Article
Engineering, Manufacturing
Jacob John, S. P. Shanmuganatan, M. B. Kiran, V. S. Senthil Kumar, R. Krishnamurthy
Summary: This study utilized aluminum 2014-T6 alloy for friction stir processing and evaluated its formability through single-pass and multi-pass processes. The results show that multi-pass processed samples exhibited the best formability, followed by single-pass processed samples, and the unprocessed samples showed the lowest formability.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Chemistry, Physical
Yanye Jin, Haiping Yu
Summary: This study investigated the deformation behavior, strengthening effect, and microstructure changes of AA2195 aluminum alloy sheets treated by artificial aging and subjected to electromagnetic forming. The results showed that hardness of the conical workpiece increased with increased strain during electromagnetic bulging, along with more uniform grain distribution, higher dislocation density, and low-angle grain boundaries. The study demonstrated the feasibility of forming ultra-high-strength aluminum alloys at room temperature using electromagnetic forming technology.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Biaobiao Yang, Jun Wang, Yunping Li, Matthew Barnett, Javier LLorca
Summary: The transformation from compression twins (CT) to double twins (DT) was studied in a dual-textured Mg-6.5%Zn(wt.) alloy during deformation along the extrusion axis. After 7.3% compression, 85% of CT transformed to DT. However, during tension, the transformation ratio dropped to 22% and 36% despite higher applied stresses and strains. The differences in DT activity could not be explained by the Schmid factor, indicating that the activation of non-basal slip plays a role in suppressing the CT to DT transformation.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Chunzhi Zhang, Ning Wang, Kuanliang Lu, Wensheng Li, Meilin Shan, Hongjie Fang, Shufeng Zhao
Summary: This study investigates the solution aging treatment on dissimilar aluminum alloy joint, specifically the 7005-T6 and 6063-T6 alloys. The results reveal that the treatment refines the joint grain, dissolves the coarse non-equilibrium phase, and promotes the precipitation of Mg-Zn and Mg-Si. The main precipitations transform from a small amount of β' to the co-existence of η' and β', thereby enhancing the tensile strength of the joint. This research provides valuable guidance for dissimilar aluminum alloy welding.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
R. Rajeshkumar, V. L. Niranjani, K. Devakumaran, Kumkum Banerjee
Summary: The study investigates the evolution of the non-dendritic equiaxed zone (EQZ) and its effect on the tensile properties of tungsten inert gas (TIG) welded joints of dissimilar A6061-T6 and A6082-T6 materials. The presence or absence of EQZ significantly influences the strength of the welded joints, with A6082-T6 interface showing higher strength compared to A6061-T6 interface due to the absence of EQZ.
Article
Nanoscience & Nanotechnology
Peng Li, Yiqi Tong, Xingxing Wang, Yutaka S. Sato, Honggang Dong
Summary: A novel 6061-T6 aluminum matrix composites reinforced by AlCoCrFeNi2.1 high-entropy alloy were prepared via friction stir processing and strengthened by T6 heat treatment. The content of reinforcement had significant effects on the microstructure and mechanical properties of the composites. The results demonstrated that AlCoCrFeNi2.1 HEA was a suitable reinforcement material, and its presence effectively inhibited the formation and growth of intermetallic compounds.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
Yashwant Koli, N. Yuvaraj, S. Aravindan, Vipin
Summary: This study focused on butt joining different thicknesses of dissimilar aluminum alloys using the CMT process. Mechanical properties and microstructural characterization were studied, showing significant improvements in tensile strength and compressive residual stresses when reinforcement was removed. CMT exhibited better residual stress results compared to MIG welding at the same heat input range.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2021)
Article
Engineering, Civil
Lu Sun, Zhiqiang Zhang, Zhenkun Song, Mingwen Ren, Hongjie Jia
