Article
Materials Science, Ceramics
Gita Novian Hermana, Hsien-Ming Hsiao, Po-Cheng Kuo, Peter K. Liaw, Yu-Chun Li, Satoshi Iikubo, Yee-Wen Yen
Summary: Cu-Zr-Ti alloys are popular metallic glass systems known for their high GFA, lower cost, and good mechanical properties. Experimental investigations of the phase equilibria revealed 15 single phases, including the ternary phase-Cu2TiZr, at 703 degrees C. The CALPHAD method successfully predicted the metallic-glass region based on suppressed intermetallic compounds, liquid miscibility gap, and spinodal curve.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Mykola Moroz, Fiseha Tesfaye, Pavlo Demchenko, Myroslava Prokhorenko, Serhiy Prokhorenko, Daniel Lindberg, Oleksandr Reshetnyak, Leena Hupa
Summary: The study experimentally evaluated the phase stabilities and thermodynamic properties of selected compounds in the Ag-Te-Cl system, identifying the formation of four new compounds below 500 K. By conducting careful electrochemical measurements in galvanic cells, the standard thermodynamic quantities of ternary compounds in the Ag-Te-Cl system were determined for the first time.
Article
Chemistry, Physical
Beilei Liao, Xuemei Ouyang, Huaxuan Li, Fucheng Yin, Zhi Li, Bingbing Yin, Jingxian Hu, Weibing Zhang
Summary: The phase equilibria of the Co-Al-Mo ternary system were investigated through experimental analysis and thermodynamic modeling. The isothermal sections of the system at 1150 and 900 degrees C were constructed using various analytical techniques and a new ternary compound r phase was identified. The thermodynamic modeling of the system was developed using the CALPHAD technique, and a set of self-consistent thermodynamic parameters was obtained with good agreement between experimental and calculated results.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
U. K. Sultana, M. Shevchenko, E. Jak
Summary: The study investigated phase equilibria of the AgO0.5-FeO1.5-SiO2 system in a wide temperature range, using various experimental techniques to accurately characterize the system. The data obtained were used to develop thermodynamic models for all phases in the system, contributing to the overall understanding of complex multicomponent pyrometallurgical systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Patric Berger, Hans Flandorfer
Summary: Lithium containing alloy systems, especially the ternary Li-Sb-Sn system, are studied as potential electrode materials for lithium ion batteries. Experimental results show that SbSn can uptake up to 15 at.% Li, forming Li3Sb and confirming the ternary phase Li8SbxSn3-x.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Edouard Koffi Kouassi, Max Wedjers Manouan, Eulogne Zoro, David Boa, Pierre Benigni, Hmida Zamali, Jacques Rogez, Dalila Hellali
Summary: The study focuses on the thermochemical properties and phase diagrams of alkali nitrate mixtures for thermal storage systems, with a critical analysis of phases and proposing reliable phase change data for pure nitrates. Differential thermal analysis and X-ray diffraction techniques are utilized to investigate the systems, revealing eutectic reactions and polymorphic transitions. By combining experimental data and utilizing the Calphad approach, a reasonable agreement is obtained between calculated results and experimental data, optimizing thermodynamic parameters in the ternary system.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xuelian Xiao, Keke Chang, Kai Xu, Ming Lou, Liping Wang, Qunji Xue
Summary: In this study, phase diagrams and Pourbaix diagrams were simultaneously constructed using the CALPHAD method and a well-constructed thermodynamic database. These diagrams accurately predicted the phase evolution and corrosion behavior of alloys in the immune and passive regions, providing significant implications for corrosion studies of multi-component alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Viera Homolova, Ales Kroupa
Summary: The aluminum-rich corner of the Al-Co-Pd ternary system was thermodynamically modeled using the CALPHAD method in this study. Different ternary phases were described using the order-disorder model, and the solubility of the third element in binary intermetallic phases was also modeled. The experimental results were used to optimize the thermodynamic parameters, resulting in good agreement between the experimental and calculated results.
Article
Chemistry, Physical
Cuiping Wang, Xiaodong Chen, Peng Yang, Qianqian Zhang, Shuiyuan Yang, Yong Lu, Yihui Guo, Xingjun Liu
Summary: The phase equilibrium of the Al-Co-Ta ternary system at two temperatures was experimentally determined using electron probe microanalysis, scanning electron microscopy, and X-ray diffraction. The addition of Al stabilizes a specific phase and forms a broad phase region in the Al-Co-Ta ternary isothermal sections. A thermodynamic assessment was conducted, and reliable thermodynamic parameters for the system were obtained, showing good agreement with experimental data.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Sheng-Xiang Wu, Li Wang, Hui-Ping Yuan, Qun Luo, Qian Li, Kuo-Chih Chou
Summary: This study experimentally investigated the phase equilibrium of the La-Y-Ni ternary system in the Ni-rich corner and assessed its thermodynamic properties using calculation methods. The results of this study are of great significance for the design of La-Y-Ni hydrogen storage alloys.
Article
Thermodynamics
Hao Wu, Changrong Li, Cuiping Guo, Zhenmin Du
Summary: This paper thermodynamically assessed the Cr-Mo-Si ternary system using the CALPHAD method and optimized the parameters of the thermodynamic descriptions of its phases. The calculated results are in good agreement with the experimental investigations and finely describe the experimental equilibria of the system.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2023)
Article
Chemistry, Physical
V. T. Witusiewicz, A. A. Bondar, U. Hecht, O. Stryzhyboroda, S. Utkin, V. Z. Kublii
Summary: This paper thermodynamically re-modelled the complete ternary B-Fe-Mo system, clarified the morphology and stability of relevant phases through experiments, and calculated selected phase equilibria and thermodynamic properties for comparison with experimental results.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Thermodynamics
Xuemei Ouyang, Xu Zhao, Che He, Fucheng Yin, Xinming Wang, Jingxian Hu
Summary: The phase equilibria of the Co-Zn-Zr ternary system were studied using experimental analysis and thermodynamic modelling. Different phase regions were observed at different temperatures, and three stable ternary compounds were discovered.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2023)
Article
Crystallography
Jinsan Wang, Xiang Xiao
Summary: This paper investigates the thermodynamic and kinetic characteristics of high strength Al-Li alloy 2A97, and observes the alloy's different microstructures using a scanning electron microscope. The research results are of great significance for process optimization and microstructure control of 2A97.
Article
Materials Science, Ceramics
Chenyang Zhou, Haipeng Jin, Huakou Yang, Jinming Liu, Hang Wang, Bin Yang
Summary: The Co-Cu-Zr system was thermodynamically modeled using the CALPHAD method, and a set of self-consistent thermodynamic parameters was obtained. These parameters were used to describe phase equilibria and thermochemical data, as well as to predict glass-forming range and ability, providing guidance for the design of Co-Cu-Zr-based metallic glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
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.