Article
Materials Science, Multidisciplinary
Jianwei Dai, Qiangsheng Dong, Yujin Nie, Yongqiang Jia, Chenglin Chu, Xiaobo Zhang
Summary: The microstructures, mechanical properties, and corrosion behaviors of Mg-4Gd-xY-1Zn-0.5Ca-1Zr (x = 1, 3, and 5 wt.%) alloys under as-cast condition were investigated. It was found that Y addition significantly improved the yield strength and corrosion resistance of the alloys.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Viacheslav Bazhenov, Anastasia Lyskovich, Anna Li, Vasily Bautin, Alexander Komissarov, Andrey Koltygin, Andrey Bazlov, Alexey Tokar, Denis Ten, Aigul Mukhametshina
Summary: This study focuses on the effects of heat treatment on the microstructure, mechanical properties, and corrosion resistance of biodegradable Mg-Zn-Ga alloys, showing that solid-solution heat treatment can enhance mechanical properties and reduce corrosion rate.
Article
Chemistry, Physical
Xuejian Wang, Yubo Zhang, Enyu Guo, Zongning Chen, Huijun Kang, Xueqin Liu, Pei Han, Tongmin Wang
Summary: The addition of indium was found to enhance the bio-corrosion resistance of Mg-5Sn-xIn alloys, leading to a decrease in corrosion rate without inducing cytotoxicity to cells. Mg-5Sn-4In alloy exhibited the minimum corrosion rate and improved cytocompatibility, making indium an effective alloying element for tuning the corrosion properties of Mg-Sn based alloys for biomedical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hongwei Liao, Manyuan Wu, Dunying Deng, Wensheng Zhong, Bichen Xiong, Yonggang Tong
Summary: This study investigates the effects of Ti content on the microstructures, mechanical properties, and corrosion behavior of TixZrNb alloys. The results show that the dendritic morphology of the alloys changes with increasing Ti content, with the growth of dendrite arms and a decrease in the inter-dendritic zone. The Ti1ZrNb alloy exhibits the highest yield strength and hardness, while the Ti1.5ZrNb alloy demonstrates the best elastic deformation performance. In terms of corrosion behavior, the Ti1.5ZrNb alloy outperforms other alloys in a 3.5 wt.% NaCl solution, while the Ti2ZrNb alloy is more susceptible to pitting corrosion.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Cheng Chen, Chenrong Ling, Yinjin Shao, Youwen Yang, Dongsheng Wang, Cijun Shuai
Summary: Alloying treatment with rare earth yttrium (Y) was adopted to improve the overall performance of Mg-Zn-Zr alloy, resulting in the formation of quasicrystal I-phase. Laser-processed ZW61 parts showed reduced corrosion rate and improved strength and plasticity, making them a competitive candidate for orthopedics device application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xinxin Dong, Bo Wei, Dominik Legut, Haijun Zhang, Ruifeng Zhang
Summary: Mg-Zn alloys are promising as biodegradable materials due to their excellent mechanical properties and biocompatibility, but their corrosion behavior poses challenges for biomedical applications. By constructing Pourbaix diagrams based on first principles, researchers found that different alloy compositions exhibit unique corrosion mechanisms, such as galvanic corrosion in Mg-rich alloys and Zn corrosion in Zn-rich alloys. The presence of Cl ions in the environment has also been shown to influence the corrosion behavior of the alloys, highlighting the importance of understanding the alloy's degradation mechanisms for future design improvements.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Multidisciplinary Sciences
Edwin Andrew Ofudje, James Asamu Akande, Ezekiel Folorunso Sodiya, Gabriel O. Ajayi, Adeniyi John Ademoyegun, Abdullah G. Al-Sehemi, Yasar N. Kavil, Ammar M. Bakheet
Summary: There is a high demand for bioactive and non-toxic biomaterials in tissue engineering applications. Hydroxyapatite (HAp) and HAp/clay nanocomposites have been developed to mimic natural HAp and provide special properties to the biomaterial. The functional groups properties, crystallinity, morphology, and behavior in saline solution and simulated body fluids were analyzed, confirming the potential application of HAp/clay nanocomposites in bone tissue engineering.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Yuzhao Xu, Jingyuan Li, Mingfan Qi, Wenhui Guo, Yue Deng
Summary: This study investigated the influence of extrusion temperature on the microstructure, mechanical properties, and corrosion behavior of ZGMS alloy. The results showed that lower extrusion temperature led to refined grain size and improved mechanical properties. The alloy exhibited excellent mechanical properties and low corrosion rate after extrusion at 360 degrees Celsius.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Shi Huina, He Junguang, Wen Jiuba, Li Huan, Tian Peiwu
Summary: Micro-alloying treatment with the addition of Zn, Zr, and Dy can significantly improve the corrosion resistance and mechanical properties of magnesium alloy by refining the grain size, generating a second phase, and making the microstructure more uniform.
