Article
Chemistry, Physical
Viktoria Hoppe, Patrycja Szymczyk-Ziolkowska, Malgorzata Rusinska, Bogdan Dybala, Dominik Poradowski, Maciej Janeczek
Summary: This study comprehensively investigated the Ti-13Nb-13Zr alloy, including its microstructure, mechanical properties, physicochemical characteristics, corrosion resistance, and cytotoxicity. The results showed that the alloy has good mechanical properties and corrosion resistance, making it suitable for medical implant materials.
Article
Chemistry, Physical
ChangBo Yi, YiXiang Yuan, Lei Zhang, YeHua Jiang, ZhengYuan He
Summary: This study investigated the density, microstructure, mechanical properties, and antibacterial properties of Ti-35Nb-7Zr-xCu alloys, as well as the influence of Cu element on these properties. The results showed that the Ti-35Nb-7Zr-10Cu alloy with 10 wt% Cu exhibited the best combination of mechanical and antibacterial properties, making it suitable for human hard tissue replacements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Huijin Jin, Shaobin Shi, Jianjun Li, Xianxian Wang, Chenxi Yang
Summary: This study investigates the mechanical properties, microstructural characteristics, and deformation behavior of a novel high-strength metastable beta alloy. The study demonstrates that by controlling the size, morphology, and orientation combinations of the alpha phase in the beta matrix, a good combination of tensile strength and total elongation can be achieved. The microstructural characteristics of the alpha phase consisting of various alpha structures were obtained through specific heat treatments. The findings suggest that the acicular alpha precipitates act as dislocation barriers, leading to an improvement in the strength of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yulong Li, Cheng Wang, Xuewen Li, Lin Zhang, Pan Pan, Min Lei
Summary: YAG ceramic was successfully brazed to Kovar alloy using AgCuTi filler metal under a high vacuum condition. The wetting behavior and interfacial microstructure of the brazed joints were investigated. The joint structure was characterized as YAG/Y2O3/(Fe, Ni)Ti/Ag(s, s) + Cu(s, s)/Fe2Ti + Ni3Ti/Fe2Ti/Kovar. The effects of brazing temperature on the joint structure and mechanical properties were studied.
Article
Chemistry, Physical
N. Yurchenko, E. Panina, D. Kapustin, V. Novikov, D. Volosevich, O. Klimova-Korsmik, G. Salishchev, S. Zherebtsov, N. Stepanov
Summary: The structure, mechanical properties, and oxidation behavior of an Al55Cr23Ti22 lightweight medium-entropy intermetallic alloy were studied. The alloy exhibited good plasticity and strength at both room temperature and high temperatures, and showed excellent oxidation resistance. These results suggest that multicomponent trialuminides can be used as potential structural materials for high-temperature applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Xiaotong Bao, Talante Juma, Xuan Li, Jili Ding, Xiaobin Liu, Shanshan Liu, Junwen Li, Yongping Cao, Tao Zhang
Summary: In this research, a new series of beta duplex phase Ti50Zr25Nb25-xAgx alloys were prepared by rapid solidification process. The microstructure, mechanical properties, antibacterial properties, ion release behavior, and biocompatibility of the alloys were systematically investigated. The alloys exhibited low Young's modulus, high strength and hardness, and good antibacterial activity and biocompatibility.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Peng Qi, Bolong Li, Tongbo Wang, Lian Zhou, Zuoren Nie
Summary: By adjusting the Fe content, the microstructure and mechanical properties of Ti-6Zr-xFe biomedical titanium alloys can be changed to enhance hardness and tensile strength. In addition, alloys with the addition of 4 and 5 wt % Fe exhibit excellent corrosion resistance, demonstrating their potential as biomedical materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Fangxia Xie, Jiabing Huang, Hao Yang, Xueming He
Summary: The Ti-10Mo/xHA composites fabricated by powder metallurgy showed excellent microstructural evolution, mechanical properties, and biological activity. As the HA content increased, the elastic modulus increased while the compressive strength decreased, and excessive HA content resulted in an increase in microcracks and pores.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Wei Yang, Shu-Jie Pang, Guan Wang, Ying Liu, Peter K. Liaw, Tao Zhang
Summary: Ti-Zr-Hf-Nb-Ta-Sn high-entropy alloys with good mechanical properties, corrosion resistance, and biocompatibility were developed as potential biomaterials. The addition of Sn improved the compressive yield strengths and hardness of the alloys. These alloys also possessed relatively low Young's moduli. The Ti-Zr-Hf-Nb-Ta-Sn alloys with the integration of high yield strength, relatively low Young's modulus, and good corrosion resistance and biocompatibility are promising for biomedical applications.
