Article
Chemistry, Physical
M. A. Yousfi, H. Zbidi, K. Hajlaoui, N. H. Alrasheedi, A. M. Jorge Junior
Summary: The variation of free volume (Delta Vf) of hydrogenated Zr57Al10Cu15.4Ni12.6Nb5 metallic glasses ribbon was investigated using nanoindentation tests and differential scanning calorimetry (DSC). The results show that the free volume gradually increases with the charging time of hydrogen, leading to a softening of the metallic glasses for an appropriate hydrogen content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xiangkui Liu, Jian Kong, Xinxiang Song, Shuai Feng, Zibo Zhang, Yang Yang, Tianchi Wang
Summary: The total free volume, consisting of intrinsic and excess free volume, plays a crucial role in determining the plasticity of metallic glasses. Metallic glasses with Zr content ranging from 30 to 45 at% exhibit enhanced plasticity due to their larger content of total free volume.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
X. D. Wang, S. L. Song, Z. W. Zhu, H. F. Zhang, X. C. Ren
Summary: The fatigue performance and mechanism of metallic glasses are significantly influenced by the sampling location, with specimens closer to the surface exhibiting higher fatigue endurance limit and fatigue life. Free volume, shear bands, and cyclic loading are key factors affecting the fatigue property of metallic glasses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
R. T. Zhu, J. L. Yuan, Z. Wang, X. H. Shi, H. J. Yang, J. W. Qiao
Summary: A Ti-based metallic glass matrix composite demonstrates remarkable mechanical performance with different deformation mechanisms at room and cryogenic temperatures, providing guidance for enhancing the performance of MGMCs.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Kuo Li, Zhiming Jiao, Zhiqiang Li, Zhihua Wang
Summary: The in-situ Ti-based metallic glass matrix composite Ti43Zr32Ni6Ta5Be14 exhibits strain hardening and plastic flow during dynamic compression, attributed to the competition between dislocation mechanisms and softening mechanisms within the glass matrix. The plasticity of the composite is analyzed semi-quantitatively based on the difference in shear band toughness. Furthermore, the study characterizes the strain-rate effect on yield strength using various models including Zerilli and Armstrong model, cooperative shear model, and modified CSM model.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Vasily Astanin, Dmitry Gunderov, Vyacheslav Titov, Rashid Asfandiyarov
Summary: This study investigates the structural features, microhardness distribution, and deformation features of Vit105 bulk metallic glass (BMG) before and after high-pressure torsion (HPT) and after relaxing annealing. The research finds that HPT increases the free volume (Delta V), while relaxing annealing decreases Delta V and increases non-uniformity relative to the initial state of BMG. The microhardness distribution is uniform in the initial BMG and BMG after relaxing annealing, but more heterogeneous in the material subjected to HPT. Bonded-interface indentation of the BMG shows the formation of concentric bands around the indenter, with more homogeneous band distribution in the Vit105 BMG alloy before HPT. In the relaxed samples, the bands often have fractures, irregularities, and visible cracks. After HPT, several intensity bands and low-intensity bands can be observed. The average distance between the bands is similar between the initial BMG and BMG after HPT, but smaller in the relaxed state, indicating lower plasticity after annealing.
Article
Materials Science, Multidisciplinary
Songyi Chen, Dazhe Xu, Xin Zhang, Xiehang Chen, Ye Liu, Tao Liang, Ziliang Yin, Sheng Jiang, Ke Yang, Jianrong Zeng, Hongbo Lou, Zhidan Zeng, Qiaoshi Zeng
Summary: Free volume is a key concept to describe various glass phenomena, but it is challenging to define and determine experimentally in glass structures. In this study, metallic glass is used as a model system to investigate the structural evolution of metallic glass with different amounts of free volume. The results show that free volume affects the compression behavior of metallic glasses, with higher amounts of free volume leading to lower density and bulk modulus. The compression process of metallic glasses under pressure is found to be elastic. These findings have implications for the structural models based on the concept of free volume.
Article
Materials Science, Ceramics
Zhi Qiang Ren, Yu Wei Liu, Ying Liu, Jing Tao Wang
Summary: In this paper, a theoretical formulation for shear transformation zone (STZ) volume, shear band density, and plasticity is presented. The temperature dependence of these parameters is discussed. The experimental data of plasticity for Vit105 bulk metallic glass show negative temperature dependence, which is consistent with the prediction of the analytical formulation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Physics, Multidisciplinary
Tong Lu, Song Ling Liu, Yong Hao Sun, Wei-Hua Wang, Ming-Xiang Pan
Summary: This article investigates the thermal expansion behavior of metallic glasses and finds that the coefficient of thermal expansion decreases linearly with increased densification. The study also discovers that the free volume in metallic glasses possesses not only volume but also gas-like thermal expansion properties.
