Article
Materials Science, Multidisciplinary
Gang Wang, Zhengwei Gu, Ge Yu, Xin Li
Summary: The hot stamping technology of high-strength aluminum alloy sheet has gained attention due to the increasing demand for lightweight automobiles. This study systematically investigates the precipitates evolution during the solution process of the AA7075-H18 alloy sheet. The insoluble particles and soluble particles were identified, and a reasonable solution temperature window was established.
Article
Chemistry, Physical
Cuiping Wang, Liangfeng Huang, Mujin Yang, Xiang Huang, Jinbin Zhang, Shaobin Pan, Shuiyuan Yang, Xingjun Liu
Summary: The study on the Ni-Ta-Si ternary system revealed the discovery of a new F phase and a revision of the composition range of the C14 Laves phase, providing guidance for alloy strategies or designing compositions for Ni-based superalloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Shuwei Duan, Fuqiang Guo, Shuaishuai Qin, Yu Gao, Kenji Matsuda, Yong Zou
Summary: The microstructure of homogenized Al-Cu-Li alloy is significantly influenced by cooling rates, leading to different phase compositions in air-cooled and furnace cooled samples.
Article
Materials Science, Multidisciplinary
Sheng Li, Xiaojiang Long, Longqing Chen, Wenbin Qiu
Summary: The microstructure and content of precipitates in metallurgical grade silicon (MG-Si) are crucial for the synthesis of silicone monomers. In this study, the evolution of the macro and microscopic structural transformation of the precipitates was investigated through heat-treatment at different temperatures. The results showed that increasing the heat-treatment temperature resulted in the splitting and rounding of inclusions, and an increase in the Si8Al6Fe4Ca phase, which enhanced the selectivity of the silicone monomer synthesis.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Wanying Li, Yilong Dai, Dechuang Zhang, Jianguo Lin
Summary: Due to their moderate degradation rate and acceptable biocompatibility, zinc and its alloys have become promising candidates for biomedical implant materials. However, their development and applications are limited by poor mechanical properties. To enhance their mechanical properties, the Zn-xLi alloys were treated with ultra-high pressure solid solution (UHPS). The UHPS samples exhibited higher solid solubility and compressive yield strength compared to as-cast (AC) samples. The ultra-high pressure solid solution treatment greatly improved the solid solubility of the Zn-Li alloys and resulted in strong solid solution reinforcement, which is the main reason for the high strength of UHPS samples.
Article
Chemistry, Physical
S. L. Lu, Z. J. Zhang, R. Liu, Z. Qu, B. Wang, X. H. Zhou, J. Eckert, Z. F. Zhang
Summary: The prior beta grain evolution and phase transformation of selective laser melted (SLM) Ti6Al4V alloy after subtransus and supertransus solution heat treatments were investigated. A method based on the special angle grain boundaries was proposed for describing the prior beta mesostructure. Subtransus treatments retained the prior beta grains and altered the martensitic microstructure into a mixture of alpha and alpha'/beta phases. Supertransus treatments resulted in the growth of prior beta grains and transformation of martensitic alpha' phases into beta phases, followed by a transformation back into alpha' martensites during quenching, leading to a new martensitic microstructure. The microhardness was mainly influenced by the amount of alpha' martensite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jingwei Liang, Zhenglong Lei, Yanbin Chen, Weijie Fu, Shibo Wu, Xi Chen, Yuchen Yang
Summary: The effect of heat treatment on the microstructure and hardness of LPBF ZK60 Mg alloy was investigated. The results showed changes in the grain boundary and precipitated phases of the alloy during the heat treatment, resulting in improved hardness and tensile strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
R. D. A. Pinto, L. D. R. Ferreira, R. A. G. Silva
Summary: Cu-Al alloys are used in marine applications for their corrosion resistance and smart materials properties. The addition of Ni and Ga in Cu81Al19 alloy showed opposite effects on critical temperatures, microhardness values, and conductivity, leading to the formation of new phases in the microstructure. This study highlights how small changes in atomic features can significantly impact the properties of Cu-Al alloys.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Jinlong Su, Fulin Jiang, Junjie Li, Chaolin Tan, Zili Xu, Haiming Xie, Jin Liu, Jie Tang, Dingfa Fu, Hui Zhang, Jie Teng
Summary: Understanding the phase transformation behaviors and microstructural evolutions during post-heat treatments is crucial for improving the mechanical performances of additively manufactured titanium alloys. This study investigates the effects of distinctive dual-stage heat treatments on the Ti-6Al-4V alloy and demonstrates that the combination of dual-stage heat treatments and salt bath quenching is an effective approach for obtaining fine microstructures and optimized strength and ductility. The study also discusses the influence of phase transformation behaviors and dislocation types on the microstructure and strengthening of the alloy.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
N. A. Belov, T. K. Akopyan, N. O. Korotkova, V. N. Timofeev, P. K. Shurkin
Summary: An experimental heat resistant alloy has been manufactured using electromagnetic casting, achieving an optimal combination of strength, electrical conductivity and thermal stability after cold rolling and annealing. The microstructure, phase composition, mechanical and electrical properties of the alloy have been extensively studied through both thermodynamic calculations and experimental analysis.