Summary: 7075 aluminum alloy is being used as an ideal material for vehicle body parts due to the demand for energy-saving and lighter vehicles. The contact heating warm forming (CHWF) technology was proposed to solve the problem of strength decrease in 7075-T6 aluminum alloy after warm forming. Contact heating can quickly and efficiently heat the blank to the desired temperature.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Maziar Toursangsaraki, Quan Li, Yongxiang Hu, Huamiao Wang, Duo Zhao, Yaobang Zhao
Summary: This study predicts the strengthening contributions of local microstructural evolutions during friction stir welding of AA2195-T6 joints by incorporating various microstructure attributes into a physics-based constitutive model. Through observation, measurement, and simulation of these microstructure effects, a match is achieved between simulated and experimentally observed tensile properties of the joints at both the local and global scales.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yeqiang Bu, Yuan Wu, Zhifeng Lei, Xiaoyuan Yuan, Honghui Wu, Xiaobin Feng, Jiabin Liu, Jun Ding, Yang Lu, Hongtao Wang, Zhaoping Lu, Wei Yang
Summary: This study captured the dynamic interaction between LCFs and dislocations in ductile BCC HfNbTiZr HEAs, demonstrating how LCFs influence strength and ductility by promoting dislocation interaction. The observed double cross-slips caused by LCFs homogenously distribute dislocations onto various atomic planes, contributing to ductilization in HfNbTiZr. These findings offer insights into the deformation mechanisms of HEAs and suggest new strategies for designing ductile BCC HEAs.
Article
Nanoscience & Nanotechnology
Hanieh Azimi, Salman Nourouzi, Roohollah Jamaati
Summary: The study investigated the effects of Ti powder addition and T6 heat treatment on the microstructure and mechanical properties of A356-based composites. It was found that the addition of Ti led to changes in silicon nucleation, size, and porosity, with the T6 heat treatment transforming the eutectic Si structure. The composite with 0.5 wt% Ti showed the highest ultimate tensile strength among all samples, with improvements in hardness and tensile strength compared to the A356 alloy attributed to the presence of Ti and Al3Ti phases. The fracture surface of the A356/Ti composites was mainly covered by cleavage features.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
T. Chen, Y. G. Yao, W. S. Cai, L. M. Kang, H. B. Ke, H. M. Wen, W. H. Wang, C. Yang
Summary: A multimodal shell-layer-core microstructure was achieved in Ti-based composites through semi-solid sintering, resulting in high compressive yield strength, ultimate strength, and large compressive strain. This work provides fundamental insight into developing and fabricating strong-yet-ductile Ti-based composite materials for demanding structural applications.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Chemistry, Physical
Tuo Ye, Erli Xia, Sawei Qiu, Yong Wang, Huanyu Yue, Jie Liu, Yuanzhi Wu
Summary: The tensile properties and anisotropy of rolled 6082-T6 aluminum alloy were investigated at high temperature. The microstructure evolution was analyzed using various microscopy techniques. The results showed that the tensile strength decreased with increasing temperature, while the plasticity improved. The alloy exhibited anisotropic mechanical properties at 200 degrees C, which weakened with increasing temperature and disappeared at 400 degrees C.
Article
Engineering, Mechanical
Joseph Indeck, Gabriel Demeneghi, Jason Mayeur, Cyril Williams, Kavan Hazeli
Summary: The study focuses on the impact of reversible and non-reversible macroscopic elastic fatigue on the microstructure and subsequent mechanical properties of 7075-T6 aluminum alloy. Results show how different stress ratios and degrees of dislocation reversibility during high cycle fatigue loading influence the microstructure and post-fatigue global behavior of the alloy.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Physical
Seyed Alireza Etesami, Behzad Fotovvati, Ebrahim Asadi
Summary: The study investigates the correlations between heat treatment process parameters and the microstructure and tensile properties of Ti-6Al-4V samples manufactured by laser-based powder-bed fusion additive manufacturing process. Different heat treatment conditions significantly influence the microstructure and mechanical properties of the samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.