Article
Multidisciplinary Sciences
Valerio Di Lisio, Isabella Gallino, Sascha Sebastian Riegler, Maximilian Frey, Nico Neuber, Golden Kumar, Jan Schroers, Ralf Busch, Daniele Cangialosi
Summary: The glass transition temperature of metallic glasses can be depressed by up to 40 K by reducing the sample size to below 10 & mu;m, allowing the attainment of glasses with low energy states. The properties of bulk metallic glasses are profoundly affected by reducing the sample size. By systematically reducing the length scale of gold and platinum-based metallic glasses, the vitrification behavior and atomic mobility were studied, revealing size-dependent vitrification kinetics in micrometer-sized glasses.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
D. Sopu, X. Yuan, F. Moitzi, F. Spieckermann, X. Bian, J. Eckert
Summary: Shear transformation zones (STZs) are crucial for explaining plastic flow in metallic glasses, but their morphological and dynamical characteristics are not fully understood. Through simulations, it has been found that STZ activation occurs from the early stage of elastic deformation to the final shearing stage. STZs in the elastic and plastic ranges share similar characteristics but differ in magnitude and dynamics.
APPLIED MATERIALS TODAY
(2021)
Article
Materials Science, Multidisciplinary
S. J. Wu, Z. Q. Liu, R. T. Qu, Z. F. Zhang
Summary: By establishing quantitative correlations among compositions, elastic constants, GFA, and mechanical properties of metallic glasses (MGs), it is possible to predict their performance in advance. Experimental data confirms the validity of this predictive approach. A strategy for designing MGs with optimal combinations of strength, toughness, and GFA is proposed to allow for high-throughput discovery of glass formers with excellent mechanical properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Anh-Son Tran, Dinh-Quan Doan, Van-Tuan Chu
Summary: The mechanical properties and elastic recovery of CuAgAu metallic glasses were evaluated through molecular dynamics simulations during the nanoimprinting process. The influences of various factors such as cooling rate, stamp velocity, temperature, and percentage of Cu-Ag-Au elements were considered. The study demonstrated that changing the imprint conditions significantly affected important mechanical factors, including imprint force, shear strain, shear transformation zones, fraction of atoms with high shear strain, and elastic recovery ratio, which were deeply discussed.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
A. S. Makarov, R. A. Konchakov, J. C. Qiao, A. N. Vasiliev, N. P. Kobelev, V. A. Khonik
Summary: This study investigates the relationship between defect concentration and the structure factor of glasses based on shear modulus measurements and molecular dynamics simulation. The results show that defect-induced disordering is independent of glass thermal prehistory above the glass transition temperature, while significant differences exist between initial and relaxed samples below the transition temperature.
Article
Chemistry, Physical
Jaskaran Singh Saini, John P. Miska, Fuqiong Lei, Nicholas AuYeung, Donghua Xu
Summary: Metallic glasses, especially Hafnium based MGs, have superior properties to conventional crystalline metals/alloys, with HBMGs having the additional advantage of high density. However, their glass-forming ability is limited. Our discovery of two HBMGs with a critical casting diameter significantly higher than the current record allows for the production of bigger products and easier manufacturing/processing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Y. J. Duan, J. C. Qiao, T. Wada, H. Kato, Y. J. Wang, E. Pineda, D. Crespo
Summary: Dynamic mechanical analysis was performed on two metallic glasses with distinct beta relaxation features. The presence of free-volume zones and inelastic deformation behavior led to significant mechanical hysteresis loops in dynamic cyclic loadings, which can be described using a viscoelastic model. Annealing below the glass transition temperature reduced the concentration of free-volume zones, providing insights into improving the mechanical properties of high entropy metallic glasses.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
S. Sohrabi, R. Gholamipour
Summary: The addition of a small amount of niobium has a significant effect on the glass transition kinetics and fragility of Zr55Cu30Al10Ni5 metallic glasses. It narrows the width of glass transition, accelerates the relaxation process, and decreases the energy barrier of glass transition, resulting in a lower fragility and stronger glass performance.
