Article
Materials Science, Multidisciplinary
Shuohong Gao, Xingchen Yan, Cheng Chang, Eric Aubry, Pengjiang He, Min Liu, Hanlin Liao, Nouredine Fenineche
Summary: The study prepared FeSiBCrC bulk soft magnetic alloy using selective laser melting technology, with high microhardness and good soft magnetic properties. The alloy is mainly composed of several crystalline phases, demonstrating the potential of fabricating bulk Fe-Si based amorphous soft magnetic alloys.
Review
Chemistry, Physical
Bryan Ramiro Rodriguez-Vargas, Giulia Stornelli, Paolo Folgarait, Maria Rita Ridolfi, Argelia Fabiola Miranda Perez, Andrea Di Schino
Summary: Additive manufacturing is used to process materials for electrical machine components with preserved or enhanced magnetic properties. Soft magnetic materials and composites are suitable for this manufacturing method. Additive manufacturing also allows for the use of high-entropy alloys which exhibit soft magnetic properties. This review evaluates the impact of different additive manufacturing technologies on microstructural changes, mechanical strengths, post-processing, and magnetic parameters of soft magnetic materials.
Article
Materials Science, Multidisciplinary
Xiaojun Shen, Fanbo Meng, Kwang Boon Lau, Pei Wang, Christopher H. T. Lee
Summary: In this study, a strong lambda-fiber texture was achieved in Fe-3.5wt%Si electrical steel using the LPBF process. The formation of amorphous precipitates in additively manufactured Fe-Si alloy was also reported for the first time.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
E. R. Lewis, M. P. Taylor, B. Attard, N. Cruchley, A. P. C. Morrison, M. M. Attallah, S. Cruchley
Summary: The oxidation behavior of Laser Powder Bed Fused (L-PBF) IN625 was studied in both as-built and heat-treated conditions. Recrystallization with twin grain boundaries and Nb-rich carbides decorated grain boundaries were observed after heat treatment. Exposure of L-PBF IN625 samples in laboratory air at 950 degrees C led to the formation of an external chromia scale and a near-continuous 6-phase layer at the scale/alloy boundary. The oxidation kinetics were similar to wrought IN625, but exhibited a more cubic behavior likely due to the formation of the 6-phase layer.
Article
Materials Science, Multidisciplinary
Sunil Pathak, Sanin Zulic, Jan Kaufman, Jaromir Kopecek, Ondrej Stransky, Marek Bohm, Jan Brajer, Libor Beranek, Ashish Shukla, Michal Ackermann, Filip Vele, Tomas Mocek
Summary: This study investigates the post-processing of additively manufactured stainless steel (SS) 304 L samples through laser shock peening (LSP). The results show significant improvements in compressive residual stresses and surface morphology. These findings contribute to a better understanding of the LSP mechanism in the post-processing of AM parts.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Y. Chew, Z. G. Zhu, F. Weng, S. B. Gao, F. L. Ng, B. Y. Lee, G. J. Bi
Summary: In this study, bulk Fe49.5Mn30Co10Cr10C0.5 interstitial multicomponent alloy was fabricated using laser aided additive manufacturing, showing excellent mechanical properties and cellular structures. Tensile tests demonstrated superior strength of the alloy at low temperatures, with almost no twinning observed in fractured samples.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Nan Kang, Mohamed El Mansori, Enhao Feng, Chunling Zhao, Yu Zhao, Xin Lin
Summary: This study compares the sliding wear behavior and microstructural evolution of Ti6Al4V samples prepared using forging, laser powder bed fusion (L-PBF), and laser directed energy deposition (L-DED). Both L-PBF and L-DED samples exhibit an nonequilibrium feature with lath/acicular alpha-Ti structure due to their high cooling rate. The L-DED sample shows the highest micro-hardness, while the wrought sample is harder at the nano-scale. The wrought sample also exhibits a lower wear rate and smaller surface plastic deformation compared to the L-DED and L-PBF processed samples.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
J. Karimi, C. Suryanarayana, I Okulov, K. G. Prashanth
Summary: This study investigated the effect of remelting on the microstructure and mechanical properties of Ti6Al4V materials fabricated using selective laser melting. The results showed that the number of remeltings significantly influenced the homogenization of the microstructure and mechanical properties of the materials, with an increase in hardness and ultimate tensile strength but a decrease in ductility observed with a higher number of melting steps.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Lixia Xi, Juncan Xu, Dongdong Gu, Lili Feng, Qiuyang Lu, Konda Gokuldoss Prashanth
Summary: In this study, 2195 Al-Li alloys and 2195-Ti/CeB6 composites were manufactured and compared at relatively high scan speeds to investigate the effect of Ti/CeB6 on crack inhibition and mechanical properties. The addition of Ti/CeB6 significantly refined the grains of the 2195 alloys, reducing their size by one order of magnitude. The 2195-Ti/CeB6 composites showed good laser processability without cracks at high scan speeds. The composites exhibited a high tensile strength of 300 MPa and elongation of 5.5%, increasing by 33% and 35% respectively compared to crack-free alloys at low scan speeds. This study provides references for crack suppression in laser additive manufacturing of high-crack-susceptibility metallic alloys.
