Article
Materials Science, Multidisciplinary
Javad Mola, Guoqing Luan, Qiuliang Huang, Christiane Ullrich, Olena Volkova, Yuri Estrin
Summary: Discontinuous plastic flow due to dynamic strain aging in a Fe-13Cr-3.4Mn-0.47C metastable stainless steel was studied, with different mechanisms proposed for different temperature intervals. The study identified deformation-induced martensitic transformation and carbon diffusion as key processes in DSA at various temperatures.
Article
Engineering, Multidisciplinary
Liu CaiMing, Oluwadamilola Ogunmola, Li BingBing, Zheng Yiming, Chen Xu
Summary: This study investigated the influence of thermal aging on the ratcheting boundary of 316LN austenitic stainless steel, finding that the boundary slightly increases with thermal aging time, especially with a larger secondary ratio. RCC-MR standard was found to be more conservative compared to ASME, and it is suggested to choose the stage when the efficiency index V stabilizes for a more conservative and reasonable approach.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Erica Marcelino Freitas de Souza Silva, Glaucio Soares da Fonseca, Elivelton Alves Ferreira
Summary: Austenitic stainless steels are widely used for their excellent mechanical and corrosive properties, with 316L ASS known for its great weldability due to low carbon content. Selective dissolution is a significant issue, primarily caused by the significant difference in electrochemical potential between different phases leading to severe austenite corrosion.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
M. Tikhonova, A. Belyakov, R. Kaibyshev
Summary: The effect of aging at 923 K for up to 3000 hours on an S304H-type austenitic stainless steel was investigated. Aging for 100 hours resulted in the precipitation of M23C6 carbides mainly on the grain boundaries. Further aging led to a fast coarsening of these carbides, forming semi-continuous chains along the grain boundaries. This coarsening reduced the fracture toughness and increased susceptibility to intergranular corrosion. However, the uniformly dispersed NbC carbides and Cu-rich particles were less prone to coarsening under aging. The dispersion strengthening by carbide/nitride particles gradually decreased while that from Cu particles increased during annealing, resulting in a slight increase in tensile strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Zeinab Y. Alsmadi, K. L. Murty
Summary: High-temperature creep-fatigue behavior of Alloy 709 was investigated through strain-controlled tests at 650°C and 750°C, revealing fluctuations in creep-fatigue life at 650°C due to Dynamic Strain Aging. Linear damage summation (LDS) was used to create a creep-fatigue interaction diagram, showing increased crack and creep cavity density at 750°C compared to 650°C.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Nanoscience & Nanotechnology
Wen-Hao Yang, Peng-Ming Cheng, Yang Li, Ruihong Wang, Gang Liu, Lu Xin, Jin-Yu Zhang, Dan-Ping Li, Hai-Bing Zhang, Jun Sun
Summary: Tensile tests and ratcheting tests were conducted on a 316LN austenitic stainless steel at various temperatures to investigate the influence of dynamic strain aging (DSA) on deformation behavior and microstructural evolution. The results showed that the DSA temperature range was above 400°C. A sudden drop in ratcheting strain accumulation was observed when the temperature increased from 300°C to 400°C. Within the DSA temperature region, the ratcheting behavior was found to be insensitive to temperature. Microstructural examinations revealed different structures in samples with and without DSA, indicating a change in the predominant ratcheting deformation mechanism. The balance between DSA-induced hardening and thermally-activated softening led to temperature-insensitive ratcheting behavior within the temperature range of 400°C to 600°C.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Xiaopeng Xiao, Dianzhong Li, Yiyi Li, Shanping Lu
Summary: The formation of stress relaxation cracks under different tensile residual stresses and aging time in Super304H austenitic stainless steel weld metal was quantitatively investigated using the pre-compressed CT technique. The statistical results showed that intergranular cracks could occur within a certain period of time, and different carbides were the main causes of crack formation. Furthermore, the mechanism responsible for crack formation varied under different aging time conditions.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Qiyu Wang, Shenghu Chen, Xinliang Lv, Haichang Jiang, Lijian Rong
