Article
Materials Science, Multidisciplinary
Yang Qi, Hu Zhang, Wenqi Zhang, Zhiheng Hu, Haihong Zhu
Summary: This paper presents a systematic study on the effect of heat treatment on the LPBF-fabricated Al-Cu-Li-Sc-Zr alloy. The study designed heat treatment temperatures based on phase transformation and precipitation kinetic analyses. Results show that different heat treatment temperatures have different effects on the mechanical properties of the alloy, with aging at 170 degrees C and 300 degrees C significantly increasing the yield strength, while solid solution treatment at 520 degrees C decreasing the tensile properties.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Jiaguo Tang, Youping Yi, Hailin He, Shiquan Huang, Jingjing Zhang, Fei Dong
Summary: In this study, isothermal compression tests were conducted on the 2195 Al-Cu-Li alloy to investigate its hot deformation behavior. A processing map was established to predict the workability under different conditions, and the corresponding microstructures were analyzed to reveal the deformation mechanisms. The results indicate that the optimal hot-working conditions for the alloy are at temperatures of 460-500 degrees C and strain rates of 10-3-10-2 s-1, with dominant mechanisms of dynamic recrystallization and dynamic recovery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Pan Deng, Wenfeng Mo, Zuoqiong Ouyang, Chenglu Tang, Binghui Luo, Zhenhai Bai
Summary: In order to develop high-strength and excellent corrosion resistance Al-Cu-Mg alloys for aircraft skins in aerospace, this study investigated the mechanical properties, corrosion behaviors, and microstructures of 2024 (Al-3.78Cu-1.27 Mg) and 2024SZ (Al-3.74Cu-1.17 Mg-0.1Sc-0.2Zr) alloys. The results show that the addition of (Sc, Zr) transformed the microstructure of the alloy, leading to improved mechanical properties and enhanced corrosion resistance. The present investigation provides a comprehensive understanding of the strengthening and corrosion mechanisms in Al-Cu-Mg alloy.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Hao Xue, Jiaming Li, Zhiqi Wang, Junyuan Bai, Zhihao Zhao, Gaowu Qin
Summary: In this study, a new strategy was proposed to improve the heat resistance of Al-Cu-Li alloys at 200-300 degrees C by promoting the nucleation of theta' precipitates. It was found that Sc and Si additions could enhance the thermal stability of theta' precipitates in the alloy, resulting in improved heat-resistance performance. The minor-alloyed Al-Cu-Li alloy exhibited higher tensile strength and elongation compared to commercial heat-resistant alloys.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Jingyu Jiang, Feng Jiang, Hongfeng Huang, Menghan Zhang, Zhongqin Tang, Mengmeng Tong
Summary: The deformation behavior and microstructure evolution of the alloy are significantly affected by deformation temperature and strain rate. High temperature and low strain rate are beneficial for dynamic recrystallization or dynamic recovery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Manufacturing
Priyanka Agrawal, Sanya Gupta, Saket Thapliyal, Shivakant Shukla, Ravi Sankar Haridas, Rajiv S. Mishra
Summary: In-depth analysis of the microstructure of an AM alloy revealed promising properties for structural applications, with improved strength and ductility due to the presence of precipitates. The study utilized advanced microscopy techniques to study the microstructure and understand the mechanisms behind the enhanced tensile properties.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
Aditya Sarkar, S. V. S. Narayana Murty, M. J. N. V. Prasad
Summary: Uniaxial and plane strain compression tests were conducted on Cu-Cr-Zr-Ti alloy specimens to examine the influence of deformation mode on stress-strain response, work hardening behavior, and microstructural evolution. The results showed that the alloy exhibited a transition from recovery stage to steady state under uniaxial compression, while a smooth transition was observed under plane strain compression. Additionally, the microstructures evolved differently under the two compression modes.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Jiwu Huang, Chenglong Xu, Shichao Liu, Fuqing Jiang
Summary: This paper investigates a novel Al-Zn-Mg-Cu-Mn-Sc-Zr alloy with excellent quenching sensitivity and a quench-hardening depth of more than 150 mm. Different quenching rates affect the hardness of the alloy, and after artificial aging, various precipitates are observed on the grain boundaries and different phase interfaces.
Article
Nanoscience & Nanotechnology
Gaurav Singh, N. Nayan, S. V. S. Narayana Murty, Manasij Yadava, Govind Bajargan, M. Mohan
Summary: The hot workability of third generation AA2195 alloy with different Sc and Nb additions was investigated using processing maps approach. The results showed that 0.15wt% additions of Sc and Nb (separately or in combination) were optimum to improve the workability of the alloy. However, increasing Sc and Nb contents to 0.25wt% relatively expanded flow instability regions. The processing maps and microstructural analysis revealed safe regimes for hot working of AA2195 with optimum Sc and Nb contents.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jian Ning, Qun Li, Zongyuan Zou, Tianwei Liu, Lei Chen
Summary: Research on the hot tensile deformation behavior of 2195 Al-Li alloy in the temperature range of 440-500 degrees C revealed that the degree of dynamic recrystallization increases with the strain, and the pinning effect of precipitations is more sensitive to temperature. When the temperature reaches 500 degrees C, the weakening of the pinning effect of precipitations makes it easier to activate more dynamic recrystallization.
