Article
Nanoscience & Nanotechnology
Cunguang Chen, Feng Li, Weihao Han, Tianxing Lu, Pei Li, Qianyue Cui, Yanli Sui, Zhimeng Guo, Alex A. Volinsky
Summary: High thermal stability of pure Al conductors is crucial for their applications in power transmission lines. By utilizing powder metallurgy and optimizing the processing, this study was able to enhance the strength and electrical conductivity of Al conductors. The cold-drawn wires exhibited higher electrical conductivity and optimal mechanical properties, pushing forward the potential application of PM Al in heat resistant conductors.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Binghao Han, Shuiqing Liu, Xin Wang, Yingguang Liang, Yuhang Xia, Chunxiang Cui
Summary: Hybrid aluminum matrix composites containing polyphasic and multi-scale reinforcement particles were prepared by powder metallurgy and meltspinning method, which significantly improved the mechanical properties of Al-12Si alloy, including tensile strength, ductility, and hardness. The excellent mechanical properties were attributed to micron-sized VSi2 particles, nano-sized AlN, VB2, Al4C3, as well as well-bonded particle/matrix interface. Multiple strengthening mechanisms, such as Orowan strengthening, CTE mismatch strengthening, and Hall-Petch effect, contributed to the enhancement of mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Xingming Zhao, Jingran Meng, Chi Zhang, Wei Wei, Fufa Wu, Guangan Zhang
Summary: A novel method combining rapid solidification/powder metallurgy with hot extrusion was proposed for improving the microstructure and properties of Al-Si-Cu alloys. The phase composition, microstructure, and mechanical properties of the extruded alloy were investigated. The results showed that the extruded alloy had five phases and exhibited improved density, tensile strength, and elongation compared to the unextruded alloy. This method greatly enhanced the mechanical properties of the Al-Si-Cu alloy compared to traditional casting.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Engineering, Manufacturing
Zhen Xiao, Wenhui Yu, Hongxun Fu, Yaoji Deng, Yongling Wu, Hongyu Zheng
Summary: This review provides an in-depth insight into laser powder bed fusion (LPBF) technology and its applications with aluminium alloys. It discusses the influence of thermal dynamics on microstructure in LPBF and summarizes the methods to refine microstructures in LPBF fabrication of various aluminium alloys. The review concludes with a summary of microstructural control and an outlook on the challenges and potential research topics in LPBF with Al alloys.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Nanoscience & Nanotechnology
Chenzeng Zhang, Cunguang Chen, Xinhua Liu, Mengjie Yan, Miao Qi, Xuecheng Li, Yang Li, Haifeng Zhang, Fang Yang, Wenwen Wang, Zhimeng Guo
Summary: This study successfully improved the strength and electrical conductivity of Cu-Fe alloys (CFAs) by using ultrafine alloy powders embedded with nano Fe particles. The microstructure of CFAs was refined and the formation of Cu twins was inhibited by the addition of Fe particles. CFAs prepared via this method exhibited superior mechanical and electrical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Review
Engineering, Manufacturing
H. R. Kotadia, G. Gibbons, A. Das, P. D. Howes
Summary: Additive manufacturing of metallic alloys has gained significant interest in the past two decades, particularly in aerospace and automotive applications. However, the development of AM with Al-alloys has been slow, with current research focusing on AlSiMg-based alloys and AlMgSc alloys, facing challenges and obstacles.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Physical
Eun Byeol Choi, Yun-Ju Lee, Jong-Hyun Lee
Summary: The study demonstrates the successful development of an effective paste that can rapidly form a highly thermal-conductive line structure. By using a paste containing Cu@Ag particles in air, excellent shear strength and microstructure can be achieved in a short period of time, showing rapid sintering with low material cost.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Harish Kumar Adigilli, Kolan Madhav Reddy, Yixuan Hu, Rajamallu Karre, P. V. V. Srinivas, K. Guruvidyathri, Anirudha Karati, V. S. Hariharan, P. Suresh Babu, A. K. Pandey, Joydip Joardar
Summary: Nanostructured two-dimensional WS2 reinforced Al-4Cu alloy matrix composites were prepared using spark plasma sintering, resulting in the formation of Al-W-Cu ternary phase at the grain boundaries and increased hardness in the composite material. High-resolution transmission electron microscopy and scanning TEM were utilized to confirm the structure and characteristics of the ternary phase, as well as the in situ formation mechanism.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Saud M. Almotairy, A. Fadavi Boostani, M. Hassani, D. Wei, Z. Y. Jiang
Summary: This study discusses the beneficial effect of thixoforming process on improving the tensile properties of aluminium matrix composite produced using flake metallurgy route. Microstructural studies show the synergic effect of thixoforming process in achieving uniform distribution of SiC nanoparticles, while X-ray diffraction characterizations reveal the promising effect of SiC nanoparticles on restricting grain growth within nanoscale regime. Tensile tests demonstrate that samples prepared using dual speed ball milling flake metallurgy have superior properties compared to those prepared using other methods.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ali Ajani, Hussain Gilani, Sumaiya Islam, Neamul Khandoker, Abdul Md Mazid
Summary: The study focuses on manufacturing CNT-reinforced surface composites of aluminum alloy using friction stir processing, achieving high strength and ductility. Scanning electron microscopy revealed the fracture surface morphology, and the highest temperature rise during FSP did not lead to melting of the material.
