Article
Nanoscience & Nanotechnology
Tianhao Liu, Limin Lai, Siming Xiao, Meifang Tang, Hongju Zhang, Shengfeng Guo
Summary: In this study, a new ternary system of Fe-W-B BMGs with ultrahigh thermal stabilities and hardness was successfully developed, showing promising applications in extreme service environment. The thermal properties and simple chemical components of Fe-W-B BMGs make them model materials for understanding the glass formation mechanism of Fe-based BMGs.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Physics, Applied
Chi-Fan Liu, Shih-Chen Shi, Ting-Ting Sun, Tao-Hsing Chen
Summary: This study investigated the effects of Nb addition on the glass formation ability, mechanical properties, and microstructural evolution of Fe-Y-B bulk metallic glass (BMG) alloys. The glass formation ability of the alloys with different Nb contents was evaluated using X-ray diffraction and differential scanning calorimetry. The mechanical properties of the various BMGs were tested under quasi-static strain rates and high strain rates, and the microstructures of the fracture surfaces were observed using scanning electron microscopy.
MODERN PHYSICS LETTERS B
(2023)
Article
Nanoscience & Nanotechnology
Mingcan Li, Huimin Guan, Sen Yang, Xu Ma, Qiang Li
Summary: A new strategy of minor substitution has been proposed to enhance the plasticity and yielding strength of ductile Fe-based bulk metallic glasses. The locally modified structure leads to improved resistance to shear band formation and propagation, resulting in significant improvement in both properties. One example is the development of (Fe1/3Co1/3Ni1/3)(77.5)Cr-2.5(P1/2B1/2) 20 high entropy bulk metallic glass, which shows substantial enhancement in plasticity and yielding strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Tao-Hsing Chen, Chi-Feng Lin, Jian-Yu Wang
Summary: In this study, the glass-forming ability, stress-strain relationships, and fracture characteristics of Zr60-xCu27Al8Fe5Nbx (x = 0, 1, 3 and 5 at%) bulk metallic glasses were investigated. The addition of Nb was found to increase the supercooled liquid region and parameter gamma of the BMGs. Fracture stress increased with increasing strain rate, while fracture strain decreased. The addition of 3 at% Nb resulted in the highest fracture stress and fracture strain.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jiacheng Ge, Yao Gu, Zhongzheng Yao, Sinan Liu, Huiqiang Ying, Chenyu Lu, Zhenduo Wu, Yang Ren, Jun-ichi Suzuki, Zhenhua Xie, Yubin Ke, Jianrong Zeng, He Zhu, Song Tang, Xun-Li Wang, Si Lan
Summary: Fe-based metallic glasses are promising materials in the fields of advanced magnetism and sensors. This study proposes a novel approach to tailor the amorphous structure through liquid-liquid phase transition, and provides insights into the correlation between structural disorder and magnetic order. The results show that the liquid-liquid phase transition can induce more locally ordered nanodomains, leading to stronger exchange interactions and increased saturation magnetization. The increased local heterogeneity also enhances magnetic anisotropy, resulting in a better stress-impedance effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Weihua Hu, Zejiang Yu, Yunzhuo Lu, Juntao Huo, Zuoxiang Qin, Xing Lu, R. Lakshmi Narayan