Summary: This study investigates the role of delta-ferrite in fatigue crack growth under solution treated and accelerated aged conditions. It is found that the fatigue crack growth resistance is higher in samples containing delta-ferrite under solution treated conditions. However, a significant deterioration of fatigue crack growth resistance is observed in the delta-ferrite containing samples after accelerated aging treatment.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jae Hoon Jang, Jae Young Kang, Sung-Dae Kim
Summary: Based on first-principles calculations, two Gd-containing austenitic stainless steels were designed as neutron-absorbing structural materials. The Gd-rich precipitates in each alloy were identified via scanning electron microscopy and transmission electron microscopy. (Ni,Fe,Cr)7Gd2 precipitates were observed in the 18Cr-20Ni-1.5Gd wt.% alloy, with a melting temperature of about 1149 degrees C, which is higher than the reheating temperature commonly used for austenitic stainless steels, indicating the potential to develop Gd-containing stainless steel with a good combination of neutron absorption capacity, hot workability, and ductility.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
D. P. Rao Palaparti, V. Ganesan, J. Christopher, G. V. Prasad Reddy
Summary: The study focused on the tensile flow analysis of austenitic type 316LN stainless steel with varying nitrogen levels at different temperatures and strain rates. The results showed that the Ludwigson flow relationship accurately described the stress-strain behavior and work hardening response, with the increase in nitrogen content leading to higher strain hardening and diminished dynamic recovery. The Ludwigson equation was found to accurately predict flow stress and strength values compared to experimental data.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Materials Science, Multidisciplinary
Seung-Yong Lee, Chikako Takushima, Jun-ichi Hamada, Nobuo Nakada
Summary: This study used digital image correlation to investigate the tensile deformation behavior of an Fe-19Cr-13Ni-0.2C austenitic stainless steel at high temperatures, revealing that dynamic strain aging is controlled by the pipe diffusion of Cr atoms and necking deformation occurs suddenly at the PLC band when the local strain rate exceeds the critical value.
Article
Materials Science, Multidisciplinary
Koki Yamamoto, Toshio Ogawa, Zhilei Wang, Yoshitaka Adachi
Summary: In this study, scale-bridging analysis was conducted on the heterogeneous deformation behavior in SUS310S austenitic stainless steel using X-ray line profile analysis, digital image correlation (DIC), and transmission electron microscopy (TEM). The results showed that increasing strain led to higher dislocation density and smaller crystallite size, with different forms of dislocation distribution observed in different stages of deformation.
Article
Materials Science, Multidisciplinary
Elham Sharifikolouei, Baran Sarac, Alexandre Micoulet, Reinhard Mager, Moyu Watari-Alvarez, Efi Hadjixenophontos, Zaklina Burghard, Guido Schmitz, Joachim P. Spatz
Summary: The hardness of AISI316-Ti stainless steel has been improved by generating an amorphous-nanocrystalline microstructure. The fully amorphous structure was obtained using a modified melt-spinning technique, and the hardness was characterized using thermal analysis and nanoindentation analysis.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Y. Jiang, X. Zhou, X. Y. Li, K. Lu
Summary: Grain boundary relaxation can stabilize nanograined structures in many FCC metals and alloys, but this mechanism is interfered by deformation-induced martensitic transformation in 304 stainless steels. In this study, gradient FCC nanograined structures were prepared in a 304 stainless steel and triggered GB relaxation was observed in samples with grain sizes below 60 nm. Thermal stability increased with decreasing grain size, contrary to the conventional trend. Martensitic nanograins of the same composition did not exhibit GB relaxation, as their instability temperature was controlled by reverse martensitic transformation.
Article
Materials Science, Multidisciplinary
Byeong Seo Kong, Ji Ho Shin, Chaewon Jeong, Changheui Jang, Sung-Sik Kang
Summary: The deformation behavior of 8-ferrite in an aged austenitic stainless-steel weld was studied to understand the contribution of aging-induced nanofeatures to aging embrittlement. The strengthening effect of spinodal decomposition and G-phase precipitation was evaluated and compared using nanopillar compression tests. The results showed that the nanofeatures exhibited different stability during deformation, with G-phase being less effective as an obstacle compared to spinodal decomposition.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
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)