Article
Nanoscience & Nanotechnology
Yi-dan Fan, Kun-kun Deng, Cui-ju Wang, Kai-bo Nie, Quan-xin Shi
Summary: Pure titanium particles reinforced Mg-6Zn-0.2Ca magnesium matrix composites were successfully fabricated and their mechanical properties were studied. The results showed that the titanium particles promoted dynamic recrystallization of the matrix alloy, refining the size of MgZn2 phases and resulting in high yield strength and ultimate tensile strength in the composite. However, the work hardening rate of the composite decreased during plastic deformation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
H. Wang, D. T. Zhang, G. H. Cao, C. Qiu
Summary: Friction stir processing technique can significantly refine the grain size of alloys, form specific grain orientations, and improve the ductility of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Shuang-Shuang Li, He Zhang, Fang Chang, Yu-Nan Fei, Shu-Qing Kou, Yong Shao, Qian-Qian Xuan, Xin Li, Feng Qiu
Summary: In this study, 50 vol% (TiC + TiB2)/Al composites with different alloy elements (Mg, Zn) were prepared and their effects on microstructure and mechanical properties were investigated. The addition of Mg resulted in the refinement of TiC and TiB2 particles and significant improvement in compressive strength. On the other hand, Zn only increased the yield strength through solid solution strengthening without obvious refining effect on ceramic particles.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zhong Ming Brendan Teo, Gururaj Parande, Vyasaraj Manakari, Manoj Gupta
Summary: The study demonstrated that by controlling temperature, magnesium alloys and nanocomposites with high zinc content can be fabricated, reducing the formation of secondary phases and improving physical and mechanical properties. The addition of SiO2 nanoparticles enhanced thermal stability and damping response, while the compressive yield strength, ultimate compressive strength, and fracture strain were similar for both the alloy and nanocomposite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
G. Anbuchezhiyan, B. Mohan, N. Senthilkumar, R. Pugazhenthi
Summary: In this study, aluminium metal matrix composite reinforced with hard silicon nitride (Si3N4) particles was experimentally synthesized using squeeze casting technique. The inclusion of Si3N4 significantly improved the mechanical behavior, corrosion resistance, and wear resistance of the synthesized composites, as observed through various tests. Scanning Electron microscope micrograph of worn surfaces revealed deep grooving associated with abrasive wear due to the presence of Si3N4.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Kang Wang, Zhiqin Lei, Zhongmiao Liao, Chenliang Tao, Yanglin Zhong, Zhiyu Wang, Lijuan Zhang, Wenfang Li
Summary: Stir casting is an effective method for dispersing ceramic particles in molten alloys to obtain high-performance metal matrix composites. This study investigates the effect of stirring speeds and feeding rates on the distribution of reinforcement particles in an aluminum matrix. Results show that a moderate stirring rate of 400 rpm achieves relatively uniform dispersion of precursor particles in the molten aluminum.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
L. Tharanikumar, B. Mohan, G. Anbuchezhiyan
Summary: This study investigates the microstructural and mechanical properties of nano-Si3N4-BN hardened Al-Zn-Mg alloy hybrid nanocomposites synthesized by a vacuum-assisted stir casting process. The results show that the reinforcing particles are uniformly distributed in the alloy matrix, and intradendritic grains are observed along the grain boundaries. The hybrid nanocomposites exhibit significantly enhanced tensile and compressive strength, as well as good corrosion resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Automation & Control Systems
Zhen Liu, Yangchuan Cai, Jie Chen, Jian Han, Zhiyong Mao, Minfang Chen
Summary: In this study, a novel Mg-Zn-Ca matrix composite reinforced with 1.0 wt.% MgO nanoparticles was prepared via high shear casting and friction stir processing (FSP). The FSP treatment significantly modified the microstructure and properties of the composites, resulting in a grain size reduction of 42% and a hardness increase of 40%. Particle strengthening was found to be more dominant than grain refinement in enhancing the properties of the composites.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jian Han, Xinya Chen, Zhen Liu, Shuang Zhang, Minfang Chen, Zhiyong Mao, Zhen Luo, Xi Zhang, Yinbao Tian, Yangchuan Cai
Summary: This study successfully optimized the microstructure of a magnesium-based composite through friction stir processing and improved the performance of the biomedical material. The treatment led to grain refinement and the formation of a basal texture, resulting in a reduced degradation rate. The high grain boundary density and uniform distribution of nanoparticles promoted the formation of a passivation film.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Mingzhe Bian, Xinsheng Huang, Yasumasa Chino
Summary: The research demonstrates a significant improvement in room temperature stretch formability of concentrated Mg-Al-Zn-Ca alloy sheets by increasing the final rolling temperature. Microstructural investigation reveals that the enhancement in formability is mainly associated with weakened basal textures.
