Article
Materials Science, Coatings & Films
Ke Zhan, Yalong Zhang, Lei Bao, Zheng Yang, Bin Zhao, Vincent Ji
Summary: By optimizing the laser quenching power and dual shot peening intensity, the residual stress and hardness of QT-700-2 were significantly increased, leading to an improvement in the uniformity of hardness distribution. The surface characteristics and wear resistance of the material were greatly enhanced.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Zhao Wang, Zhelun Ma, Tao Chen, Cheng Fan, Tianbiao Yu, Ji Zhao
Summary: The influence of different AWJP parameters on the surface integrity of Inconel 718 alloy was investigated. The results showed that pump pressure and standoff distance had the greatest impact on surface integrity, while flowrate and traverse speed had a smaller effect. The AWJP-treated workpiece formed a footprint width of 3.0-4.3 mm, with the maximum surface roughness occurring at a pump pressure of 300 MPa. The thickness of the stress layer was approximately 100-180 μm, and the maximum compressive residual stress was larger than 1100 MPa. Pump pressure had a significant effect on microhardness, and the maximum hardness increased by more than 20%.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
M. Abeens, R. Muruganandhan
Summary: This study investigates the corrosion behavior of shot peened AA 7075 T651 in a 3.5% solution, revealing that shot peening can improve pitting corrosion resistance and enhance oxide layer formation on the alloy surface. The research shows that shot peening leads to a decrease in corrosion rate and an increase in resistance to pit formations, as observed through SEM and EDX analysis.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2021)
Article
Materials Science, Multidisciplinary
G. Muthukumaran, Arun Kumar Rai, Jaiprakash Gautam, P. Dinesh Babu, K. Ranganathan, K. S. Bindra
Summary: The effects of multiple laser shock peening (LSP) on the microstructure, residual stress, and mechanical strength of EN25 steel were investigated. The results showed that LSP treatment could increase compressive residual stress and hardness on the surface, as well as improve yield strength and ultimate tensile strength.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Optics
Lei Guan, Zexin Ye, Jiaxin Zhong, Yu Li, Yongkang Zhang
Summary: This study investigates the effects of laser shock peening (LSP) on the pitting corrosion behavior of austenite stainless steel in an acid chloride environment. The results show that LSP treatment improves the pitting corrosion resistance of 304L stainless steel, resulting in a higher pitting potential and a lower metastable pitting nucleation rate of larger pits. However, this augmented effect is only significant in the case of massive LSP impacts.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Boxin Wei, Jin Xu, Y. Frank Cheng, Jiajun Wu, Cheng Sun, Zhenyao Wang
Summary: The study showed that the laser shock peening method effectively enhanced the surface mechanical properties of pure copper, with the laser overlap percentage playing a key role in improving surface mechanical properties. A 50% overlap was optimal, with the surface hardness after laser shock peening improving by 47%.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Manufacturing
Jiantao Zhou, Xin Zhou, Hui Li, Jiawei Hu, Xu Han, Sheng Liu
Summary: In this study, the in-situ laser shock peening method is used for the first time to improve the surface quality and mechanical properties of L-DED-fabricated AlSi10Mg alloy. The results show that severe plastic deformation driven by the shock wave contributes to defect healing, and the maximum pressure plays a crucial role. Surface laser shock peening (SLSP) and layer-by-layer laser shock peening (LLSP) have positive effects on the densification, surface quality, microstructure, and mechanical properties of the samples. The LLSP treatment addresses the strength-ductility trade-off and achieves an excellent combination of strength and ductility through grain refinement, dislocation strengthening, and compressive residual stress.
