Article
Materials Science, Ceramics
Majid Samavatian, Reza Gholamipour, Dmitry Olegovich Bokov, Wanich Suksatan, Vahid Samavatian, Morteza Mahmoodan
Summary: In this study, a machine learning model was developed to predict the energy dissipation distribution on the surface of metallic glasses. It was found that high, low, and moderate energy regions exhibit different behavior patterns.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
D. P. Wang, H. T. Zhang, P. Y. Guo, B. A. Sun, Y. X. Wang
Summary: In a Cu50Zr50 metallic glass, local energy dissipation near the shear band plane was characterized using an amplitude-modulation atomic force microscope. The shear band plane exhibited higher energy dissipation compared to the undeformed metallic glass surface. Energy dissipation along the propagating direction of shear bands was periodically distributed due to density changes and discontinuous growth of shear offset during the sliding process.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
Jianping Lai, Jinhui Liu, Hailong Hu, Jiaxin Yu, An Zhang, Weifeng Yuan, Zhiming Gao
Summary: The contribution of hardness and work hardening to the wear resistance of Pt-based metallic surfaces under reciprocating sliding contact were investigated using atomic force microscopy. It was found that Pt(1 1 1) exhibited a larger adhesion than Pt-BMG at low loads, while Pt-BMG showed higher hardness and was expected to have higher wear resistance at high loads. However, Pt(1 1 1) actually performed better, possibly due to the work hardening mechanism associated with dislocated-mediated deformation.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Himanshu Rai, Deepa Thakur, Deepak Kumar, Ashutosh Pitkar, Zhijiang Ye, Viswanath Balakrishnan, Nitya Nand Gosvami
Summary: The nanoscale wear behavior of monolayer WS2 was investigated using a combination of AFM and MD simulations. The critical load to initiate wear was found to be higher in the interior region compared to the edge region, and there was significant variability in critical load values in both regions. MD simulations revealed that structural defects could explain the observed difference in wear behavior.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Wujoon Cha, Matthew F. Campbell, Kathryn Hasz, Samuel M. Nicaise, Drew E. Lilley, Takaaki Sato, Robert W. Carpick, Igor Bargatin
Summary: The new cantilever probes with hollow cross-sections and alumina walls demonstrate lower spring constants and higher bandwidths compared to traditional solid counterparts, allowing for quicker response to topography changes while being more resistant to wear.
Article
Engineering, Mechanical
Yangping Liu, Annsley Mace, Hwaran Lee, Maria Camargo, Jeremy L. Gilbert
Summary: Wear and tribocorrosion of CoCrMo alloys can lead to adverse local tissue reactions, but the underlying tribological and electrochemical processes at the scale of passive oxide films are not well understood. In this study, an AFM-based 'image-wear-image' tribology method was used to investigate the sub-nanoscale wear and tribocorrosion of traditional and additively manufactured CoCrMo and CoCrMoW alloys. Results showed atomic wear and elasto-plastic driven wear near the oxide thickness, with average nanowear depth being significantly influenced by contact stress, alloy, and environment. Surface degradation varied within grains in LC CoCrMo and within intragranular cellular structures in AM CoCrMoW.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Haoran Ma, Roland Bennewitz
Summary: In this study, atomic force microscopy was used to investigate nanoscale friction on metallic glasses in corrosive solutions. The results revealed the influence of corrosion on nanoscale friction and provided insights into the physicochemical processes of surface dissolution.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. S. Trifonov, A. Lubenchenko, D. Louzguine-Luzgin
Summary: This study investigated the effect of cryogenic cycling treatment on the elastic properties of a Fe48Cr15Mo14C15B6Y2 bulk metallic glass containing a nanometer scale native oxide film. The alloy showed surface elastic stiffening on thermal cycling in liquid nitrogen which relaxed in 2 days. These results were compared with previous studies on bulk metallic glasses.
Article
Chemistry, Multidisciplinary
Levente Juhasz, Roberto D. Ortuso, Kaori Sugihara
Summary: The study utilized quantitative friction force microscopy to measure the response of polydiacetylene to lateral forces, revealing the necessity of applying shear forces to characterize it at the nanoscale. The experiment confirmed the erroneous nature of the hypothesis regarding the higher force sensitivity at the edges and discovered a correlation between mechanochromism and thermochromism.
