AND TELECARE
(2022)
Article
Nanoscience & Nanotechnology
Reza Alizadeh, Jingya Wang, Javier LLorca
Summary: The mechanical properties of Mg-4wt.% Zn alloy single crystals were investigated through micropillar compression testing, revealing that pyramidal slip in precipitation hardened alloy leads to homogeneous deformation and strong hardening. The presence of rod-shape precipitates perpendicular to the basal plane significantly reduces the plastic anisotropy of Mg.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Review
Metallurgy & Metallurgical Engineering
Ehsan Gerashi, Reza Alizadeh, Terence G. Langdon
Summary: Magnesium and its alloys are lightweight and potential bioresorbable materials, but their corrosion resistance is poor. This review summarizes the effects of crystallographic texture and twinning on the corrosion behavior of magnesium and its alloys, revealing contradictory results.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Nanoscience & Nanotechnology
Ehsan Gerashi, Mohammad Asadollahi, Reza Alizadeh, Reza Mahmudi
Summary: The effects of Sr additions on the microstructural evolution, thermal stability, and mechanical properties of a cast Mg-4Zn alloy were investigated. Sr additions increased the hardness and shear strength of the alloy, and improved its thermal stability by inhibiting grain growth.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Meysam Mohammadi-Zerankeshi, Mohammad Zohrevand, Reza Alizadeh
Summary: Developing antibacterial biodegradable Mg alloys is crucial for preventing infection and inflammation during healing. Mg-2Ag alloy is a suitable candidate with good biocompatibility and antibacterial activity, but its fast degradation rate hinders its clinical application. To address this issue, a hydrothermal coating technique was used to synthesize a barrier coating on the Mg-2Ag alloy using distilled water. The microstructure of the substrate played a vital role in the coating quality and degradation behavior, with the solution-treated alloy showing improved corrosion resistance compared to the as-cast alloy due to its homogenized microstructure and formation of a more compact and integrated coating.
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)