Article
Materials Science, Multidisciplinary
Bruno Edu Arendarchuck, Hipolito Domingo Carvajal Fals, Luciano Augusto Lourencato
Summary: This paper evaluates the thixoforming process in an aluminum matrix composite made by the stir casting process. The results show an increase in hardness and improved particle distribution after the thixoforming, making it suitable for manufacturing parts with good characteristics and properties.
Article
Materials Science, Characterization & Testing
Nuo Liu, Yonggui Li, Dandan Xie, Qianru Zeng, Haibo Xu, Mingzheng Ge, Wei Zhang, Yu Zhang, Rong Liu, Jiamu Dai, Haifeng Zhang, Suying Li
Summary: The organic-inorganic synergistic UVSA-LDH material was successfully synthesized by inserting UVSA anion into ZnAl-LDH and it was used to prepare a UVSA-LDH/PP fiber with UV aging resistance. The addition of UVSA-LDH improved the UV absorption of ZnAl-LDH and inhibited the thermal degradation of UVSA. Moreover, it greatly enhanced the thermal stability and UV aging degradation resistance of PP fiber. The potential application prospect of UVSA-LDH as a UV-stabilized material for PP fiber was demonstrated.
Review
Materials Science, Multidisciplinary
Mohammad Reza Akbarpour, Farid Gazani, Homayoun Mousa Mirabad, Iman Khezri, Ali Moeini, Nafiseh Sohrabi, Hyoung Seop Kim
Summary: Cu-SiC composites have high thermal and electrical conductivity, mechanical strength, moldability, and low production cost. This review summarizes the scientific research on processing, effective parameters, and strategies to modify the Cu-SiC interface, covering microstructural, mechanical, tribological, thermal, and electrical properties of Cu-SiC composites.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Chemistry, Applied
Mahadev Madgule, C. G. Sreenivasa, Avinash V. Borgaonkar
Summary: This study developed aluminum metal foam specimens using wax powder as a blowing agent and investigated the effect of process parameters on their mechanical behavior. It was found that powder size had the most significant impact, followed by stirring speed, foaming agent content, and sintering temperature.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Chemistry, Physical
Piotr Noga, Tomasz Skrzekut, Maciej Wedrychowicz
Summary: This paper presents the results of tests on rapidly solidified aluminum alloys with silicon addition. Casting by melt-spinning and subsequent consolidation processes were used to obtain metallic material in the form of flakes. The refined structure of the materials obtained through melt-spinning compared to gravity-casting and extrusion was observed. The mechanical properties of the rapidly solidified materials were analyzed and compared with gravity cast materials, showing an increase in strength properties.
Article
Engineering, Electrical & Electronic
Ugur Topal, Peter Svec, Hava Can, Fatmanur Celik, Cengiz Birlikseven, Ivan Skorvanek, Frantisek Andrejka, Branislav Kunca, Josef Marcin, Peter Svec, Irena Janotova, Atilla Uygur
Summary: This study investigated the temperature dependencies of Fluxgate magnetometers with different core materials, finding that the sensitivity of the sensors is affected in various ways by core material and heat treatment. The sensor with a heat treated in-house prepared finemet core was found to be the most stable, decreasing error from temperature variations to less than 1.0% in magnitude.