Article
Materials Science, Multidisciplinary
Yong Hak Kim, Ka Ram Lim, Dong-Won Lee, Yoon Suk Choi, Young Sang Na
Summary: The study suggests that the density of flow units in metallic glass is mainly affected by the final cooling rate rather than the quenching temperature.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Wei-Hui Lin, Chong-Min She, Chun-Yu Zhang, Paulo S. Branicio, Zhen - Dong Sha
Summary: The mechanical properties of cellular metallic glasses are influenced by the shape of their cellular structures. Random structures with uniform porosity show higher yield strength and Young's modulus compared to microlattice structures. The chiral structure displays the highest Young's modulus, while stochastic cellular structures exhibit higher energy absorption capacity.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Ziqing Zhou, Yinghui Shang, Xiaodi Liu, Yong Yang
Summary: Researchers have developed a generative deep learning framework to directly generate compositionally complex bulk metallic glasses (BMGs), such as high entropy BMGs. The framework is capable of producing composition-property mappings, which paves the way for the inverse design of BMGs.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Materials Science, Ceramics
G. Afonin, J. C. Qiao, A. S. Aronin, N. P. Kobelev, V. A. Khonik
Summary: In this study, the effect of uniaxial compression on ultrasonic resonant vibrations in a metallic glass was investigated. The 3rd- and 4th-order elastic moduli were determined and previous calculations of sound propagation parameters were corrected. The obtained data were discussed in relation to theoretical predictions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
A. S. Makarov, G. V. Afonin, R. A. Konchakov, V. A. Khonik, J. C. Qiao, A. N. Vasiliev, N. P. Kobelev
Summary: By introducing a dimensionless order parameter 4, the structural order of glass can be estimated, and this parameter shows a strong correlation with the glass-forming ability.
SCRIPTA MATERIALIA
(2024)
Article
Chemistry, Physical
Ruizhi Qiu, Jun Tang, Jinfan Chen, Bingyun Ao
Summary: The effect of atomic hydrogen adsorption on AnO(2) surfaces varies depending on the type of material, with surface metallicity induced in ThO2 but strongly suppressed in UO2 and PuO2 due to electronic correlation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Review
Chemistry, Physical
Yu Chen, Zheng-Wei Dai, Jian-Zhong Jiang
Summary: Metallic glasses and high entropy alloys have shown remarkable features but also have issues. Recent efforts have been made to address these problems by introducing new concepts and mechanisms. High entropy metallic glasses, combining the advantages of both, have become a research focus.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Condensed Matter
A. S. Makarov, G. Afonin, A. S. Aronin, N. P. Kobelev, V. A. Khonik
Summary: A novel approach is presented in this paper to understand the heat effects caused by structural relaxation of metallic glasses. By applying a general thermodynamic equation, the entropy change in glass relaxation can be determined, and the kinetics of the heat effects controlled by defect-induced structural relaxation can be calculated. The experimental results show a good agreement with the calculated results.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Physics, Applied
Mark Stringe, Harald Roesner, Gerhard Wilde
Summary: By performing heat treatments on Pd40Ni40P20 metallic glass samples, the structure can be reset, the volume fraction of medium-range order can be reduced, and the strain can be increased.
JOURNAL OF APPLIED PHYSICS
(2022)
Correction
Multidisciplinary Sciences
Shangshu Wu, Zongde Kou, Qingquan Lai, Si Lan, Shyam Swaroop Katnagallu, Horst Hahn, Shabnam Taheriniya, Gerhard Wilde, Herbert Gleiter, Tao Feng
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Shangshu Wu, Zongde Kou, Qingquan Lai, Si Lan, Shyam Swaroop Katnagallu, Horst Hahn, Shabnam Taheriniya, Gerhard Wilde, Herbert Gleiter, Tao Feng
Summary: This study demonstrates a new approach to strengthen nanograined metals by triggering structural transformations at grain boundaries, leading to dislocation exhaustion and ultra-hardening. Tailoring phase transformations via grain boundary physico-chemical engineering provides a pathway to explore nanomaterials with desired properties.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
B. Bian, S. Taheriniya, G. Mohan Muralikrishna, A. Godha, S. K. Makineni, S. Sankaran, B. B. Straumal, Y. Du, G. Wilde, S. V. Divinski
Summary: Kinetic and structural changes induced by Bi alloying in dilute Ni-Bi alloys were investigated, focusing on grain boundary phase transitions. The grain boundary diffusion of Ni in the Ni-Bi alloys was measured across single and two-phase regions of the bulk phase diagram. The results showed that the Ni grain boundary diffusion rates were dependent on the Bi concentration and were influenced by Bi segregation and multi-layer Bi segregation along the grain boundaries. The presence of a liquid layer of Bi at the grain boundaries resulted in the highest Ni diffusivity. Additionally, structural transitions between different grain boundary phases were found to have a significant impact on the grain boundary diffusion rates.
