Review
Materials Science, Multidisciplinary
Yu-ting Wu, Chong Li, Ye-fan Li, Jing Wu, Xing-chuan Xia, Yong-chang Liu
Summary: The heat treatment of Ni3Al-based alloys significantly influences the microstructure of the alloys and desirable mechanical properties can be achieved through heat treatment. Additionally, the evolution of secondary phases during heat treatment, including the kinetics of precipitate growth, and the effects of heat treatment on the mechanical properties of the alloys are discussed.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Materials Science, Ceramics
Apriany Saludung, Takumu Azeyanagi, Yuko Ogawa, Kenji Kawai
Summary: Designing a building material with excellent heat resistance is important for protecting against catastrophic fires. Geopolymer, a material with ceramic-like properties, has better heat resistance than traditional cement and has been investigated as a potential solution. However, the impact of curing temperature and conditions on the heat resistance of geopolymers is still unclear.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Kateryna Kamyshnykova, Juraj Lapin, Tatiana Pelachova, Tomas Cegan, Jan Jurica, Anastasia Volodarskaja
Summary: The microstructure and mechanical properties of five alloys with varying carbon content were studied. The alloys were prepared by vacuum induction melting and centrifugal casting, followed by hot isostatic pressing and heat treatment. The microstructure of the heat-treated alloys consists of alpha 2 + gamma lamellar grains and gamma grain boundaries. Carbon content affects the interlamellar spacing and Vickers microhardness. Some alloys show improved creep resistance at high temperatures.
Article
Nanoscience & Nanotechnology
Zishu Sun, Xiangwei Jiang, Xin Zhan, Kaiwen Li, Wei Zheng, Dongpo Jiang, Dahui Liu, Jiasheng Dong, Langhong Lou
Summary: Directionally solidified Ni-based superalloys are widely used in gas turbine blades for their excellent mechanical properties. Rejuvenation heat treatment (RHT) can effectively restore the degraded microstructure and mechanical properties. The effects of RHT on different degrees of degradation at different temperatures were investigated in this study. Additionally, the evolution of dislocations after RHT was studied, and it was found that RHT can eliminate and rearrange dislocations.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Yen-Yi Chen, Jian-Hong Li, Shu-Yi Tung, Ming-Hung Tsai
Summary: Equilibrium or near-equilibrium phase data are crucial for the development and application of high entropy alloys (HEAs). This study investigated the phase constituents and microstructures of three equimolar CoCrFeNiX alloys (X = B, Al, Ga) after prolonged annealing and compared them with CALPHAD predictions. The data obtained are valuable for studying phase formation and other aspects of HEAs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yake Xiao, Xiangpeng Chang, Xianghe Peng
Summary: In recent years, significant efforts have been made to develop high-performance alloys, including high-entropy alloys, for engineering applications. In this study, a novel lightweight high-entropy alloy (HEA) was prepared and its microstructure, compressive properties, and deformation mechanisms were investigated. The results showed that the HEA has a low density, high strength, and good ductility at both room and elevated temperatures. The excellent mechanical properties of the HEA suggest its potential application in high-temperature structures.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
K. Xu, H. Jiang, J. B. Yan, P. Zhang, P. Liu, G. H. Cao, Y. Yuan
Summary: This study investigated the high-temperature tensile properties and deformation mechanisms of a solution treated Ni-Fe-based alloy. It was found that the alloy exhibited higher yield strength and ultimate strength at 700 degrees Celsius. The carbides in the alloy can impede crack propagation but also intensify stress concentration. Micro-cracks around carbides at grain boundaries at temperatures above 700 degrees Celsius resulted in intergranular fracture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Xiao-Yun Song, Yan Li, Fei Zhang
Summary: The impact of solution and aging heat treatment on microstructural evolution and room temperature tensile properties for as-forged Ni-45Ti-5Al-2Nb-1Mo alloy was studied. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and tensile tests were used. The results showed that the microstructure of the solution-treated alloy consisted of NiTi matrix, Ti2Ni, and (Nb,Ti)(SS) phases. Aging treatment at 700°C for 6 and 100 hours increased the uniformity of Ti2Ni and (Nb,Ti)(SS) precipitates. Aging at 800°C for 100 hours resulted in the precipitation of nanosized Ni2TiAl phases within the grains, significantly improving tensile strength but reducing elongation.
Article
Chemistry, Physical
Kan Chen, Ruizhi Zhang, Jan-Willem G. Bos, Michael J. Reece
Summary: The successful synthesis of a single-phase high-entropy half-Heusler compound through mechanical alloying and spark plasma sintering allows for a homogeneous distribution of multiple elements in the samples. The stability of the samples, as well as the ability to exhibit both n-type and p-type semiconductor behavior by adjusting the Fe/Co ratio, indicate the promising potential of the high-entropy concept in extending composition range and tuning thermoelectric properties for half-Heusler materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Shiyu Wu, Dongxu Qiao, Haitao Zhang, Junwei Miao, Hongliang Zhao, Jun Wang, Yiping Lu, Tongmin Wang, Tingju Li
Summary: The microstructure and mechanical properties of refractory high-entropy alloys (RHEAs) were studied, showing excellent performance at high temperatures with yield strength surpassing currently known alloys. These RHEAs exhibited high-temperature performance stability and excellent plasticity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
B. S. Zhang, Y. X. Yu, Z. L. Tao, J. B. Sha
Summary: A comparative study was conducted on a novel alloy's microstructure and mechanical properties, showing that the single-crystal alloy exhibited higher yield strength and elongation under tension in various conditions, with excellent ductility, while the polycrystalline alloy lost ductility at high temperatures.