Article
Materials Science, Multidisciplinary
Chenhe Wang, Nengbin Hua, Zhenlong Liao, Wei Yang, Shujie Pang, Peter K. Liaw, Tao Zhang
Summary: Ti47Cu38-xZr7.5Fe2.5Sn2Si1Ag2Pdx (x=1, 2, 3, and 4 atomic percent, at. pct) bulk metallic glasses with potential for biomedical applications were fabricated by copper-mold casting, exhibiting high glass-forming ability, relatively low Young's modulus, high compressive strength, and excellent biocompatibility. The addition of Pd improved plasticity and bio-corrosion resistance, making these BMGs promising as biomedical materials.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jun-Min Zhang, Zong-Yan Zhao, Qing-Hua Chen, Xing-Hu Chen, Yin-He Li
Summary: The Ti-25Ta-xAg alloy can form a stable ternary alloy system with Ag precipitation at the grain boundary. Through first-principles calculations, it was found that the critical temperature for Ag precipitation in the Ti-Ta-Ag alloy is around 2200 K. Additionally, changes in lattice constants and mechanical properties occur when the Ag solid solubility reaches x=0.8, due to a shift in the electronic states of Ag. These findings offer theoretical guidance for the application of Ti-Ta-Ag ternary alloys in biomedicine.
Article
Materials Science, Multidisciplinary
Cheng Xin, Nan Wang, Yongnan Chen, Binbin He, Qinyang Zhao, Lei Chen, Yufei Tang, Binli Luo, Yongqing Zhao, Xiaokang Yang
Summary: The study found that the morphology of the Ti2Cu phase in TiCu alloy significantly affects biological corrosion and antibacterial properties, with lamellar Ti2Cu phase having a higher galvanic interface and releasing more Cu2+ ions, resulting in a 99.5% antibacterial rate and great potential for medical implant applications.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Zhongjie Li, Hao Xu, Anping Dong, Jiajun Qiu, Lin He, Ting Zhang, Dafan Du, Hui Xing, Guoliang Zhu, Donghong Wang, Baode Sun
Summary: A novel Ti-Nb-Mg alloy was fabricated by MA and SPS, with different BPR, ball-milling time and composition affecting the morphology evolution, microstructure, mechanical and biological properties. Increasing Mg content from 3 wt% to 5 wt% led to deterioration in strength and fracture strain of the alloys, while differences in element distribution were observed under different BPR.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Xiaotong Bao, Talatibaike Maimaitijuma, Bingxiao Yu, Xuan Li, Guoguo Xi, Shanshan Liu, Yongping Cao, Tao Zhang
Summary: The newly developed 8-type biomedical alloys exhibit excellent mechanical properties, outstanding antibacterial properties, and good biocompatibility, making them promising for applications in antibacterial biomedical implants and associated materials.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ziqi Guan, Jing Bai, Yu Zhang, Shaodong Sun, Jianglong Gu, Xinzeng Liang, Yudong Zhang, Claude Esling, Xiang Zhao, Liang Zuo
Summary: The mechanical properties of Ni-Mn-Ti alloys were optimized by co-doping with Cu and B, and the reasons for the enhanced mechanical properties were systematically studied. The directionally solidified alloy (Ni50Mn30.75Ti18.25Cu1)99.8B0.2 achieved a maximum compressive strength and strain of 2860 MPa and 20.4% at room temperature, respectively. It also exhibited a large adiabatic temperature change during stress-induced martensitic transformation and maintained good cyclability of elastocaloric effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Tatyana Molodtsova, Mikhail Gorshenkov, Evgeny Kolesnikov, Igor Leontyev, Vasily Kaichev, Denis Zhigunov, Nikita Faddeev, Alexandra Kuriganova, Nina Smirnova
