Article
Metallurgy & Metallurgical Engineering
V. E. Bazhenov, A. Koltygin, M. C. Sung, S. H. Park, Yu Tselovalnik, A. A. Stepashkin, A. A. Rizhsky, M. Belov, V. D. Belov, K. Malyutin
Summary: Magnesium alloys are commonly used in aircraft for their lightweight properties. In this study, high-potential Mg-Zn-Y-Zr alloys were selected and tested for their performance, with the Mg-4 wt% Zn-3 wt% Y-0.3 wt% Zr alloy showing high thermal conductivity and satisfactory mechanical properties. The alloy demonstrated a room temperature thermal conductivity of 105 W/mK and an increase in elongation can be achieved through heat treatment.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Nanoscience & Nanotechnology
Zhibing Ding, Xuanle Zhi, Bin Liu, Hua Hou, Shuai Zhang, Wenmin Guo, Dongrui Chen, Yuhong Zhao
Summary: The effect of Sn addition on the microstructure and mechanical properties of Mg-12Gd-3Y-0.5Zn-0.6Zr alloys was investigated. The addition of Sn increased the number and high temperature stability of Sn3RE5 phases, resulting in an increased elastic modulus of the alloys. It also significantly increased the number of fine circular beta' phases in peak-aged alloys. Suitable addition of Sn endowed the Mg-12Gd-3Y-0.5Zn-0.6Zr-1Sn alloy with excellent comprehensive performance.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(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
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
Chemistry, Physical
Yuguang Li, Feng Guo, Huisheng Cai, Yiwei Wang, Liang Liu
Summary: The quantitative study of rare earth compounds is crucial for the development of magnesium alloy systems. This study successfully separated the matrix and compound in Mg-Zn-Ce-Zr alloy and determined the mass fraction of (Mg, Zn)(12)Ce compound. The results showed that the amount of (Mg, Zn)(12)Ce phase significantly affected the heat deformation organization and properties. Increasing the amount of (Mg, Zn)(12)Ce phase reduced the critical conditions for dynamic recrystallization formation. The study also found that alloys with different Zn contents exhibited different softening mechanisms.
Article
Chemistry, Physical
Ming Li, Xu Wang, Yu Liu, Zhengbing Xiao, Yuanchun Huang
Summary: The heterogeneous bimodal microstructure and its formation mechanism of Mg-Gd-Y-Zn-Zr alloy during iso-thermal compression at 450 degrees C and 0.001 s-1 were investigated. The alloy exhibited bimodal grain size distribution and bimodal texture distribution during uniaxial isothermal compression. Particle-stimulated nucleation (PSN) and continuous dynamic recrystallization (CDRX) were identified as the main grain refinement mechanisms. Inhomogeneous plastic deformation, DRX, and grain boundary pinning effect were determined to be the necessary conditions for the formation of the bimodal microstructure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Huizi Chen, Jian Wang, Xiangchen Meng, Yuming Xie, Yulong Li, Long Wan, Yongxian Huang
Summary: Utilizing friction stir processing, an ultrafine-grained structure was achieved in Mg-Zn-Y-Zr alloy leading to extraordinary superplasticity. Grain refinement and homogeneous dispersion of precipitates were promoted by the coupled thermo-mechanical effect, resulting in an ultra-fined grains size of 1.9 +/- 0.4 μm and a superplastic elongation of 642%. Grain boundary sliding was considered as the predominant superplastic deformation mechanism in ultrafine-grained materials.
Article
Nanoscience & Nanotechnology
Jie Zheng, Zhe Chen, Zhaoming Yan, Zhimin Zhang, Yong Xue
Summary: The proposed alternating ageing-annealing process resulted in a homogeneous microstructure with short rod-shaped LPSO phases and beta ' phases in the Mg-9.5Gd-4Y-2.2Zn-0.5Zr alloy, leading to an excellent strength-ductility synergistic effect. The mechanical properties of the alloy were significantly improved, with a yield strength of 425 MPa, an ultimate tensile strength of 493.2 MPa, and an elongation of 11.2% after heat treatment.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Wenli Wang, Lun He, Xin Yang, Dan Wang
Summary: The study focused on a multi-element mixed rare earth magnesium alloy deposited by selective laser melting, analyzing its microstructure, precipitated phases, and elements segregation. The alloy showed refined equiaxed grains in the scanning tracks and increased microhardness in the center.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
Rui Guo, Xi Zhao, Bo-Wen Hu, Xue-Dong Tian, Qiang Wang, Zhi-Min Zhang
Summary: The hot compression behavior of as-homogenized Mg-9Gd-4Y-2Zn-0.5Zr alloys with different initial morphologies was studied at 450°C and a strain rate of 0.01 s(-1). The microstructure, texture evolution, and dynamic recrystallization (DRX) mechanisms were investigated under various strains. Different recrystallization mechanisms, including particle stimulated nucleation (PSN), discontinuous DRX (DDRX), and continuous DRX (CDRX), were observed during compression. Both the degree of kink and the recrystallization increased with compression, leading to a gradual weakening of the texture.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
Z. Z. Peng, X. H. Shao, Z. M. Liang, D. L. Wang, L. W. Wang, X. L. Ma
Summary: To optimize the mechanical properties of LPSO-containing Mg alloys, a Mg-Zn-Y-Zr alloy with intragranular and free grain boundary LPSO phases was successfully prepared by homogenization. The strengthening and toughening mechanisms were unraveled through transmission electron microscopy characterization and theoretical analysis, revealing the synergistic deformation mechanism of multiple kinking and twinning in the grains. The activation of kinking and twinning depended on the thicknesses of LPSO lamellae and their relative spacing, providing insights for optimizing the design of Mg alloys regulating the microstructure of LPSO phases.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
Wenli Wang, Xin Yang, Kong Kong Wang, Lun He
Summary: In this study, a Mg-Y-Sm-Zn-Zr alloy was fabricated through SLM, and the solidification behavior was investigated. Results showed that the grain size slightly decreased and the grain morphology changed with increased laser power. Additionally, long-term heat preservation in SLM led to coarsening of grains and generation of randomly distributed disc-shaped (Mg, Zn)(3)(Y, Sm) in the grains.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Qiman Wang, Guohua Wu, Xin Tong
Summary: Mg-4Y-3RE-0.5Zr alloy was successfully fabricated using wire arc additive manufacturing (WAAM), and no oxidation inclusion defect, which is commonly observed in Y-containing Mg alloys prepared by laser powder bed fusion (LPBF), was found. However, microstructural inhomogeneity along the building height was observed due to the different cooling rates of different deposited layers and subsequent multiple thermal cycles (MTCs).