RARE METAL MATERIALS AND ENGINEERING
(2021)
Article
Chemistry, Physical
Yunpeng Hu, Delong Dong, Xiangyu Wang, Hongtang Chen, Yang Qiao
Summary: The study found that increasing manganese content in Mg-Mn-Zn alloys improved their mechanical properties and corrosion resistance. Among the tested alloys, Mg-1.0Mn-2.0Zn showed the best performance and is more suitable for use in human body fluids.
Article
Metallurgy & Metallurgical Engineering
Penbe Kurt, S. Can Kurnaz
Summary: In this study, Mg-4Sn-2Al alloy was produced by gravity casting and the effect of alloying elements (2% La and 0.15% Ti) on its microstructure, mechanical properties, and corrosion rate was investigated. The results showed that the addition of La and Ti improved the mechanical properties and reduced the corrosion rate of the alloy.
INTERNATIONAL JOURNAL OF METALCASTING
(2023)
Article
Metallurgy & Metallurgical Engineering
Pei-hao Zhao, Xiao-lan Wu, Yang Liu, Kun-yuan Gao, Sheng-ping Wen, Wu Wei, Li Rong, Hui Huang, Hong Wu, De-jing Zhou, Qian Zhang, Zuo-ren Nie
Summary: The effect of grain morphology and precipitates on the mechanical properties and corrosion behavior of two commercial 7N01 alloys was studied. The study found that the recrystallization degree and distribution of grain boundary precipitates play a role in determining the strength and corrosion resistance of the alloys.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Donglei He, Hao Gong, Ziyue Zhang, Yang Zheng, Hu Zhang, Yan Li
Summary: The in-vitro corrosion behaviors of extruded Mg-xGa (x = 1, 3, 5) alloys in alpha minimum essential medium (alpha-MEM) were investigated. The bilayer corrosion film was composed of an outer layer dominated by amorphous phosphates-carbonates and an inner layer dominated by MgO-Mg(OH)(2). Pure Mg and Mg-1Ga exhibited low corrosion rates and homogeneous corrosion behaviors owing to the protection from the compact corrosion films. By contrast, Mg-3Ga and Mg-5Ga exhibited high corrosion rates and inhomogeneous corrosion behaviors owing to the bulky micro-galvanic corrosion caused by Mg5Ga2. Based on these results, possible corrosion models were developed.
Article
Materials Science, Multidisciplinary
Huai Yao, Shubo Wang, Yi Xiong, Xinying Shi, Harishchandra Singh, Marko Huttula, Wei Cao
Summary: In this study, the microstructure, mechanical properties, and corrosion behavior of Mg-1.8Zn-0.5Zr alloys with different Gd additions were investigated. It was found that the grain size decreased gradually with Gd alloying. The mechanical properties and corrosion resistance of the alloys first improved and then weakened with increasing Gd content. The optimal mechanical properties and corrosion resistance were achieved with a 1.5 wt.% Gd addition. A three-stage corrosion mechanism was proposed through electrochemical measurements and corroded surface analyses.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
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
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)