Summary: A series of nano-In2O3 materials with tunable cubic-to-rhombohedral phase ratios were synthesized through pulse alternating current electrosynthesis and air annealing. The synthetic conditions greatly influenced the structural, morphological, and optical properties of In2O3. The c/rh-In2O3 synthesized using NaCl aqueous electrolyte showed enhanced photoelectrochemical activity, photoconversion efficiency, and long-term stability. These results contribute to a better understanding of designing metal oxide phase-junctions for photoelectrochemical applications.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Applied
Hao Wang, Tetsu Ichitsubo, Hidemi Kato
Summary: The dynamic relaxation behavior of Pd42.5Ni7.5Cu30P20 metallic glass was studied at various temperatures and angular frequencies. The results show the presence of three different relaxation modes, each associated with specific activation energies and motion characteristics. These modes were also observed in the quasi-static creep compliance measurements and accurately simulated using the dynamic moduli and fitting parameters.
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Akira Takeuchi, Takeshi Wada, Kenji Amiya, Hidemi Kato, Takeshi Nagase
Summary: This study designed four Mo-Ni-Rh-Ru and Fe-Mo-Ni-Rh-Ru high-entropy alloys, and confirmed their hexagonal close-packed crystal structures through X-ray diffraction and scanning electron microscopy. The Fe20Mo20Ni20Rh20Ru20 alloy exhibited significantly higher mixing entropy than configuration entropy after annealing at 1700K for 1 hour, indicating its ultrahigh-mixing-entropy character.
MATERIALS TRANSACTIONS
(2023)
Article
Instruments & Instrumentation
F. Hori, Y. Morikuni, H. Obayashi, A. Iwase, T. Matsui, Y. Kaneno, T. Wada, H. Kato, N. Ishikawa
Summary: The hypo-eutectic alloy of Zr45Cu45Al10 was irradiated with 16 MeV and 200 MeV Au ions at room temperature. The effects of irradiation on the structure and hardness of the alloy were investigated using X-ray diffraction (XRD), Extended X-ray absorption fine structure (EXAFS), micro-Vickers hardness, and positron annihilation measurements. Amorphization was confirmed after irradiation, but the change in hardness strongly depended on the irradiation energy. The behavior of hardness showed a decrease and increase trend with increasing fluence for 16 MeV irradiation, while no decreasing trend was observed for 200 MeV irradiation. The EXAFS measurement revealed different changing ratios of Cu-Cu and Cu-Zr bonds around each Cu atom between low energy and high energy Au ion irradiation.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Physics, Multidisciplinary
Yu-Zhang Jiao, Dmitry V. Louzguine-Luzgin, Ke-Fu Yao, Zheng-Jun Zhang, Na Chen
Summary: In this study, a magnetic semiconductor with a high Curie temperature is presented for the development of spintronic devices in next-generation computing systems. The semiconductor exhibits low resistivity and high saturation magnetization at room temperature, and forms a heterojunction with p-type silicon, showing rectifying characteristics. These findings provide design principles for high Curie temperature magnetic semiconductors with determined conduction types, which are crucial for realizing nonvolatile spin-based transistors in information technology beyond Si-based systems.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Nanoscience & Nanotechnology
Kota Kurabayashi, Takeshi Wada, Hidemi Kato
Summary: This letter investigates the joining of immiscible pure iron and pure magnesium using solid metal deal-loying. The Fe-Mg bicontinuous composite was formed at the weld interface by diffusion bonding and SMD. The Ni composition in the interlayer greatly influenced the weld strength, with optimal results obtained at 30 < x < 50 at.%.
