Review
Materials Science, Ceramics
Zhang Ye, Zeng Yuping
Summary: This article systematically summarizes the research progress, mechanical properties, and reliability of porous silicon nitride (Si3N4) ceramics fabricated by self-propagating high temperature synthesis (SHS). It explores a rapid and low-cost preparation method and prospects the future development direction.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
C. Keller, F. Moisy, N. Nguyen, S. Eve, A. Dashti, B. Vieille, A. Guillet, X. Sauvage, E. Hug
Summary: The present study investigated the mechanical behavior of severely plastic-deformed Cu-Al composite wires with different diameters and heat treatments. It was found that heat-treated wires exhibited improved ductility and yield stress compared to those without heat treatment, and the formation of intermetallic compounds significantly influenced the mechanical properties.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Ceramics
Shuai Wang, Xianjuan Pang, Zhiyuan Zhang, Baolin Chang, Jun Yang, Chenfei Song, Sanming Du, Yongzhen Zhang
Summary: Single-phase polycrystalline Mo2BC ceramic bulks were successfully synthesized using spark plasma sintering method at a low synthesis temperature of 1300 degrees C. The ceramic exhibited high Vickers hardness and typical brittle features, with intergranular and transgranular fractures as the main failure modes.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Hongyang Cao, Hongliang Li, Dan Wang, Hongbo Xia, Ke Han, Zeyu Wang, Qiang Zhu, Duo Liu
Summary: This investigation examined the feasibility of laser welding of TC4 titanium alloy and SiCp/6092Al matrix composites with different lap structures. The results showed that the welding formation, microstructure, mechanical properties, and intermetallic compounds varied between the two different laser lap joints. The TC4/AMC lap joints exhibited less porosity and cracks and achieved a higher tensile shear strength compared to the AMC/TC4 joint.
Article
Materials Science, Multidisciplinary
Zhonghua Li, Faqiang Shi, Limeng Liu, Jozef Vleugels, Shuigen Huang
Summary: TaCx ceramics with 20 mol% Fe, Co or Ni addition were prepared by hot pressing at 1800 degrees C. Different intermetallic compounds were formed due to reactions with Ta, and microstructure was influenced by the C:Ta ratio. The addition of Ni helped to refine microstructures and improve mechanical properties of the composites. TaC0.5-20 mol% Fe, Co, Ni compositions showed good flexural strength and fracture toughness despite high Ta2C content.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Ceramics
Sina Kavak, Kubra Gurcan Bayrak, Mustafa Bellek, Siddika Mertdinc, Faiz Muhaffel, Hasan Gokce, Erhan Ayas, Bora Derin, M. Lutfi Ovecoglu, Duygu Agaogullari
Summary: High entropy carbide ceramics were prepared through high energy ball milling and spark plasma sintering, and were characterized in terms of composition, density and microstructure. The ceramics exhibited a single-phase FCC structure at all sintering temperatures and showed high hardness and wear resistance values.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Jagadish Parida, Subash Chandra Mishra, Ajit Behera
Summary: This study investigated the effect of iron on the Ti50Ni(50-X)FeX alloy fabricated by powder metallurgy. The results showed that the chemical composition, phase evolution, and mechanical properties of the powder and sintered samples were influenced by the iron content.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
J. Munoz-Saldana, A. Valencia-Ramirez, L. A. Castillo-Perea, S. Diaz-De la Torre, L. A. Caceres-Diaz, J. M. Alvarado Orozco, A. L. Giraldo Betancur, U. Schulz
Summary: The addition of Y element affects the oxidation behavior of NiAl alloys, with proper Y content significantly reducing oxidation kinetics and extending the lifespan of thermal barrier coatings.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Sebastian Matthes, Marcus Glaser, Emina Vardo, Yesenia Haydee Sauni Camposano, Konrad Jaekel, Jean Pierre Bergmann, Peter Schaaf
Summary: The aim of this study is to investigate the reaction processes and characteristics of reactive multilayer systems under extrinsic induced tensile stress. The properties during and after the reaction, including propagation velocity, temperature regime, and formed phases, were studied using different samples. The results provide important insights for the stability and reliability of the reactive Al/Ni multilayer system under external tensile stresses.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
E. A. Juarez-Arellano, A. Martinez-Garcia, B. Winkler, T. Perez-Lopez, J. M. Padilla
