Article
Metallurgy & Metallurgical Engineering
Ming-fan Qi, Yong-lin Kang, Yu-zhao Xu, Jing-yuan Li, Ai-sen Liu
Summary: A new technique called distributary-confluence runner (DCR) was used to prepare semisolid slurry and combined with die-casting for rheological die-casting (R-DC) of A356 alloy. The study found that the alloy prepared via R-DC showed improved mechanical properties compared to that prepared via traditional die-casting (DC), with increased tensile strength, yield strength, and elongation.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Jianfei Hao, Baoyi Yu, Jiancong Bian, Li Zheng, Sainan Nie, Runxia Li
Summary: The study revealed differences in microstructure, ageing behavior, and mechanical properties of Al-17.8Si-4.3Cu-0.4Mg alloy formed by different processes. The semisolid extruded alloy exhibited higher strength and ductility due to a more uniform microstructure and finer precipitating phase. Double-ageing hardness peaks were observed in the age-hardening curves of the alloy, influenced by the precipitation sequence.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Wenming Jiang, Junwen Zhu, Guangyu Li, Feng Guan, Yang Yu, Zitian Fan
Summary: The addition of SiCp and squeeze casting have significant impacts on microstructure and mechanical properties of the 6082 aluminum alloy. The use of SiCp and squeeze casting can significantly improve the mechanical properties of the 6082 aluminum alloy, including increasing tensile strength, yield strength, elongation, elastic modulus and hardness.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Xusheng Chang, Gang Chen, Wei Sun, Hongming Zhang, Guannan Chu, Xin Zhang, Fei Han, Wencong Zhang, Zhiming Du
Summary: In this study, 7075 Al alloy was used in squeeze casting for an asymmetric part to investigate solidification defects, microstructures, and mechanical properties under different forming pressures. Increasing forming pressure helps improve liquid/solid feeding to counteract serious shrinkage in 7075 Al alloy, leading to avoidance of solidification defects and obtaining fine equiaxed grains. Additionally, increasing forming pressure enhances strengths of the part while reducing ductility due to work hardening from solid feeding.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hong Jiang, Linfan Zhang, Biwei Zhao, Ming Sun, Meifeng He
Summary: In this study, ZL205A castings prepared by squeeze casting were investigated regarding the effects of solution and ageing treatment on their microstructure and mechanical properties. The results indicated that most of the theta (Al2Cu) and T (Al12CuMn2) phases in the squeeze-cast ZL205A dissolved into the alpha (Al) matrix after solution treatment. Fine precipitates gradually increased with ageing time. The specimen aged for 6 hours exhibited the highest ultimate tensile strength of 467 MPa and an elongation of 15.1%, demonstrating good comprehensive mechanical properties.
Article
Materials Science, Multidisciplinary
Jian Feng, Saiheng Hou, Song Chen, Fan Zhang, Yibao Chen, Daquan Li
Summary: In this study, the evolution of microstructure and mechanical properties of semisolid die-casting Al-6Mg-2Si-0.6Mn alloy was investigated. Micro-alloying with Ca and Mo was found to have a positive effect on refining the eutectic Mg2Si phase and promoting the formation of Al18Mg3Mo2 and a-Al(Fe, Mn, Mo)Si phases. The addition of Ca and Mo also resulted in an increase in ultimate tensile strength and elongation of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Jianyu Li, Shulin Lu, Shusen Wu, Dijia Zhao, Wei Guo
Summary: The strength and ductility of squeeze cast Al-Cu-Mn-Ti alloy have been simultaneously increased after heat treatment. The disappearance of Al2Cu phase and the uniform distribution of Al12Mn2Cu and theta'' phases within the alloy after solution and aging treatment contribute to the significant improvement in the mechanical properties. Precipitation strengthening caused by the two types of precipitates is the main factor for the enhanced strength and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Shu-lin Lu, Di-jia Zhao, Xiao-yuan Ji, Wei Guo
Summary: The comprehensive mechanical properties of a low Y and Ni containing magnesium alloy can be further improved by doping with Al element and ultrasonic vibration treatment. Doping Al into the alloy reduces the amount of LPSO structure and precipitates Al2NiY phases near the block LPSO structure. Ultrasonic vibration treatment modifies the Al2NiY phase into short flakes and distributes them uniformly in the matrix.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Chemistry, Physical
Jufu Jiang, Jing Yan, Yingze Liu, Guoquan Hu, Ying Wang, Changjie Ding, Dechao Zou
Summary: AlSi9Mg aluminum alloy flywheel housing components were formed via squeeze casting and T6 heat treatment was applied to improve their microstructure and mechanical properties. The results showed that T6 heat treatment changed the morphology of the eutectic silicon in the microstructure and affected the mechanical properties. The optimal heat treatment parameters were determined to be a solution temperature of 540°C, solution time of 180 min, aging temperature of 175°C, and aging time of 300 min. Precipitation of strengthening phases during T6 heat treatment contributed to the improvement of casting properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Yuxiang Han, Sihang He, Tao Chen, Jianbo Shao, Chuming Liu, Zhiyong Chen, Zhao Yang