Summary: This study investigates the microstructures and mechanical properties of 50 wt% Nb-reinforced Zr-based bulk metallic glass composites (BMGCs) manufactured via laser directed energy deposition (LDED) with two different laser powers, and compares them with those of LDED manufactured monolithic bulk metallic glass (BMG). The results show that both BMGCs have a multi-component microstructure, while the monolithic BMG contains only one component. The nanocrystals at the melt-pool boundaries embrittle the monolithic BMG, resulting in higher yield strength but negligible plastic deformation. In contrast, both BMGCs exhibit significant plastic deformation due to the reinforcement of Nb, which improves plasticity and reduces the volume fraction of nanocrystallites at the melt-pool boundaries. The BMGC manufactured at higher laser power exhibits higher shear band plasticity, despite having higher volume fraction of nanocrystallites and lower enthalpy of relaxation. The load transfer characteristics of the Nb-BMG matrix interfaces in the two BMGCs are analyzed and rationalized.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ju Wang, Ivan Kaban, Volodymyr Levytskyi, Ran Li, Junhee Han, Mihai Stoica, Roman Gumeniuk, Kornelius Nielsch
Summary: Co-Ta-B bulk metallic glasses exhibit a good combination of ultra-high fracture strength, Vickers hardness, and plastic strain. The crystallization process reveals the formation of a novel crystalline phase upon glass annealing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Qingjie Li, Dandan Qin, Yunzhuo Lu, Xuemei Zhu, Xing Lu
Summary: Laser additive manufacturing (LAM) is a promising technology for processing bulk metallic glass (BMG), but the inherent brittleness of Fe-based BMGs has always been a problem. To solve this, 316L stainless steel is used to form Fe-based BMG composites (BMGCs), which greatly improves the plastic strain and achieves a record-breaking achievement.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Fei Sun, Shengtao Deng, Jianan Fu, Jiahua Zhu, Dandan Liang, Pengfei Wang, Hang Zhao, Feng Gong, Jiang Ma, Yanhui Liu, Jun Shen
Summary: In this study, an Ir-Ta-Ni-Nb bulk metallic glass (BMG) with outstanding high-temperature wear resistance was demonstrated and its potential applications in extreme environments were revealed. The wear behavior and mechanism were systematically investigated from room temperature to 750 degrees C. The results showed an improvement in wear resistance at a higher temperature of 750 degrees C, attributed to the formation of an oxide layer, which avoids violent wear of the BMG.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(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
Materials Science, Ceramics
Tuo Wang, Lianshun Zhang, Qiqi Hou, Qi Hao, Jichao Qiao
Summary: The plasticity of Fe75Mo5P13C7 BMG can be improved by annealing at low temperature due to nano-crystallization and remaining free volume. The correlation of plasticity with micro-structure, relaxation, and free volume characteristic varies in Fe75Mo5P13C7 BMG with its annealed state under different temperatures. The plasticity will be largest when the ratio of nanocrystals is equivalent to the free volume.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Yang Yang, Jian Kong, Kewei Dong, Xiangkui Liu, Qipeng Wang, Xinxiang Song, Shuai Feng
Summary: This study presented an electro pulsive joining method for bulk metallic glass and systematically studied the mechanism of the joining process. Three different join modes were identified: supercooled liquid phase joining, crystallization joining, and liquid phase joining. Joint's average strength was measured and the electro pulsive joining method was proven to be a universal way for connecting bulk metallic glass.
Article
Materials Science, Multidisciplinary
Guan Zhang, Wenlei Sun, Lei Xie, Chengwu Zhang, Jie Tan, Xuan Peng, Qiang Li, Xu Ma, Dongmei Zhao, Jiangtong Yu
Summary: In this study, new multicomponent Fe54M5Cr15Mo6Si2B4P10C4 bulk metallic glasses (BMGs) with excellent corrosion and wear resistances were synthesized. The Fe-59 BMG showed the highest corrosion resistance and the lowest wear rate, making it a promising candidate for wear-and corrosion-resistant coating materials.
