Article
Metallurgy & Metallurgical Engineering
Kai Guan, Rui Ma, Jinghuai Zhang, Ruizhi Wu, Qiang Yang, Jian Meng
Summary: The microstructure and tensile properties of a Mg-Sm-Zn-Zr alloy with various extrusion ratios were systematically investigated. It was found that a greater extrusion ratio led to increased dynamic recrystallization and weakened basal fiber texture, resulting in decreased strength but improved ductility. Additionally, TEM observations revealed the transformation of the dominant intermetallic phase during extrusion with high extrusion ratio.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Shuai Yuan, Jinhui Wang, Peipeng Jin, Lei Zhang
Summary: The study found that as the temperature increased or the strain rate decreased, the peak stress during hot tensile deformation of the alloy decreased and elongation increased. Hot tensile increased texture intensity and the microstructure exhibited characteristic features of basal fiber texture.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Chemistry, Physical
Hao Ji, Guohua Wu, Wencai Liu, Jiangwei Sun, Wenjiang Ding
Summary: The extrusion temperature plays a significant role in refining the microstructure and affecting the tensile properties of ultralight Mg10Li-5Zn-0.5Er alloy. The increase in extrusion temperature leads to changes in grain size and distribution, as well as variations in strength and elongation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Elaheh Maleki, Farzad Shahri, Masoud Emamy
Summary: The study found that adding 0.1 wt% Ca significantly enhanced the ultimate tensile strength and elongation of the as-cast alloy. The size of DRXed grains decreased with the increase of Ca, and the best result was obtained for the Mg-5Zn-0.1Ca sample, with an ultimate tensile strength of 351 MPa and an elongation percentage of 24% for the extruded alloy.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Qianlong Ren, Shuai Yuan, Jinhui Wang, Deqing Ma, Wei Li, Lei Wang
Summary: This study examines the effect of the long-period stacking order (LPSO) phase on the overall mechanical properties of the as-cast Mg-1Al-12Y alloy. The microstructure and tensile mechanical properties of the as-cast and solution-treated alloy were analyzed. The results show that the solution treatment improves the comprehensive mechanical properties by dissolving the beta-Mg24Y5 phase and precipitating the LPSO phase.
Article
Materials Science, Multidisciplinary
Yuanxiao Dai, MengHan Xiao, Yaobo Hu, Yan Yang, Bin Jiang, Tianxu Zheng, Li Dong, Baoqing Yang, Changyong Zheng
Summary: By designing extrusion parameters, the Mg-0.12Ca-0.08Ba alloy underwent grain refinement and texture control, resulting in the best performance of the extruded samples with different crystallographic orientations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Metallurgy & Metallurgical Engineering
Sang-Cheol Jin, Jae Won Cha, Jeong Hun Lee, Taekyung Lee, Sang -Ho Han, Sung Hyuk Park
Summary: This study investigates the microstructure and mechanical properties of extruded Mg-5Bi-xSn (BT5x, x = 0, 2, 4, and 6 wt%) alloys and finds that the addition of Sn significantly improves the tensile strength of the alloy. The refined grains and increased precipitates contribute to the enhanced mechanical properties.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Fuan Wei, Shihao Zhou, Jinhui Wang, Bo Shi, Peipeng Jin, Yong Ding, Xing Guo
Summary: This study investigated the microstructure, mechanical properties, and corrosion resistance of the Mg-6Sn-3Al-1Zn alloy under different extrusion temperatures. The results showed that increasing the extrusion temperature led to a decrease in the volume fraction of the Mg2Sn phase, an increase in the average grain size, and a change in the filamentous fiber microstructure. The alloy exhibited decreased yield strength and corrosion resistance but increased elongation. After extrusion at 400 degrees Celsius, the alloy showed a uniform distribution of the Mg2Sn phase and grains of the alpha-Mg matrix, resulting in optimal mechanical properties. The alloy exhibited a corrosion mechanism involving electrochemical corrosion, chemical corrosion, and local corrosion. The lowest hydrogen evolution rate was observed in the alloy extruded at 300 degrees Celsius in a 3.5 wt% NaCl solution, indicating that grain refinement improved the corrosion resistance of the alloy.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Hao Lv, Lu Li, Zhuozhang Wen, Chunrong Liu, Wei Zhou, Xue Bai, Huiling Zhong
Summary: This study investigates the effects of extrusion ratios and temperatures on the microstructure and mechanical properties of magnesium alloys. The results show that different extrusion parameters affect the grain structure and mechanical performance of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yi-hao Luo, Wei-li Cheng, Hang Li, Hui Yu, Hong-xia Wang, Xiao-feng Niu, Li-fei Wang, Zhi-yong You, Hua Hou
Summary: A novel extruded Mg-5Bi-5Sn-1Mn alloy with bimodal microstructure is developed, showing high yield strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Franc Zupanic, Matej Steinacher, Sandi Zist, Tonica Boncina
Summary: The study investigated a novel Al-Mg-Si alloy with higher Si content, copper and zirconium, to improve strength while maintaining ductility. After T6 temper, the alloy showed significantly increased tensile strength and retained high elongation at fracture.
Article
Chemistry, Inorganic & Nuclear
Yan Zhang, Yuyan Liu, Yunting Guo, Long Yuan, Jiang Li, Weimin Huang
Summary: The Mg-6.0Zn-1.0Nd-0.5Zr (ZNdK610) alloy exhibits superior tensile properties and anti-biodegradability compared to the ZK60 alloy, attributed to refined grains and the formation of new intermetallic phases in the microstructure. The tensile strengths of ZNdK610 reach 388 MPa (ultimate tensile strength, UTS) and 356 MPa (yield strength, YS), showing significantly improved anti-biodegradability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Metallurgy & Metallurgical Engineering
Sang-Cheol Jin, Jae Won Cha, Jun Ho Bae, Hui Yu, Sung Hyuk Park
Summary: The effects of Al addition to a Mg-Bi binary alloy on its microstructural characteristics and tensile properties after extrusion were investigated. The addition of Al negligibly affected the second-phase particles of the extruded alloy, but caused significant decreases in the average grain size and maximum texture intensity. The Al addition improved the strength and ductility of the extruded alloy, with a substantial increase in tensile elongation.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Metallurgy & Metallurgical Engineering
Sang-Cheol Jin, Jae Won Cha, Jun Ho Bae, Hui Yu, Sung Hyuk Park
Summary: The study investigates the effects of Al addition to a Mg-Bi binary alloy on its microstructural characteristics and tensile properties after extrusion. It was found that Al addition can significantly improve the strength and ductility of the alloy, mainly due to the grain refinement and Al solute atoms induced grain-boundary hardening and solid-solution hardening effects.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Abdul Malik, Yangwei Wang, Cheng Huanwu, Tahir Mehmood Bhatti, Faisal Nazeer
Summary: The study investigated the superplasticity of fine-grained extruded ZK61 magnesium alloy at elevated temperatures, showing high elongation to fracture and a governing deformation mechanism of intra-granular slip.
RESULTS IN PHYSICS
(2021)
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)