Article
Materials Science, Ceramics
Rafael A. Riera, Salil Bavdekar, Matthew DeVries, Jogendar Singh, Ghatu Subhash
Summary: The mechanical properties of BAM-B4C composite materials improve with the addition of B4C, but excessive addition can lead to phase segregation and cracking, thus degrading the mechanical properties of the composite.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Rityuj Singh Parihar, Raj Kumar Sahu, Srinivasu Gangi Setti
Summary: This article explores the wear behavior in dry machining by preparing Functionally Graded Cemented Tungsten Carbide (FGCC) with solid lubricant. The experiments show that the presence of solid lubricant reduces the coefficient of friction and wear. The ambient temperature and load have the most significant influence on wear and coefficient of friction.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Chemistry, Physical
Ziyang Xiu, Boyu Ju, Saiyue Liu, Yiwei Song, Jindan Du, Zhimin Li, Chang Zhou, Wenshu Yang, Gaohui Wu
Summary: This paper investigates the influences of sintering temperature and holding time on the microstructure and mechanical properties of six-layer AlN/Al gradient composites. The hardness and thermal expansion properties of the composites exhibit a gradient property, with the best performance achieved at 45% volume fraction of AlN. Simulation results show that the gradient material can effectively reduce thermal stress caused by mismatch of thermal expansion coefficients.
Article
Nanoscience & Nanotechnology
Jianglong Liu, Fengxian Li, Jianhong Yi, Yichun Liu, Jurgen Eckert, Quanshan Zuo
Summary: Novel Fe-8Cr-xNi (x e 0-9.0 wt%) functionally graded materials (FGMs) with strength gradient characteristics of ductile core and strength surface were fabricated by spark plasma sintering (SPS). Microstructural evolution and strength-toughness matching mechanism of the graded alloys were investigated. The results showed that the addition of Ni content promoted the formation of austenitic FCC gamma-Fe phase, increased the strength and toughness of the materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Chemical
Tomoyuki Fujii, Ryo Murakami, Naoto Kobayashi, Keiichiro Tohgo, Yoshinobu Shimamura
Summary: This study proposes a powder metallurgy-based space holder technique to fabricate porous titanium with a wide range of microstructures. The mechanical performance of porous titanium was evaluated and compared with natural bones, showing that functionally graded porous titanium had improved mechanical properties suitable for implant materials.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Victor Zamora, Francisco J. Martinez-Vazquez, Fernando Guiberteau, Angel L. Ortiz
Summary: The feasibility of fabricating boron carbide-silicon carbide composites by spark-plasma sintering (SPS) at low temperature was investigated. The composites exhibited fine-grained structure, high hardness, moderate toughness, and affordability, making them attractive for engineering applications. The use of sufficient Si aids during SPS resulted in the formation of a eutectic melt, promoting low-temperature densification. Additionally, the original B4C underwent an isostructural crystallographic transition with the addition of Si.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Leyla Yanmaz, Filiz Cinar Sahin
Summary: Square-shaped monolithic B4C and B4C-ZrB2 composites were produced using SPS method. The addition of 5, 10, 15 vol% ZrB2 had an effect on the densification, mechanical and microstructural properties of boron carbide. The density of B4C increased with increasing volume fraction of ZrB2 and the density differences in different regions of the sample decreased. The addition of ZrB2 enhanced the hardness and fracture toughness of the composites compared to monolithic B4C. The B4C-15 vol% ZrB2 composite exhibited superior properties with a hardness of 33.08 GPa and Vickers indentation fracture toughness of 3.82 MPa·m1/2.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Burak Cagri Ocak, Gultekin Goller
Summary: Monolithic B4C and B4C-based ceramics incorporating FeNiCoCrMo dual-phase high entropy alloys (HEAs) were produced by spark plasma sintering (SPS) in this study. The addition of HEAs enhanced the densification behavior and increased the hardness and fracture toughness values of the samples. The highest density and the best mechanical properties were achieved with 2.00 vol.% HEA addition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Jonathan Kenny, Nikkia McDonald, Jon Binner, Isaac Tsz Hong Chang, Sylvain Marinel
Summary: Using spark plasma sintering, >98.5% dense boron carbide samples were successfully fabricated from powders synthesized via a low temperature process. The synthesized powder showed lower levels of residual free carbon compared to commercially available samples, resulting in higher hardness values despite a coarser grain size. This improvement is believed to be due to the influence of ZrO2 and AlB2 impurities introduced during powder milling, rather than the lower carbon content.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