Summary: Mechanically activated self-propagating high-temperature synthesis (MA-SHS) is commonly used to synthesize titanium silicides, particularly Ti5Si3. However, determining the milling conditions necessary for mechanically activating (MA) or inducing (MI) the reaction remains a challenge. This study explores the parametrization of mechanically induced self-propagating high-temperature synthesis (MI-SHS) of Ti5Si3. A simple kinematic approach is used to parameterize the mechanically induced reaction based on milling parameters, such as angular velocity and grinding time. The energy required for inducing the MI-SHS reaction of Ti5Si3 is predicted using a kinetic approach that allows for complete parametrization.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Xixi Dong, Hamza Youssef, Xiangzhen Zhu, Yijie Zhang, Shihao Wang, Shouxun Ji
Summary: The addition of titanium diboride nanoparticles can enhance the strength and maintain ductility of die-cast AlSi9Cu2Mg alloy. Fe-rich compounds and Q-phase were prone to cracking after the addition of titanium diboride nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Yilin Sun, Chong Li, Yongchang Liu, Ran Ding, Xiangfa Liu, Su-Hyeon Kim, Liming Yu
Summary: The effect of Ni/Cu-rich aluminides on the strength of Al-15%Mg2Si-Cu-Ni alloys varies at different temperatures, with a significant contribution at high temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Optics
Tao Tao, Jinshui Liu, Dianwu Zhou, Huiming Li
Summary: Microstructure and mechanical properties were studied in laser fusion welded AZ31B-alloy to DP590-steel. The diffusion behavior of Al and Sn, as well as the formation of FeAl compound reaction layer, were investigated. The addition of Sn powder improved the joint properties by accelerating the flow of molten pool and leading to phase composition transformation. However, excessive laser power resulted in overreaction and the production of defects, leading to decreased joint performance.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Hadi Jahangiri, Samira Mohagheghi, Armin Asghari Alamdari, Rifat Yilmaz, Kubra Gurcan Bayrak, Feng Yu, Hassan Ghadbeigi, Erhan Ayas, Amir Motallebzadeh
Summary: Light-weight high entropy alloys (LWHEAs) are equiatomic or near-equiatomic alloys consisting of at least five elements, designed with low-density elements like Al and Ti to achieve reduced overall density and improved mechanical properties. A new LWHEAs alloy (Al2CrFeMnTi) has been successfully synthesized with a multiphase microstructure, high hardness, and some level of ductility observed before failure, potentially linked to the minimal strain hardening of the BCC phase and the formation of ultra-fine L-21 precipitates within the BCC phase.
Article
Materials Science, Multidisciplinary
Feng Kong, Mingdong Yi, Guangchun Xiao, Zhaoqiang Chen, Jingjie Zhang, Hui Chen, Li Wang, Jun Wu, Chonghai Xu
Summary: The cBN-Al2O3-Al cutting tool material prepared by dual power spark plasma sintering method exhibited excellent mechanical properties, with optimal performance observed at 50 wt% Al2O3 content.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Jian Wang, Lingzhong Meng, Zhang Zhang, Baisheng Sa, Xiaoxiao Fu, Liyuan Sheng, Daokui Xu, Yufeng Zheng
Summary: A new ternary compound, Mg11-xZnxSr, in the Mg-Zn-Sr system was analyzed using SEM, EDS, XRD, and TEM. The crystallized phase belonged to the tetragonal I41/amd space group and had the Cd11Ba prototype, with Mg atoms doping into the Zn11Sr crystal lattice. The Rietveld refinement and computational results showed a decrease in lattice parameters with decreasing Mg concentration and an increase in elastic constants with higher Zn content in Mg11-xZnxSr compounds.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Metallurgy & Metallurgical Engineering
B. J. Wang, D. K. Xu, X. Q. Zhuang, L. Y. Sheng
Summary: The tensile behaviors of Mg-8%Li and Mg-8%Li-6%Zn-1.2%Y alloys were compared. The plastic instability of Mg-8%Li alloy was significant, while the addition of I-phase (Mg3Zn6Y) in Mg-8%Li-6%Zn-1.2%Y alloy enhanced tensile strength and eliminated plastic instability, but reduced ductility.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Multidisciplinary
Genming Lai, Junyu Jiao, Chi Fang, Yao Jiang, Liyuan Sheng, Bo Xu, Chuying Ouyang, Jiaxin Zheng
Summary: This article investigates the deposition mechanism of lithium on copper substrates in anode-free lithium metal batteries, revealing the effects of different copper surfaces on lithium. It also proposes a suggestion to improve the stability of the system by enhancing the structure of commercial copper foils.
