Article
Chemistry, Physical
Yajie Ma, Chuming Liu, Yingjie Huang, Shunong Jiang, Yonghao Gao, Yingchun Wan, Zhiyong Chen
Summary: In this study, the effects of extrusion parameters on the microstructure, mechanical properties, and damping capacities of a Mg-Y-Zn-Zr alloy were investigated. The results demonstrate that the alloy exhibits good comprehensive properties under specific extrusion conditions, and the relationship between damping capacity and temperature was observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jiahao Wang, Yang Jin, Ruizhi Wu, Dan Wang, Bingyu Qian, Jinghuai Zhang, Legan Hou
Summary: This study prepared a Mg-8Li-6Y-2Zn alloy with high damping capacity and adequate strength through heat treatment and hot rolling. By optimizing the microstructure of the alloy, the mechanical properties and damping capacity of the alloy were improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Dan Wang, Xiaochun Ma, Ruizhi Wu, Huajie Wu, Jiahao Wang, Shun Zhang, Jinghuai Zhang, Legan Hou
Summary: The combination of extrusion and rolling processes can form twin and LPSO structures in magnesium alloys, which is beneficial for enhancing the damping and mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Dan Wang, Shujuan Liu, Ruizhi Wu, Shun Zhang, Yang Wang, Huajie Wu, Jinghuai Zhang, Legan Hou
Summary: The Mg-8Li-4Y-2Er-2Zn-0.6Zr alloy exhibits high damping capacity, tensile strength and elastic modulus after heat treatment and cold rolling processes. The introduction of LPSO phase and formation of twins during cold rolling contribute to the improvement in damping capacity and tensile strength. The high elastic modulus of the cold-rolled alloy can be attributed to the effects of LPSO phase and cold rolling.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yuanke Fu, Liping Wang, Sicong Zhao, Yicheng Feng, Lei Wang
Summary: This study investigated the effects of Al content on the microstructure evolution and mechanical properties of as-cast Mg-11Gd-2Y-1Zn alloy. The results showed changes in microstructure and mechanical properties with increasing Al content, with specific improvements seen at 1wt.% and 3wt.% Al additions.
Article
Chemistry, Physical
Yaohong Liu, Hongxiang Li, Zhaorui Zhang, Yue Li, Linyue Jia, Jian Wang, Jinhui Wang, Jishan Zhang
Summary: The effect of Cu micro-alloying on the microstructure, mechanical and corrosion properties of Mg-9.5Gd-2.7Y-0.9Zn alloys was investigated. The increase of Cu contents promoted the nucleation of dynamic recrystallized grains but suppressed their growth. The addition of 0.8 wt% Cu resulted in higher yield strength due to multiple strengthening contributions. The LPSO phase acted as a cathodic to accelerate corrosion, and the 0.8Cu alloy exhibited the highest corrosion rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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
Guangli Bi, Hongsheng Man, Jing Jiang, Yuandong Li, Tijun Chen, Xiaoru Zhang, Daqing Fang, Xiangdong Ding
Summary: The effects of Zn addition on the microstructure and mechanical properties of Mg-Y-Co-W alloy were investigated. The replacement of Co with Zn improved the strength and ductility of the alloy, resulting in refined grains and precipitation strengthening from different phases.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Xiaojie Zhou, Wenying Xiong, Gang Zeng, Hongchao Xiao, Jian Zhang, Xianzheng Lu, Xiaomin Chen
Summary: The combined effects of LPSO orientation and alpha-Mg texture on tensile anisotropy were investigated, with the extrusion direction showing optimal mechanical properties, the 45 degrees direction exhibiting high elongation, and the transverse direction having inferior strength and elongation simultaneously. LPSO orientation contributes to strength anisotropy through different load-bearing strengthening effects along different tensile axes, while alpha-Mg texture contributes to strength anisotropy through stronger grain boundary strengthening effects. However, LPSO orientation, rather than alpha-Mg texture, accounts for ductility anisotropy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Ruopeng Lu, Kai Jiao, Yuhong Zhao, Kun Li, Keyu Yao, Hua Hou
Summary: This study focuses on Mg-Zn-Y based alloys with lamellar long period stacking ordered (LPSO) phases, where the density of the lamellar LPSO phase significantly affects the damping capacity of the magnesium alloy. Sparse lamellar phases can improve the damping capacity without significantly reducing the mechanical properties.
Article
Materials Science, Multidisciplinary
Mingming Liu, Quanan Li, Xiaoya Chen, Xiangyu Li, Peijun Chen, Jinfeng Tan
Summary: In this paper, the microstructure evolution, corrosion and mechanical properties of Mg-10Y-1.5Zn-0.5Zr alloy under different heat treatment conditions were systematically studied. The results demonstrated that the microstructure of the alloy changed with different heat treatments, and the as-cast alloy showed the best corrosion resistance performance, while the aged alloy exhibited optimal mechanical properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Metallurgy & Metallurgical Engineering
Jing Jiang, Si-qi Chen, Jia-rui Gu, Guang-li Bi, Jian-kang Huang, Yuan-dong Li, Ti-jun Chen, Ying Ma
Summary: The microstructure and corrosion properties of micro-beam plasma remelted (MPRM) Mg-12Dy-1.1Ni (wt%) alloy were investigated. The results showed that after MPR, the grain size of the as-cast alloy was refined to 11μm, and the amounts of 18R-LPSO phase increased from 18.3% to 26.0% and distributed as continuous network. The MPRMed alloy exhibited improved corrosion resistance due to its uniform microstructure, denser corrosion products, and continuous distribution of 18R-LPSO phase, as evidenced by electrochemical and immersion tests.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Materials Science, Multidisciplinary
Shiyu Zhong, Dingfei Zhang, Yongqin Wang, Sensen Chai, Jingkai Feng, Yulun Luo, Jianrong Hua, Qimin Dai, Guangshan Hu, Junyao Xu, Bin Jiang, Fusheng Pan
Summary: The effects of minor Cu and Ni additions on microstructures and properties of the Mg2Gd alloy were compared. The results showed that adding Ni was more effective than adding Cu in refining grain sizes, strengthening the basal fiber texture, and promoting the formation of LPSO phases, resulting in higher strength.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
L. Zhang, S. J. Zhang, P. Xu, H. Huang
Summary: Substituting Cu with Ni can refine the grains of the as-cast alloy and improve its mechanical properties. The Mg97Er2Cu0.25Ni0.75 alloy with Ni substitution showed the highest ultimate tensile strength, yield tensile strength, and elongation.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Cong Dang, Xiaoxu Dou, Jingfeng Wang, Di Yu, Jinxing Wang, Ruopeng Lu, Hua Hou, Yuhong Zhao
Summary: Different solution treatments at different temperatures were conducted on the Mg-9.55Gd-2.27Y-1.28Zn-0.55Zr-0.11Nd alloy, resulting in different phase constitutions. The Mg3RE-type eutectic phases transformed into long period stacking order (LPSO) phases with various morphologies after solution treatment. Increasing the solution temperature led to larger grain size, more lamellar LPSO phases, and segregation of Zr element. The special spatial structure consisting of prismatic b' precipitates, basal g' precipitates, and lamellar LPSO phases hindered dislocation movement effectively, leading to high strength, but also caused premature cracking and decreased ductility.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)