CHINESE PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Peng Du, Bin Zhu, Xinxin Yang, Guoqiang Xie
Summary: Ti-Fe-Si amorphous alloy powder was developed for the first time using mechanical alloying, laying the foundation for bulk preparation, while also investigating key factors affecting the amorphous transition of samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Civil
Zi Gu, Wensheng Lu, Yuqing Gao
Summary: This paper investigates the issue of cumulative displacement on tension-only metallic yielding dissipators (TMYDs). Two potential risks caused by cumulative displacement are identified: the intruded length issue and the dissipative member strain issue. The paper proposes theoretical models and computational algorithms to consider cumulative displacement in three types of TMYD and presents finite element models for nonlinear time history analysis. The results show that cumulative displacement is important in designing the dissipators, and TMYDs may have the potential risk of failure during earthquakes, posing unpredictable danger to the structure.
ENGINEERING STRUCTURES
(2023)
Article
Physics, Fluids & Plasmas
Shiheng Cui, Huashan Liu, Hailong Peng
Summary: In this study, computer simulations were conducted to investigate the shear deformation of CuZr metallic glasses at different temperatures. The results reveal the emergence of shear bands at a specific strain point in athermal alloys, and the presence of a finite-size effect. The correlation of nonaffine displacement shows an exponential decay in thermal alloys even after yielding, whereas it transitions to a power law in athermal alloys at a certain strain point.
Article
Materials Science, Multidisciplinary
Eray Yuce, Florian Spieckermann, Atacan Asci, Stefan Wurster, Parthiban Ramasamy, Lixia Xi, Baran Sarac, Jurgen Eckert
Summary: We present four new biocompatible toxic element-free Ti-based metallic glass compositions with varying precious metal contents, which improve both glass-forming ability and corrosion properties. The alloys are completely free from cytotoxic elements like Cu, Ni, or Be, but still show unprecedented corrosion resistance in simulated body fluids, making them potential materials for dental implants. Their GFA and corrosion resistance are investigated by various methods, and the Ti60Zr15Si10B5Pd5Pt5 alloy exhibits promising GFA and outstanding corrosion resistance in a simulated body fluid at 310 K.
MATERIALS TODAY ADVANCES
(2023)
Article
Construction & Building Technology
Gaowa Xu, Jinping Ou
Summary: This article presents the features of designing combined rotational friction and flexural yielding metallic dampers, which could be used in prefabricated structures. Experimental results show that the proposed FD-MD connection possesses excellent comprehensive performance of friction and plastic energy-dissipating ability, making it a viable alternative for precast structures in high seismic regions.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
D. X. Han, G. Wang, Q. Wang, R. Feng, X. D. Ma, K. C. Chan, C. T. Liu
Summary: Shear-banding behavior in metallic glasses, which is associated with yield strength, is influenced by many factors at a micro-scale. In this study, a plastic-strength model was developed considering machine compliance, micro-pillar geometry imperfection, and substrate sink-in. The model was supported by the compressive properties of 18 metallic glasses and provides guidance for elastic limits and shear-banding dynamics at the micro-scale in characterizing deformation behavior of amorphous materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
X. D. Xu, P. Liu, Z. Tang, A. Hirata, S. X. Song, T. G. Nieh, P. K. Liaw, C. T. Liu, M. W. Chen
Article
Materials Science, Multidisciplinary
Xiaodong Wang, Wandong Wang, Kolan Madhav Reddy, Wei Zhou, Pan Liu, Bin Chen, Yangyang Zhao, Shuangxi Song
MATERIALS CHARACTERIZATION
(2018)
Article
Multidisciplinary Sciences
Fan Zhu, Shuangxi Song, Kolan Madhav Reddy, Akihiko Hirata, Mingwei Chen
NATURE COMMUNICATIONS
(2018)
Article
Chemistry, Physical
M. T. Tsai, J. C. Huang, P. H. Lin, T. Y. Liu, Y. C. Liao, Jason S. C. Jang, S. X. Song, T. G. Nieh
Article
Physics, Multidisciplinary
Dezhou Guo, Shuangxi Song, Ruichun Luo, William A. Goddard, Mingwei Chen, Kolan Madhav Reddy, Qi An
PHYSICAL REVIEW LETTERS
(2018)
Article
Materials Science, Multidisciplinary
Pan Liu, Xiao Wei, Shuangxi Song, Lihua Wang, Akihiko Hirata, Takeshi Fujita, Xiaodong Han, Ze Zhang, Mingwei Chen
Article
Nanoscience & Nanotechnology
Xiaodong Wang, Wei Zhou, Pan Liu, Shuangxi Song, Kolan Madhav Reddy
SCRIPTA MATERIALIA
