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Artículos de revistas sobre el tema "Anisotropic steels"

Autor: Grafiati

Publicado: 25 de mayo de 2024

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1

Niazi, M. S., V. Timo Meinders, H. H. Wisselink, C. H. L. J. ten Horn, Gerrit Klaseboer, and A. H. van den Boogaard. "A Plasticity Induced Anisotropic Damage Model for Sheet Forming Processes." Key Engineering Materials 554-557 (June 2013): 1245–51. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1245.

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The global fuel crisis and increasing public safety concerns are driving the automotive industry to design high strength and low weight vehicles. The development of Dual Phase (DP) steels has been a big step forward in achieving this goal. DP steels are used in many automotive body-in-white structural components such as A and B pillar reinforcements, longitudinal members and crash structure parts. DP steels are also used in other industrial sectors such as precision tubes, train seats and Liquid Petroleum Gas (LPG) cylinders. Although the ductility of DP steel is higher than classical high str

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2

Szumiata, Tadeusz, Paweł Rekas, Małgorzata Gzik-Szumiata, Michał Nowicki, and Roman Szewczyk. "The Two-Domain Model Utilizing the Effective Pinning Energy for Modeling the Strain-Dependent Magnetic Permeability in Anisotropic Grain-Oriented Electrical Steels." Materials 17, no. 2 (2024): 369. http://dx.doi.org/10.3390/ma17020369.

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This paper presents a newly proposed domain wall energy-based model of the 2D strain dependence of relative magnetic permeability in highly grain-oriented anisotropic electrical steels. The model was verified utilizing grain-oriented M120-27s electrical steel sheet samples with magnetic characteristics measured by an automated experimental setup with a magnetic yoke. The model’s parameters, identified in the differential evolution-based optimization process, enable a better understanding of the interaction between stress-induced anisotropy and magnetocrystalline anisotropy in electrical steels

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3

Niazi, M. S., H. H. Wisselink, and T. Meinders. "Validation of Modified Lemaitre’s Anisotropic Damage Model with the Cross Die Drawing Test." Key Engineering Materials 488-489 (September 2011): 49–52. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.49.

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Dual Phase (DP) steels are widely replacing the traditional forming steels in automotive industry. Advanced damage models are required to accurately predict the formability of DP steels. In this work, Lemaitre’s anisotropic damage model has been slightly modified for sheet metal forming applications and for strain rate dependent materials. The damage evolution law is adapted to take into account the strain rate dependency and negative triaxialities. The damage parameters for pre-production DP600 steel were determined. The modified damage models (isotropic and anisotropic) were validated using

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4

van den Berg, F. D., and H. T. Ploegaert. "Strain Dependence of Magnetic Anisotropy in Low-Carbon Production Steels." Materials Science Forum 495-497 (September 2005): 1475–84. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1475.

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The magnetic parameters of steel depend on the mutual orientation of the applied magnetic field, the (applied) stress and the crystalline structure. The magnetic anisotropy can be modeled in terms of the magneto-elastic and magneto-crystalline energy distributions. By investigation of the magnetic anisotropic behaviour of steels with respect to stress, a rapid, nondestructive and possibly non-contact measurement of the residual stress can be devised that can find application in manufacturing, machining, forming and life-time assessment of steel and steel components. Reliability, robustness and

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5

Toribio, Jesús, Beatriz González, Juan Carlos Matos, and F. J. Ayaso. "Anisotropic Fracture Behaviour of Progressively Drawn Pearlitic Steel." Key Engineering Materials 452-453 (November 2010): 1–4. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.1.