Summary: This research investigated the microstructure and mechanical properties of Mg97Y2Zn1 alloys rolled at different temperatures. The pre-rolled alloy had alpha-Mg matrix, 18R LPSO phase, and 14H LPSO phase. After rolling, both the 18R LPSO phase and 14H LPSO phase showed obvious kinks, and the alloy rolled at 500 degrees C experienced severe dynamic recrystallization. Tensile testing indicated that the alloy rolled at 450 degrees C had higher yield strength, while the alloy rolled at 500 degrees C had higher ultimate tensile strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Civil
Nadeem Ahmad Mufti, Moiz ul Islam, Muhammad Asad Ali, Muhammad Huzaifa Raza, Naveed Ahmed
Summary: Squeeze casting is an attractive alternative for casting aluminum alloys, which can enhance their mechanical and microstructural properties. This study focuses on defect-free casting for structural applications and investigates the effects of squeeze pressure, melt temperature, and die temperature on mechanical properties and microstructural attributes. The results show that squeeze pressure has the most significant influence on improving mechanical properties, followed by melt temperature and die temperature. Gray relational analysis is used to determine the optimal input parameters for superior microstructure and mechanical properties. The application of high squeeze pressure and die temperature, along with a reasonable melt temperature, improves grain structure and reduces casting defects.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Zhiyu Chang, Qingchen Deng, Qiao Lan, Jian Feng, Daquan Li, Baoliang Liu, Yujuan Wu, Liming Peng, Wenjiang Ding
Summary: This study characterized and analyzed the microstructure and mechanical properties of Mg alloy castings prepared by rheo-diecasting and compared them with conventional diecasting. The solution-treated rheo-diecast alloy showed a significant improvement in elongation but a decrease in room-temperature tensile mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Yuanke Fu, Liping Wang, Sicong Zhao, Yicheng Feng, Lei Wang
Summary: This study investigated the effects of Al content on the microstructure evolution and mechanical properties of as-cast Mg-11Gd-2Y-1Zn alloy. The results showed changes in microstructure and mechanical properties with increasing Al content, with specific improvements seen at 1wt.% and 3wt.% Al additions.
Article
Materials Science, Multidisciplinary
Zhanwei Su, Zhenyu Xiao, Zhuoran Zeng, Binhui Jiang, Chao Ma, Peng Yang, Yuanyuan Wang, Shiwei Xu
Summary: This study investigated the effects of Ni content on the microstructure and mechanical properties of Al-5.0Cu-1Mn-based alloys. The results showed that Ni alloying can refine the grain size and enhance castability. At low Ni content, Ni atoms participate in forming Al7Cu4Ni at grain boundaries and segregate to the interface between a-Al and AlCu3Mn2 phase, inhibiting AlCu3Mn2 growth. The optimum mechanical property is achieved with 1% Ni addition, leading to superior ultimate tensile strength, yield strength, and elongation compared to current commercial alloys.
MATERIALS & DESIGN
(2023)
Article
Automation & Control Systems
Sergey Borisovich Sidelnikov, Vladimir Nikolaevich Baranov, Igor Lazarevich Konstantinov, Evgeniy Yuryevich Zenkin, Ekaterina Sergeevna Lopatina, Aleksandr Innokentyevich Bezrukikh, Denis Sergeevich Voroshilov, Pavel Olegovich Yuryev, Yulbarskhon Nabievich Mansurov, Marina Vladimirovna Voroshilova, Irina Nikolaevna Belokonova, Roman Ilsurovich Galiev
Summary: Investigations were conducted on the rolling modes of plates made from an experimental aluminum-magnesium alloy with a scandium content of 0.10-0.11 wt.%. It was found that alloying with scandium significantly improved the grain refinement and strength properties of the semi-finished products. Rational reduction modes were proposed based on physical and computer modeling, allowing for the production of deformed semi-finished products with the desired mechanical properties. The findings also revealed that annealing had minimal effect on the mechanical properties, while cold rolling resulted in increased strength.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Shulin Lu, Xiong Yang, Liangyan Hao, Shusen Wu, Xiaogang Fang, Jing Wang
METALS AND MATERIALS INTERNATIONAL
(2018)
Article
Thermodynamics
Liangyan Hao, Wei Xiong
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2020)
Article
Chemistry, Physical
Biao Hu, Soumya Sridar, Liangyan Hao, Wei Xiong
Article
Thermodynamics
Liangyan Hao, Andrei Ruban, Wei Xiong
Summary: The development of a third-generation thermodynamic database aims to enhance the predictability and reliability of the CALPHAD method. By using new models, the study reoptimized Cr, Ni, and the Cr-Ni system, focusing on thermodynamic modeling of pure elements and solution phases, with particular attention to describing magnetic properties.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Chenliang Chu, Liangyan Hao, Weiping Chen, Wei Xiong, Jiacheng Niu, Zhiqiang Fu
Summary: The phase transformation, microstructure, and mechanical behavior of a non-equiatomic Ti10Fe30Co30Ni30 medium entropy alloy were systematically studied. The study found that the alloy's composition and microstructure changed under different states, which influenced its mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Yunhao Zhao, Qiaofu Zhang, Wei Xiong, Hao Liangyan
Summary: Understanding alloy phase transformations during continuous cooling is crucial for post-processing design and optimization. This study developed continuous-cooling-transformation (CCT) diagrams for Inconel 718 alloys and found NbC and 8 precipitates after cooling. The homogenization time and manufacturing methods were discovered to affect Nb homogeneity, which significantly influenced the precipitation process. Additionally, the formation of subgrains after cooling at 0.1 K/s resulted in the highest hardness.
