Article
Materials Science, Multidisciplinary
Jinlong Yang, Jinyan Cui, Junyi Cheng, Lei Xiao, Jianzheng Guo
Summary: In this study, the microstructure, tensile property, and creep performance of a novel powder metallurgy nickel-based superalloy FGH4113A were systematically investigated. The experimental results demonstrated that this alloy exhibited high yield strength and ultimate tensile strength, and maintained good performance at high temperatures. The excellent tensile property was attributed to the precipitation strengthening mechanism.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Yu Sik Kong, Muralimohan Cheepu, Dong Gyu Kim
Summary: The microstructure formation of nickel-based superalloys significantly affects their mechanical properties, especially the presence and characteristics of the γ' phase. This study investigates the influence of heat treatment conditions on the microstructural and mechanical properties of Udimet 720. The results show that thermal exposure alters the microstructure, leading to a deterioration in the tensile and creep-rupture properties of the alloy.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Engineering, Mechanical
Huitao Chen, Wei Li, Wei Chen, Jian Chen, Shengde Zhang
Summary: This study investigated the cyclic responses and remnant tensile and creep behaviors of AISI 321 under different prior creep-fatigue exposures. The results showed that the cyclic responses exhibited initial hardening followed by softening. The remnant properties were improved when the prior creep-fatigue lifetime fraction was below 50% due to pinning effects and increased twining boundary fractions. However, degraded remnant properties were observed when the lifetime fraction further increased to 80% as a result of de-twinning and carbide coarsening.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Materials Science, Multidisciplinary
Jin Dan, Long Haoyue, Han Gaofeng, Jin Kai
Summary: Tensile experiments on the Haynes230 nickel-based alloy were conducted at different temperatures, and the microscopic mechanism of the alloy's tensile deformation behavior at high temperatures was investigated using electron backscattered diffraction (EBSD) technique. The results showed that the alloy has high resistance to plastic deformation up to 800 degrees C. At 650 degrees C, a significant dynamic strain aging (DSA) phenomenon was observed, with similar DSA effects at 700 and 800 degrees C, and the weakest DSA effect at 760 degrees C. The strengthening effect of DSA allows the alloy to maintain high strength at 650 degrees C, and the tensile strength at 800 degrees C does not decrease much compared to that at 760 degrees C. EBSD results revealed that deformed twins appeared near the fracture at room temperature, with <111> grain orientation dominating. At 650 degrees C, the <111> orientation near the fracture became more pronounced, with bent and deformed grain boundaries increasing resistance to dislocation movement. With increasing temperature, dynamic recrystallization grains appeared near the fracture in the intergranular and intracrystalline areas.
RARE METAL MATERIALS AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Qingling Li, Huarui Zhang, Ying Cheng, Fuwei Wang, Yanyun Sun, Hu Zhang
Summary: Microalloying with rare earth Y in IN713C alloy leads to purification, mechanical property improvement, and microstructure modification. The addition of Y reduces impurity elements and increases the strength and plasticity of the alloy. The improvement in properties is attributed to the refinement of microstructure and modification of carbide morphology.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Abdul Malik, Yangwei Wang, Cheng Huanwu, Tahir Mehmood Bhatti, Faisal Nazeer
Summary: The study investigated the superplasticity of fine-grained extruded ZK61 magnesium alloy at elevated temperatures, showing high elongation to fracture and a governing deformation mechanism of intra-granular slip.