Article
Metallurgy & Metallurgical Engineering
Tao Ying, Mingdi Yu, Yiwen Chen, Huan Zhang, Jingya Wang, Xiaoqin Zeng
Summary: This study investigates the mechanical properties and deformation mechanisms of an extruded Mg-Zn-Ca solid-solution alloy. The results show that the coaddition of Zn and Ca enhances the ductility of the Mg alloy by promoting the participation of non-basal slip systems.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
C. K. Dhinakarraj, N. Senthilkumar, K. Palanikumar, B. Deepanraj
Summary: In this study, a magnesium (AZ31) matrix composite reinforced with ceramic silicon nitride (Si3N4) particle was fabricated by vacuum stir casting. Microstructural analysis through optical microscope shows the presence and uniform distribution of Si3N4. The mechanical properties, such as microhardness and strength, are improved at the expense of reduced ductility with increasing Si3N4 content in the magnesium matrix. The porous nature and composite density also increase with higher weight % of Si3N4 particles. Corrosion tests demonstrate that the reinforcement limits corrosion by forming phases of Mg2Si intermetallics. The results suggest that these fabricated composites are suitable for many industrial applications where lightweight materials are required.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Fu-xiang Cao, Kun-kun Deng, Cui-ju Wang, Kai-bo Nie, Wei Liang, Jian-feng Fan
Summary: This study successfully prepared SiCp/2024Al composite sheets through two-step deformation, addressing formability issues and investigating the synergistic enhancement between CuAl2 phase and SiCp in mechanical properties. The two-step deformation significantly improved the uniform distribution of SiCp and CuAl2 phases, leading to enhanced performance of the composite materials.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Xiaoying Qian, Yuyang Gao, Zhihua Dong, Bin Jiang, Chao He, Cuihong Wang, Ang Zhang, Baoqing Yang, Changyong Zheng, Fusheng Pan
Summary: The micro addition of Ca effectively increases the strength and ductility of Mg-Zn-Ce alloy by enhancing alloying segregation at grain boundary. The addition of Ca leads to enhanced Zn segregation and co-segregation of Zn, Ce, and Ca. This is attributed to the decreased segregation energy and promoted diffusion process of Zn by Ca, which accelerates the thermodynamic and kinetic process of segregation. The controllable segregation at grain boundary, induced by Ca, contributes to the development of advanced magnesium alloys by stabilizing grain boundary, refining grain size, inhibiting dislocation mobility, improving strength, and enhancing grain boundary cohesion and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Anant Prakash Agrawal, Sunil Kumar Srivastava
Summary: This study examines the microstructural and mechanical properties of Al-Si3N4/TiB2 hybrid reinforced composites and investigates the impact of a novel combination of reinforcements on the mechanical behavior of hybrid metal matrix composites. The results show that HMMCs with 4 wt.% Si3N4 and 6 wt.% TiB2 particles demonstrate the highest strength, but at the cost of reduced ductility and impact resistance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
H. Jafari, F. Rahimi, Z. Sheikhsofla, M. Khalilnezhad
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2017)
Article
Thermodynamics
Hassan Jafari, Maryam Khalilnezhad, Saeed Farahany
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2017)
Article
Materials Science, Multidisciplinary
Leila Ghasemi, Hassan Jafari
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2017)
Article
Materials Science, Coatings & Films
Z. Shahri, S. R. Allahkaram, R. Soltani, H. Jafari
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Thermodynamics
Saeedeh Naghdali, Hassan Jafari, Mehdi Malekan
THERMOCHIMICA ACTA
(2018)
Article
Metallurgy & Metallurgical Engineering
H. Jafari, E. Heidari, A. Barabi, M. Dashti Kheirabadi
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2018)
Article
Materials Science, Ceramics
Leila Ghasemi, Hassan Jafari, Ali Jafari
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2018)
Article
Materials Science, Multidisciplinary
Hassan Jafari, Behrouz Mohammad Hassanizadeh
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2019)
Article
Metallurgy & Metallurgical Engineering
F. Doost Mohammadi, H. Jafari
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2018)
Article
Materials Science, Multidisciplinary
Mahdi Shiri, Hassan Jafari
Article
Metallurgy & Metallurgical Engineering
Z. Shahri, S. R. Allahkaram, R. Soltani, H. Jafari
JOURNAL OF MAGNESIUM AND ALLOYS
(2020)
Article
Materials Science, Multidisciplinary
Mohammad Reza Hadavi, Hamed Yarmohammad Touski, Hassan Jafari, Faramarz Ashenai Ghasemi
Summary: Friction stir processing (FSP) is applied to MIG welded aluminum alloy 5083-H111 plates in this study to improve the mechanical strength and corrosion fatigue life of the welded joints. Microstructural observations show large grain refinements after FSP, with the best results achieved using a rotational speed of 750 rpm.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Materials Science, Multidisciplinary
Hassan Jafari, Alireza Mazloumian, Mohammad Meghdad Fallah
Summary: The study indicates that increasing the Al2O3 content can enhance the hardness and wear resistance of magnesium alloy matrix composites. The extrusion temperature significantly affects the wear resistance of composites, with samples extruded at 350 degrees Celsius demonstrating the best wear resistance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Zanko Rouein, Hassan Jafari, Fatemehsadat Pishbin, Fatemeh Mohandes, Abdolreza Simchi
Summary: This research evaluated the in vitro bioactivity and biocompatibility of a novel composite coating based on PMMA biopolymer and BG particles on a magnesium-based implant. The study demonstrated a significant reduction in the corrosion rate of magnesium implants coated with the composite film, highlighting the potential of this approach for successful bone tissue engineering applications.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Z. Shahri, S. R. Allahkaram, R. Soltani, H. Jafari
Summary: The aim of this study is to investigate the surface properties of protective coatings applied for various periods on Mg-5Zn-0.4C (ZX504) magnesium alloy using the micro-arc oxidation (MAO) method and to study their corrosion behavior in a phosphate-buffered-saline solution. The coating time has a great effect on the surface characteristics, and the obtained MgO coatings have nano-crystalline structure. However, coatings obtained at higher process time are less protective due to the presence of large pores and cracks, resulting in enhanced diffusion of corrosive ions.
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)