Article
Chemistry, Physical
Junke Jiao, Jihao Xu, Chenghu Jing, Xiangyu Cheng, Di Wu, Haolei Ru, Kun Zeng, Liyuan Sheng
Summary: The effect of laser micro-texturing on the laser bonding of CFRTS and TC4 alloy was studied. It was found that the laser micro-textures with different scanning spacings result in different temperature field distributions on the PA6 interface, leading to a change in heat input on the CFRTS surface. When the laser scanning spacing is 0.3 mm, the joint strength can reach 14.3 MPa.
Review
Chemistry, Analytical
Junke Jiao, Xiangyu Cheng, Jiale Wang, Liyuan Sheng, Yuanming Zhang, Jihao Xu, Chenghu Jing, Shengyuan Sun, Hongbo Xia, Haolei Ru
Summary: Carbon fiber-reinforced composites are widely used in lightweight manufacturing in various industries due to their excellent mechanical properties. Laser machining technology has advantages in processing carbon fiber-reinforced composites, but there are also defects such as heat affected zone, delamination, and fiber extraction. Many works have been carried out to improve the quality of laser machining in carbon fiber-reinforced composites.
Article
Thermodynamics
Siyuan Cheng, Yinan Xiao, Xueshi Li, Hongyang Lin, Peng Hua, Liyuan Sheng
Summary: Elastocaloric refrigeration using superelastic NiTi alloys has gained attention due to its energy-saving potential, environmental friendliness, and low cost. This article presents an analytical model to achieve continuous operation of elastocaloric devices by physically separating the cold and hot areas on NiTi alloys, which facilitates efficient heat release and absorption. Experimental verification was conducted using rotating bending NiTi sheets, and the effects of operation variables on cooling performance were studied. The results are significant for improving the cooling performance of continuous operating elastocaloric devices.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
Article
Chemistry, Physical
Qiaoli Wang, Rui Li, Weixin Xie, Fang Yang, Beining Du, Liyuan Sheng
Summary: In this study, NiAl-Cr(Mo) eutectic alloys with different Ho and Hf additions were fabricated and heat-treated to investigate the synergistic influence of strengthening elements and heat treatment. The results showed that Hf addition led to the formation of Ni2AlHf Heusler phase, while Ho promoted the formation of Ni2Al3Ho phase. Heat treatment affected the microstructure of the alloy and improved its mechanical properties, including increased fracture toughness.
Review
Chemistry, Physical
Hui Zhao, Chaochao Zhao, Weixin Xie, Di Wu, Beining Du, Xingru Zhang, Min Wen, Rui Ma, Rui Li, Junke Jiao, Cheng Chang, Xingchen Yan, Liyuan Sheng
Summary: Titanium (Ti) and its alloys are widely used in aerospace, petrochemical, and medical fields due to their excellent mechanical properties, corrosion resistance, and biocompatibility. However, they face challenges in severe or complex environments. Surface modification through laser cladding has been commonly used to improve the properties and function of Ti and its alloys. This article reviews the technology and development of laser cladding on Ti and its alloys, including cladding technology, materials, and coating function.