SCRIPTA MATERIALIA
(2023)
Article
Multidisciplinary Sciences
Daria Chernysheva, Maksim Konstantinov, Ekaterina Sidash, Tatiana Baranova, Victor Klushin, Denis Tokarev, Veronica Andreeva, Evgeny Kolesnikov, Vasily Kaichev, Mikhail Gorshenkov, Nina Smirnova
Summary: Nowadays, commercial electric double-layer supercapacitors mainly use porous activated carbons obtained from renewable plant biomass. In this study, carbon fibers were prepared using fungi (Fomes fomentarius) as a bio-template. The carbon materials showed good electrochemical properties and excellent stability after 25,000 charge/discharge cycles, making them a prospective candidate for electrode material in symmetrical supercapacitors.
Article
Materials Science, Multidisciplinary
Takeshi Wada, Pierre-Antoine Geslin, Daixu Wei, Hidemi Kato
Summary: Liquid metal dealloying is a promising technique to produce bicontinuous porous metals with high specific surface areas. However, it has not been applied to produce nickel-containing porous metals because of the lack of a suitable metallic bath. In this study, the authors demonstrate that nickel-containing porous metals can be produced by partial liquid metal dealloying, and the amount of soluble component in the resulting microstructure can be tuned by carefully choosing the bath element.
COMMUNICATIONS MATERIALS
(2023)
Article
Chemistry, Physical
D. V. Louzguine-Luzgin, Yu. P. Ivanov, A. L. Greer
Summary: The crystallization behavior of a Cu58Y37Sc5 metallic glassy alloy was investigated using various methods. Differential scanning and isothermal calorimetries were performed to study the phase transformations. X-ray diffractometry studies showed the simultaneous formation of Cu2Y, CuY, and CuSc crystalline phases, indicating eutectic crystallization, while the isothermal crystallization kinetics corresponded to primary crystallization. Transmission electron microscopy observations revealed a complex crystallization process involving heterogeneous nucleation on pre-existing particles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Multidisciplinary
Mohamed Asran Hassan, E. Chernyshova, E. Argunov, A. Khanina, D. Karpenkov, M. Seredina, F. Bochkanov, Samah K. Elshamndy, M. Gorshenkov, A. Voronin, V Khovaylo, A. El-Khouly
Summary: This work experimentally investigates the thermoelectric and structural characteristics of new double half Heusler alloys Hf2-xTixFeNiSb2 (x= 0, 0.15, 0.25 and 0.4). The samples were synthesized using different techniques and their crystal structure was examined via XRD. Homogeneity and high density were achieved in the fabricated samples. The thermoelectric properties of the samples were studied and the highest thermoelectric figure of merit was obtained for Hf1.75Ti0.25FeNiSb2.
Article
Nanoscience & Nanotechnology
D. V. Louzguine-Luzgin, E. N. Zanaeva, F. R. Pratama, T. Wada, S. Ito
Summary: The structural features of Pd42.5Cu30Ni7.5P20 and Pt42.5Cu27Ni9.5P21 metallic glasses were examined using high-resolution transmission electron microscopy. Pd42.5Cu30Ni7.5P20 exhibited true bulk glass-forming behavior without crystalline particles/nuclei, while Pt42.5Cu27Ni9.5P21 was a crystal growth-controlled bulk glass-former containing nanoparticles with a different chemical composition and an average size of about 1 nm. These structural differences influenced the mechanical properties at room temperature. Thermodynamic calculations supported the observed features.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
D. V. Louzguine-Luzgin, K. Shinozaki
Summary: In this study, glassy oxide/metallic composite materials were produced by sintering powdered oxide glass reinforced with metallic glassy ribbons in the supercooled liquid regions. The composite samples exhibited better mechanical properties compared to single phase oxide samples.