Article
Materials Science, Multidisciplinary
Tao Ma, Sicong Zhao, Erjun Guo, Lili Zhao, Rui Fan, Yu Zhang, Liping Wang
Summary: The influences of Ag addition and heat treatment on the precipitates evolution and high-temperature mechanical properties of a novel Mg alloy were investigated. The addition of Ag induced the precipitation of multiple phases, resulting in the formation of a special enclosed precipitates structure. This structure effectively blocked dislocation slip and improved the hardness and strength of the alloy.
Article
Materials Science, Multidisciplinary
Ruirun Chen, Yangli Liu, Xiang Xue, Hongze Fang, Yingmei Tan, Hongzhi Cui
Summary: After directional heat treatment (DHT) at 1730 K, DS Ti44Al6Nb1Cr2V alloy exhibited straight columnar grain growth, significant changes in B2 phase morphology, and improved mechanical properties. The ultimate tensile strength and total strain increased by 21% and 33%, respectively, compared to the untreated alloy. The DHT process resulted in reduced residual B2 phases and improved fracture behavior with the generation of stacking faults in lamellar gamma phases.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Ivan S. Zuiko, Sergey Malopheyev, Sergey Mironov, Sergey Betsofen, Rustam Kaibyshev
Summary: The macro-scale distribution of secondary precipitates in friction-stir-welded 2519 aluminium alloy was found to vary within the stir zone due to local variations in welding temperature and cooling rate. Precipitation coarsening was most pronounced at the weld root, while dissolution was enhanced at the upper weld surface. Reprecipitation phenomena were most prominent in the weld nugget.
Article
Nanoscience & Nanotechnology
Raymond Kwesi Nutor, Ran Wei, Qingping Cao, Xiaodong Wang, Shaoqing Ding, Dongxian Zhang, Fushan Li, Jian-Zhong Jiang
Summary: The high-temperature tensile deformation behaviors and microstructural evolution of the recrystallization annealed Al-7(CoNiV)(93) medium entropy alloy were investigated. The alloy exhibited high tensile strength and ductility, and showed quasi-superplastic-like elongation under certain conditions.
Article
Materials Science, Multidisciplinary
Ming Shu, Qin Zhou, Jun Xiao, Zhangjian Zhou, Yongduo Sun, Le Chen, Ke Zhao, Ting Xiao
Summary: A 20Cr-25Ni-2.5Al alumina-forming austenitic alloy containing W and B elements was aged at 923 K for 5000 h. The microstructure and tensile properties were found to change with different aging times. Precipitation of nanosized NbC carbides within grains and & sigma; phase at grain boundaries led to an increase in strength and a decrease in elongation for the 500 h aging sample. In the later stage of aging, the coarsening of NiAl and Laves phases, as well as the reduction in dislocation density caused a decline in strength. The addition of W and B improved the precipitation strengthening of Laves, increasing the high temperature tensile strength after long-term thermal aging.
JOURNAL OF MATERIALS SCIENCE
(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.