Article
Chemistry, Physical
Jinhua Peng, Zhen Zhang, Huanhuan Chen, Chang Long, Yong Wu, Ji'an Huang, Wei Zhou, Yucheng Wu
Summary: This study systematically investigates the texture-induced anisotropy of magnesium, showing that the microstructure, texture, and mechanical properties vary with the sample direction. Different deformation mechanisms are favored by grains at different angles, with tensile and compression yield planes being fitted by linear and exponential equations, respectively. Mechanical properties and strain hardening anisotropy are discussed through comparative analyses between experimental and calculated results.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Haoge Shou, Liuyong He, Jiang Zheng, Tianjiao Li, Lihong Xia, Dongdi Yin
Summary: Grain refinement has been found to enhance the strength and ductility of Mg alloy by promoting the activation of non-basal slip. In this study, the effect of grain size on deformation modes and heterogeneity and its relationship to crystallographic orientation were investigated. The experimental results showed that decreasing grain size increased the yield strength and elongation, with a greater effect observed in the rolling direction.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Elaheh Maleki, Saman Mostafapoor, Farzad Shahri, Massoud Emamy
Summary: This study attempts to investigate the synergetic effects of changes in alloying elements and the hot extrusion process on the microstructure, texture, and mechanical properties of Mg-ZnxZr-yCa alloys. The research reveals that the texture of the alloy becomes more equiaxed after hot extrusion, and the tensile strength decreases compared to Ca/Zr=1. Atom probe tomography technique confirms that solute elements segregate into grain boundaries, facilitating the phenomenon of texture weakening in extruded alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Guoqin Wu, Zhaocan Li, Jianmin Yu, Hongbing Hu, Yali Duan, Beibei Dong, Zhimin Zhang
Summary: The texture evolution mechanism of Mg-13.1Gd-3.9Y-2Zn-0.4Zr (wt%) alloys during reciprocating upsetting extrusion and subsequent heat treatment was investigated. The influence of deformation passes on texture weakening and deformation mechanism was discussed. The results showed that the basal texture intensity decreased with increased deformation passes and significantly decreased after T6 heat treatment. The anisotropy of the alloys was maintained after T5 treatment and eliminated after T6 treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Massoud Emamy, Hamed Mirzadeh, Mohammadbaqer Ra'ayatpour, Hooman Abedi
Summary: The microstructural development and mechanical properties of newly developed Mg-5Ni-xAl (x = 2.5, 5, and 7.5 wt%) alloys were investigated. The results showed that increasing the Al content and hot extrusion treatment significantly improved the mechanical properties, resulting in grain refinement and phase dispersion, leading to the best tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Shuchang Li, Xi Zhao, Pengcheng Gao, Xingmao Mu, Zhimin Zhang, Shuailing Kan, Fafa Yan
Summary: This paper introduces a novel single-pass severe plastic deformation method called W-shaped channel extrusion (WCE) for the direct manufacturing of magnesium alloy shells. The WCE process constructs a narrow severe plastic deformation gap specially reinforced by a backpressure-shear structure and an asymmetric shear-extrusion section. The experimental results demonstrate remarkable improvements in the mechanical properties of the extruded part, including yield strength, ultimate tensile strength, and elongation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Yu-Qing Li, Da-Ye Xu, Min Zha, Dong-Feng Chen, Yun-Tao Liu, Mei-Juan Li, Kai Sun, Gui-Jie Zhu, Si-Qing Wang, Tong Wang, Jian-Bo Gao, Xiao-Long Liu
Summary: The investigation focused on the bulk texture and mechanical properties of wide Mg-Al-Zn alloy sheets with different Al contents. Results showed that with increasing Al content, the intensity of the grain texture weakened, and the recrystallized grains had a more random orientation. This change is attributed to the refined microstructure, precipitates, and weakened basal texture.
Article
Nanoscience & Nanotechnology
Takamasa Sato, Hiroyuki Takabayashi
Summary: In this study, the effects of Co content and Si/Al addition on the workability and magnetic properties of Fe-Co alloys were investigated. It was found that the presence of the ordered B2 phase affected the workability, and the co-addition of Si/Al reduced the coercivity and iron loss while maintaining a high magnetic induction.
Article
Chemistry, Physical
X. H. Li, H. Yan, R. S. Chen
Summary: The Y2O3p/ZG21 composites underwent significant changes in microstructure and mechanical properties after rolling and annealing processes. Deformed microstructure with twins and shear bands, as well as a basal texture with double peaks, were observed after rolling; while a recrystallized microstructure and circle multi-peaks texture were obtained after annealing. The anisotropic yield strength and superior ductility of the composites were attributed to the asynchronous change of texture components during annealing and different deformation mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Zilong Zhao, Baoyu Duan, Jie Ying, Liang Li
Summary: The addition of Al to Mg-8Li alloy results in significant improvement in strength of the alloy, mainly attributed to the precipitation strengthening by Al-Li phase and the orientation of alpha-Mg phase and beta-Li phase.
Article
Chemistry, Physical
Jiri Kubasek, Jan Pinc, Klara Hosova, Marketa Strakova, Orsolya Molnarova, Jan Duchon, David Necas, Miroslav Cavojskyc, Michal Knapek, Matjaz Godec, Irena Paulin, Dalibor Vojtech, Jaroslav Capek
Summary: This paper investigates the effects of extrusion temperature and ratio on the microstructure and mechanical properties of Zn-0.8Mg-0.2Sr alloy. The results show that the grain size, material texture, and dislocation substructures have a significant influence on the alloy's elongation range and anisotropy. Under appropriate extrusion conditions, the alloy's mechanical properties can be greatly improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Umer Masood Chaudry, Yeonju Noh, Gukin Han, Russlan Jaafreh, Tea-Sung Jun, Kotiba Hamad
Summary: This study investigates the effects of CaO additions on the microstructure, texture, and mechanical properties of AZ61 magnesium alloy. The addition of CaO leads to the formation of Ca-rich intermetallic compounds and influences the evolution of the alloy's structure. Additionally, the alloys containing CaO exhibit twined structures, with an increased fraction of tension twins as the amount of CaO increases.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
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
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
Nanoscience & Nanotechnology
Shubham Sisodia, S. Jananandhan, Vamsi Krishna Pakki, Chethan Konkati, Ankur Chauhan
Summary: This study investigates the effect of cerium (Ce) addition on the mechanical properties of commercially pure magnesium (Cp-Mg) and Mg-Al alloy at room temperature. The addition of 0.5 wt% Ce in pure Mg enhances its tensile yield strength and ductility, and eliminates tension-compression yield asymmetry. However, the presence of 3 wt% Al in the Mg-Al alloy suppresses the beneficial effects of Ce addition. Overall, the addition of 0.5 wt% Ce improves the cyclic strength and reduces cyclic asymmetry in both pure Mg and Mg-Al alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
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)