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This paper analyses the differences in fracture behaviour of two cold drawn pearlitic steels with different degree of strain hardening: a slightly drawn bar and a heavily drawn wire. The load-displacement curve F-u was analysed in the two cases, with special emphasis in the characteristic points of the plot: the load defining the end of linear behaviour (Fe), the final fracture load (Fmax) and, in the heavily drawn steel, the pop-in load (FY). Results demonstrate that slightly drawn steels exhibit isotropic fracture behaviour with crack propagation along its own plane (mode I propagation). On

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6

Panich, Sansot. "Constitutive Modeling of Advanced High Strength Steels Characterized by Uniaxial and Biaxial Experiments." Advanced Materials Research 849 (November 2013): 207–11. http://dx.doi.org/10.4028/www.scientific.net/amr.849.207.

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Anisotropic plastic behavior of advanced high strength steel sheets of grade DP780 and DP980 were investigated using three different yield functions, namely, the von Mises, Hills 48 and Barlat2000 (Yld2000-2d) criteria. Uniaxial tensile and balanced biaxial (hydraulic bulge) tests were conducted for the examined steels in order to characterize flow behavior and plastic anisotropy for different stress states. Additionally, disk compression and In-plane biaxial tension tests were performed for obtaining balanced r-value of DP780 and DP980, respectively. All these data were used to determine the

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7

Steuwer, Axel, Javier Roberto Santisteban, Philip J. Withers, Lyndon Edwards, and Mike E. Fitzpatrick. "In situdetermination of stresses from time-of-flight neutron transmission spectra." Journal of Applied Crystallography 36, no. 5 (2003): 1159–68. http://dx.doi.org/10.1107/s0021889803013748.

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The pulsed neutron transmission diffraction technique exploits the sharp steps in intensity (Bragg edges) appearing in the transmitted spectra of thermal neutrons through polycrystalline materials. In this paper the positions of these edges acquired by the time-of-flight (TOF) technique are used to measure accurately the interplanar lattice distances to a resolution of Δd/d≃ 10−4of specimens subjected toin situuniaxial tensile loading. The sensitivity of the method is assessed for elastically isotropic (b.c.c. ferritic) and anisotropic (f.c.c. austenitic) polycrystalline specimens of negligibl

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8

YONEDA, KEISHI, AKIO YONEZU, HIROYUKI HIRAKATA, and KOHJI MINOSHIMA. "ESTIMATION OF ANISOTROPIC PLASTIC PROPERTIES OF ENGINEERING STEELS FROM SPHERICAL IMPRESSIONS." International Journal of Applied Mechanics 02, no. 02 (2010): 355–79. http://dx.doi.org/10.1142/s1758825110000536.

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This study proposes a method of reverse analysis to estimate the anisotropic plastic properties of engineering steels by spherical indentation. The method takes into consideration materials that obey the work-hardening law and show in-plane anisotropic yield stress. Finite element analysis was first carried out to compute the indentation behavior of such materials, showing that a permanent impression exhibited an anisotropic shape which was strongly dependent on the orthotropic axis. Based on the anisotropy of the impression geometry, we developed a simple approach to determine the yield stres

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9

Toribio, Jesús, and Francisco-Javier Ayaso. "Cleavage Stress Producing Notch-Induced Anisotropic Fracture and Crack Path Deflection in Cold Drawn Pearlitic Steel." Metals 11, no. 3 (2021): 451. http://dx.doi.org/10.3390/met11030451.

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The fracture performance of axisymmetric notched samples taken from pearlitic steels with different levels of cold-drawing is studied. To this end, a real manufacture chain was stopped in the course of the process (on-site in the factory), and samples of all intermediate stages were extracted from the initial hot-rolled bar (not cold-drawn at all) to the final commercial product (prestressing steel wire). Thus, the drawing intensity or straining level (represented by the yield strength) is treated as the key variable to elucidate the consequences of manufacturing on the posterior fracture issu

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10

Toribio, Jesús, Beatriz González, and Juan Carlos Matos. "Anisotropic Fatigue & Fracture Behaviour in Hot-Rolled and Cold-Drawn Pearlitic Steel Wires." Key Engineering Materials 713 (September 2016): 103–6. http://dx.doi.org/10.4028/www.scientific.net/kem.713.103.