M. Shahriari, M. Zakeri, M. Razavi, M. R. Rahimipour
Summary: The HfB2-HfC-SiC nanocomposite was successfully produced using spark plasma for the first time, with a self-propagating mode during synthesis and completion at temperatures below 400 degrees Celsius. Thermodynamic calculations and X-ray diffraction confirmed the formation of HfB2, HfC, and SiC phases, with respective crystallite sizes of about 54, 26, and 43 nm determined using the Rietveld method.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
H. Unsal, S. Grasso, A. Kovalcikova, O. Hanzel, M. Tatarkova, I Dlouhy, P. Tatarko
Summary: Homogenous, fully dense samples free of graphene were obtained by using insulating Al2O3 paper during reactive SPS. Isolated SPS had the main advantages of short dwell time (30 s after a degassing step of 6 min) and uniform distribution of fine TiB2 grains over the reactive hot press and SPS processes, respectively.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Muhammad Asif Hussain, Ehsan Ul Haq, Iram Munawar, Adnan Maqbool, Mohsin Saleem, Muhammad Asif Rafiq, Aqil Inam, Abbas Saeed Hakeem
Summary: This study focuses on the development of functionally graded materials (FGMs) for biomedical applications. By varying the sintering temperature and incorporating nanoparticles, the researchers were able to fabricate fully-densified FGMs based on hydroxyapatite and AISI 316L stainless steel. The addition of nanoparticles improved the physical and mechanical properties of the FGMs, making them comparable to standard materials for bone prostheses.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Divyanand Kumar, Dinesh Kumar, Anand Mukut Tigga, Deep Sagar
Summary: In this research, Al-B4C functionally graded materials (FGMs) with a continuously gradient distribution of B4C in an aluminum matrix were fabricated using a novel method of sound-wave-assisted vibrational casting methodology. The influence of B4C on the microstructure and properties of the Al-B4C FGMs was investigated. The results showed good gradient changes in the microstructure and variations in micro-hardness in samples fabricated in different locations. This study provides flexibility in controlling reinforcement dispersion in a molten metal bath to obtain the desired microstructure of FGMs.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Ceramics
Francisco L. Cumbrera-Hernandez, Jesus Lopez-Arenal, Bibi Malmal Moshtaghioun, Angel L. Ortiz, Diego G. Gomez-Garcia
Summary: A model is developed in this study to accurately determine the crystallographic occupancies in B4C ceramics. The model is used to compute the crystal structure of B4C in maximum and minimum disorder states and can be applied to other ceramics with similar problems and complex systems.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Xiaoqing Zhao, Ji Zou, Wei Ji, Aiyang Wang, Qianglong He, Zhengang Xiong, Weimin Wang, Zhengyi Fu
Summary: In this study, homogeneous distribution of whiskers in B4C ceramics was achieved by freeze drying B4C-SiCw powder mixtures dispersed by cellulose nanofibrils. The incorporation of SiCw particles resulted in improved hardness, strength, and toughness of the final ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Ian Postuma, Patrizia Sommi, Agostina Vitali, Diyun Shu, Greta di Martino, Laura Cansolino, Cinzia Ferrari, Vittorio Ricci, Chiara Magni, Nicoletta Protti, Setareh Fatemi, Umberto Anselmi Tamburini, Silva Bortolussi, Saverio Altieri
Summary: In Boron Neutron Capture Therapy, the effectiveness relies on the concentration and distribution of boron within the tumour cells. This study demonstrates a technique to colocalize alpha particles and lithium ions with cells, using a neutron autoradiography technique. This method combines images of cells with tracks produced in a solid-state nuclear track detector.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Physics, Applied
Angelica Baldini, Michele Petrecca, Claudio Sangregorio, Umberto Anselmi-Tamburini
Summary: The study found that highly pure nanostructured ferrite particles can be synthesized using a simple method and densified through high-pressure field-assisted sintering to obtain materials with complex microstructures. During sintering, there was no change in phase composition, and a high degree of densification while maintaining nanometric crystallite size was achieved by using high uniaxial pressure with relatively low sintering temperatures and times.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Roberta Dal Magro, Agostina Vitali, Stefano Fagioli, Alberto Casu, Andrea Falqui, Beatrice Formicola, Lorenzo Taiarol, Valeria Cassina, Claudia Adriana Marrano, Francesco Mantegazza, Umberto Anselmi-Tamburini, Patrizia Sommi, Francesca Re
Summary: Vascular oxidative stress exacerbates the progression of Alzheimer's disease, but antioxidant compounds like cerium oxide nanoparticles may help improve vascular function. CNP restored ROS levels and increased uptake in brain cells exposed to A beta, potentially offering protection against neurotoxicity.
