Article
Crystallography
Jianhua Liu, Jie Sun, Qingqiang Chen, Laixiao Lu, Yanhua Zhao
Summary: The study found that Mg-Gd-Y alloy tubes produced using extruded bar billets and water cooling method exhibit higher yield strength and elongation due to their fine grain size, uniform small grains, and randomized texture.
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
Materials Science, Multidisciplinary
Jun Xu, Bin Jiang, Yuehua Kang, Jun Zhao, Weiwen Zhang, Kaihong Zheng, Fusheng Pan
Summary: Curve extrusion processes, including symmetric curve extrusion (SCE) and asymmetric curve extrusion (ACE) processes, were proposed to fabricate Mg-3Al-1Zn (AZ31) alloy sheets with the aim of improving planar anisotropy. The microstructures and mechanical properties of the fabricated sheets were analyzed and compared with traditional extrusion (TE) sheets. The results showed that both SCE and ACE sheets exhibited finer grain size, more uniform microstructure, and unique textures, indicating improved planar anisotropy.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ming Gao, Zheng Ma, Iniobong P. Etim, Li-Li Tan, Ke Yang
Summary: The study aimed to investigate the influence of microstructural evolution on mechanical and corrosion properties of Mg-2Zn-0.5Nd alloy during room-temperature drawing, and found that grain refinement and texture transformation significantly affected the mechanical and corrosion resistance of the alloy.
Article
Materials Science, Multidisciplinary
Joung Sik Suh, Byeong-Chan Suh, Jae Ok Choi, Young Min Kim, Bong Sun You
Summary: This study investigates the effect of extrusion temperature on room temperature tensile properties of as-extruded AZ91 plates regarding microstructure and texture development. The research reveals that, contrary to expectations, yield strength increases with extrusion temperature despite an increase in grain size. Stronger basal texture was found to play a dominant role in increasing yield strength.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Jingkai Feng, Dingfei Zhang, Hongjun Hu, Yang Zhao, Xia Chen, Bin Jiang, Fusheng Pan
Summary: During semi-solid extrusion, AZ31 magnesium alloy exhibits a higher nucleation rate for new fine grains and limited twinning activation, resulting in a homogeneous microstructure and improved mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Industrial
Dijia Zhao, Jian Qin, Shulin Lue, Jianyu Li, Wei Guo, Shusen Wu, Yaohua Zhang
Summary: Ultrafine-grained AZ31 alloy was successfully fabricated using a novel continuous squeeze casting-extrusion process. The extrusion ratio had a significant effect on the grain size and mechanical properties.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Min-jie Liang, Jie Zheng, Huan Liu, Bao-xing Yao
Summary: This study investigates the microstructure, texture evolution, and mechanical properties of AZ31 magnesium alloy during the cyclic expansion extrusion with the asymmetrical extrusion cavity (CEE-AEC) process. The results show that after 3 passes, the microstructures are refined and the textures are deflected, leading to significant improvements in the mechanical properties of the alloy.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Metallurgy & Metallurgical Engineering
Wei Liu, Yu Su, Yuntao Zhang, Liwen Chen, Hua Hou, Yuhong Zhao
Summary: This study investigates the variation in LPSO structures, dynamic recrystallization, and mechanical performance of Mg89Y4Zn2Li5 alloys fabricated at different extrusion speeds and die angles. It is found that the block 18R LPSO structures elongate while the lamellar 14H LPSO structures dissolve. The hot-extruded alloys exhibit a full DRX microstructure, and the DRX grain size decreases with decreasing extrusion speed and die angle. The Mg89Y4Zn2Li5 alloy achieves an excellent strength-ductility balance at a low extrusion speed and small die angle.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Metallurgy & Metallurgical Engineering
Jong Un Lee, Sang-Hoon Kim, Dong Hee Lee, Hyun Ji Kim, Young Min Kim, Sung Hyuk Park
Summary: The bending formability of an extruded Mg-9Al-1Zn-0.3Mn-0.9Ca-0.6Y-0.5 MM alloy at room temperature is significantly improved through a combined precompression and subsequent annealing treatment. Increasing the precompression amount and annealing temperature enhances the bending formability of the alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Nanoscience & Nanotechnology
Jianyue Zhang, Peng Peng, Alan A. Luo, Jia She, Aitao Tang, Fusheng Pan
Summary: Dynamic precipitation and grain refinement occurred during low temperature extrusion of ZK60 alloy, leading to improved mechanical properties such as tensile strength and elongation. The presence of dynamic precipitates promoted nucleation of new grains and enhanced the alloy's strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
R. G. Li, H. R. Li, H. C. Pan, D. S. Xie, J. H. Zhang, D. Q. Fang, Y. Q. Dai, D. Y. Zhao, H. Zhang
Summary: This study found that ultra-high strength can be obtained in a simple binary Mg-Gd alloy with a small extrusion ratio. This is mainly attributed to the strong texture and internal dislocation pinning in the un-dynamically recrystallized region. Furthermore, aging precipitation only occurs within the large un-DRXed grains, leading to a significant increase in tensile yield strength. Thus, the ultra-high strength of this alloy is mainly related to texture strengthening and precipitation strengthening.