Article
Chemistry, Multidisciplinary
Yutian He, Xinghua Zhu, Changxin Zhang, Zhongqing Liu, Baobao Cao, Liyuan Sheng, Yang Yang, Qingguo Feng, Ning Wang, Jian Zhen Ou, Yi Xu
Summary: Electrochemical splitting of water is an efficient pathway to the energy revolution. Efficient non-noble metal catalysts have been developed to overcome the challenge of high cost. A FeCoNiWMo high-entropy alloy with a rhomboidal structure was prepared, promoting water splitting with fast electron transport.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Analytical
Jiajia Wang, Bin Wang, Chenhu Yuan, Aibing Yu, Wenwu Zhang, Liyuan Sheng
Summary: The problems of recast layer, oxide layer, and heat-affected zone in conventional laser machining can be significantly reduced by using coaxial waterjet-assisted laser scanning machining. This method allows the machining of nickel-based special alloy with minimal thermal damage due to the high specific heat capacity of water. Experimental results have shown that compared to laser machining in the air, the thermal damage thickness in CWALSM is smaller and the hole taper is reduced by 106%. The evaluation score for this article is 8 out of 10.
Article
Chemistry, Physical
Li Zhang, Wentai Ouyang, Di Wu, Liyuan Sheng, Chunhai Guo, Licheng Ma, Zhihao Chen, Zhenkai Zhu, Yongxiao Du, Peijuan Cui, Zhanlin Hou, Wenwu Zhang
Summary: Repairing processing, using welding technique, is important for reducing economic loss of damaged high-cost Ti-6Al-4V components. An appropriate matching technique is important for improving welding performance. In this research, ALSP and SLSP techniques were utilized to decrease the influence of macro welding defects on laser-welded Ti-6Al-4V joints.
Article
Chemistry, Physical
Junke Jiao, Shengyuan Sun, Zifa Xu, Jiale Wang, Liyuan Sheng, Jicheng Gao
Summary: This paper presents a hybrid manufacturing process using laser precision packaging technology and Direct Metal Laser-Sintering (DMLS) technology to prepare complex cavity structure parts with high surface quality. The results show that this process effectively solves the problems of poor surface quality and powder sticking in closed inner cavities.
Article
Materials Science, Multidisciplinary
Li Zhang, Wentai Ouyang, Zifa Xu, Xiu Qin, Yirong Yao, Min Wen, Chunhai Guo, Wenwu Zhang, Liyuan Sheng
Summary: Welding is an important method for connecting precision components, but it can decrease performance due to internal stress and crystal anisotropy. In this study, asynchronized laser shock peening (ALSP) and synchronized laser shock peening (SLSP) techniques were used to improve the performance of laser welded Ti-6Al-4V thin plates. The results showed that SLSP processing significantly improved the mechanical properties of the joint and reduced stress concentration, achieving performance levels close to the original material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yufan Liu, Shengyuan Sun, Jiale Wang, Wentai Ouyang, Jihao Xu, Liyuan Sheng, Zifa Xu, Haolei Ru, Yongyue Liu, Junke Jiao
Summary: A hybrid laser polishing technique combining pulsed laser and continuous wave laser was applied to polish the surface of LDED Inconel 718 samples. The results showed that the remelted layer thickness increased to 50 mm while preserving the columnar microstructure, and the grain size decreased. The wear rate at 25°C decreased by 70.9%, and the average coefficient of friction decreased from 0.42 to 0.29 after laser polishing. The enhancement in wear resistance was attributed to the formation of small-sized and homogeneously distributed fine grains with low angle boundaries.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Chao Yang, Liyuan Sheng, Chaochao Zhao, Di Wu, Yufeng Zheng
Summary: The corrosion of magnesium alloys poses a limitation to their practical applications. By incorporating corrosion-resistant nanoparticles in microarc oxidation (MAO) coating, the corrosion resistance performance can be enhanced. However, excessive addition of these nanoparticles may lead to other issues. In this study, the structure of the MAO passivation layer was regulated using F- salts to generate a low dielectric constant MgF2 phase, reducing the high discharge voltage.
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)