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This paper analyses the role of cold drawing in the fatigue and fracture behaviour of pearlitic steels with distinct drawing degree (a hot rolled bar and a commercial prestressing steel wire). Fatigue crack growth develops globally in mode I and locally in mixed mode in both steels, the micro-crack deflection angle depending on the drawing degree. With regard to fracture behaviour, it takes place in mode I in the hot-rolled bar and in mixed mode (with a strong component of mode II) in the case of the cold-drawn wire, so that strength anisotropy appears in the drawn steel and a sort of directio

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11

Toribio, Jesús, Francisco-Javier Ayaso, and Beatriz González. "Role of Non-Metallic Inclusions in the Fracture Behavior of Cold Drawn Pearlitic Steel." Metals 11, no. 6 (2021): 962. http://dx.doi.org/10.3390/met11060962.

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In this paper an exhaustive scientific work is performed, by means of metallographic and scanning electron microscope (SEM) techniques, of the microstructural defects exhibited by pearlitic steels and their evolution with the manufacturing process by cold drawing, analyzing the consequences of such defects on the isotropic/anisotropic fracture behavior of the different steels. Thus, the objective is the establishment of a relation between the microstructural damage and the fracture behavior of the different steels. To this end, samples were taken from all the intermediate stages of the real co

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12

Knieps, Fabian, Manuel Köhl, and Marion Merklein. "Local Strain Measurement in Tensile Test for an Optimized Characterization of Packaging Steel for Finite Element Analysis." Key Engineering Materials 883 (April 2021): 309–16. http://dx.doi.org/10.4028/www.scientific.net/kem.883.309.

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The continuous development of packaging steels for thickness reduction processes requires an advanced process design. This process is increasingly supported by finite element analysis to simplify tool construction and material selection purposes. Therefore, the fundamental basis is always the precise material characterization of packaging steel commonly based on tensile tests to determine flow curve and Lankford coefficients. However, due to strong temper rolling and the occurrence of slip bands, most packaging steels just show little elongation in tensile test. Therefore, a method of Paul et

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13

Kolpak, Felix, Oliver Hering, and A. Erman Tekkaya. "Consequences of large strain anisotropic work-hardening in cold forging." International Journal of Material Forming 14, no. 6 (2021): 1463–81. http://dx.doi.org/10.1007/s12289-021-01641-9.

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AbstractThe influence of anisotropic work-hardening on the component properties and process forces in cold forging is investigated. The focus is on the material behaviour exhibited after strain path reversals. The work-hardening of three steels is characterized for large monotonic strains (equivalent strains up to 1.7) and subsequent strain path reversals (accumulated strains up to 2.5). Tensile tests on specimens extracted from rods forward extruded at room temperature reveal an almost linear work-hardening for all investigated steels. The application of compressive tests on extruded material

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14

Toribio, Jesús. "Cold-Drawn Pearlitic Steels as Hierarchically Structured Materials: An Approach to Johann Sebastian Bach." Key Engineering Materials 774 (August 2018): 492–97. http://dx.doi.org/10.4028/www.scientific.net/kem.774.492.

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This paper analyzes the hierarchical microstructure of cold-drawn pearlitic steels. To this end, environmentally assisted fracture behavior and microstructural integrity in aggressive environments is analyzed in progressively cold-drawn pearlitic steels based on their microstructural evolution during the multi-step cold drawing manufacture process producing a slenderizing and orientation of the pearlitic colonies (first microstructural level), and orientation and densification of the ferrite/cementite lamellae (second microstructural level). Thus the microstructure of the cold-drawn pearlitic

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15

Lian, Jun He, Deok Chan Ahn, Dong Chul Chae, Sebastian Münstermann, and Wolfgang Bleck. "Cold Formability of Automotive Sheet Metals: Anisotropy, Localization, Damage and Ductile Fracture." Key Engineering Materials 639 (March 2015): 353–60. http://dx.doi.org/10.4028/www.scientific.net/kem.639.353.