Article
Chemistry, Physical
L. Zarazua-Villalobos, N. Mary, J. Soo-Hyun, K. Ogawa, H. Kato, Y. Ichikawa
Summary: This study focused on the development of bulk metallic glasses with better anti-corrosive properties. A metallic glass with Fe48Cr15Mo14C15B6Y2 composition was produced using high-pressure atomization spray and densified by Spark Plasma Sintering. The effects of different sintering cycles on material properties were studied, and amorphous samples with nearly 98% relative density were obtained.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hussein Kadhim Sharaf, Sadeq Salman, Marwah H. Abdulateef, Rustem R. Magizov, Vasilii Ivanovich Troitskii, Zaid Hameed Mahmoud, Rafis H. Mukhutdinov, Harsha Mohanty
Summary: The study investigates the impact of hydrogen microalloying on glassy alloys, considering the role of primary stored energy and structural heterogeneity. Results show that hydrogen microalloying improves the plasticity behavior of metallic glasses by reducing localized deformation and activating fast beta ' relaxation. The higher initial structural heterogeneity and stored energy in the specific bulk metallic glass composition led to enhanced microalloying effects.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Engineering, Multidisciplinary
Huang RuiRui, Zhang Qian, Zhang Xuan, Li JianGuo, Cao TangQing, Yao JiaHao, Xue YunFei, Gao HuaJian, Li XiaoYan
Summary: The study found that the mechanical properties of Al1.2CrFeCoNi micropillars exhibit temperature insensitivity to yield stress, while flow stress and work hardening rate increase slightly with temperature. On the other hand, Al0.3CrFeCoNi micropillars show typical thermal softening behavior. The differences in deformation modes and thermal responses between the two alloys are attributed to the differences in dislocation activities and slip systems due to their different phases.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Chemistry, Physical
Xiao-Yi Cuan, Yan Lin, Jie Pan, Dong-Ming Sun, Yi Li
Summary: The use of nacre-like structure in materials synthesis has yielded notable successes in creating novel structural composites, but few practical advances have been made in metals. In this study, a complex hierarchical microstructure, the brick-and-mortar structure, was successfully architected in metal/metal hybrids using lithographic method and electrodeposition technique, allowing accurate control of material composition and enhanced fracture toughness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Weihua Zhou, Yonghua Meng, Fenghui Duan, Wei Huang, Jiahao Yao, Jie Pan, Yinxiao Wang, Yi Li
Summary: The study found that the formation of the tau(3) phase (Zr50Cu29Ni2Al19 intermetallics) is triggered when the oxygen level reaches 350 ppm, with oxygen mainly concentrated in this phase. Additionally, the lattice parameter of the tau(3) phase increases with the oxygen content.
Article
Nanoscience & Nanotechnology
Wenfan Yang, Mingyu Gong, Jiahao Yao, Jiangwei Wang, Shijian Zheng, Xiuliang Ma
Summary: The study shows that introducing a disordered interface in Cu/Nb multilayers can significantly enhance their hardness by relaxing the Burgers vectors of dislocations. These findings are expected to provide new insights for the development of novel materials with ultrahigh hardness.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
Le Wang, Qunbo Fan, Xianping Wang, Jiahao Yao, Yu Zhou, Yi Peng, Hao Ma, Xinyu Shen, Banglei Zhao, Jiangang Ke
Summary: Charged FeCr based nanocrystalline films were produced with varying He/Ar ratios, affecting crystal structure, surface morphology, and distribution of He bubbles. Increasing He/Ar ratio led to decreased grain size and proportional density of He bubbles, while bubble size remained largely unaffected.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Physical
Kai Chen, Qunbo Fan, Jiahao Yao, Lin Yang, Shun Xu, Yu Gao, Wei Lei
Summary: This study investigates the stress-induced alpha phase transformation in Ti-5Al-2.5Cr-5Mo-1Sn alloy by adjusting the heat treatment process. The results show that the stress-induced alpha phase exhibits a higher degree of plastic deformation compared to the beta matrix and demonstrates a strong strain partitioning effect during the stretching process, improving the material's ductility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Kai Chen, Qunbo Fan, Jiahao Yao, Lin Yang, Shun Xu, Wei Lei, Duoduo Wang, Jingjiu Yuan, Haichao Gong, Xingwang Cheng
