Article
Materials Science, Multidisciplinary
Jingwei Liang, Shibo Wu, Zhenglong Lei, Yanbin Chen, Xinrui Zhang, Bingwei Li, Meng Jiang, Yuan Chen
Summary: In this study, the effects of preheating temperature on the microstructure, mechanical properties, and corrosion resistance of a ZK60 Mg alloy processed by laser powder bed fusion (LPBF) were analyzed. The results showed that as the preheating temperature increases, the mechanical properties of the alloy improve, but the corrosion resistance first improves and then deteriorates. It was concluded that selecting an appropriate preheating temperature is crucial to obtain the desired mechanical properties and corrosion resistance.
MATERIALS CHARACTERIZATION
(2022)
Article
Chemistry, Physical
WenHui Guo, Jingyuan Li, Mingfan Qi, Yuzhao Xu, Hamid Reza Ezatpour
Summary: The effects of heat treatment on the microstructure, mechanical properties, and corrosion resistance of AlCoCrFeNiTi0.5 high-entropy alloy were investigated. Heat treatment was found to refine the microstructure, improve mechanical properties, and influence the alloy's hardness and corrosion resistance significantly.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Chuan Xu, Xinjian Yuan
Summary: High frequency ultrasonic vibration was used for arc welding of MB3 Mg alloy to improve welding defects and microstructure issues. By optimizing experimental parameters, Mg alloy joints with favorable mechanical properties were obtained. However, excessive ultrasonic power could degrade tensile strength.
Article
Nanoscience & Nanotechnology
H. Miura, P. L. Khoo, M. Kobayashi
Summary: This study utilized extremely high-pressure forging conditions to refine the grain and improve the mechanical properties of magnesium AZ80 alloy by forming mechanical twins and texture strengthening. The hardness, yield strength, and ultimate tensile strength of the material were notably enhanced with increasing forging stress.
SCRIPTA MATERIALIA
(2023)
Review
Chemistry, Multidisciplinary
Shiliang Zhang, Jing Jiang, Xianrui Zou, Ning Liu, Hongshui Wang, Lei Yang, Huan Zhou, Chunyong Liang
Summary: Magnesium (Mg) metals, as a promising lightweight structural material, have been widely used but are limited by their low corrosion resistance and poor mechanical properties. Laser surface treatment is a common approach to improve the mechanical strength and corrosion resistance of Mg metals. This article briefly describes the changes in surface organization and the creation of new structures through laser treatment on Mg surfaces, and reviews the effects on wettability, hardness, friction wear, degradation, biocompatibility, and mechanical properties. The limitations and development trends of laser treatment on Mg metals research are also discussed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Xiaofeng Wang, Mingxing Guo, Oleksandr Moliar, Wenfei Peng, Chao Xie, Jianbin Chen, Yonggang Wang
Summary: A novel thermomechanical processing method was proposed to obtain an Al-Mg-Si alloy sheet with fine grain structure, weak texture, and high plastic strain ratio. By controlling the overaging time, the grain structure can be refined, the texture can be weakened, and the plastic strain ratio can be improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Xuejun Huang, Jiashi Miao, Sirui Li, Christopher D. Taylor, Alan A. Luo
Summary: An equiatomic CuFeMnNi high-entropy alloy was synthesized and homogenized to achieve a microstructure of single face centered cubic phase based on CALPHAD prediction. The strength and ductility of the Co-free HEA can be tuned through thermomechanical processing. Experimental characterization showed plastic deformation with high stacking-fault energy, suggesting potential for low-cost alternatives in engineering applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Yu Huang, Hucheng Pan, Zhen Pan, Zhihao Zeng, Weineng Tang, Chubin Yang, Sen Du, Yuping Ren, Gaowu Qin
Summary: A new Mg-Sm-Ce alloy sheet was fabricated by extrusion process, and its yield strength was significantly increased through a novel pre-stretching process. The pre-stretching induced grain rotation and gradually formed a specific texture, resulting in enhanced hardness of the sheet. Increased density of dislocations within the sheet inhibited the movement of dislocations and led to a higher yield strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Shuncun Luo, Zemin Wang, Hiromi Nagaumi, Zibin Wu
Summary: The near-eutectic microstructures of AlCrCuFeNi3.0 high-entropy alloy prepared by selective laser melting can be adjusted by heat treatments to achieve desired mechanical properties. The formation of fine near-eutectic lamellar structures and coherent nano-precipitates contributes to the outstanding mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Wenhui Guo, Jingyuan Li, Mingfan Qi, Yuzhao Xu, Hamid Reza Ezatpour
Summary: The effects of heat treatment on the AlCoCrFeNiSi high-entropy alloy were studied, showing changes in microstructure, increased compression strength and microhardness, decreased friction coefficient, and improved corrosion resistance.
