Article
Nanoscience & Nanotechnology
Xiaolian Zhang, Pengcheng Zhai, Xiege Huang, Sergey Morozov, Bo Duan, Wenjuan Li, Gang Chen, Guodong Li, William A. Goddard
Summary: In this study, the intrinsic mechanical properties of thermoelectric clathrate Ba8Au6Ge40 were investigated using density functional theory calculations. The researchers found that the strength of Ba8Au6Ge40 varies depending on the loading direction, with {110}/<001> shearing and <110> tension being the weakest. The stretching and twisting of the Ge-Ge bonds cause distortion in the structure and ultimately lead to material failure.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Dhrubjyoti Baruah, S. Arjun Sreedhar, Saurabh Kumar Gupta, Satyam Suwas, R. Narasimhan
Summary: This study investigates the effect of temperature on the mixed-mode fracture response of a rolled AZ31 Mg alloy. Experimental results show that the fracture toughness Jc enhances by a factor of about 3.5, irrespective of mode mixity over the temperature range studied. The change in fracture mechanism from brittle cracking to ductile void growth and coalescence is observed as the temperature increases.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Yinan Lu, Yuan Qi, Michely Tenardi, Rong Long
Summary: This experimental study investigates mixed-mode crack propagation in thin sheet specimens of a soft silicone elastomer. The crack propagation trajectories and energy release rate were influenced by the inclined angle, showing that fracture toughness was approximately mode independent. The tangent direction of the crack trajectory was perpendicular to the direction of maximum principal stretch in the reference configuration.
EXTREME MECHANICS LETTERS
(2021)
Article
Energy & Fuels
Yu Suo, Yan-Jie Zhao, Xiao-Fei Fu, Wen-Yuan He, Zhe-Jun Pan
Summary: The study shows that the loading rate significantly affects the overall deformation process and fracture modes in deep shale. The fracture peak load of deep shale specimens increases with the increase in loading rate, while the maximum displacement decreases. The effective fracture toughness of deep shale gradually decreases with the increase in temperature. The deformation of prefabricated cracks follows a nonlinear slow growth-linear growth trend under different loading rates. Moreover, an increase in tension failure and a decrease in shear failure are observed as the loading rate increases.
Article
Engineering, Mechanical
Fei-Fan Li, Gang Fang
Summary: A comprehensive investigation is conducted on the ductile fracture of an extruded magnesium alloy at various stress states. The study finds that the fracture strain of the magnesium alloy varies with different stress triaxialities and the fracture mechanisms are influenced by second phase particles and deformation twins.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Shuai Xu, Xinwei Xiao, Haiming Zhang, Zhenshan Cui
Summary: Electrical-assisted forming technology can significantly improve the ductility of hard-deformable materials, weaken size effects, enhance mechanical responses, and improve deformation characteristics by inhibiting extension twinning in the early stages of deformation.
Article
Materials Science, Multidisciplinary
K. V. Vaishakh, R. Narasimhan
Summary: Crystal plasticity based finite element simulations were performed to study the mixed-mode notch tip fields of a basal-textured Mg alloy under plane strain conditions. The results showed that the notch orientation profoundly affected the distribution of equivalent plastic strain and hydrostatic stress, highlighting the importance of plastic anisotropy of Mg alloys.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Mechanics
Wen Liu, Zhi Li, Zheng Li
Summary: This study conducted mixed-mode I/II fracture tests on two types of glued laminated bamboo boards, and found that the thin-layer bidirectional-arranged glued laminated bamboo boards have better fracture toughness and higher resistance to tensile/shear loading compared to the thick-layer unidirectional-arranged laminated bamboo lumber.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Nanoscience & Nanotechnology
Z. K. Ji, X. G. Qiao, W. T. Sun, L. Yuan, F. G. Cong, G. J. Wang, M. Y. Zheng
Summary: The effects of bimodal microstructure on the tensile properties and fracture toughness of Mg-9Gd-4Y-0.5Zr alloys were investigated. The results showed that the bimodal grain structure exhibited better yield strength and plane strain fracture toughness compared to the fully dynamic recrystallized (DRXed) microstructure. The bimodal grain structure had a higher tensile strength due to hetero-deformation induced (HDI) strengthening effect and strong basal texture. In addition, it had a stronger strain hardening capacity and larger hardened region, leading to improved fracture toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Krishna Yaddanapudi, Brandon Leu, M. Arul Kumar, Xin Wang, Julie M. Schoenung, Enrique J. Lavernia, Timothy J. Rupert, Irene J. Beyerlein, Subhash Mahajan
Summary: This study investigated {(1) over bar 012} tensile twins terminating inside the grains of a deformed Mg-Y alloy using transmission electron microscopy. Crystallographic features of the terminating twins and associated slip structures were quantified and analyzed, with local stresses computed using crystal plasticity simulations. Basal < a > and < c + a > matrix glide were found to accommodate the plastic stresses near the terminating twins, with defect contrast consistent with lattice dislocations and twinning partials observed along the twin boundary. A dislocation reaction was proposed to establish the interrelationship between matrix glide and {(1) over bar 012} twinning in Mg-Y alloys.