Summary: This study innovatively manufactured a novel titanium alloy by introducing a stress-induced strengthening phase, which exhibited an extremely high strain hardening rate and high tensile strength. The intrinsic mechanisms underlying the simultaneous improvement of strength and ductility were revealed through in-situ and ex-situ characterizations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jianjun Li, Feng Qin, Dingshun Yan, Wenjun Lu, Jiahao Yao
Summary: This study investigates the shear instability of a newly designed heterogeneous nanolayered Cu/Zr composites through microindentation. The results show that strain delocalization can be achieved by using an appropriate number of thin bilayers as interlayers, leading to improved strength and resistance to strain localization in the composite material.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yu Gao, Lin Yang, Qunbo Fan, Wei Lei, Kai Chen, Xinjie Zhu, Xiaonan Mu, Jiahao Yao
Summary: A high-throughput diffusion couple with Fe content gradient was prepared by taking advantage of the strong diffusion ability of liquid metal iron. The influence of Fe content variation on the microstructure and hardness of the diffusion couple was investigated.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Kai Chen, Qunbo Fan, Lin Yang, Shun Xu, Jiahao Yao, Yu Gao, Wei Lei
Summary: A novel metastable beta-type Ti-6Mo-3.5Cr-1Zr alloy is designed using d-electrons theory to introduce diverse phase transformations. Stress-induced omega (SI omega) phase transformation dominates the initial deformation, while the SI omega bands are transformed to alpha+beta phase as the strain increases. The sequential mechanism associated with beta -> SI omega ->alpha+beta is first reported in titanium alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Kai Chen, Qunbo Fan, Shun Xu, Jiahao Yao, Lin Yang, Jingjiu Yuan, Haichao Gong, Hongmei Zhang, Xingwang Cheng
Summary: To achieve a balance between strength and ductility in a novel titanium alloy Ti-6Mo-3.5Cr-1Zr, the transition of microstructure from stress-induced beta to omega phase was intentionally retarded by designing an alpha-beta hybrid structure. Through microstructure optimization, the titanium alloy exhibited outstanding quasi-static tensile properties, with a yield strength of approximately 825 MPa, true tensile strength of approximately 1171 MPa, and total elongation of approximately 29.7%.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Y. H. Meng, S. Y. Zhang, W. H. Zhou, J. H. Yao, S. N. Liu, S. Lan, Y. Li
Summary: Structural relaxation and subsequent rejuvenation through thermal treatment can improve the plasticity and fracture toughness of metallic glasses. The recovery of loosely packed regions in the atomic structure during annealing contributes to the observed rejuvenation. Tailoring the mechanical properties of metallic glasses can be achieved by controlling the annealing and thermal treatment conditions.
Article
Nanoscience & Nanotechnology
S. Y. Zhang, W. H. Zhou, L. J. Song, J. T. Huo, J. H. Yao, J. Q. Wang, Y. Li
Summary: The mechanical properties of amorphous materials are closely related to their energy states. A higher energy state corresponds to larger plasticity and lower hardness. In this study, the correlation between the enthalpy and hardness of rejuvenated Au-based metallic glasses was explored. It was found that a rejuvenated metallic glass with a high-energy state showed a different trend in hardness variation, with hardness increasing instead of decreasing with increasing enthalpy when the enthalpy was higher than an intermediate value. The reactivations of 13- and alpha-relaxation both contributed to an increase in enthalpy but had opposite effects on hardness. This study provides new insights into designing metallic glasses with excellent mechanical properties by rejuvenating relaxed metallic glasses through the farthest reactivation of 13-relaxation and avoiding reactivation of alpha-relaxation.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Qiannan Wang, Hongwang Yang, Xiaojiao Zuo, Yinxiao Wang, Jiahao Yao
Summary: High-throughput screening technology is used to study refractory multi-principal element alloys films with high W content. By adjusting the parameters, a component with the best hardening performance is successfully obtained. The film has a stable structure and excellent wear resistance.
Article
Nanoscience & Nanotechnology
Zhuoyue Sang, Le Wang, Jianwei Chen, Qunbo Fan, Sen Zhou, Lei Tao, Yayu Wu, Xiaoyang Peng, Zhiming Zhou, Jiahao Yao
Summary: In this study, a Ti422 alloy with transformation-induced plasticity (TRIP) effect was designed, which achieved simultaneous enhancement of strength and ductility through the combined effects of α' martensite and mechanical twining.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