RESULTS IN PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Zichao Peng, Jinwen Zou, Yu Wang, Lei Zhou, Yue Tang
Summary: This study investigated the creep properties of FGH96 superalloys with different microstructures and found a complex relationship between creep properties and microstructures. The main creep deformation mechanism was identified as microtwinning, with Sigma 3 twin boundaries having a positive effect on creep resistance. The higher dislocation density around small-angle boundaries was found to be the main reason for increased creep rate in subsolvus superalloys.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
H. Y. Song, M. C. Lam, Y. Chen, S. Wu, P. D. Hodgson, X. H. Wu, Y. M. Zhu, A. J. Huang
Summary: This study investigates the effects of post heating strategy on the microstructure and grain size of a nickel-based superalloy produced by selective laser melting (SLM), aiming to improve its high temperature creep resistance. Unconventional two-step heat treatments are found to lead to substantial grain growth, particularly at a specific temperature. The newly optimized two-step heat treatment scheme extends the creep fracture life and reduces secondary creep rates for the SLM-processed superalloy.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yachun Wang, Xiang Liu, Daniel J. Murray, Fei Teng, Wen Jiang, Mukesh Bachhav, Laura Hawkins, Emmanuel Perez, Cheng Sun, Xianming Bai, Jie Lian, Colin D. Judge, John H. Jackson, Robert G. Carter, Lingfeng He
Summary: Grain boundaries, as two-dimensional defects, play a significant role in the mechanical properties of polycrystalline metallic alloys. This study developed a method to fabricate micro-tensile specimens for quantifying the strength of individual grain boundaries. The results showed that the tensile strength of non-irradiated grain boundaries was estimated to be around 1.4 GPa, comparable to that of irradiated grain boundaries. Additionally, valuable insights into high-angle grain boundary deformation and fracture behavior were obtained.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Semanti Mukhopadhyay, Hariharan Sriram, Christopher H. Zenk, Richard DiDomizio, Andrew J. Detor, Robert W. Hayes, Gopal B. Viswanathan, Yunzhi Wang, Michael J. Mills
Summary: The development of high-temperature heavy-duty turbine disk materials is critical for improving the overall efficiency of combined cycle power plants. The use of an alloy development strategy involving strengthened coprecipitates shows promising performance, but the microstructure of the alloy needs to be optimized for better creep strength and rupture life.
Article
Materials Science, Multidisciplinary
Jiahao Cheng, Patxi Fernandez-Zelaia, Xiaohua Hu, Michael Kirka
Summary: This paper investigates the fatigue crack growth behavior of hybrid microstructure Haynes 282 fabricated via PBF-AM. The simulation results showed a consistent influence of grain structure and texture on crack propagation, as was seen in the experiment. The presented modeling approach will facilitate the development of accurate microstructure design in additive manufacturing.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Weiren Wang, Xue Jiang, Shaohan Tian, Pei Liu, Depeng Dang, Yanjing Su, Turab Lookman, Jianxin Xie
Summary: This study introduces a natural language processing pipeline to extract chemical composition and property data from scientific literature, facilitating analysis and prediction of superalloys using a data-driven model. The accuracy of predictions was verified through synthesis and characterization of alloys, and a web-based toolkit was provided as an online open-source platform.
NPJ COMPUTATIONAL MATERIALS
(2022)
Article
Physics, Fluids & Plasmas
Prasad Sonar, Hiroaki Katsuragi
Summary: This study experimentally investigates crack formation and decompaction-wave propagation in a vibrated powder bed consisting of 5 μm glass beads. The vibrated powder bed demonstrates three distinct phases under different vibration conditions: consolidation, static fracture, and dynamic fracture. Notably, when the powder bed is strongly vibrated, an upward wave propagation is observed in the dynamic fracture regime. An interesting finding is that in fine cohesive powders, the decompaction-wave propagation speed, normalized to gravitational speed, is independent of the vibration strength. This suggests that the wave propagation speed is influenced by the balance between gravity and cohesion effect rather than vibration strength. The universality of the wave propagation phenomenon in coarser and low-density granular powders is also explored.