Article
Materials Science, Multidisciplinary
Andrei Makarov, Marina Kretova, Gennadii Afonin, Nikolai Kobelev, Vitaly Khonik
Summary: This study conducted high-precision measurements of the temperature dependences of the shear modulus G in bulk metallic glass. It found that plastic deformation significantly affects the anharmonic, electronic, and relaxation components of G, with the relaxation contribution increasing, anharmonic component increasing, and electronic component decreasing.
Article
Materials Science, Multidisciplinary
Tim Bernges, Martin Peterlechner, Gerhard Wilde, Matthias T. Agne, Wolfgang G. Zeier
Summary: The reduction of vibrational contributions to thermal transport and the search for materials with low lattice thermal conductivities are crucial in thermoelectric research. Spectral analytical models have been proven effective in understanding the physics of low thermal conduction, but another mechanism called diffusons has been discovered in complex crystalline materials. This work proposes an analytical 2-channel transport model that explains the thermal conductivities of the solid solution series Ag9-xGa1-xGexSe6 and provides materials design metrics for 2-channel thermal transport.
MATERIALS TODAY PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Qingmei Gong, Haihong Jiang, Jacques Perrin-Toinin, Martin Peterlechner, Magali Putero, Alain Portavoce, Sergiy Divinski, Gerhard Wilde
Summary: In this study, the self-diffusion coefficients of tellurium in amorphous Ge2Sb2Te5 were experimentally measured for the first time, and the activation energy for tellurium self-diffusion was determined to be (1.43±0.08) eV.
Article
Physics, Multidisciplinary
A. S. Makarov
Summary: In this study, a method is proposed to calculate the thermal effects induced by heat treatment of high-entropy metallic glasses. The experimental verification shows that the proposed method can quantitatively describe the observed exothermic and endothermic effects during the glass transition and crystallization processes.
Article
Nanoscience & Nanotechnology
A. S. Makarov, G. V. Afonin, R. A. Konchakov, V. A. Khonik, J. C. Qiao, A. N. Vasiliev, N. P. Kobelev
Summary: By introducing a dimensionless order parameter 4, the structural order of glass can be estimated, and this parameter shows a strong correlation with the glass-forming ability.
SCRIPTA MATERIALIA
(2024)
Article
Materials Science, Multidisciplinary
Ruixuan Li, Baixue Bian, Gerhard Wilde, Yong Zhang, Sergiy V. Divinski
Summary: The tracer self-diffusion of Co in a compositionally complex AlCoCrFeNiTi0.2 alloy was measured using the radiotracer technique. The analysis of the complex multi-phase microstructure allowed for the determination of volume diffusion coefficients and grain boundary diffusion coefficients.
Article
Chemistry, Physical
A. S. Makarov, R. A. Konchakov, J. C. Qiao, A. N. Vasiliev, N. P. Kobelev, V. A. Khonik
Summary: This study investigates the relationship between defect concentration and the structure factor of glasses based on shear modulus measurements and molecular dynamics simulation. The results show that defect-induced disordering is independent of glass thermal prehistory above the glass transition temperature, while significant differences exist between initial and relaxed samples below the transition temperature.
Correction
Physics, Multidisciplinary
A. S. Makarov, M. A. Kretova, G. V. Afonin, J. C. Qiao, A. M. Glezer, N. P. Kobelev, V. A. Khonik
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.