Article
Engineering, Mechanical
Xinting Miao, Haisheng Hong, Jian Peng, Tao Ping, Fengfeng Bie, Chenyang Jiang
Summary: The mixed mode fracture behaviors of TC4 titanium alloy were systematically studied by finite element method, testing, and theoretical analysis. It was found that there is II-III coupling effect ahead of the crack tip for mixed mode crack, and three-dimensional stress intensity factors were defined and calculated based on this. Under I-II mixed mode loading, the crack exhibited a planar propagation state, and the deflection angle increased with the mode II component. The I-II mixed mode fracture of TC4 showed a brittle fracture mechanism, and the brittle fracture criteria were in agreement with test results with some conservatism. However, under I-III mixed mode loading, the crack exhibited a spatial propagation state, and the deflection angle firstly increased then decreased with the mode III component. This is because the fracture mechanism shifted from brittle to brittle-ductile mixed fracture mode as the mode III component increased. The brittle criterion had a good prediction on I-III mixed mode brittle fracture behavior, with a low enough mode III component. The conclusions in this paper are of great significance to the mixed mode fracture evaluation of TC4 titanium alloys.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2023)
Article
Construction & Building Technology
Sreekumaran Sreenath, Kaliyaperumal Saravana Raja Mohan, Gunasekaran Murali
Summary: This study investigates the effect of GGBS on the fracture toughness of RPCs under different fracture modes, and finds that incorporating GGBS and fibers can significantly improve the fracture toughness of RPCs.
Article
Nanoscience & Nanotechnology
Kai Zhang, Zhutao Shao, Christopher S. Daniel, Mark Turski, Catalin Pruncu, Lihui Lang, Joseph Robson, Jun Jiang
Summary: The compression of a commercial cast magnesium alloy at room and cryogenic temperatures showed that cryogenic deformation resulted in higher flow stress, higher strain hardening rate, and moderately reduced strain to failure compared to room temperature deformation. This was attributed to the increased fraction of finer twins and twin twin interactions at cryogenic temperatures, which was found to be more effective in hardening than dislocation density.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Koji Hagihara, Toko Tokunaga, Kazuki Yamamoto, Michiaki Yamasaki, Tsuyoshi Mayama, Takumi Shioyama, Yoshihito Kawamura, Takayoshi Nakano
Summary: The influence of the volume fraction of the LPSO phase on the strengthening mechanisms in Mg/LPSO two-phase extruded alloys was investigated. The increase in the LPSO phase volume fraction enhances the yield stress of the alloys, but the increase is not monotonous. There are two large gaps in the rate of increase in the yield stress, indicating changes in the strengthening mechanisms. The kink-band strengthening mechanism is effective even in alloys with a low volume fraction of the LPSO phase.
MATERIALS TRANSACTIONS
(2023)
Article
Chemistry, Physical
Guoqin Wu, Zhaocan Li, Jianmin Yu, Hongbing Hu, Yali Duan, Beibei Dong, Zhimin Zhang
Summary: The texture evolution mechanism of Mg-13.1Gd-3.9Y-2Zn-0.4Zr (wt%) alloys during reciprocating upsetting extrusion and subsequent heat treatment was investigated. The influence of deformation passes on texture weakening and deformation mechanism was discussed. The results showed that the basal texture intensity decreased with increased deformation passes and significantly decreased after T6 heat treatment. The anisotropy of the alloys was maintained after T5 treatment and eliminated after T6 treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
K. K Bindu, S. Rajbala, Girish Kumar, Anil K. Singh
Summary: This paper proposes a technique using directly coupled stacked patches to increase impedance bandwidth and reduce cross-polarization. By employing metallic shorting posts between the metallic patches, the stacked configurations achieve a bandwidth of 25.8% and a gain of 8.8 dBi with low cross-polarization levels. A symmetrically direct-coupled stacked design further suppresses cross-polar components, resulting in a bandwidth of 26.1% and a gain of 9.3 dBi.