Article
Nanoscience & Nanotechnology
Qing Yuan, Zhongbo Li, Qingxiao Zhang, Guang Xu
Summary: In this study, a new architecture of ultrafine grain (UFG) steel with coarsen bimodal size distribution was achieved through high-temperature short time annealing process. The mechanical properties of the UFG steel, including tensile strength and elongation, were enhanced without sacrificing much strength, thanks to the formation of intragranular Nb(C, N) particles. These particles stimulated and accumulated geometrically necessary dislocations (GNDs), which counteracted the strength decrease caused by coarsen ferrite grains.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Wei Li, Houjun Qin, Shunpeng Zhu, Guowei Bo, Tao Sun, Dapeng Jiang, Hui Chen, Xulong Peng, Jian Chen, Jianjun He, Song Ni, Canjuan Xiao, Shengde Zhang, Anqi Chen
Summary: A self-healing coating consisting of Al2O3-13TiO(2) layer, TiC layer, and NiCrAlY layer was studied for improving the mechanical properties of 321 steel. The coating exhibited enhanced strength due to dislocation strengthening, precipitation strengthening, and the self-healing behavior resulting from the reaction with oxygen.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)
Article
Biophysics
N. M. Umesh, J. Antolin Jesila, Sea-Fue Wang, K. S. Shalini Devi, M. Govindasamy, Asma A. Alothman, Razan A. Alshgari
Summary: This study reported the novel preparation of selenium nanorods doped cobalt oxide nanoflowers encapsulated with graphene oxide nanocomposite, which exhibited excellent electrochemical detection performance for dimetridazole. The nanocomposite showed promising catalytic reduction activity for dimetridazole and can be applied for clinical sample analysis in biomedical field.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Environmental Sciences
J. Antolin Jesila, N. M. Umesh, Sea-Fue Wang, G. Mani, Asma A. Alothman, Razan A. Alshgari
Summary: This study successfully synthesized a novel Bi2MoO6 nanostructure using a simple method and developed a sensor for detecting 4-cyanophenol through electrochemical technique. The sensor showed good stability, repeatability, and the ability to accurately and quickly detect the target compound.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Inorganic & Nuclear
Balasubramanian Sriram, A. Sathiyan, Sea-Fue Wang, E. Elanthamilan, Xavier Benadict Joseph, Jeena N. Baby, J. Princy Merlin, J. Christy Ezhilarasi
Summary: A highly porous sponge like cobalt oxide decorated Bauhinia vahlii dry fruits derived activated carbon composite (Co3O4@BVFC) was synthesized by hydrothermal method and tested as electrode for supercapacitor applications. The electrode displayed a specific capacitance value of 653 F/g at 1 A/g and showed 91% of capacitance retention even after 8000 GCD cycles, demonstrating its suitability as an electrode material for supercapacitors.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Sea-Fue Wang, Bo-Cheng Lai, Yung-Fu Hsu, Chun-An Lu
Summary: The as-quenched melts of three CaO-B2O3-SiO2 compositions were investigated for their dielectric and structural properties. The CBS-1 glass-ceramic exhibited the lowest CTE, dielectric constant, and highest dielectric loss attributed to the presence of quartz, while CBS-2 and CBS-3 presented relatively high CTEs and dielectric constants due to beta-CaSiO3 as the major phase. The increase in CaO content led to the relaxation of the structure and low thermal conductivity in CBS-2 and CBS-3.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Balasubramanian Sriram, Jeena N. Baby, Yung-Fu Hsu, Sea-Fue Wang, Mary George
Summary: Fungicides play a vital role in agriculture for food production, but their excessive use can pose ecological threats. Electrochemical sensors offer superior characteristics for identifying and monitoring hazardous substances. The synthesized LaV/h-BN composite shows excellent performance in carbendazim detection.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Jeng-Ting Tsai, Sea-Fue Wang, Yung-Fu Hsu
Summary: A low-temperature planar solid electrolyte oxygen generator (SEOG) based on a (Bi1.50Y0.50)(0.98)Zr0.04O3+delta (BYO)/Bi1.71Nb0.25Ba0.04O3+delta (BBNO) dual-layer electrolyte membrane was developed in this study, showing high oxygen-ion conductivity and hermetic performance at 550 degrees Celsius, but experiencing rapid degradation of oxygen production at high current densities.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Engineering, Environmental
Jeena N. Baby, Balasubramanian Sriram, Sea-Fue Wang, Mary George