Article
Engineering, Manufacturing
M. P. Haines, K. Carver, D. N. Leonard, A. Plotkowski, C. M. Fancher, R. R. Dehoff, S. S. Babu, F. List
Summary: The goal of printing soft magnetic Fe-Si steels using additive manufacturing is to achieve better performance through complex geometric designs and site-specific grain control. This study specifically explores the impact of scan strategy on the annealing response for thin wall geometries. The results show that the difference in annealing response is mainly attributed to the difference in grain size and density of high angle grain boundaries.
ADDITIVE MANUFACTURING
(2022)
Article
Thermodynamics
Guiru Meng, Yadong Gong, Jingdong Zhang, Lida Zhu, Hualong Xie, Jibin Zhao
Summary: Laser deposition manufacturing is a promising technology for high performance metal parts and has broad applications in aerospace and other fields. A multi-scale modeling approach is used to simulate the microstructure evolution during the process, and the effects of different process parameters are investigated. The simulated results are consistent with experimental observations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Qun Yu, Cunshan Wang, Zisong Zhao, Chuang Dong, Yu Zhang
Summary: By adjusting the content of Cr-like elements, the balance between the performance and weldability of Ni-based superalloys can be improved, reducing the impact of TCP phases on material performance and enhancing the overall performance of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Manufacturing
Saad A. Khairallah, Eric B. Chin, Michael J. Juhasz, Alan L. Dayton, Arlie Capps, Paul H. Tsuji, Kaila M. Bertsch, Aurelien Perron, Scott K. Mccall, Joseph T. Mckeown
Summary: Metal additive manufacturing technologies are receiving significant attention and there is a strong demand to develop methods that link the process science to printed parts performance and overcome inherent limitations. A high-fidelity model based on the multiphysics ALE3D code was developed to replicate the directed energy deposition process at the powder scale and capture the effect of powder incorporation process and flow rate on porosity. The model also explored the use of a ring laser beam profile to improve the solidification microstructure.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Sijia Liu, Minsuk Lee, Cheol Choi, Keesam Shin
Summary: In this study, the microstructure, microhardness, and porosity of additive manufactured parts fabricated by selective laser melting are investigated. The porosity of the finished product depends primarily on the energy density used and is more strongly influenced by the scanning speed than the applied laser power. The microstructure exhibits characteristic features attributed to different cooling rates near and far from the laser melting zone.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Reza Ghanavati, Erika Lannunziata, Ehsan Norouzi, Sara Bagherifard, Luca Iuliano, Abdollah Saboori
Summary: This study investigated the capability of the standard laser powder bed fusion process to produce SS316L-IN718 functionally graded materials with different designs. The analysis and discussion revealed the gradual evolution of the solidification structure, smooth distribution of constituent elements, and orientation and grain growth in the build direction. The gradient design with a 50 wt% mixed intermediate zone and optimum processing condition showed the best mechanical properties.
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)