IEEE SENSORS JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Andriy Yakymovych, Yuriy Plevachuk, Lubomir Orovcik, Peter Svec
Summary: The addition of metal nanoparticles to Sn-3.0Ag-0.5Cu solder can impact the morphology of solder alloy and solder/Cu joint, leading to a decrease in the average thickness of the interfacial intermetallic compound layer. This can potentially improve the mechanical reliability of solder joints.
APPLIED NANOSCIENCE
(2022)
Article
Nanoscience & Nanotechnology
M. Neslusan, D. Kajanek, M. Pitonak, D. Janickovic, F. Andrejka
Summary: The study investigated Barkhausen noise emission in soft magnetic bilayer ribbons, revealing distinct characteristics between amorphous and annealed ribbons during the magnetization process. Furthermore, a gentle asymmetry in the consecutive Barkhausen noise envelopes was detected.
Article
Chemistry, Physical
Jiri Kubasek, Jan Pinc, Klara Hosova, Marketa Strakova, Orsolya Molnarova, Jan Duchon, David Necas, Miroslav Cavojskyc, Michal Knapek, Matjaz Godec, Irena Paulin, Dalibor Vojtech, Jaroslav Capek
Summary: This paper investigates the effects of extrusion temperature and ratio on the microstructure and mechanical properties of Zn-0.8Mg-0.2Sr alloy. The results show that the grain size, material texture, and dislocation substructures have a significant influence on the alloy's elongation range and anisotropy. Under appropriate extrusion conditions, the alloy's mechanical properties can be greatly improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Behzad Sadeghi, Pasquale Cavaliere, Martin Balog, Catalin Iulian Pruncu, Ali Shabani
Summary: In this study, Al2O3/Al laminated composites with high dislocations storage capability were fabricated using flake powder metallurgy combined with micro/macro-rolling. The effect of deformation mode, grain size, aspect ratio, and crystallographic textures on dislocation density was analyzed. The results showed that the dislocation density is influenced by Al2O3 dispersion and bonding, as well as mechanical micro-rolling and macrorolling processes. The MMR process was found to provide laminated ultra-fined grains with higher dislocation storage capability compared to equiaxed grains.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Ivona Cernickova, Libor Duriska, Peter Svec, Peter Svec, Marek Mihalkoviec, Pavol Priputen, Patrik Sulhanek, Jozef Janovec
Summary: This work aimed to propose the experimental partial isothermal section of the Al-Pd-Co phase diagram at 1035 degrees C and study the structure of quasicrystalline approximant epsilon n using various microscopy techniques and Monte Carlo simulation. Various modifications of epsilon n were observed in the investigated alloys, including the experimental observation of epsilon 22 and epsilon 34 structures in the Al-Pd-Co system for the first time, along with the creation of their atomic structure models. It was also experimentally documented that the regular arrangement of tiles in epsilon n structures can be interrupted by structural defects.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
B. A. Rusanov, V. E. Sidorov, S. A. Petrova, P. Svec Sr, D. Janickovic
Summary: Cobalt and iron-based alloys with tendency to amorphization are currently a hot topic due to their unique magnetic and electrical properties. This study investigated the effect of small additions of rare earth metals (Nd, Sm, Tb, Yb) on the phase transitions and density of Co48Fe25Si4B19Nb4 alloy. The results showed that the rare earth metal additions can affect the solidus and liquidus temperatures of the alloy, as well as its density. The study also observed possible structural transformations in the melt state.