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Experimental and numerical investigations on the characterization and prediction of cold formability of two different types of automotive steel sheets, a ferritic stainless steel sheet (AISI 439) and a dual-phase steel sheet (DP600) are performed in this study. Due to the different microstructure configurations, these two steels show significant differences in plasticity behavior as well as failure mechanisms. The ferritic stainless steel shows strong anisotropic plastic deformation in terms of both yielding and hardening, whereas the dual-phase steel behaves quite isotropic resulting from the

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16

Gomes, Carlos, Oladipo Onipede, and Michael Lovell. "Investigation of springback in high strength anisotropic steels." Journal of Materials Processing Technology 159, no. 1 (2005): 91–98. http://dx.doi.org/10.1016/j.jmatprotec.2004.04.423.

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17

Onuki, Yusuke, and Shigeo Sato. "In Situ Observation for Deformation-Induced Martensite Transformation (DIMT) during Tensile Deformation of 304 Stainless Steel Using Neutron Diffraction. PART I: Mechanical Response." Quantum Beam Science 4, no. 3 (2020): 31. http://dx.doi.org/10.3390/qubs4030031.

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304 stainless steel is one of the most common stainless steels due to its excellent corrosion resistance and mechanical properties. Typically, a good balance between ductility and strength derives from deformation-induced martensite transformation (DIMT), but this mechanism has not been fully explained. In this study, we conducted in situ neutron diffraction measurements during the tensile deformation of commercial 304 stainless steel (at room temperature) by means of a Time-Of-Flight type neutron diffractometer, iMATERIA (BL20), at J-PARC MLF (Japan Proton Accelerator Research Complex, Materi

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18

Knieps, Fabian, Benjamin Liebscher, Ioana Moldovan, Manuel Köhl, and Johannes Lohmar. "Characterization of High-Strength Packaging Steels: Obtaining Material Data for Precise Finite Element Process Modelling." Metals 10, no. 12 (2020): 1683. http://dx.doi.org/10.3390/met10121683.

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The steadily increasing demand for downgauging to reduce costs in packaging steel applications requires the development of high-strength packaging steel grades to meet strength requirements. At the same time, the demand for a simulative, computer-aided layout of industrial forming processes is growing to reduce costs in tool constructions for downgauging manners. As part of this work, different high-strength packaging steels were characterized for use in a finite element based process layout and validated using application-oriented experiments. Due to a low hardening rate and the occurrence of

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19

Yeddu, Hemantha Kumar, John Ågren, and Annika Borgenstam. "3D Phase Field Modeling of Martensitic Microstructure Evolution in Steels." Solid State Phenomena 172-174 (June 2011): 1066–71. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.1066.

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Complex martensitic microstructure evolution in steels generates enormous curiosity among the materials scientists and especially among the Phase Field (PF) modeling enthusiasts. In the present work PF Microelasticity theory proposed by A.G. Khachaturyan coupled with plasticity is applied for modeling the Martensitic Transformation (MT) by using Finite Element Method (FEM). PF simulations in 3D are performed by considering different cases of MT occurring in a clamped system, i.e. simulation domain with fixed boundaries, of (a) pure elastic material with dilatation (b) pure elastic material wit

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20

Tang, Bingtao, Zhongmei Wang, Ning Guo, Qiaoling Wang, and Peixing Liu. "An Extended Drucker Yield Criterion to Consider Tension–Compression Asymmetry and Anisotropy on Metallic Materials: Modeling and Verification." Metals 10, no. 1 (2019): 20. http://dx.doi.org/10.3390/met10010020.