Article
Materials Science, Multidisciplinary
Chunxin Wang, Chenchi Qu, Jianshe Chen, Binchuan Li, Kuiren Liu, Shicheng Wei, Xiaocai He, Qing Han
Summary: This paper presents the synthesis and characterization of Al-0.35Cu-0.18Sc-0.06Zr alloys with remarkable electrical and mechanical properties. The alloy exhibits high electrical conductivity of 60.4%IACS and strong tensile strength of 169.46 MPa. Microscopic analysis shows the presence of fine bean-petal shaped Al-3(Sc, Zr) particles as the second phase, which are highly cohered with the matrix and contribute to improved toughness. The heat resistance test results also demonstrate the alloy's stability at elevated temperatures.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Guojing Yang, Wenchen Xu, Xueze Jin, Zhiyuan Wang, Debin Shan, Bin Guo
Summary: This study investigates the influence of hot deformation parameters on the microstructure evolution and deformation behavior of the extruded 2195 Al-Li alloy. The optimized hot deformation conditions lead to continuous dynamic recrystallization and microstructure refinement. The presence of large second phases and liquid-like grain boundaries in the extruded plate results in a lower deformation activation energy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Yao Li, Guofu Xu, Shichao Liu, Baofeng Wang, Xiaoyan Peng
Summary: In this study, the anisotropy of the Al-Zn-Mg-Sc-Zr alloy sheet in the peak-aged state was analyzed, showing that grain orientation and Schmid factor significantly affect the alloy properties. Samples at 0 degrees and 90 degrees have higher strength but lower elongation due to wider distribution of Schmid factors, while samples at 45 degrees and 60 degrees have lower strength but higher elongation due to narrower distribution of Schmid factors.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Meilin Wang, Wu Wei, Wei Shi, Xiaorong Zhou, Shengping Wen, Xiaolan Wu, Kunyuan Gao, Li Rong, Peng Qi, Hui Huang, Zuoren Nie
Summary: Isothermal hot compression experiments were conducted to investigate the hot deformation behavior and optimum processing parameters of Al-Mg-Si-Er-Zr alloy. The results showed that dynamic recovery and continuous dynamic recrystallization were the main softening mechanisms. The addition of Er and Zr increased the activation energy due to the formation of Al3(Er, Zr) particles.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Mengmeng Tong, Feng Jiang, Huiling Wang, Jingyu Jiang, Pengcheng Ye, Xuda Xu
Summary: In this study, dynamic stretching behaviors of Al-Mg-Mn-Sc-Zr alloy at various strain rates were investigated, revealing that with increasing strain rates, the alloy exhibited significant increases in peak stress and elongation, as well as improved work hardening ability. The increase in dislocation density and decrease in dislocation width enhanced resistance to dislocation movement, leading to a notable increase in peak strength. High velocity dislocations could cut through Al-3(Sc,Zr) particles, inhibiting dislocation tangle formation and promoting uniformity in dislocation distribution, ultimately improving the plasticity of the alloy during dynamic deformation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Dan Xiao, Xiaoyan Peng, Xiaopeng Liang, Ying Deng, Guofu Xu, Zhimin Yin
Article
Chemistry, Physical
Bo Li, Qinglin Pan, Congping Chen, Haihua Wu, Zhimin Yin
JOURNAL OF ALLOYS AND COMPOUNDS
(2016)
Article
Chemistry, Physical
Yulu Duan, Lei Tang, Guofu Xu, Ying Deng, Zhimin Yin
JOURNAL OF ALLOYS AND COMPOUNDS
(2016)
Article
Materials Science, Multidisciplinary
Guofu Xu, Jian Qian, Dan Xiao, Ying Deng, Liying Lu, Zhimin Yin
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2016)
Article
Materials Science, Multidisciplinary
Xiaoyan Peng, Xiaowu Cao, Guofu Xu, Ying Deng, Lei Tang, Zhimin Yin
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2016)
Article
Nanoscience & Nanotechnology
Y. L. Duan, L. Tang, Y. Deng, X. W. Cao, G. F. Xu, Z. M. Yin
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2016)
Article
Materials Science, Multidisciplinary
Lei Tang, Guofu Xu, Ying Deng, Hao Gan, Aibin Ma, Zhimin Yin
Article
Chemistry, Physical
Yulu Duan, Guofu Xu, Lei Tang, Yun Liu, Jiawei Xu, Ying Deng, Zhimin Yin
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Chemistry, Physical
Ying Deng, Zhimin Yin, Qinlin Pan, Guofu Xu, Yulu Duan, Yingjun Wang
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Nanoscience & Nanotechnology
Xiaoyan Peng, Qi Guo, Xiaopeng Liang, Ying Deng, Yi Gu, Guofu Xu, Zhimin Yin
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2017)
Article
Materials Science, Multidisciplinary
Dan Xiao, Xiaoyan Peng, Xiaopeng Liang, Ying Deng, Guofu Xu, Zhimin Yin
METALS AND MATERIALS INTERNATIONAL
(2017)
Article
Chemistry, Physical
Xiaoyan Peng, Yao Li, Xiaopeng Liang, Qi Guo, Guofu Xu, Yongyi Peng, Zhimin Yin
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
Xiaoyan Peng, Yao Li, Guofu Xu, Jiwu Huang, Zhimin Yin
METALS AND MATERIALS INTERNATIONAL
(2018)
Article
Materials Science, Multidisciplinary
Fuqing Jiang, Jiwu Huang, Lei Tang, Fenxiang Wang, Quanfeng Xiao, Zhimin Yin
Article
Materials Science, Multidisciplinary
Jian Haigen, Tang Xianmin, Ou Ling, Wang Ying, Yin Zhimin
RARE METAL MATERIALS AND ENGINEERING
(2016)
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)