Article
Materials Science, Multidisciplinary
Chengzhi Zhang, Yang Xiao, Kaijie Ma, Yuhan Wang, Zhipeng Liu, Zhenjie Liu, Wenjing Zhang
Summary: A hot rolled Al-5Mg-2Li-0.2Sc-0.12Zr alloy sheet exhibits excellent superplasticity, with the optimal forming temperature at 500 degrees C and achieving a maximum elongation of 1180% at 500 degrees C and 1 x 10(-3) s(-1). The superplastic deformation process can be divided into two stages, involving dynamic globularization and superplastic flow with spheroidized equiaxed grains and high-angle grain boundaries.
Article
Materials Science, Multidisciplinary
Y. B. Sun, X. P. Chen, J. Xie, C. Wang, Y. F. An, Q. Liu
Summary: In this study, the superplasticity of Al-3Mg-0.1Sc-0.1Zr alloy obtained by FSP was investigated. The alloy exhibited good superplasticity in the temperature range of 400°C-500°C and strain rate range of 3 x 10-3 s-1 - 3 x 10-1 s-1. The FSPed alloy showed significant secondary strain hardening ability and the Al3(Sc, Zr) particles hindered grain coarsening, contributing to the excellent superplastic properties.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Qing Zhang, Xiaofei Ju, Jun Liu, Lei Wang, Yang Li, Haowei Wang, Zhe Chen
Summary: The addition of TiB2 nanoparticles as reinforcement in Al-Zn-Mg-Cu composite leads to the formation of fine-equiaxed grains, which enhances both the elongation and thermal stability of the material. The deformation at grain boundaries is controlled by grain boundary sliding mechanism, and the stress release and prevention of cavitation are facilitated by locally melted Mg-rich phases.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Hong-Min Zhang, Peng Jiang, Hai-Jun Pan, Jian Peng, Zhi-Zhi Wang, Ke-Tao Yan, Min Zha
Summary: This research reveals the high-temperature tensile properties and deformation mechanisms in simply extruded Al-7Mg alloys tailored by Sc/Zr ratios, specifically focusing on discontinuous dynamic recrystallization (DDRX). The bimodal-grained Al-7Mg-0.4Sc alloy exhibits superplastic behavior with a high elongation to failure of approximately 540% at 400°C and 5 x 10(-4) s(-1). However, this behavior is not observed in the coarse-grained Al-7Mg-0.1Sc-0.3Zr and Al-7Mg-0.3Sc0.1Zr alloys. The superplasticity in Al-7Mg-0.4Sc is achieved through a combination of grain boundary sliding (GBS) and dislocation slip as dominant mechanisms, accompanied by DDRX in the initial tensile deformation stage and dislocation slip-accommodated GBS in the late stage.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Anastasia V. Mikhaylovskaya, Olga A. Yakovtseva, Andrey G. Mochugovskiy, Joan Cifre, Igor S. Golovin
Summary: The influence of a minor addition of Zn on the superplastic properties of Al-Mg alloys was investigated. It was found that the addition of a small amount of Zn can promote grain boundary sliding, resulting in increased strain rate sensitivity and elongation-to-failure of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Hongfeng Huang, Mai Jiang, Lili Wei, Chongyu Liu, Shuai Liu
Summary: The study showed that the Al-5.5 Mg-0.3Mn-0.28c-0.1Zr alloy experienced inhibited dynamic recrystallization due to the pinning effect of AlxMn and Al-3(Sc, Zr) precipitates, resulting in a significant improvement in mechanical properties at low equivalent strain. At high equivalent strain, dislocation recombination led to the formation of grain boundaries, resulting in a noticeable structure refinement.
