Article
Chemistry, Physical
Yikun Zhang, Jian Zhu, Shuo Li, Bin Zhang, Yarning Wang, Jiang Wang, Zhongming Ren
Summary: The amorphous ribbons of RE60Co20Al20 (RE = Ho, Er, Tm) were fabricated and characterized for their magnetic properties and magnetocaloric effects. The results suggest that these materials are promising for cryogenic magnetic refrigeration applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Weihuo Li, Ying Huang, Qiang Wang, Xu Zhou, Ding Ding, Lei Xia
Summary: This paper investigates the glass-forming ability and magnetic properties of Tb65Ni35-xCox amorphous ribbons. The T-rg and gamma of the ribbons reach their maximum when x = 20, indicating the optimal glass-forming ability of the Tb65Ni15Co20 amorphous alloy. The amorphous alloy exhibits a Curie temperature of approximately 79 K and shows typical spin-glass-like behavior. The magnetic entropy change peak value is up to 9.47 J kg(-1) K-1 under 5 T.
Article
Chemistry, Physical
Shan Zhang, Chao Wei, Zhilin Shi, Haoran Zhang, Mingzhen Ma
Summary: Fe doping significantly improves the glass-forming ability, stability, and mechanical properties of Zr50Cu34-xFexAl8Ag8 metallic glasses. The addition of Fe inhibits the formation of crystalline phases, increases the glass-forming ability, and enhances the fracture strength and ultimate strain of the metallic glass samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mehdi Malekan, Reza Rashidi, Mansoor Bozorg, Nick Birbilis
Summary: The effect of yttrium (Y) on the glass-forming ability (GFA), mechanical properties and corrosion of (Cu50Z-r43Al7)100-xYx alloys was studied. The addition of Y improved the GFA of Cu50Zr43Al7 alloy, with a GFA of 15 mm obtained for (Cu50Zr43Al7)98Y2. The bulk metallic glasses (BMGs) exhibited limited plastic strain but achieved high compressive fracture strength and Young's modulus. The corrosion resistance of the BMGs was improved by the addition of Y.
Article
Materials Science, Multidisciplinary
Jie Xiong, Tong-Yi Zhang
Summary: A data augmentation technique is used to process a training dataset and develop an ensemble machine learning model for predicting the maximal diameter of bulk metallic glasses (BMGs). The model outperforms all reported models and provides insights into the glass forming ability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Li Jinfu, Li Wei
Summary: Although Al-based amorphous alloys have excellent mechanical properties and good corrosion resistance, their poor glass-forming ability limits their engineering applications. This article briefly reviews the development of Al-based amorphous alloys, discusses their microstructure, composition design theory, relationship between glass-forming ability and composition, and selection of primary phase during crystallization. Finally, future research directions for Al-based amorphous alloys are proposed.
ACTA METALLURGICA SINICA
(2022)
Article
Chemistry, Physical
Ling Bai, Ziyang Ding, Haiying Zhang, Chunxiang Cui
Summary: Ti-based alloys fabricated by a single roller spun-melt technique exhibit excellent glass-forming abilities and have a large supercooled liquid region. These amorphous alloys also show relatively high corrosion resistance in corrosive solutions.
Article
Physics, Multidisciplinary
A. Surendar, K. Geetha, C. Rajan, M. Alaazim
Summary: The study investigated the effects of silver addition on the properties of bulk metallic glasses, revealing that an increase in silver content reduces the activation energy for glass transition while increasing it for crystallization. Furthermore, it was found that silver addition significantly influenced the inherent features of bulk metallic glasses, improving atomic mobility and structural rearrangement, thereby enhancing glass forming ability and thermal stability.
Article
Materials Science, Ceramics
Xiaowei Liu, Zhilin Long, Lingming Yang, Wei Zhang, Zhuang Li
Summary: In this study, four machine learning models were used to predict the glass forming ability (GFA) of amorphous alloys, with the XGBoost model showing the highest predictive performance. The results suggest that machine learning method has great potential for designing new amorphous alloys with desired GFA.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
Xuan Liu, Xingfu Wang, Yongli Si, Fusheng Han
Summary: The Al70Fe12.5V12.5Ni5, Al70Fe12.5V12.5Zr5, and Al70Fe12.5V12.5Nb5 alloys prepared by mechanical alloying were studied to investigate the influence of Zr, Nb, or Ni addition on the glass-forming ability of Al-Fe-V amorphous alloys. The Al70Fe12.5V12.5Ni5 alloy exhibited higher glass-forming ability and activation energies of crystallization compared to the other two alloys. Analysis showed that the effective atomic size ratio value was more significant than the values of mixture enthalpy in determining the glass-forming ability of these amorphous alloys.
Article
Materials Science, Multidisciplinary
Nikifor Rakov, Glauco S. Maciel
Summary: Fluorescent material doped with rare-earth ions, such as Nd3+-doped CYS ceramic powder, showed intense near-infrared (NIR) fluorescence when excited by CW laser radiation, offering potential for optical temperature sensing within the biological window. Characteristic emission peaks at 811 and 895 nm were observed, with noticeable changes in fluorescence behavior at different temperatures, indicating maximum absolute sensitivity at 795 K and relative thermal sensitivity at 298 K. These results suggest the Nd3+-doped CYS powder system has promising applications in thermal sensing within the first biological window.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yuzhao Zhou, Ling Zhao, Yuwei Qu, Liwei Hu, Li Qi, Fengsheng Qu, Shixiong He, Xue Liu
Summary: The doping of yttrium was found to improve the glass forming ability and crystallization activation energy of Zr-Cu-Ni-Al MG. The maximum glass forming ability was achieved with 2% yttrium doping. The potentiodynamic polarization results showed that the Y2 alloy exhibited the best corrosion resistance among the Y0-Y3 alloys. Additionally, proper yttrium doping simultaneously enhanced the glass forming ability, thermal stability, and corrosion resistance of Zr50.7Cu28Ni9Al12.3 MG.
Article
Chemistry, Physical
X. W. Liu, Z. L. Long, W. Zhang, L. M. Yang
Summary: The glass forming ability (GFA) of amorphous materials is of great concern. In this study, a gradient boosted decision trees (GBDT) model was used to predict GFA based on 820 experimental data, achieving excellent predictive results. The GBDT model shows the highest prediction ability compared to previous criteria and ML models.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kuang Lv, Yuluo Li, Ningning Shen, Yidong Wu, Gaofeng Li, Yanli Wang, Xidong Hui
Summary: This study investigates the GFA, nanocrystallization, and soft magnetic properties of Fe-based alloys. It shows that increasing the V content can increase the critical thickness of as-quenched amorphous ribbons, and achieving excellent magnetic properties can be done by adjusting the V/Cu ratio and annealing temperatures.
Article
Materials Science, Multidisciplinary
Tinghong Gao, Yong Ma, Yutao Liu, Qian Chen, Yongchao Liang, Quan Xie, Qingquan Xiao
Summary: Scientists collected data, employed machine learning algorithms, and used interpretative models to study the relationship between glass forming ability and properties of metallic glasses, providing insights for the discovery of novel metallic glasses.
MATERIALS & DESIGN
(2023)