SCRIPTA MATERIALIA
(2021)
Article
Nanoscience & Nanotechnology
Chao Meng, Juntao Yang, Zhengqiang Zhang, Jianlin Yang, Weibin Zhuang, Xuelei Wang, Xin Ren, Shizhen Bai, Yongheng Jiang
Summary: The study showed that laser bionic treatment can effectively improve the mechanical properties of TIG welded magnesium alloy joints by refining grain size and adjusting crystal orientations.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yongxiao Wang, Guoqun Zhao, Xiao Xu, Xiaoxue Chen
Summary: The study conducted several extrusion experiments on 2195 Al-Li alloy to investigate the effects of extrusion parameters on microstructure, texture, and mechanical properties. The results showed that the formation of cylindrical fiber grains and strong fiber textures improved the longitudinal strength of the profile.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Xin Zhang, Keqiang Su, Huijun Kang, Lei Liu, Enyu Guo, Zongning Chen, Tongmin Wang
Summary: The microstructure and mechanical properties of a dual-phase Mg-9Li-1Zn (LZ91) alloy after rolling are studied. The rolling process leads to squashing and stretching of the Mg-rich phase and refinement of the Li-rich phase, with precipitation of secondary Mg-rich phases and Zn-containing phases. The strength of the alloy is greatly enhanced due to the combined effects of precipitation strengthening, fine-grain strengthening, and processing strengthening.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yusuke Matsuoka, Mingzhe Bian, Xinsheng Huang, Yuhki Tsukada, Toshiyuki Koyama, Yasumasa Chino
Summary: The relationship between Zn content and room temperature mechanical properties of dilute Mg-xZn-0.1Ca alloy sheets was investigated. Increasing the Zn content resulted in a significant improvement in the formability. The relative activity of deformation modes did not show apparent differences between different Zn contents. The appearance of tilted basal poles and the development of TD-split texture contributed to the enhanced formability. The efficient scheme for parameter fitting required for VPSC simulation was proposed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mingzhe Bian, Xinsheng Huang, Naobumi Saito, Yasumasa Chino
Summary: This study explores the feasibility of improving the mechanical properties of explosive welded clad plates through subsequent hot-rolling and reveals that increasing the thickness reduction per pass or decreasing the rolling temperature can enhance tensile properties. Microstructure characterization shows that the significant improvement in ductility is closely related to the reduction of accumulated strain in the alloy sheets and the elimination of interface delamination formed during explosive welding.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Mami Mihara-Narita, Konosuke Asai, Hisashi Sato, Yoshimi Watanabe, Hisashi Mori, Naobumi Saito, Yasumasa Chino
Summary: The interfacial microstructure and hardness of cladding plates produced by explosive welding between magnesium alloys and A6005C aluminum alloy were studied. The bonding interface showed a wavy shape, with adiabatic shear bands and deformation twins forming on the magnesium alloy side. A thin interlayer was observed at the interface. The thickness of the interlayer increased with higher aluminum concentration in the magnesium alloy. Vickers hardness measurements showed that the aluminum alloy had higher hardness compared to the magnesium alloy, with an increase in hardness near the interface. However, nanoindentation tests did not show any increase in hardness at the interface. Residual stress measurements revealed tensile stress on the magnesium alloy side and compressive stress on the aluminum alloy side, possibly due to differences in thermal expansion coefficient between the two alloys.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Electrochemistry
Isao Nakatsugawa, Priti Wanjara, Luis Angel Villegas-Armenta, Javad Gholipour, Mihriban Pekguleryuz, Yasumasa Chino
Summary: The corrosion performance of AZ91 and AZ91 + 2%Ca magnesium alloys joined by linear friction welding was investigated. The results showed that the corrosion rate of the dissimilar AZ91/AZX912 weld was higher than that of the similar AZ91/AZ91 and AZX912/AZX912 welds. The galvanic test indicated that AZ91 and AZX912 acted as an anodic and cathodic region respectively, with a difference in the corrosion potential.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Yuya Ishiguro, Xinsheng Huang, Yuhki Tsukada, Toshiyuki Koyama, Yasumasa Chino