IETE JOURNAL OF RESEARCH
(2023)
Review
Food Science & Technology
Avtar Singh, Ajay Mittal, Soottawat Benjakul
Summary: This article provides insights into the applications of chitosan and its derivatives in the food industry, specifically for enhancing shelf-life and antimicrobial activity.
FOOD REVIEWS INTERNATIONAL
(2023)
Article
Food Science & Technology
Ajay Mittal, Avtar Singh, Hui Hong, Soottawat Benjakul
Summary: Chitooligosaccharides (COS) prepared from shrimp shell chitosan using different concentrations of H2O2 or AsA/H2O2 redox pair were characterized. COS-RP produced by AsA/H2O2 redox pair showed higher antioxidant and antimicrobial activities compared to COS-HP, with lower degree of polymerisation and average molecular weight.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Horticulture
Sandhya Thapa, Kalyan Barman, Anil K. Singh
Summary: The study found that postharvest putrescine (PUT) treatment has significant effects on delaying senescence and maintaining quality of guava fruits. Among the different doses of PUT treatment, 1.0 mM was the most effective in reducing weight loss and decay of the fruits.
Article
Chemistry, Applied
Ajay Mittal, Avtar Singh, Soottawat Benjakul
Summary: The inhibitory effects of chitooligosaccharide-epigallocatechin gallate (COS-EGCG) conjugate on alpha-amylase were studied and found to be significant. The conjugate could reduce starch digestibility and could be used as a food additive with low glycemic index.
Article
Food Science & Technology
Avtar Singh, Kartik Sharma, Pornpot Nuthong, Soottawat Benjakul
Summary: In this study, the emulsifying properties of psyllium husk powder at various concentrations in natural actomyosin extracted from threadfin bream mince were investigated. The addition of psyllium husk powder at 1.25 g/100 mL and 2.50 g/100 mL resulted in increased emulsion activity and stability indexes. Furthermore, the gel properties and consumer acceptability of fish tofu with different levels of psyllium husk powder were examined.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Ajay Mittal, Avtar Singh, Hui Hong, Soottawat Benjakul
Summary: The aim of this study was to determine the optimum condition for preparing chitooligosaccharide-catechin conjugate (COS-CAT) liposomes using different stabilising agents. COS-CAT liposomes were prepared using soy phosphatidylcholine (SPC) and either glycerol or cholesterol, and their encapsulation efficiency, loading capacity, physicochemical characteristics, FTIR spectra, thermal stability, and structure were assessed. The results showed that COS-CAT loaded liposome stabilised by cholesterol (COS-CAT-CHO) exhibited higher stability, with the highest encapsulation efficiency and loading capacity, and the lowest zeta potential, polydispersity index, and releasing efficiency.
JOURNAL OF MICROENCAPSULATION
(2023)
Article
Food Science & Technology
Natchaphol Buamard, Avtar Singh, Bin Zhang, Hui Hong, Prabjeet Singh, Soottawat Benjakul
Summary: The quality of surimi gel can be improved by using protein cross-linkers, especially those from plant extracts like Duea ching fruit. The fruit extract, rich in phenolic compounds and calcium, can activate transglutaminase and enhance the gel's properties. Different media for the extraction of Duea ching were studied and its application in sardine surimi gel was investigated.