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Pressure sensitive asymmetric Drucker yield criterion is developed to deal with pressure dependent sheet metals for instance steels and aluminum alloys. The sensitivity to pressure is conserved by introducing three-dimensional anisotropic parameters in the first stress invariant; while the third deviatoric stress invariant is remained in odd function form to consider the strength differential effect (SDE). To describe the flow stress directionalities of metallic materials, the Drucker yield function is extended using two transformation matrix consisting of anisotropic parameters. The proposed

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21

Watanabe, Yoshimi, Naoya Iwata, and Hisashi Sato. "Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity." Materials Science Forum 879 (November 2016): 101–6. http://dx.doi.org/10.4028/www.scientific.net/msf.879.101.

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The effects of thermo-mechanical training on damping capacity of two types of stainless steels, Fe-18Cr-8Ni (SUS 304) and Fe-25Cr-20Ni (SUS 310S) stainless steels, are studied. The thermo-mechanical training with bending deformation is adopted, since vibration manner in internal friction measurement is bending mode. An anisotropic damping capacity as well as hardness of samples is studied. It is found that deformation induced ε-martensite is observed for trained SUS 304 sample, while deformation twins are formed in the trained SUS 310S sample. It is also found that internal friction of SUS 304

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22

Altendorf, Hellen, Felix Latourte, Dominique Jeulin, Matthieu Faessel, and Lucie Saintoyant. "3D RECONSTRUCTION OF A MULTISCALE MICROSTRUCTURE BY ANISOTROPIC TESSELLATION MODELS." Image Analysis & Stereology 33, no. 2 (2014): 121. http://dx.doi.org/10.5566/ias.v33.p121-130.

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In the area of tessellation models, there is an intense activity to fully understand the classical models of Voronoi, Laguerre and Johnson-Mehl. Still, these models are all simulations of isotropic growth and are therefore limited to very simple and partly convex cell shapes. The here considered microstructure of martensitic steel has a much more complex and highly non convex cell shape, requiring new tessellation models. This paper presents a new approach for anisotropic tessellation models that resolve to the well-studied cases of Laguerre and Johnson-Mehl for spherical germs. Much better re

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23

Lobanov, M. L., G. M. Rusakov, and A. A. Redikul’tsev. "Electrotechnical anisotropic steels. Part II. State-of-the-art." Metal Science and Heat Treatment 53, no. 7-8 (2011): 355–59. http://dx.doi.org/10.1007/s11041-011-9397-8.

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24

Grilo, Tiago Jordão, Nelson Souto, Robertt Angelo Fontes Valente, António Andrade-Campos, Sandrine Thuillier, and R. J. Alves de Sousa. "On the Development and Computational Implementation of Complex Constitutive Models and Parameters’ Identification Procedures." Key Engineering Materials 554-557 (June 2013): 936–48. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.936.

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Nowadays, the automotive industry has focused its attention to weight reduction of the vehicles to overcome environmental restrictions. For this purpose, new materials, namely, advanced high strength steels and aluminum alloys have emerged. These materials combine good formability and ductility, with a high tensile strength due to a multi-phase structure (for the steel alloys) and reduced weight (for the aluminum alloys). As a consequence of their advanced performances, complex constitutive models are required in order to describe the various mechanical features involved. In this work, the ani

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25

Park, Minha, Moon Seok Kang, Geon-Woo Park, et al. "The Effects of Recrystallization on Strength and Impact Toughness of Cold-Worked High-Mn Austenitic Steels." Metals 9, no. 9 (2019): 948. http://dx.doi.org/10.3390/met9090948.

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High-Mn austenitic steels have been recently developed for a storage or transportation application of liquefied natural gas (LNG) in cryogenic fields. Since the structural materials are subjected to extremely low temperature, it requires excellent mechanical properties such as high toughness strength. In case of high-Mn steels, twinning deformation during the cold-working process is known to increase strength yet may cause embrittlement of heavy deformed twin and anisotropic properties. In this study, a recrystallization process through appropriate annealing heat treatments after cold-working

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26

Chmielewski, Marek, and Leszek Piotrowski. "Application of the Barkhausen effect probe with adjustable magnetic field direction for stress state determination in the P91 steel pipe." Journal of Electrical Engineering 69, no. 6 (2018): 497–501. http://dx.doi.org/10.2478/jee-2018-0085.