Article
Biology
Ian Postuma, Sara Gonzalez, Maria S. Herrera, Lucas Provenzano, Michele Ferrarini, Chiara Magni, Nicoletta Protti, Setareh Fatemi, Valerio Vercesi, Giuseppe Battistoni, Umberto Anselmi Tamburini, Yuan Hao Liu, Leena Kankaanranta, Hanna Koivunoro, Saverio Altieri, Silva Bortolussi
Summary: Novel criteria of clinical potential and safety have been introduced to evaluate neutron beams for BNCT, showing that even beams rejected by traditional physical measurements can have comparable clinical performance.Radiobiological and dosimetric criteria are effective tools in selecting safe and effective beams for patient treatment, even when standard physical recommendations are not met.
Article
Physics, Applied
Xuan Li, Ying Tu, Simona Pace, Umberto Anselmi-Tamburini, Joe Briscoe
Summary: The core-shell structure with ZnO cores effectively suppresses surface defects, particularly in ZnO synthesized in an OH- rich environment, where the TiO2 shell coating has a stronger passivation effect on the surface defects. Both PL and XPS results confirm the effectiveness of the TiO2 shell coating in passivating surface defects of ZnO nanostructures.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
S. Cisternino, E. Cazzola, H. Skliarova, J. Amico, M. Malachini, G. Gorgoni, U. Anselmi-Tamburini, J. Esposito
Summary: The study explored using Spark Plasma Sintering (SPS) technique to manufacture yttrium solid targets for efficient Zr-89 radioisotope production. Results showed that the production yield and quality of Zr-89 obtained from SPS manufactured targets were comparable to those from standard yttrium foil targets.
NUCLEAR MEDICINE AND BIOLOGY
(2022)
Article
Nuclear Science & Technology
Gabriele Parisi, Andrea Pola, Davide Bortot, Davide Mazzucconi, Giovanni D'Angelo, Chiara Magni, Ian Postuma, Silva Bortolussi, Nicoletta Protti, Saverio Altieri, Umberto Anselmi Tamburini, Valerio Vercesi, Stefano Agosteo
Summary: This paper presents a novel neutron spectrometer called ACSpect, which consists of a two-stages monolithic silicon telescope detector and an organic scintillator. It is capable of high-resolution measurements in the energy range of 250keV-4MeV.