MATERIALS CHARACTERIZATION
(2022)
Article
Metallurgy & Metallurgical Engineering
Zhi-yong Yang, Wei-ping Chen, Liang-yan Hao, Chen-liang Chu, Da-hai Zeng, Wei Xiong, Zhi-qiang Fu
Summary: The microstructures and mechanical properties of non-equiatomic medium-entropy alloys (CuNi)(100-x)Co-x were investigated in this study. The results showed that increasing the Co content led to an increase in yield strength and a decrease in elongation. Nano-indentation tests revealed a significant difference in hardness between the two phases, with the (Ni, Co)-rich phase being nearly twice as hard as the Cu-rich phase.
Article
Chemistry, Physical
Wei Xiong, Liangyan Hao
Summary: Thermodynamic modeling of molten salt systems is crucial in various clean energy applications. CALPHAD method, as a powerful computational approach, has been widely used, but there is a need for evaluation and improvement of unary thermodynamic models in molten salt systems.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2022)
Article
Thermodynamics
Soumya Sridar, Liangyan Hao, Wei Xiong
Summary: Molten salt electrolysis is used to recover actinides from spent nuclear fuels, using a molten LiCl-KCl electrolyte. This study employed the CALPHAD approach to thermodynamically model the KCl-PrCl3 and KCl-LiCl-PrCl3 systems for the first time. Experimental data and thermodynamic functions were utilized for the assessment of these systems, and good agreement was observed between the experimental and calculated results. This work contributes to determining the solubility limit of PrCl3 in molten LiCl-KCl electrolytes and improving the efficiency of the pyrochemical process.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2023)
Article
Chemistry, Physical
Liangyan Hao, Soumya Sridar, Wei Xiong
Summary: Thermodynamic modeling and optimization were conducted to investigate the thermodynamic behavior evolution of KCl-LiClNaCl and KCl-LiCl-NdCl3 systems, as well as their constituent binary systems. The study provides insights into the thermodynamic properties of the electrolyte and the variation of solubility limits of different impurities during the electrorefining process.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Gang Chen, Yuankang Wang, Xizheng Wang, Yunhao Zhao, Qi Dong, Liangyan Hao, Min Hong, Miao Guo, Haiyu Qiao, Wei Xiong, Liangbing Hu
Summary: In this study, a target-sintering approach was developed to synthesize single-phase intermetallics. Utilizing the ultrafast high-temperature sintering method, a range of single-phase Ti-Al intermetallics were successfully synthesized, demonstrating the potential for more controllable properties in material design and promising applications in various intermetallic and alloy systems.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Miao Guo, Qi Dong, Hua Xie, Chengwei Wang, Yunhao Zhao, Xizheng Wang, Wei Zhong, Zhihan Li, Ruiliu Wang, Yuankang Wang, Liangyan Hao, Shuaiming He, Gang Chen, Wei Xiong, Ji-Cheng Zhao, Liangbing Hu
Summary: Cermets, which combine the hardness of ceramics and the ductility of metals, have the potential to meet the increasing demands for new materials in harsh environments in energy generation and conversion. However, sintering cermet materials faces challenges such as metal volatilization, grain coarsening, and poor wettability between metal and ceramic. In this study, an ultrafast high-temperature sintering method was used to address these challenges by achieving good wettability and controlling grain growth. The results showed a dense microstructure, minimal metal loss, and uniform grain size, leading to good mechanical properties and oxidation resistance.
Proceedings Paper
Materials Science, Multidisciplinary
Xiong Yang, Shusen Wu, Shulin Lu, Liangyan Hao, Xiaogang Fang
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS
(2018)
Proceedings Paper
Materials Science, Multidisciplinary
Shulin Lu, Xiong Yang, Liangyan Hao, Shusen Wu
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS
(2018)
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)