Article
Materials Science, Multidisciplinary
Kazumasa Nakamura, Makoto Minegishi, Hitomi Kanno, Shiho Ishii, Takashi Moribayashi, Tsugiko Takase
Summary: In this study, carbon composites were prepared using furan resins filled with vapor-grown carbon fibers (VGCFs). The adhesion between the matrix and VGCFs affected the resistances and densities of the composites, which remained almost constant with increasing VGCF concentration. The micro-friction coefficients of the matrix increased with VGCF concentration due to an increase in surface roughness, while the micro-friction coefficients of the interfaces between the matrix and VGCFs remained almost constant, strongly correlated with the macro-friction coefficients of the composites.
Article
Chemistry, Multidisciplinary
Hao Luo, Xiaoduo Wang, Yangdong Wen, Shendi Li, Tianyao Zhang, Chaodi Jiang, Feifei Wang, Lianqing Liu, Haibo Yu
Summary: Microsphere-assisted super-resolution imaging technology uses white light to provide label-free, real-time dynamic imaging, with potential applications in living systems and nanoscale detection of semiconductor chips. However, the current scanning imaging method based on microsphere superlens cannot achieve super resolution optical imaging of complex curved surfaces.
Article
Mechanics
Abbasali Abouei Mehrizi, Qiao Liu, Hao Wang
Summary: The extended thin-film region adjacent to the contact line plays a crucial role in heat transfer and wetting dynamics by enhancing heat transfer and influencing contact line morphology. The study focused on advancing contact line morphology induced by water vapor condensation at low rates. Results showed that the morphology of the liquid film in this process differs from nonvolatile cases, with a precursor nanofilm and nanodroplets detected beyond the contact line.
Article
Physics, Applied
Shiquan Lin, Zhong Lin Wang
Summary: Inspired by TENG, scanning TENG is proposed for local surface charge density measurement using atomic force microscopy. The technique taps a conductive tip above a charged dielectric surface to induce an AC, with Fourier analysis showing a linear relation to surface charge density. Results demonstrate its power in probing nanoscale charge transfer in contact-electrification.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Huimin Qiao, Pin Zhao, Owoong Kwon, Ahrum Sohn, Fangping Zhuo, Dong-Min Lee, Changhyo Sun, Daehee Seol, Daesu Lee, Sang-Woo Kim, Yunseok Kim
Summary: The triboelectric effect, a ubiquitous phenomenon in which surfaces of two materials are easily charged during contact-separation, is influenced by the competition between flexoelectricity and triboelectricity in the presence of a strain gradient. This competition can modulate the direction and amount of charge transfer, leading to a distinctive phenomenon where charge transfer is reversed with varying forces. The experimental results support the proposed mechanism and suggest that manipulating the mixed triboelectric and flexoelectric effects can modulate both the amount and direction of charge transfer.
Article
Materials Science, Multidisciplinary
D. P. Wang, B. A. Sun, P. Y. Guo, Y. X. Geng, Y. X. Wang, C. T. Liu
Summary: In this study, bilayer shear bands with a spacing of hundreds of nanometers were prepared in a Zr-based metallic glass. The elastic properties of the bilayer shear bands were detected using a contact-resonance atomic force microscope. Compared with single shear bands, the core of the bilayer shear bands showed hardening, possibly due to load releasing and position adjustment during severe plastic deformation. This research reveals a new plastic deformation mechanism in the form of layer by layer, offering a promising strategy to control shear bands' stability and enhance the plasticity of metallic glasses.
Article
Materials Science, Multidisciplinary
V. Semin, J. Jiang, V. I. Polkin, D. V. Louzguine-Luzgin
Summary: Nanocrystalline Ti-Ni-Cu-Co system alloys exhibit excellent stability of superelastic behavior, but residual elastic stresses remain an issue in their implementation in microelectromechanical systems. By studying the structure formation and stress evolution, it was found that elastic stresses in the B2 phase can be reduced by half through isothermal annealing.
Article
Biochemistry & Molecular Biology
Ilya Lyagin, Nikolay Stepanov, Denis Presnov, Artem Trifonov, Elena Efremenko
Summary: The self-assembling of nanosized materials is a promising field for research and development, and various approaches are used to obtain inorganic, organic, and composite nanomaterials with different functionality. In this study, self-assembling nanocomplexes were prepared using enzymes and polypeptides, and their properties were investigated using low-molecular weight biologically active compounds. Molecular modeling was used to screen the possible formation of catalytically active self-assembling nanocomplexes, and two enzymes and two compounds were selected for further characterization. These nanocomplexes showed significant improvement in the antibacterial activity of colistin and polymyxin B against both Gram-positive and Gram-negative bacteria.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Yugen Chen, Fumitaka Ishiwari, Tomoya Fukui, Takashi Kajitani, Haonan Liu, Xiaobin Liang, Ken Nakajima, Masatoshi Tokita, Takanori Fukushima
Summary: Polydimethylsiloxane (PDMS) is widely used due to its unique physical and chemical properties, and covalent cross-linking is commonly used to cure it. However, by incorporating terminal groups with strong intermolecular interactions, a non-covalent network can be formed, greatly improving the mechanical properties of PDMS. Through the design of a terminal group capable of two-dimensional (2D) assembly, a dramatic change in the polymer from a fluid to a viscous solid can be induced. Additionally, simply replacing a hydrogen with a methoxy group leads to extraordinary enhancement of the mechanical properties, giving rise to a thermoplastic PDMS material without covalent cross-linking.