Article
Biotechnology & Applied Microbiology
Khurshid Ahmed Baloch, Avtar Singh, Khamtorn Pudtikajorn, Soottawat Benjakul
Summary: Enrichment of n-3 polyunsaturated fatty acids (PUFA) in skipjack tuna eyeballs oil (STEO) was investigated using lipases from different yeast strains. Among all lipases tested, Candida rugosa extracellular lipase (Cr-ECL) showed promising enrichment of EPA and DHA in STEO. RSM was used to optimize reaction conditions and resulted in a significant increase in DHA and EPA concentration in STEO. The established hydrolysis protocol successfully converted fish oil from tuna waste to valuable fish oil enriched with n-3 fatty acids.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Food Science & Technology
Avtar Singh, Saumya Mehta, Umesh Patil, Pornpot Nuthong, Soottawat Benjakul
Summary: The effects of adding hyperoside (HyS) at various levels (0%-4%; w/w) on the textural, rheological, structural, and sensory properties of threadfin bream surimi were investigated. The addition of 1% and 2% HyS resulted in surimi gel with the highest breaking force and deformation. HyS also improved the water-holding capacity and increased hardness, springiness, gumminess, and chewiness of the gel. The addition of HyS enhanced the connections between surimi proteins and improved the gel network.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Avtar Singh, Umesh Patil, Ajay Mittal, Prabjeet Singh, Anuj Tyagi, Soottawat Benjakul
Summary: The gelling behaviors of partially purified myofibrillar proteins (PPMP) extracted from Indian mackerel (IM) and threadfin bream (TB) were compared at different heating temperatures. The results demonstrated that IM-MP exhibited lower turbidity, surface hydrophobicity, and disulfide bond content compared to TB-MP. The amino acid profile showed no significant difference between the two species, except for lysine and glutamine. Structural analysis confirmed these differences, and the transmission analysis revealed lower aggregation and crosslinking ability of IM-MP. Therefore, the gelling behavior of IM-MP was poorer compared to TB-MP.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Ajay Mittal, Avtar Singh, Bin Zhang, Qiancheng Zhao, Soottawat Benjakul
Summary: The inhibitory effects of chitooligosaccharide (CHOS) conjugates, including CHOS-catechin (CHOS-CAT), CHOS-epigallocatechin gallate (CHOS-EGCG), and CHOS-gallic acid (CHOS-GAL), on Pacific white shrimp cephalothorax polyphenoloxidase (PPO) were studied. CHOS-CAT showed the strongest inhibitory activity against PPO and exhibited mixed-type inhibition. Molecular docking analysis revealed that CHOS-CAT interacts with various amino acid residues near the active site of PPO. Therefore, CHOS-CAT could serve as an anti-melanosis agent to prevent discoloration in crustaceans.
Article
Fisheries
Wattana Temdee, Avtar Singh, Hui Hong, Bin Zhang, Ahmet Faruk Yesilsu, Soottawat Benjakul
Summary: The effects of epigallocatechin gallate (EGCG) at 200 or 400 ppm on the quality changes of cooked Harpiosquillid mantis shrimp (Harpiosquilla raphidea) (CHMS) meat subjected to varying freeze-thaw cycles (F-T-C; 0, 1, 3, and 5) were studied. With increasing F-T-C, the CHMS meat deteriorated to a higher extent, indicated by increased exudate loss, tougher texture, and higher microbial counts. The addition of EGCG could dose-dependently retard these changes, as well as prevent microbial growth and lipid oxidation. The alterations in disulfide bond content and surface hydrophobicity of CHMS added with EGCG were more pronounced with higher EGCG concentration.
TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2023)
Review
Food Science & Technology
Ajay Mittal, Avtar Singh, Jirayu Buatong, Jirakrit Saetang, Soottawat Benjakul
Summary: Chitooligosaccharide (CHOS), a depolymerized chitosan, has various applications as alternative additives or bioactive compounds in food and biomedical fields. Derivatives of CHOS with enhanced bioactivities, such as anti-inflammatory, anti-obesity, neuroprotective, and anti-cancer effects, have been prepared and characterized. These CHOS derivatives also exhibit improved antibacterial and antioxidant activities, which are beneficial for shelf-life extension and food safety.
Meeting Abstract
Oncology
S. J. Ma, M. Khan, J. Gill, S. Santhosh, U. Chatterjee, A. J. Iovoli, M. K. Farrugia, K. E. Wooten, V. Gupta, R. Mcspadden, H. Yu, M. Kuriakose, M. Markiewicz, W. L. Hicks, M. E. Platek, M. Seshadri, A. D. Ray, E. Repasky, A. K. Singh
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
(2022)
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)