RADIATION MEASUREMENTS
(2022)
Letter
Multidisciplinary Sciences
Martina Fracchia, Mauro Coduri, Maela Manzoli, Paolo Ghigna, Umberto Anselmi Tamburini
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Giorgia Pellavio, Patrizia Sommi, Umberto Anselmi-Tamburini, Maria Paola DeMichelis, Stefania Coniglio, Umberto Laforenza
Summary: This study analyzed the effect of cerium oxide nanoparticles (CNPs) on the functioning of aquaporins (AQPs). The results showed that CNPs increased the diffusion of hydrogen peroxide (H2O2) in cells, especially through AQP8. These findings suggest that CNPs could potentially be used as a pharmaceutical agent in diseases involving oxidative stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
M. Fracchia, D. Callegari, M. Coduri, U. Anselmi-Tamburini, M. Manzoli, E. Quartarone, P. Ghigna
Summary: Various high and medium entropy oxides with rock salt structures were prepared and studied as anodes for lithium batteries. The reaction mechanisms of these systems are complex and involve conversion reactions. The capacity and reduction potential of these materials depend on the number of components and microstructure of the initial materials. However, the dependence cannot be rationalized based on simple stability logic.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Biology
Agostina Vitali, Maria Paola Demichelis, Greta Di Martino, Ian Postuma, Silva Bortolussi, Andrea Falqui, Chiara Milanese, Chiara Ferrara, Patrizia Sommi, Umberto Anselmi-Tamburini
Summary: In this study, multifunctional boron carbide nanoparticles stabilized with polyacrylic acid (PAA) and a gadolinium (Gd)-rich solid phase were synthesized and their biological activity was evaluated. The incorporation of a fluorophore (DiI) allowed for confocal microscopy imaging of the nanoparticles. Novel correlative microscopy techniques were employed to analyze the interaction and activity of these fluorescent Gd-containing B4C nanoparticles (FGdBNPs) with cultured cells. The results indicate that these nanoparticles have the potential to achieve high boron concentration in tumor cells.
Article
Nanoscience & Nanotechnology
Ketan Lohani, Himanshu Nautiyal, Narges Ataollahi, Umberto Anselmi-Tamburini, Carlo Fanciulli, Paolo Scardi
Summary: The effect of Ag doping on the thermoelectric properties of Cu2SnS3 (CTS) was investigated. Various Cu2Ag(x)Sn(1-x)S3 (0.05 <= x <= 0.25) samples were synthesized and their structural and transport properties were studied. The x = 0.15 sample showed a 10-fold higher power factor than the undoped CTS, and both the x = 0.125 and x = 0.15 samples exhibited the highest zT value of 0.8 at 723 K. The increase in thermal conductivity of Cu2Ag(x)Sn(1-x)S3 samples with Ag substitution was found to be caused by the reduction in scattering of phonons due to the incorporation of Ag. Formation energy calculations revealed the reason for the structural transformation of CTS and similar diamond-like structures towards high symmetry polymorphs by external doping. The increase in zT value was attributed to the optimization of the band gap and the weighted mobility.
ACS APPLIED NANO MATERIALS
(2023)
Article
Electrochemistry
Michele Montalbano, Daniele Callegari, Umberto Anselmi Tamburini, Cristina Tealdi
Summary: Transition metal-based sodium fluoro-perovskite materials were investigated as cathode materials for Na-ion batteries. The study combined experimental and computational techniques to investigate structures, defects, and intercalation properties. The results showed the possibility of modulating the sample's morphology and highlighted the correlation between structure and computational data for controlling both ionic and electronic conductivity.
Article
Materials Science, Multidisciplinary
D. Callegari, M. Coduri, M. Fracchia, P. Ghigna, L. Braglia, U. Anselmi Tamburini, E. Quartarone
Summary: The ever-growing demand for high-capacity Li-ion batteries requires electrode materials that are environmentally friendly, Co-free, secure, and durable. In this study, a novel dual-doping strategy was proposed to design LiFexMn2-x-yTiyO4 (LFMT) as high-capacity cathode materials. The substitution of Mn with Fe and Ti suppressed the unwanted distortion and improved the capacity and stability of the batteries.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Physics, Multidisciplinary
C. Magni, M. Ferrarini, I. Postuma, N. Protti, S. Fatemi, C. Gong, U. Anselmi-Tamburini, V. Vercesi, G. Battistoni, S. Bortolussi
Summary: Boron Neutron Capture Therapy (BNCT) is a type of radiotherapy used to treat deep-seated tumors, targeting cancer cells using a borated drug before irradiating the patient with low-energy neutrons. This study presents neutron activation analysis of different aluminum fluoride powders for potential use in the Beam Shaping Assembly (BSA) material. Additionally, Monte Carlo calculations for out-of-field dosimetry are discussed, which are crucial for assessing the safety of clinical neutron beams in terms of dose absorption by surrounding organs.
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS
(2021)
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)