Article
Nanoscience & Nanotechnology
Xiaobin Liang, Takashi Kojima, Makiko Ito, Naoya Amino, Haonan Liu, Masataka Koishi, Ken Nakajima
Summary: In situ atomic force microscopy (AFM) nanomechanical technique was used to directly visualize the micromechanical behaviors of polymer nanocomposites during compressive strain. The stress distribution image of carbon black (CB)-filled rubber at the nanoscale was obtained for the first time, revealing the microscopic reinforcement mechanisms and heterogeneous deformation behaviors. The stress concentrations near the CB particles formed a network structure which acted as the key reinforcement mechanism. The finite-element method (FEM) simulations reproduced the heterogeneity in stress distribution, confirming the insights provided by the AFM experiments.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shoichiro Aoki, Tatsuro Yoshida, Hung K. Nguyen, Ken Nakajima, Tomoyasu Hirai, Yoshinobu Nakamura, Syuji Fujii
Summary: Cubic liquid marbles (LMs) were fabricated using different epoxy monomers and polymer plates as stabilizers. Cubic polymer particles were synthesized by exposing the LMs to NH3 vapor, and the effect of solubility parameters (SPs) of the epoxy monomers on particle formation was investigated. The shapes of the LMs and resulting polymer particles could be controlled by adjusting the number of polymer plates and coalescence of the LMs.
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
Multidisciplinary Sciences
Xuexi Yan, Yixiao Jiang, Qianqian Jin, Tingting Yao, Weizhen Wang, Ang Tao, Chunyang Gao, Xiang Li, Chunlin Chen, Hengqiang Ye, Xiu-Liang Ma
Summary: By combining transmission electron microscopy, first-principles calculations, and cathodoluminescence spectroscopy, we demonstrate unexpected strong interfacial interactions at the incoherent AlN/Al2O3 (0001) interface with a large mismatch, which result in the formation of misfit dislocation networks and stacking faults rarely observed at other incoherent interfaces. The strong interfacial interactions significantly tailor the interfacial atomic structure and electronic properties, leading to a reduced band gap and strong interfacial ultraviolet light emission. These findings suggest the potential of incoherent interfaces in developing novel heterojunction materials and devices.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Hung K. Nguyen, Atsuomi Shundo, Makiko Ito, Bede Pittenger, Satoru Yamamoto, Keiji Tanaka, Ken Nakajima
Summary: Interfacial polymer layers with nanoscale size enhance the fracture toughness of structural nanocomposites. However, understanding their mechanical dynamics and toughening mechanisms remains a challenge.
ACS APPLIED MATERIALS & INTERFACES
(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
Polymer Science
Michio Ono, Ken Nakajima
Summary: The nano-scale elastic modulus of a phase-separated polyolefin blend consisting of iPP and EO was investigated using AFM. The elastic modulus of the EO domain was found to be distributed differently depending on the annealing temperature, indicating that the annealing temperature plays a role in relieving the stress within the EO domain.
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
Chemistry, Physical
S. Romankov, Y. C. Park, Y. Miyauchi, D. V. Louzguine-Luzgin, S. Komarov
Summary: W-based alloyed coatings with variable W content were fabricated on Ti and steel substrates using different combinations of W milling balls. The coatings displayed heterogeneous nanocomposite structures, and the composition and microstructures could be tailored through the selection of milling balls. The hardness and wear resistance of the coatings were influenced by the W content and microstructure.
JOURNAL OF ALLOYS AND COMPOUNDS
(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.
Article
Polymer Science
Xiaobin Liang, Kohei Shiomi, Ken Nakajima
Summary: This study characterized the dynamic viscoelasticity of PNIPAM at different temperatures using a dynamic single-molecule force spectroscopy approach. The relationship between the viscoelasticity coefficient of single polymer chains and the number of chain segments below the LCST was found to be in accordance with the Kirkwood model. Above the LCST, the PNIPAM chains exhibited different viscoelastic behavior determined by their conformations. This research helps to understand the microscopic mechanism of PNIPAM's temperature response.