Article
Nanoscience & Nanotechnology
Deping Zhang, Dongdong Zhang, Tao Xu, Shanrong Chen, Yaqin Zhang, Xinlin Li, Jinhui Zhang
Summary: A high strength low-alloyed Mg-0.8Zn-0.2Zr (wt.%) alloy was fabricated through conventional extrusion at low temperature, showing superior properties compared to most commercial alloys containing heavy alloying elements.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Yuyu Li, Bowen Yang, Tingzhuang Han, Zhibing Chu, Leifeng Tuo, Chun Xue, Qianhua Yang, Xiaodong Zhao, Hong Gao
Summary: This study conducted experiments and model analysis on the effects of pre-deformation on the microstructure and plastic deformation mechanism of AZ31 magnesium alloy. The results showed that a higher pre-deformation strength led to a greater yield strength in the corresponding secondary compression process. Additionally, the activation of {1011} compression twin significantly influenced the secondary compression plasticity of the magnesium alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Lingyun Feng, Xixi Dong, Mingxu Xia, Xiangzhen Zhu, Gang Ji, Hailin Yang, Bin Wang, Eric A. Nyberg, Shouxun Ji
Summary: A novel high thermal conductivity (TC) and cost-effective die-cast Mg2.8Al3.8-La0.4Nd alloy with enhanced yield strength (YS) was developed. Compared with the commercially widely used AE44 magnesium alloy, the new alloy exhibited improved TC by 13.5% and enhanced YS through the formation of Al-based intermetallic phases at grain boundaries.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
B. Tripathy, S. R. K. Malladi, P. P. Bhattacharjee
Summary: The microstructure and properties of cobalt-free AlCrFe2Ni2 high entropy alloy were investigated both in the as-cast condition and after severe cold-rolling and annealing. The alloy showed a heterogeneous microstructure with a high fraction of ductile FCC phase, allowing heavy cold-rolling and resulting in intriguing microstructural features. After annealing, the alloy exhibited ultrafine microduplex structure with significant resistance to grain growth, leading to high yield and tensile strength coupled with appreciable elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Jinquan Guo, Chaozhongzheng Tang, Huan Sheng Lai
Summary: High-entropy alloys have great potential for application in nuclear power plants due to their excellent mechanical properties and resistance to radiation. In this study, the microstructure and mechanical properties of the Co32Cr28Ni32.Al-94 (4). Ti-06 (3) high-entropy alloy were investigated, revealing a single-phase, disordered, face-centered cubic solid-solution structure with satisfactory yield stress and tensile strength.