MATERIALS CHARACTERIZATION
(2021)
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
Nanoscience & Nanotechnology
Zeinab Savaedi, Hamed Mirzadeh, Rouhollah Mehdinavaz Aghdam, Reza Mahmudi
Summary: Shear punch testing was used to evaluate the superplasticity of a hot rolled fine-grained Mg-3Zn-0.5RE-0.5Zr (ZEK300) alloy. The alloy exhibited regions I, II, and III of deformation behavior typical of superplastic materials, with a grain size of 4.5 μm. In region II, the strain rate sensitivity indices of the ZEK300 alloy were determined to be 0.51, 0.48, and 0.41 at temperatures of 350, 400, and 450 degrees C, respectively. The average activation energy of 87.6 kJ mol-1 suggests that grain boundary sliding (GBS) facilitated by grain boundary diffusion is the dominant deformation mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Guoling Mao, Guangze Tong, Wenli Gao, Shanguang Liu, Liwei Zhong
Summary: When Ti-B is added to the alloy and Sc or Zr are present simultaneously, the grain refinement effect cannot be reflected and poisoning occurs. Alloy 3 has smaller grain size and higher nucleation temperature, with the presence of Sc or Zr affecting the content of Ti as nucleation cores, resulting in poisoning in the nucleation stage of grains.
Article
Nanoscience & Nanotechnology
Guotong Zou, Lingying Ye, Jun Li, Zhixin Shen
Summary: The microstructure evolution and superplastic deformation mechanisms of a 2A97 Al-Cu-Li alloy with initial banded grains were studied. Uniaxial superplastic tensile tests were conducted and surface studies were carried out to investigate the deformation mechanisms. The results showed that the banded grains transformed into equiaxed grains during deformation, and the deformation process could be divided into two stages, with intragranular dislocation slip dominating in the primary stage and grain boundary sliding dominating in the secondary stage.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
I Vysotskiy, K. Kim, S. Malopheyev, S. Mironov, R. Kaibyshev
Summary: This study aimed to improve the superplastic ductility of friction-stir welded joints of ultrafine-grained (UFG) Al-Mg-Sc-Zr alloy. The UFG material was produced at elevated temperature to suppress abnormal grain growth, but the new approach resulted in a high fraction of low-angle boundaries, hindering grain-boundary sliding. Thus, superplastic deformation was primarily concentrated in the fully-recrystallized stir zone.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Chemistry, Physical
M. Esmaeili Ghayoumabadi, A. G. Mochugovskiy, N. Yu Tabachkova, A. Mikhaylovskaya
Summary: This study aimed to improve the superplastic formability of Alloy AA6013 by refining its grain structure and controlling grain growth at elevated temperatures. Minor additions of Y, Sc, and Zr were considered. The results showed that the additions led to a noticeable refinement of the grain structure and the formation of dispersed particles. These effects inhibited recrystallization and dynamic grain growth, resulting in grain refinement and achieving superplasticity in the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Liangyu Li, Jiawei Tang, Zhengqin Liu, Yiren Wang, Yong Jiang, Gang Sha
Summary: The micro-alloying effects of Ni on the microstructure evolution and mechanical properties of an Al-Zn-Mg-Cu-Sc-Zr alloy were thoroughly investigated using electron/atom microscopic characterization and first-principles calculations. A trace addition of 0.2 wt% Ni can induce a new primary phase of Al3(Ni, Cu) and refine the grain size to 23 μm. It was found that Ni promotes the precipitation of the eta phase, improves its thermal stability, and enhances the GB binding by segregating to Al GBs. The Ni micro-alloyed Al-Zn-Mg-Cu-Sc-Zr alloys exhibit high strength and thermal stability with acceptable plasticity, even with a low Cu/Mg atomic ratio (approximately 0.22), compared to most 7055 Al alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Andrey Mochugovskiy, Anton Kotov, Majid Esmaeili Ghayoumabadi, Olga Yakovtseva, Anastasia Mikhaylovskaya
Summary: The addition of Ni in the Al-Mg-Si-Cu-based alloy was found to enhance superplasticity, improve grain morphology and distribution, and enhance elongation-to-failure under high temperature and large strain rate.
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
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
Nanoscience & Nanotechnology
Guofu Xu, Xiaowu Cao, Tao Zhang, Yulu Duan, Xiaoyan Peng, Ying Deng, Zhimin Yin
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2016)
Article
Materials Science, Characterization & Testing
Y. Deng, Z. M. Yin, G. F. Xu, Y. J. Wang, L. Y. Lu, J. Q. Duan
STRENGTH OF MATERIALS
(2016)
Article
Metallurgy & Metallurgical Engineering
Bo Li, Qing-lin Pan, Cong-ping Chen, Zhi-min Yin
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(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)