Article
Materials Science, Textiles
Ken Nakajima, Makiko Ito, Mari Hanai, Xiaobin Liang, Kaede Mogi
Article
Chemistry, Physical
M. H. Abbasi, R. Tavakoli, S. G. Shabestari
Summary: The correlation between atomic-scale structure and glass-forming ability of ternary bulk metallic glasses was investigated using molecular dynamics simulation. It was found that the potential energy of the icosahedra reflects the geometric ordering, while the virial stress energy density reveals the chemical ordering. Based on this discovery, a new prediction criterion for glass-forming ability was proposed and validated using experimental data.
Article
Chemistry, Physical
Haimin Zhai, Shuai Cui, Sheng Li, Dongqing He, Bo Cheng, Xinjian Zhang, Wensheng Li, Zhornik Viktor, Uladzimir Seniuts
Summary: Laser shock peening (LSP) treatment significantly affects the phase structure and properties of titanium-based BMG materials, promoting rejuvenation and introducing heterogeneity. This leads to improved plasticity and resistance to crack propagation. LSP-1 specimen exhibits higher hardness and plasticity, reducing fatigue peeling wear caused by brittleness. However, excessive LSP results in increased susceptibility to pitting and significantly reduces tribocorrosion resistance.
Article
Chemistry, Physical
Olga A. Blatova, Maria A. Solodovnikova, Ekaterina M. Egorova, Vladislav A. Blatov
Summary: This study applied a universal geometrical-topological approach to analyze the crystal structures of intermetallic compounds deposited in the Inorganic Crystal Structure Database. By exploring the local atomic configurations, they identified different types of coordination polyhedra and proposed criteria for determining geometric instability. This research provides useful indicators for checking crystallographic information and validating structural models.
Article
Chemistry, Physical
Jose M. Torralba, Diego Iriarte, Damien Tourret, Alberto Meza
Summary: The amount of globally recycled e-waste is less than 20% of the total produced. One of the causes for this low recycling rate is the complex and expensive selective sorting of metals. However, recent research has shown that high entropy alloys (HEAs) can be made from complex alloy mixtures, reducing the dependence on pure critical metals. It has been demonstrated that e-waste can be used to produce competitive HEAs.
Article
Chemistry, Physical
M. Y. He, Y. F. Shen, N. Jia, W. Y. Xue, J. P. Li
Summary: This study successfully improved the mechanical properties of high-entropy alloys (HEAs) through phase decomposition modulation, achieving strengthening of low-cost CuFeMnNi HEAs. The annealed HEAs exhibited excellent mechanical properties, with significantly increased yield strength and maintained satisfactory elongation.
Article
Chemistry, Physical
D. V. Louzguine-Luzgin, F. R. Pratama
Summary: In this study, the growth rate of a crystalline phase in the Al-Fe-Mn-Si metallic glass was measured in real time using transmission electron microscopy. The effective diffusion coefficient related to the slowest diffusing element (Mn) was estimated. The results showed that the growth rate of the crystalline phase was significantly faster compared to pure Al and AlFe compound.
Article
Chemistry, Physical
Zhenhua Han, Yubo Tian, Jun Yang, Jianzhao Li, Jinyang Zhang, Gang Liu, Ran Wei, Guojun Zhang
Summary: In this study, a novel medium-entropy alloy (MEA) (Fe65Ni15Cr10Co10)92Ti5Al3 with a dual heterogeneous structure was developed by adding Ti and Al to a previously reported Fe65Ni15Co10Cr10 MEA. The MEA exhibited ultra-high ultimate tensile strength and work hardening extent at room temperature. The addition of Ti and Al induced precipitation and resulted in a continuous FCC -> BCC martensitic transformation and a transformation-induced plasticity effect. The excellent mechanical properties of the alloy were attributed to the synergistic effects of hetero-deformation induced strengthening, precipitation strengthening, and TRIP.
Article
Chemistry, Physical
S. Y. Liang, L. T. Zhang, B. Wang, Y. J. Wang, E. Pineda, J. C. Qiao
Summary: This study focuses on the influence of the thermomechanical protocol on the aging or rejuvenation of glass by decoupling the thermal and mechanical processes. The results show that Labased metallic glass exhibits material hypomnesia, with a clearer rejuvenation trend observed after imposing increasing amplitude strain oscillations. There is a threshold value of the oscillation amplitude that separates the effects of the protocol into acceleration of aging or rejuvenation. This study reveals the correlation between the thermomechanical properties of metallic glass and the previous application of strain oscillations of various amplitudes, providing an effective tool for regulating the structural state of metallic glasses through a simple-operated method.