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Abstract The paper presents the results of application of a novel Barkhausen effect (BE) probe with adjustable magnetizing field direction for the stress level evaluation in ferromagnetic materials. The investigated sample was in a form of a pipe, made of P91 steel that was anisotropic due to the production process. The measurements were performed before and after welding, revealing the influence of welding process on the residual stress distribution. As was observed, the process introduced high tensile stresses in the normal to the weld direction (which can be interpreted as a decrease of str

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27

Choi, Shi Hoon, B. J. Kim, S. I. Kim, Jin Won Choi, and Kwang Geun Chin. "Simulation of Primary Recrystallization in Automotive Steels by Consideration of Particle Pinning." Materials Science Forum 558-559 (October 2007): 171–76. http://dx.doi.org/10.4028/www.scientific.net/msf.558-559.171.

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A modified two dimensional (2-D) Monte Carlo (MC) technique was used to simulate primary recrystallization in automotive steels containing fine particles. In order to consider anisotropic properties of grain boundary energy and grain boundary mobility, functions of boundary misorientation were introduced. Orientation-dependent stored energy developed in 80% cold-rolled interstitial free (IF) sheet steel was evaluated by reconstructing of data measured using electron back-scattered diffraction (EBSD) analysis. A subgrain method based on subgrain structure is used for quantitative analysis of th

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28

Могильнер, Леонид Юрьевич, and Николай Николаевич Скуридин. "Laboratory researches of the magnetic-anisotropic method for monitoring the stress-strain state of pipelines." SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATION, no. 2 (April 30, 2021): 145–51. http://dx.doi.org/10.28999/2541-9595-2021-11-2-145-151.

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Оценка напряженно-деформированного состояния - один из важнейших этапов при определении работоспособности металлоконструкций, условий их безопасной эксплуатации и остаточного ресурса. Однако до настоящего времени отсутствуют хорошо апробированные технологии, которые позволяли бы определять данную характеристику стальных трубопроводов и корпусов оборудования при диагностировании в условиях эксплуатации. Цель статьи - анализ возможности применения для этого магнитно-анизотропного метода. Метод основан на фиксации магнитных полей рассеяния, возникающих над поверхностью ферромагнитного металла, ко

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Benzerga, A. A., J. Besson, and A. Pineau. "Coalescence-Controlled Anisotropic Ductile Fracture." Journal of Engineering Materials and Technology 121, no. 2 (1999): 221–29. http://dx.doi.org/10.1115/1.2812369.

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The anisotropic ductile fracture of rolled plates containing elongated inclusions is promoted by both the dilational growth of voids and the coalescence process. In the present article, the emphasis is laid on the latter process. The effects of void shape and mainly of inter-particle spacings are investigated. Two types of coalescence models are compared: a localization-based model and plastic limit-load models. The capabilities of both approaches to incorporate shape change and spacing effects are discussed. These models are used to predict the fracture properties of two low alloy steels cont

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30

Mirone, Giuseppe, Raffaele Barbagallo, Giuseppe Bua, Pietro Licignano, and Michele Maria Tedesco. "An Enhanced Approach for High-Strain Plasticity in Flat Anisotropic Specimens with Progressively Distorting Neck Sections." Metals 14, no. 5 (2024): 578. http://dx.doi.org/10.3390/met14050578.

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Characterizing the behavior of ductile metals at high strains is essential in various fields. In the case of thin sheets, rectangular cross-section specimens are used to characterize these materials, typically by tensile tests. Unlike cylindrical specimens, flat ones pose additional challenges for the hardening characterization at high strains, especially in the post-necking phase, which, for many high-strength steels, may cover most of the plastic strain range. After the onset of global necking, the rectangular cross-sections tend to distort with respect to their original shape, as their edge

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31

Jung, Jaebong, Sungwook Jun, Hyun-Seok Lee, Byung-Min Kim, Myoung-Gyu Lee, and Ji Kim. "Anisotropic Hardening Behaviour and Springback of Advanced High-Strength Steels." Metals 7, no. 11 (2017): 480. http://dx.doi.org/10.3390/met7110480.