ADDITIVE MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
Yandong Jing, Xuewei Fang, Yongliang Geng, Yusong Duan, Ke Huang
Summary: This study introduces in-situ interlayer Laser Shock Peening (LSP) during wire-arc directed energy deposition (wire-arc DED) to reduce porosity defects and improve mechanical properties of aluminum components. LSP generates high-density dislocations, allowing for grain refinement and creating a tight metallurgical bond between layers.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Ann Zammit, Marlon Attard, Prabhakaran Subramaniyan, Sebastian Levin, Lothar Wagner, Jack Cooper, Laurent Espitalier, Glenn Cassar
Summary: The current study investigates a novel hybrid surface modification technique to improve the surface integrity of Ti-6Al-4V alloy. Mechanical shot peening and physical vapour deposition were combined to create a tungsten-doped diamond-like carbon coating on the alloy surfaces. The mechanical shot peening increased surface roughness and improved bonding sites for the deposition process, while minimizing grain growth. The study found that subjecting the specimens to a specific temperature during coating deposition reduced dislocation densities and resulted in stress relaxation.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yan Wen, Yaya Wu, Lin Hua, Lechun Xie, Liqiang Wang, Lai-Chang Zhang, Weijie Lu
Summary: Shot peening was used to modify the surface microstructure and mechanical properties of (TiB + TiC)/Ti-6Al-4V titanium matrix composite. Transmission electron microscopy revealed the introduction of surface nanograins after shot peening, with smaller nanograins formed near the interfaces due to severe deformation between the matrix and reinforcements. The deformation of TiC was found to be more severe than that of TiB, affecting the distribution of dislocations in the composite. The compressive residual stress and hardness in the peened surface layer were improved, attributed to surface deformation, nanograins, and high dislocation density in the nanocrystal layer.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
K. Praveenkumar, S. Swaroop, Geetha Manivasagam
Summary: In this study, laser peening without protective coating was performed on stainless steel to investigate the effects on residual stress distribution, work hardening, surface roughness, phase transformation, and wettability. The results showed that multiple peening passes led to higher compressive residual stress, deeper work hardening depth, smaller grain size, and a transformation from hydrophilic to hydrophobic behavior.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Fidel Salas Vicente, Javier Carcel Carrasco, Raquel Fernandez Antoni, Juan Carlos Ferrero Taberner, Manuel Pascual Guillamon
Summary: This paper investigates the possibility of using the Hollomon-Jaffe parameter to predict the hardness of an alloy after treatment, finding a relationship between the parameter and final hardness dependent on initial hardness and lowest achievable hardness.
Article
Engineering, Mechanical
Okan Unal, Erfan Maleki, Ibrahim Karademir, Fazil Husem, Yusuf Efe, Turan Das
Summary: This study investigated the effects of different treatment methods on AISI 1050 material and found that two-stage operations can achieve high residual stress depth and magnitude on the surface. Grinding and re-shot peening treatments can significantly reduce surface roughness, and increasing shot peening intensity can greatly improve hardness.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Materials Science, Multidisciplinary
Qingze Xu, Yi Cao, Jin Cai, Jianfeng Yu, Chaorun Si
Summary: The study revealed that ultrasonic shot peening treatment significantly improved surface quality, increased surface micro-hardness, and enhanced tensile strength of the TC2 thin-sheet alloy. Therefore, the USP treatment method is a potential physical strengthening method for thin-walled parts at room temperature.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Physics, Applied
Tran Phap Dong, Nguyen Duc Toan, Nguyen Tien Dung
Summary: This study investigates the influence of heat treatment on the hardness and material structure of SKD61 steel. The relationship between hardness and tempering temperature was derived based on the results, allowing determination of appropriate process conditions for machining molds at high temperature. The recommended heat treatment process involves heating the steel to 1050(?)C, quenching in oil media, annealing at 580(?)C, and cooling in the same furnace. This process results in an average hardness of 52HRC and a stable steel structure for successful subsequent heat treatment processes.
MODERN PHYSICS LETTERS B
(2023)
Article
Materials Science, Multidisciplinary
Balachandar Rajagopal Krishnamoorthy, Senthil Kannan, Kalainathan Sivaperuman
Summary: An optically transparent organic single crystal of 2,3-Dimethyl-N-[2-(hydroxy) benzylidene] aniline (DHBA) was successfully prepared using slow evaporation solution growth method in methanol with dimensions up to 10 x 5 x 2 mm(3). Various analytical techniques revealed the crystal structure, functional groups, optical properties, and non-linear optical efficiency of DHBA, suggesting its potential for non-linear optical applications.