Summary: Antibiotic pollution has raised global concerns, leading to the need for new analytical protocols to monitor and reduce the environmental impact of pharmaceutical products. The study introduces a novel hydrothermal synthesis method for the detection of sulfadiazine, enhancing the detection performance of the sensor.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Cheng-Wei Chang, Jiann-Shing Shieh, Glemarie C. Hermosa, An-Cheng Aidan Sun, Po-Kai Chiu, Donyau Chiang, Chi-Yu Huang, Hsi-Chuan Lu, Sea-Fue Wang
Summary: This study investigated the magnetic properties and microstructure of L1(0) MnGa thin films deposited at different substrate temperatures. The onset of the hard magnetic phase was found to be at 325 degrees C, with an enhancement in properties like saturation magnetization and coercivity as the substrate temperature increased. Results also showed an increase in crystal size and surface roughness with increasing substrate temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Analytical
Periyannan Kaleeswarran, Balasubramanian Sriram, Sea-Fue Wang, Jeena N. Baby, Ayyakannu Arumugam, Anwar L. Bilgrami, Syed A. Hashsham, Futoon Abdullah Sayegh, Chia-Jyi Liu
Summary: In this study, doping In3+ ions into CuBi2O4 nanoparticles significantly enhanced the electrochemical activity for detecting CPZ. The modified electrode showed improved catalytic ability, wider detection range, lower detection limit, and higher sensitivity for CPZ determination. Real sample analysis confirmed the feasibility of using In3+-CuBi2O4 for selective CPZ detection.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Subramaniyan Vinoth, M. Govindasamy, Sea-Fue Wang, Asma A. Alothman, Razan A. Alshgari
Summary: Efficient electrochemical sensor was developed for sensitive detection of food toxic chemicals, particularly organo arsenic compound roxarsone. The sensor utilized rose-like tetragonal lanthanum molybdates as a modified electrode, which showed enhanced detection of ROX with low detection limit and good stability in neutral supporting electrolyte.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Subramaniyan Vinoth, Mani Govindasamy, Sea-Fue Wang, Asma A. Alothman, Razan A. Alshgari
Summary: The electrocatalyst modified electrode showed enhanced detection performance for SFZ drug by selective adsorption and electrostatic attraction. The modified sensor achieved nanomolar detection limit in 0.05 M phosphate buffer (pH = 7.0) with differential pulse voltammetric method, demonstrating great stability and reproducibility.
Article
Acoustics
Mani Govindasamy, Sea-Fue Wang, Albandary Almahri, U. Rajaji
Summary: The ultrasonic-enhanced surface-active bismuth trisulfide based core-shell nanomaterials showed efficient performance as a modified electrode material for constructing a highly sensitive antibiotic sensor. The electrocatalyst of Bi2S3@GCN nanocomposites was significantly expanded for electrochemical applications, showing outstanding selectivity, stability, and reproducibility in real samples.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Electrochemistry
Kumar Gokulkumar, Ashok K. Sundramoorthy, Sea-Fue Wang, A. Harikrishnan, Razan A. Alshgari
Summary: The research focuses on the electrochemical steadfastness of the antimicrobial sulfathiazole drug and its constructed detection approach, using yttrium sulfide nanoparticles/graphitic carbon nitride heterostructure. The modified drug sensor displays higher sensitivity, wider linear-range responses, lower limit of detection, and high selectivity, making it suitable for real sample detection with potential real-world applications.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
N. M. Umesh, J. Antolin Jesila, Sea-Fue Wang, Mani Govindasamy, Razan A. Alshgari, Mohamed Ouladsmane, I. V. Asharani
Summary: The zinc oxide-cobalt oxide capped on carbon nitride nanocomposite prepared via hydrothermal assisted sonochemical synthesis is effective in detecting the anti-cancer drug flutamide, showing good sensitivity and detection performance. It is suitable for analyzing biological samples such as urine and blood serum.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Balasubramanian Sriram, Jeena N. Baby, Sea-Fue Wang, Mary George, Xavier Benadict Joseph, Jeng-Ting Tsai
Summary: The study introduces an electrocatalyst for the effective detection of CQ, utilizing unique flower-like manganese cobaltite (MCO) structures anchored with sulfur-doped reduced graphene oxide (S-rGO). The material shows excellent electrochemical properties, demonstrating its potential as an efficient electrocatalyst for practical analysis and monitoring of real samples.
ACS APPLIED ELECTRONIC MATERIALS
(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)