(2019)
Article
Materials Science, Multidisciplinary
Wandong Wang, Shuangxi Song, Kolan Madhav Reddy, Wei Li, Pan Liu, Xiaodong Wang
Article
Multidisciplinary Sciences
Yuan Tian, Wei Jiao, Pan Liu, Shuangxi Song, Zhen Lu, Akihiko Hirata, Mingwei Chen
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Physical
Wandong Wang, Wei Zhou, Shuangxi Song, Kolan Madhav Reddy, Xiaodong Wang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Hongwei Wang, Shuangxi Song, Xinshu Zou, Fangxi Wang, Zhifu Zhang, Sergey Morozov, Xiaodong Wang, Kolan Madhav Reddy, Qi An
Article
Chemistry, Multidisciplinary
Pan Liu, Lihua Wang, Yonghai Yue, Shuangxi Song, Xiaodong Wang, Kolan Madhav Reddy, Xiaozhou Liao, Ze Zhang, Mingwei Chen, Xiaodong Han
Article
Chemistry, Multidisciplinary
Ruichun Luo, Min Luo, Ziqian Wang, Pan Liu, Shuangxi Song, Xiaodong Wang, Mingwei Chen
Article
Materials Science, Multidisciplinary
X. D. Xu, P. Liu, A. Hirata, S. X. Song, T. G. Nieh, M. W. Chen
Article
Materials Science, Multidisciplinary
D. X. Han, G. Wang, J. L. Ren, L. P. Yu, J. Yi, I. Hussain, S. X. Song, H. Xu, K. C. Chan, P. K. Liaw
Article
Nanoscience & Nanotechnology
Jie Zhang, Xiaoyang Chen, MingJian Ding, Jiaqiang Chen, Ping Yu
Summary: This study enhances the compositional inhomogeneity of relaxor ferroelectric thin films to improve their dielectric temperature stability. The prepared films exhibit a relatively high dielectric constant and a very low variation ratio of dielectric constant over a wide temperature range.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xiaoyu Chen, Ranran Zhang, Hao Zou, Ling Li, Qiancheng Zhu, Wenming Zhang
Summary: Polyaniline-manganese dioxide composites exhibit high conductivity, long discharge platform, and stable circulation, and the specific capacity is increased by providing additional H+ ions to participate in the reaction.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xutao Huang, Yinping Chen, Jianjun Wang, Gang Lu, Wenxin Wang, Zan Yao, Sixin Zhao, Yujie Liu, Qian Li
Summary: This study aims to establish a novel approach to better understand and predict the behavior of materials with multi-scale lamellar microstructures. High-resolution reconstruction and collaborative characterization methods are used to accurately represent the microstructure. The mechanical properties of pearlite are investigated using crystal plasticity simulation and in-situ scanning electron microscopy tensile testing. The results validate the reliability of the novel strategy.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Cheng Chen, Fanchao Meng, Jun Song
Summary: This study systematically investigated the unfaulting mechanism of single-layer interstitial dislocation loops in irradiated L12-Ni3Al. The unfaulting routes of the loops were uncovered and the symmetry breaking during the unfaulting processes was further elucidated. A continuum model was formulated to analyze the energetics of the loops and predict the unfaulting threshold.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Darshan Bamney, Laurent Capolungo
Summary: This work investigates the formation of adjoining twin pairs (ATPs) at grain boundaries (GBs) in hexagonal close-packed (hcp) metals, focusing on the co-nucleation (CN) of pairs of deformation twins. A continuum defect mechanics model is proposed to study the energetic feasibility of CN of ATPs resulting from GB dislocation dissociation. The model reveals that CN is preferred over the nucleation of a single twin variant for low misorientation angle GBs. Further analysis considering GB character and twin system alignment suggests that CN events could be responsible for ATP formation even at low m' values.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Bing Han, Zhengqian Fu, Guoxiang Zhao, Xuefeng Chen, Genshui Wang, Fangfang Xu
Summary: This study investigates the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition and reveals the evolution of atomic displacement ordering as the cause for the transition behavior changing from sharp to diffuse. The novel semi-ordered configuration results from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which leads to a diffuse AFE-FE transition while maintaining the switching field.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Akib Jabed, Golden Kumar
Summary: This study demonstrates that cryogenic rejuvenation promotes homogeneous-like flow and increases ductility in metallic glass samples. Conversely, annealing has the opposite effect, resulting in a smoother fracture surface.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xin Ji, Yan Chong, Satoshi Emura, Koichi Tsuchiya