Article
Materials Science, Multidisciplinary
R. Hanumantharao, S. Kalainathan
Summary: Pure and picric acid-added KDP crystals were grown using slow evaporation technique, and their hardness, mechanical properties, and etching behavior were studied. Doped KDP crystals showed improved second-harmonic generation efficiency compared to pure KDP crystals.
BULLETIN OF MATERIALS SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
S. Anand, S. Kalainathan, T. V. Amrutha, K. Senthil, Manabu Yamada
Summary: A high-quality organic nonlinear single crystal of 2,3-dimethyl-N-[(E)-2,4,5-trimethoxy benzylidene] aniline (DTA) was successfully synthesized and grown using the slow evaporation technique. The crystal structure was confirmed by single-crystal X-ray diffraction, and various optical properties were analyzed. The DTA crystal exhibited potential for use in nonlinear optical device applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Crystallography
A. Muthuraja, G. Murugesan, U. Reeta Felscia, Beulah J. M. Rajkumar, S. Kalainathan, V Ratchagar
Summary: High quality organic single crystals of 4,4'-DMB were successfully grown using the Bridgman technique, showing single-phase formation without impurities and an optical bandgap of 2.7 eV. Vickers microhardness measurements indicated that the crystal belongs to the soft material category, and studies on laser damage threshold and Z-scan technique were conducted to analyze the optical nonlinear properties of the grown crystal.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Chemistry, Multidisciplinary
S. Suba Viveka, T. Logu, N. Ahsan, K. Asokan, S. Kalainathan, K. Sethuraman, Y. Okada
Summary: The impacts of electronic excitations from Au, Ag, and O ion beams on the properties of CGS thin films were studied. The irradiated films showed modifications in crystallinity, surface roughness, and optical properties. The Au-ion-irradiated CGS film exhibited the highest photocurrent and may be suitable for photovoltaic applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Karthikeyan Vijayan, Logu Thirumalaisamy, Run Fa Jonny Qiu, Myeongok Kim, S. P. Vijayachamundeeswari, Kalainathan Sivaperuman, Nazmul Ahsan, Yoshitaka Okada
Summary: CuGaS2 is a promising chalcopyrite semiconductor for thin-film photovoltaic devices. However, deposition at elevated temperatures results in sulfur desorption and the formation of defects. This study investigates the effect of Tellurium doping during deposition on crystallinity and optical properties. The results show improved crystallinity and electrical mobility with Te doping, and a decrease in the optical bandgap energy.
Article
Optics
A. Muthuraja, D. Bharath, G. Murugesan, D. Anbuselvi, S. Kalainathan
Summary: The optical properties and thermal characteristics of the organic single crystal Bioperine (BPN) were studied, and it was found to have high transparency and nonlinear optical parameters, making it suitable for optical switching applications in photonics.
OPTICS AND LASER TECHNOLOGY
(2022)
Review
Energy & Fuels
Karthikeyan Vijayan, S. P. Vijayachamundeeswari, Kalainathan Sivaperuman, Nazmul Ahsan, Thirumalaisamy Logu, Yoshitaka Okada
Summary: This review discusses the importance and innovations of thin-film-based solar cells as a sustainable energy source. It examines the physicochemical properties of thin-film materials deposited via spray pyrolysis and their application in solar cells. The review also analyzes the advancements and pros and cons of copper and non-copper thin film-based photovoltaics. Lastly, it provides insights into the future developments and recycling of thin-film based photovoltaics.