RUSSIAN METALLURGY
(2022)
Article
Chemistry, Physical
Branislav Kunca, Jozef Marcin, Richard Parsons, Peter Svec, Peter Svec sr, Kiyonori Suzuki, Ivan Skorvanek
Summary: Ultra-rapid annealing (URA) with pre-heated massive Cu blocks has been found to be effective in producing Fe-(Co)-B based nanocrystalline alloys with reduced metalloid content and desirable magnetic properties. However, further research is needed to understand the behavior of these alloys at elevated temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Roman Szewczyk, Michal Nowicki, Oleg Petruk, Anna Ostaszewska-Lizewska, Aleksandra Kolano-Burian, Marcin Polak, Pawel Nowak, Piotr Gazda, Adam Bienkowski, Igor Korobiichuk, Tadeusz Szumiata, Peter Svec, Jacek Zielinski, Marcin Kaminski, Tomasz Charubin
Summary: This study proposes a method to model inductive components using SPICE models, which utilize isotropic and anisotropic soft magnetic materials, especially nanocrystalline alloys, to produce improved gyrator-capacitors. The implementation of the Langevin function-based magnetization curve model and the application of a differential evolution method for parameter identification allow for effective modeling of inductive cores made from FINEMET-type nanocrystalline alloys.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Ceramics
Alen Fos, Peter Svec Sr, Irena Janotova, Dusan Janickovic, Beata Butvinova, Marek Buran, Anna Kyritsi, Nikolaos Konstantinidis, Patrik Novak
Summary: The crystallization kinetics of rapidly quenched Fe-Sn-B alloys under non-isothermal conditions were studied in this research. Two stages of crystallization were observed in the alloys. The addition of Cu decreased the activation energy of the first stage, while the addition of Co increased it. The crystallization mechanism of Fe81Sn7B12 and (Fe81Sn7B12)99Cu1 alloys involved an increase and subsequent decrease in nucleation rate, whereas the mechanism of (Fe3Co1)81Sn7B12 alloy initially showed an increase in nucleation rate and then a decrease, followed by a decrease to zero. The first stage of crystallization resulted in the formation of alpha-Fe phase with bcc structure from the amorphous matrix, while the second stage led to the crystallization of tetragonal Fe2B phase and hexagonal FeSn phase. The addition of Cu reduced the size of alpha-Fe crystallites by 60% and the concentration of Sn in alpha-Fe phase by 0.8 at. %, while the addition of Co had no effect on the size of alpha-Fe crystallites but decreased the concentration of Sn in alpha-Fe phase by 1.7 at. %.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Erika Tothova, Robert Tarasenko, Vladimir Tkac, Martin Orendac, Matej Balaz, Mamoru Senna, Shiro Kubuki, Masashi Takahashi, Peter Svec, Peter Svec, Vladimir Girman
Summary: A simple one-step mechanically induced route was used to synthesize Gd2MoO6 with a disordered structure. The elemental analysis confirmed a homogeneous distribution of Gd, Mo, and O. Gd-155 Mossbauer spectroscopy provided information about the local structure of GMO. The simplified synthesis method resulted in GMO with excellent magnetic properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Spectroscopy
Vishal Dwivedi, David Prochazka, Dusan Janickovic, Petr Sperka, Peter Svec, Jozef Kaiser, Pavel Veis, Pavel Porizka
Summary: This study explores the rapid quality assessment and quantification of individual layers of an amorphous bilayer ribbon using LIBS technique, achieving compositional quantification, depth profiling, and homogeneity testing through optimization of experimental parameters.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
David Gonzalez-Alonso, Lorena Gonzalez-Legarreta, Jozef Marcin, Peter Svec, Ivan Skorvanek
Summary: In this study, the effects of field annealing on the soft-magnetic properties, magnetoimpedance response, and field sensitivity of nanocrystalline (Fe3Ni)(81)Nb7B12 alloy ribbons were investigated. It was found that the zero-field-annealed (ZFA) ribbons exhibited the highest magnetoimpedance values within the low-frequency range of 2-5 MHz, which was attributed to the formation of irregular transversally patched magnetic domains after annealing. The highest sensitivity was achieved for the field-annealed samples with magnetic field applied transverse to the ribbon axis.
Article
Materials Science, Multidisciplinary
O. Zivotsky, Y. Jiraskova, J. Bursik, D. Janickovic, J. Cizek
Summary: The structure and magnetic properties of Mn2FeSi alloy, a potential Heusler material, were studied using rapid solidification technology. It was found that the as-prepared Mn2FeSi ribbon exhibited paramagnetism at room temperature and had a cubic structure with a lattice parameter of 0.567 nm. The presence of other phases at low temperatures affected the structural and physical properties of the sample after annealing.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