Summary: A heterogeneous microstructure in Ti-15Mo-3Al alloy with heterogeneous distributions of Mo element and omega(iso) precipitates has achieved a four-fold increase in tensile ductility without a loss of tensile strength, by blocking the propagation of dislocation channels and preventing the formation of micro-cracks.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Amit Samanta, Prasanna Balaprakash, Sylvie Aubry, Brian K. Lin
Summary: This study proposes a combined large-scale first principles approach with machine learning and materials informatics to quickly explore the chemistry-composition space of advanced high strength steels (AHSS). The distribution of aluminum and manganese atoms in iron is systematically explored using first principles calculations to investigate low stacking fault energy configurations. The use of an automated machine learning tool, DeepHyper, speeds up the computational process. The study provides insights into the distribution of aluminum and manganese atoms in systems containing stacking faults and their effects on the equilibrium distribution.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Guowei Zhou, Yuanzhe Hu, Zizheng Cao, Myoung Gyu Lee, Dayong Li
Summary: In this work, a physics-constrained neural network is used to predict grain-level responses in FCC material by incorporating crystal plasticity theory. The key feature, shear strain rate of slip system, is identified based on crystal plasticity and incorporated into the loss function as physical constitutive equations. The introduction of physics constraints accelerates the convergence of the neural network model and improves prediction accuracy, especially for small-scale datasets. Transfer learning is performed to capture complex in-plane deformation of crystals with any initial orientations, including cyclic loading and arbitrary non-monotonic loading.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Pengfei Yang, Qichang Li, Zhongying Wang, Yuxiao Gao, Wei Jin, Weiping Xiao, Lei Wang, Fusheng Liu, Zexing Wu
Summary: In this study, the HER performance of Ru-based catalysts is significantly improved through the dual-doping strategy. The obtained catalyst exhibits excellent performance in alkaline freshwater and alkaline seawater, and can be stably operated in a self-assembled overall water splitting electrolyzer.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ilias Bikmukhametov, Garritt J. Tucker, Gregory B. Thompson
Summary: Depositing a Ni-1at. % P film can facilitate the formation of multiple quintuple twin junctions, resulting in a five-fold twin structure and a pentagonal pyramid surface topology. The ability to control material structures offers opportunities for creating novel surface topologies, which can be used as arrays of field emitters or textured surfaces.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Zening Yang, Weiwei Sun, Zhengyu Sun, Mutian Zhang, Jin Yu, Yubin Wen
Summary: Multicomponent oxides (MCOs) have wide applications and accurately predicting their thermal expansion remains challenging. This study introduces an innovative attention-based deep learning model, which achieves improved performance by using two self-attention modules and demonstrates adaptability and interpretability.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ze Liu, Cai Chen, Yuanxun Zhou, Lanting Zhang, Hong Wang
Summary: This study attempts to address the gap in cooling rates between thin film deposition and bulk metallic glass (BMG) casting by correlating the glass-forming range (GFR) determined from combinatorial materials chips (CMCs) with the glass-forming ability (GFA) of BMG. The results show that the full-width at half maximum (FWHM) of the first sharp diffraction peak (FSDP) is a good indicator of BMG GFA, and strong positive correlations between FWHM and the critical casting diameter (Dmax) are observed in various BMG systems. Furthermore, the Pearson correlation coefficients suggest possible similarities in the GFA natures of certain BMG pairs.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Mike Schneider, Jean-Philippe Couzinie, Amin Shalabi, Farhad Ibrahimkhel, Alberto Ferrari, Fritz Koermann, Guillaume Laplanche
Summary: This work aims to predict the microstructure of recrystallized medium and high-entropy alloys, particularly the density and thickness of annealing twins. Through experiments and simulations, a database is provided for twin boundary engineering in alloy development. The results also support existing theories and empirical relationships.
SCRIPTA MATERIALIA
(2024)