Article
Metallurgy & Metallurgical Engineering
Lixiang Yang, Yuanding Huang, Zhengquan Hou, Lv Xiao, Yuling Xu, Xiwang Dong, Fei Li, Gerrit Kurz, Baode Sun, Zhongquan Li, Norbert Hort
Summary: A Mg-3Y-2Gd-1Nd-0.4Zr alloy with low rare earth content was developed and prepared by sand casting with a differential pressure casting system. The aged alloy exhibited excellent comprehensive mechanical properties due to the formation of fine dense plate-shaped beta' precipitates during aging. This new developed alloy showed better properties compared to commercial WE43 alloy for fabricating large complex thin-walled components.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Metallurgy & Metallurgical Engineering
Yuling Xu, Yuanding Huang, Yuye Wang, Weiming Gan, Shiwei Wang, Emad Maawad, Norbert Schell, Norbert Hort
Summary: In this study, the texture evolution of two Mg materials during tension is investigated. It is found that pure Mg and Mg-15Gd alloy exhibit different deformation modes, with pure Mg showing a dominant prismatic slip and Mg-15Gd alloy showing a complex behavior of twinning and multiple slips. The critical resolved shear stress ratios between non-basal slip and basal slip are lower for Mg-15Gd alloy compared to pure Mg.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Metallurgy & Metallurgical Engineering
Shaozhu Wang, Yuanding Huang, Lixiang Yang, Ying Zeng, Yaozeng Hu, Xiao Zhang, Qiang Sun, Shaojun Shi, Guangyao Meng, Norbert Hort
Summary: The effects of adding different amounts of AlN nanoparticles on the microstructural evolution and strengthening mechanisms of Mg-3Sn-1Ca based alloys were investigated. It was observed that increasing the amount of AlN nanoparticles led to a significant decrease in grain size. The presence of AlN nanoparticles refined the primary crystal phases and provided more nucleation sites for the formation of magnesium. Additionally, the nanoparticles restricted grain growth during solidification. The addition of AlN nanoparticles resulted in improved tensile properties and hardness at both room temperature and high temperature.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Nanoscience & Nanotechnology
Zijian Yu, Yuanding Huang, Linlin Liu, Kang Shi, Baotian Du, Ke Liu, Shubo Li, Wenbo Du
Summary: A new strategy of using Li addition to solve the strength-ductility trade-off in Mg-Gd alloys is reported. Li addition promotes the precipitation of different phases and enhances the activity of dislocations, resulting in simultaneous improvement in yield strength and ductility. Moreover, Li addition reduces the density, increasing the specific yield strength.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Xiaoying Qian, Hong Yang, Chunfeng Hu, Ying Zeng, Yuanding Huang, Xin Shang, Yangjie Wan, Bin Jiang, Qingguo Feng
Summary: The study successfully improved the homogenized dispersion of nanoscale Al2O3 whiskers in Mg matrix composites by utilizing the potential difference between positive and negative ions. The addition of suitable amounts of SDBS and CTAB promoted more uniformly mixed composite powders, with the modified composite powders showing stronger cohesion.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Physical
Hongcan Chen, Tianci Xie, Quan Liu, Yuanding Huang, Bin Liu, Qun Luo, Qian Li
Summary: This study further improved the mechanical properties and thermal conductivity of Mg-Zn-La/Ce alloys through aging treatment, achieving good comprehensive performance. The addition of La/Ce forms a ternary tau 1 phase that reduces the supersaturation of the Mg matrix and has a positive effect on thermal conductivity. Precipitation has two opposite effects on thermal conductivity, reducing supersaturation but hindering the free movement of electrons and phonons.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Kang Shi, Shubo Li, Zijian Yu, Baotian Du, Ke Liu, Wenbo Du
Summary: The addition of Gd and Nd elements can refine the grains, weaken the texture, and promote the precipitation of fine particles, thereby improving the mechanical properties of the alloy. Pre-annealing treatment before hot extrusion can generate Mg5RE particles, which further refine the recrystallized grains by pinning the grain boundaries, while simultaneously improving the ductility and strength of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Chenchen Zhao, Yuhong Jin, Zijian Yu, Shubo Li, Fanjing Meng, Yanping Yuan, Yuanfen Cheng, Wenbo Du