Article
Crystallography
Rajesh Dora Tamiridi, Rajendra Goud, Prabhakaran Subramaniyan, Kalainathan Sivaperuman, Anand Kumar Subramaniyan, Indrajit Charit, Srikant Gollapudi
Summary: Laser shock peening of cold rolled Nitinol generates tensile surface residual stresses and increases surface microhardness. However, at a certain depth, the peened material has lower hardness than the as-received material due to the change in austenitic phase fraction caused by laser interactions.
Article
Crystallography
Nandhini Krishnan, Kalainathan Sivaperuman
Summary: A new organic stilbazolium compound, 4-[2-(3-methoxy-phenyl)-vinyl]-1-methyl-pyridinium(+) iodide(-) (MMPI), was successfully synthesized and characterized. The crystal structure and cell parameters of MMPI were determined using single crystal X-ray diffraction analysis. The synthesized material was confirmed by NMR spectroscopy and FT-IR spectrum analysis. The optical properties and surface characteristics of the MMPI crystal were investigated using various techniques such as optical analysis, chemical etching analysis, AFM, SEM, and Hirshfeld surface analysis. The nonlinear optical parameters and chemical activity of the crystal were also evaluated.
Article
Engineering, Electrical & Electronic
Balachandar Rajagopal Krishnamoorthy, Kalainathan Sivaperuman, Anand Sekar, Senthil Kannan
Summary: Schiff base crystal of 2-Methoxy-N-[4-(dimethyl amino) benzylidene] aniline (2MDA) was synthesized through condensation reaction and optically good quality single crystals were obtained after 7 days of slow evaporation process. Various characterizations confirmed the formation of the title Schiff base, and comparisons with previous reports indicated the formation of the 2MDA crystal. The crystal showed transparency in the range of 480-1100 nm and emitted red light at 625 nm, making it suitable for optical and opto-electronic applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Anju Thomas, Logu Thirumalaisamy, Sridharan Madanagurusamy, Kalainathan Sivaperuman
Summary: In this study, SnO2 thin films were deposited through spray pyrolysis and tested for gas sensing at 27℃ (room temperature) towards different gases. The films showed consistently low response of approximately 1 when exposed to various VOCs. Hall measurements were used to determine the type, concentration, and mobility of charge carriers, which were found to hinder its performance at room temperature.
Article
Chemistry, Multidisciplinary
Raji Vinayagamoorthy, Muthurakku Usha Rani, Sivaperuman Kalainathan, Sekar Anand
Summary: A novel third-order stilbazolium derivative single crystal, 4-[2-(4-dimethyl amino-phenyl)-vinyl]-1-methyl-pyridinium bromide (DMSB), was successfully harvested using methanol as a medium, through slow evaporation. The crystal structure of DMSB was confirmed to be monoclinic with centrosymmetric fashion. The DMSB crystal showed potential applications in photonics devices, optical computing, optical switches, and optical limiting, due to its favorable characteristics such as good solubility, molecular structure, absorbance nature, band gap, photoluminescence, and third-order nonlinear susceptibility.
Article
Chemistry, Multidisciplinary
Karthikeyan Vijayan, Logu Thirumalaisamy, S. P. Vijayachamundeeswari, Kalainathan Sivaperuman, Nazmul Ahsan, Yoshitaka Okada
Summary: This study investigates the impact of intermediate band structuring on the efficiency of solar cells using vanadium-incorporated copper gallium sulfide telluride thin films prepared via a chemical spray pyrolysis route. The results show that V - 0.1-incorporated CGST exhibits promising potential as a thin-film absorber layer in solar photovoltaic technology, with increased efficiency attributed to a decrease in bandgap.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Thangavel Ravikumar, Logu Thirumalaisamy, Sridharan Madanagurusamy, Sivaperuman Kalainathan
Summary: This study investigated the gas sensing capabilities of Mn-doped zinc ferrite thin film nanorods and found that ZFM1 showed high sensitivity and good selectivity and recovery towards TMA. The 0.1 Mn doped ZnFe2O4 film exhibited greatly enhanced gas sensing properties. This research demonstrates the effectiveness of ZF thin films in detecting TMA in the atmosphere.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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)