Article
Chemistry, Physical
Chihui Liu, Hua Zhang, Qing Wang, Panzhi Wang, Jiadian Yang, Fanchao Meng, Xin Zhou, Lilong Zhu, Shangzhou Zhang, Liang Jiang
Summary: Thermal deformation behavior and microstructure evolution of GH141 alloy were efficiently studied using high-throughput double-cone gradient compression. Different compression temperatures resulted in a wide gradient equivalent strain distribution and gradient microstructure. The dynamic recrystallization mechanism shifted towards discontinuous dynamic recrystallization with increasing compression temperature.
Article
Chemistry, Physical
D. Dubaux, J. Zollinger, M. -C. de Weerd, J. Ghanbaja, S. Mathieu, S. Migot, P. Boulet, S. Sturm, V. Fournee, M. Sicot, J. Ledieu
Summary: We report the formation of large and highly twinned dendrites of the Al13Fe4 approximant phase embedded in an fcc Al-rich matrix. Using a rapid cooling technique, the approximant appears as a 10-fold dendrite. The grain distributions within the arm are complex and a single dendrite arm can contain up to four different orientations. Three types of twins, namely {100}, {001} and {201} twins, have been identified. A growth mechanism involving heteroepitaxial growth from a decagonal Al-Fe quasicrystalline seed is proposed to explain the formation of these specific 10-fold motifs.
Article
Chemistry, Physical
Ming Yang, Yibo Zhang, Jie Dong, Yan Huang, Zhichao Lu, Liang Wang, Xuerui Wei, Zhengdong Fu, Jinkui Zhao, Wenli Song, Wei Li, Yuntao Liu, Dong Ma
Summary: A multi-element microalloying strategy has been used to improve the microstructure and mechanical properties of CuZr-based bulk metallic glass composites. Microalloying effectively refines the CuZr phase and results in finely dispersed B2 crystallites embedded in the BMG matrix, leading to the formation of centimeter-sized BMGCs with good mechanical properties.
Article
Chemistry, Physical
Xuejie Zhu, Xuexi Zhang, Mingfang Qian, Ziyi Wang, Aibin Li, Zongning Chen, Muhammad Imran, Lin Geng
Summary: The homogeneous superelastic behavior in shape memory alloys (SMAs) is crucial for their functional and structural fatigue properties, as well as their stable elastocaloric effect (eCE). In this study, a Ti-22Nb-4Zr-2Ta plate was prepared with a strong recrystallized texture, resulting in a completely recoverable superelastic strain and narrow hysteresis. The observation of strain and temperature evolution revealed the importance of diffuse transformation and favorable texture in achieving mesoscopically homogeneous transformation and related elastocaloric effect.
Article
Chemistry, Physical
Mohammad Navazani, Sitarama Raju Kada, Daniel Fabijanic, Matthew Barnett
Summary: This study investigates the effect of Cu and Al addition on an alloy containing multiple principal elements. The results show that adding small amounts of Cu can improve the alloy's ductility and the hardness of the FCC phase can be predicted using a hybrid model. Unlike previous studies, the corrosion resistance of the alloy is not affected by Cu addition, indicating its potential for further development into a fine-grained stainless steel alloy.
Article
Chemistry, Physical
Fatemeh Azizian, Homam Naffakh-Moosavy, Fatemeh Bagheri
Summary: Novel biodegradable Zn-xCu-0.8Mn-0.4Ag alloys were prepared in this study, and the effects of Cu addition and hot extrusion process on microstructure, mechanical properties, and cytotoxicity of the alloys were investigated. The results showed that adding copper and performing a hot extrusion process can significantly improve the mechanical properties of the alloys, making them potential candidates for cardiovascular stents.
Article
Chemistry, Physical
Ivan A. Ditenberg, Denis A. Osipov, Ivan Smirnov, Konstantin V. Grinyaev
Summary: This study investigates the effect of high-temperature annealing on the structural-phase state and microhardness of Ni3Al samples obtained by spark plasma sintering after high-energy ball milling. The results show that certain annealing temperatures promote grain growth and high-density nucleation, leading to the formation of a fine-grained structural state. The study also analyzes the influence of annealing temperature on the strengthening mechanisms.