Summary: This work presents a novel nanohybrid catalyst composed of amorphous B doped Fe-Ni bimetal hydroxide nano-sheets supported on multiwalled carbon nano-tubes for high-efficiency Zn-air batteries. The nanohybrid catalyst exhibited outstanding activity and stability for the oxygen evolution reaction, with an overpotential of 219.43 mV for 10 mA cm-2 and a Tafel slope of 43.1 mV dec-1. The fabricated Zn-air battery showed excellent energy efficiency and high cycling stability, indicating the potential of the nanohybrid catalyst for low-cost, efficient, and stable Zn-air batteries.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Lingling Fan, Mingyang Zhou, Yuwenxi Zhang, Hajo Dieringa, Xiaoying Qian, Ying Zeng, Xianwen Lu, Yuanding Huang, Gaofeng Quan
Summary: Heterogeneous TiC/AZ61 nanocomposites were fabricated to enhance both the strength and ductility of Mg matrix composites. The proportion of TiC-rich fine grain (FG) zones and TiC-rare coarse grain (CG) bands could be adjusted by changing the mechanical ball milling time. The composites achieved excellent mechanical properties with a volume fraction of 25% CG bands after 20 h of ball milling, which was attributed to the presence of geometrically necessary dislocations (GNDs) in the CG bands.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
Baotian Du, Zijian Yu, Kang Shi, Ke Liu, Shubo Li, Wenbo Du
Summary: This study investigated the effects of different ageing treatments on the mechanical properties of Mg-8Gd-3Y-0.5Ag-0.5Zr alloy. The combination of 2% pre-strain and two-stage ageing treatment (P2%TSA) showed the highest strengthening effect and generated multiple composite precipitates. Unlike the traditional β' phase strengthening mechanism, the composite precipitates exhibited better combined strengthening effect in the alloy.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xiuzhu Han, Tao Xiao, Zijian Yu
Summary: The microstructure, texture evolution, and strain hardening behavior of Mg-1Y and Mg-1Zn alloys were investigated under room temperature compression. The experimental results showed that Mg-1Zn alloy exhibited a conventional three-stage strain hardening curve, while Mg-1Y alloy exhibited a novel six-stage strain hardening curve. The different strain hardening behaviors were attributed to the different textures and the interactions between slip and twinning activities in the alloys. The findings provide insights into the relationship between microstructure, texture, and strain hardening behavior in Mg alloys.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2023)
Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Zijian Yu, Zhihao Xu, Ru Wang, Daqing Fang, Xiaobo Zhang, Xiaoru Zhang, Ruizhi Wu
Summary: Understanding the corrosion mechanism of magnesium (Mg) alloys and controlling the potential fluctuation are crucial for developing high-strength corrosion-resistant Mg alloys. This study reveals that the presence of different microstructures in Mg alloys can affect the corrosion rate and film formation. The structurally enhanced microstructure can reduce the potential fluctuation, leading to improved corrosion resistance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Hui Shi, Yuanding Huang, Lixiang Yang, Chunquan Liu, Hajo Dieringa, Chong Lu, Lv Xiao, Regine Willumeit-Roemer, Norbert Hort
Summary: This study investigates the creep behavior and microstructural evolution of sand-cast Mg-14Gd-0.4Zr alloy using compressive creep tests. The results show that the coherent distribution of beta' and beta' (F) phases effectively impedes dislocation movement and enhances creep resistance. However, with increasing creep time, the fine precipitate chains coarsen and transform into different phases, leading to stress concentration and increased creep strain.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Nanoscience & Nanotechnology
Zijian Yu, Yuanding Huang, Bin Peng, Ke Liu, Shubo Li, Wenbo Du
Summary: In-situ and ex-situ observations using high-angle annular dark-field scanning transmission electron microscopy reveal the formation mechanism of beta(1) phase in age-hardenable magnesium-rare earth alloys. The beta(1) phase is transformed from beta(F)' phase through short-range solute diffusion, atomic shuffle, and shear mechanism. This study provides direct evidence and resolves the long-standing controversy.
SCRIPTA MATERIALIA
(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)