Summary: Bending and tension deformations were performed on alloy sheets to investigate the effects on texture formation and formability. Results showed that an increasing pass number led to the development of a quadrupole texture, which reduced anisotropy and improved stretch formability. However, excessive deformations resulted in the formation of coarse grains near the surface, deteriorating stretch formability.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Xinsheng Huang, Mingzhe Bian, Yasumasa Chino
Summary: The effects of aging precipitation on microstructure, deep drawing formability, and tensile properties of Mg-6Al-1Zn alloy sheets were investigated. It was found that aging at high temperature significantly improved the deep drawability, resulting in an increased limiting drawing ratio. This improvement can be attributed to the prevention of cracking at the edge of the drawn cup by restricting the growth of tensile twins and basal slip through aging precipitation.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Hidetoshi Somekawa, Motohiro Yuasa, Daisuke Ando, Yoshikazu Todaka
Summary: The application of large strain to Mg-9at.%Y-6at.%Zn alloy leads to the formation of high density deformation kink boundaries. Shear strain is a controllable parameter for inducing kink boundaries effectively, especially in wrought-processed alloys containing the LPSO phase.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Mingzhe Bian, Isao Nakatsugawa, Yusuke Matsuoka, Xinsheng Huang, Yuhki Tsukada, Toshiyuki Koyama, Yasumasa Chino
Summary: The room-temperature stretch formability and corrosion resistance of pure magnesium can be significantly improved by adding trace amounts of copper and calcium. The resulting alloy also exhibits excellent thermal conductivity.
Article
Nanoscience & Nanotechnology
Mingzhe Bian, Xinsheng Huang, Yasumasa Chino
Summary: Dilute magnesium-aluminum-calcium-manganese alloys have high strength after short periods of artificial aging, but low room temperature formability. We report that the addition of a small amount of copper substantially increases the Erichsen value of the Mg-0.5Al-0.5Ca-0.3Mn alloy, due to weakened sheet texture and variation in basal pole figure distribution. The 0.03 wt% Cu-containing alloy showed an Erichsen value of 7.4 mm, significantly higher than the Cu-free alloy (5.2 mm).
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Xinsheng Huang, Mingzhe Bian, Isao Nakatsugawa, Yasumasa Chino, Masahiko Sato, Kazumasa Yamazaki, Futoshi Kido, Hironori Ueda, Masashi Inoue
Summary: The influences of Al content on microstructure, mechanical properties, stretch formability, and thermal conductivity of Mg-1.5Zn-0.3Ca-xAl-0.2Mn alloys were investigated. It was found that the change in the Al content affected the texture and morphology of the alloys. The addition of Al resulted in improved stretch formability and decreased thermal conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Hidetoshi Somekawa, Motohiro Yuasa
Summary: The secondary formability and the effect of shape application on induced kink boundaries in Mg-9at.%Y-6at.%Zn alloy were investigated through experimental and numerical studies. A tube-shaped alloy without any cracks was successfully formed with kink boundaries associated with the applied shear strain. Numerical results showed a substantial shear strain at the contact region, but with an opposite shear direction after tube formation, indicating the possibility of de-kinking behavior. Additionally, the formed alloy exhibited higher hardness by 30 Hv compared to the un-processed alloy, and the correlation between kink density and hardness was consistent with literature results on wrought-processed Mg-Y-Zn alloys.
Proceedings Paper
Engineering, Mechanical
Mingzhe Bian, Xinsheng Huang, Yasumasa Chino
Summary: In this study, the room temperature stretch formability of a Mg-6Al-1Zn-2Ca alloy sheet was improved by applying a high temperature homogenization treatment. The significant improvement could be attributed to the weakened basal texture and reduced area fraction of Al2Ca second phase particles.
MAGNESIUM TECHNOLOGY 2022
(2022)
Proceedings Paper
Engineering, Mechanical
Yasumasa Chino, Kazunori Shimizu, Futoshi Kido, Takeshi Ishikawa, Makoto Taguchi, Hisashi Mori, Takao Horiya
Summary: The application of flame-retardant magnesium alloy is an effective way to improve flame retardance. Japan conducted the development and performance assessment of flame-retardant magnesium alloys for high-speed railway bodies.
MAGNESIUM TECHNOLOGY 2022
(2022)
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)