Article
Chemistry, Physical
Tiffany Wu, David C. Dunand
Summary: This study investigates the microstructure and thermomechanical properties of Al11Ce3, an intermetallic compound that strengthens Al-Ce based eutectic alloys. The results show that Al11Ce3 is hard and brittle, with coarse and elongated grains and internal twins. The thermal expansion coefficient and oxidation kinetics of Al11Ce3 vary with temperature. At 500 degrees C, Al11Ce3 exhibits extensive plastic creep deformation. The study also found that the creep resistance of Al11Ce3 at 500 degrees C is similar to that of L1(2)-Al3Sc.
Article
Materials Science, Ceramics
Hongnian Dong, Xiguang Gao, Sheng Zhang, Yingdon Song, Jinshan Yang, Fang Wang
Summary: Heat treatment can improve the mechanical properties of composites by releasing thermal residual stress, although it may damage the fiber.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Anna Knaislova, Vendula Simunkova, Pavel Novak, Filip Prusa, Marcello Cabibbo, Lucyna Jaworska, Dalibor Vojtech
Summary: Intermetallic alloys based on Ti-Al-Si system are significant for their excellent high-temperature properties, but high brittleness at room temperature is a main concern. Adding alloying elements has been attempted to improve the properties, but porous microstructure remains a challenge.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Ali Shafiei, Saeed Khani Moghanaki, Mostafa Amirjan
Summary: The microstructure and mechanical properties of Al14Co41Cr15Fe10Ni20 high entropy alloy were investigated in this study. The alloy exhibited a dual phase microstructure composed of dendritic solid solution FCC phase and an interdendritic B2 (BCC) phase, both in as-cast and homogenized states. Aging treatments at temperatures in the range of 750°C-1000°C resulted in the uniform distribution of precipitates throughout the alloy. The mechanical tests showed that the room temperature properties of the alloy were comparable to commercial Co-based alloys, but the high temperature ductility was poor. These findings contribute to the development of high entropy alloys with dual phase FCC/B2 microstructures.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Takeshi Okuno, Yasuyuki Kaneno, Takuto Yamaguchi, Satoshi Semboshi, Hideki Hagino, Takayuki Takasugi
JOURNAL OF MATERIALS RESEARCH
(2017)
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Shintaro Amano, Jie Fu, Akihiro Iwase, Takayuki Takasugi
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2017)
Article
Chemistry, Physical
Satoshi Semboshi, Tatsuro Takeuchi, Yasuyuki Kaneno, Akihiro Iwase, Takayuki Takasugi
Article
Materials Science, Multidisciplinary
Akinori Uekami, Satoshi Semboshi, Yasuyuki Kaneno, Takayuki Takasugi
MATERIALS TRANSACTIONS
(2018)
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Mikio Ishikuro, Akihiro Iwase, Takayuki Takasugi
MATERIALS TRANSACTIONS
(2018)
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Yasuyuki Kaneno, Takayuki Takasugi, Naoya Masahashi
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2018)
Article
Metallurgy & Metallurgical Engineering
Miki Tanaka, Takuto Yamaguchi, Hideki Hagino, Satoshi Semboshi, Yasuyuki Kaneno, Takayuki Takasugi
JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Yasuyuki Kaneno, Takayuki Takasugi, Sueng Zeon Han, Naoya Masahashi
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Ryosuke Sasaki, Yasuyuki Kaneno, Takayuki Takasugi
Editorial Material
Materials Science, Multidisciplinary
Takayuki Takasugi
Article
Materials Science, Multidisciplinary
Satoshi Semboshi, Hiroshi Nakamura, Yosuke Kawahito, Yasuyuki Kaneno, Takayuki Takasugi
Article
Materials Science, Multidisciplinary
Kazushige Ioroi, Yasuyuki Kaneno, Takayuki Takasugi
Article
Materials Science, Multidisciplinary
Kazushige Ioroi, Yasuyuki Kaneno, Satoshi Semboshi, Takayuki Takasugi
Article
Chemistry, Physical
Satoshi Semboshi, Mitsutaka Sato, Yasuyuki Kaneno, Akihiro Iwase, Takayuki Takasugi
Article
Materials Science, Multidisciplinary
Takeshi Okuno, Yasuyuki Kaneno, Takuto Yamaguchi, Takayuki Takasugi, Satoshi Semboshi, Hideki Hagino
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.