Article
Nanoscience & Nanotechnology
Gantao Zhao, Zhirou Zhang, Yuxiu Zhang, Hailong Peng, Zhao Yang, Hiromi Nagaumi, Xuyue Yang
Summary: The effects of hot compression on the mechanical properties and creep behaviors of a Mg-Gd-Y-Zn-Zr alloy were investigated. The results showed that hot compression improved the mechanical properties at room temperature but decreased creep resistance at elevated temperature.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Zhen Wei, Jinghuai Zhang, Rirong Bao, Ruizhi Wu, Hao Zhang
Summary: The strength of Mg-8.5Li-7.5Zn-1.5Y alloy is significantly enhanced through simple heat treatment. The yield strength increment of 173 MPa is rarely reported in Mg alloys. The formation of abundant needle-shaped α-Mg precipitates uniformly distributed in the β-Li matrix is mainly responsible for the remarkable improvement in yield strength. This new finding is expected to contribute to the design of high-performance Mg-Li alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Thermodynamics
Song-Mao Liang, Peisheng Wang, Rainer Schmid-Fetzer
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2016)
Article
Thermodynamics
Hsien-Ming Hsiao, Song-Mao Liang, Rainer Schmid-Fetzer, Yee-wen Yen
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2016)
Article
Thermodynamics
Song-Mao Liang, Rainer Schmid-Fetzer
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2016)
Article
Metallurgy & Metallurgical Engineering
Martin Druee, Song-Mao Liang, Martin Seyring, Artem Kozlov, Xiaoyan Song, Markus Rettenmayr, Rainer Schmid-Fetzer
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
(2017)
Article
Chemistry, Physical
Song-Mao Liang, Martin Druee, Artem Kozlov, Markus Rettenmayr, Rainer Schmid-Fetzer
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Chemistry, Physical
Song-Mao Liang, Rainer Schmid-Fetzer
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2017)
Article
Metallurgy & Metallurgical Engineering
Song-Mao Liang, Artem Kozlov, Rainer Schmid-Fetzer
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
(2018)
Article
Materials Science, Ceramics
Song-Mao Liang, Rainer Schmid-Fetzer
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2018)
Article
Thermodynamics
Martin Seyring, Martin Druee, Artem Kozlov, Song-Mao Liang, Rainer Schmid-Fetzer, Markus Rettenmayr
THERMOCHIMICA ACTA
(2018)
Article
Thermodynamics
Song-Mao Liang, Harish K. Singh, Hongbin Zhang, Rainer Schmid-Fetzer
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2019)
Article
Materials Science, Multidisciplinary
Song-Mao Liang, Zhicheng Wu, Stefanie Sandloebes, Sandra Korte-Kerzel, Rainer Schmid-Fetzer
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Fan Zhang, Songmao Liang, Chuan Zhang, Shuanglin Chen, Duchao Lv, Weisheng Cao, Sindo Kou
Summary: This paper investigates cracking susceptibility in three series of aluminum alloys through simulation, calculating cracking susceptible index values and constructing cracking susceptible maps, which clearly demonstrate the effects of major and minor alloying elements.
Article
Metallurgy & Metallurgical Engineering
Janet M. Meier, Jiashi Miao, Song-Mao Liang, Jun Zhu, Chuan Zhang, Josh Caris, Alan A. Luo
Summary: This study conducted key experiments and CALPHAD calculations to provide critical understanding of high-strength Mg-Gd-Y-Zn alloys. The experimental results were used to validate and improve the thermodynamic database of this alloy system, and accurately predict the development of promising high-strength Mg-Gd-Y-Zn alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Editorial Material
Materials Science, Multidisciplinary
Song-Mao Liang, Bin Ouyang, Shih-kang Lin, Hans J. Seifert
Article
Chemistry, Physical
Song-Mao Liang, Franziska Taubert, Artem Kozlov, Juergen Seidel, Florian Mertens, Rainer Schmid-Fetzer
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)