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32

Handgruber, Paul, Andrej Stermecki, Oszkar Biro, Viktor Gorican, Emad Dlala, and Georg Ofner. "Anisotropic Generalization of Vector Preisach Hysteresis Models for Nonoriented Steels." IEEE Transactions on Magnetics 51, no. 3 (2015): 1–4. http://dx.doi.org/10.1109/tmag.2014.2353691.

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Vanegas, E., K. Mocellin, and R. Logé. "Identification of cyclic and anisotropic behaviour of ODS steels tubes." Procedia Engineering 10 (2011): 1208–13. http://dx.doi.org/10.1016/j.proeng.2011.04.201.

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Coppola, T., F. Iob, L. Cortese, and F. Campanelli. "Prediction of ductile fracture in anisotropic steels for pipeline applications." Procedia Structural Integrity 2 (2016): 2936–43. http://dx.doi.org/10.1016/j.prostr.2016.06.367.

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35

Tankoua, F., J. Crepin, P. Thibaux, M. Arafin, S. Cooreman, and A. F. Gourgues. "Delamination of pipeline steels: determination of an anisotropic cleavage criterion." Mechanics & Industry 15, no. 1 (2014): 45–50. http://dx.doi.org/10.1051/meca/2014001.

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36

Radchenko, A. V., and N. K. Gal'chenko. "Fracture of isotropic and anisotropic structural steels under dynamic loading." Soviet Materials Science 28, no. 3 (1992): 281–83. http://dx.doi.org/10.1007/bf00726197.

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37

Galdikas, Arvaidas, and Teresa Moskalioviene. "The Anisotropic Stress-Induced Diffusion and Trapping of Nitrogen in Austenitic Stainless Steel during Nitriding." Metals 10, no. 10 (2020): 1319. http://dx.doi.org/10.3390/met10101319.

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Plasma nitriding of austenitic stainless steels at moderate temperatures is considered in the presented work. The anisotropic aspects of stress-induced diffusion and influence of nitrogen traps are investigated by kinetic modeling based on rate equations. The model involves diffusion of nitrogen in the presence of internal stress gradients induced by penetrating nitrogen as the next driving force of diffusion after the concentration gradient. The diffusion equation takes into account the fact that nitrogen atoms reside in interstitial sites and in trapping sites. Stress-induced diffusion has a

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da Silveira, Lílian Barros, Luciano Pessanha Moreira, Ladario da Silva, et al. "Limit Strains Analysis of Advanced High Strength Steels Sheets Based on Surface Roughness Measurements." Materials Science Forum 930 (September 2018): 349–55. http://dx.doi.org/10.4028/www.scientific.net/msf.930.349.

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The limit strains of dual-phase steels DP600 and 800 were evaluated in this work with a localization model formulated in plane-stress conditions using elasto-plastic constitutive equations. In this model, a geometrical imperfection parameter is defined from the sheet nominal thickness, initial ferrite grain size and average surface roughness. The proposed identification procedure provided a more physically meaning for this parameter and at best more conservative predictions in the drawing Forming Limit Curve (FLC) range of both investigated dual-phase steels. Nevertheless, the corresponding li

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Liu, Gang, Kai-Shu Guan, and Ji-Ru Zhong. "Application of Pre-Strained Steels in Empirical Correlation Between Small Punch Test and Uniaxial Tensile Test." Science of Advanced Materials 12, no. 6 (2020): 892–98. http://dx.doi.org/10.1166/sam.2020.3746.

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In order to research the method of strength empirical correlation between conventional small punch test (SPT) and uniaxial tensile test, a series of austenitic stainless steel including pre-strained SUS304 have been tested in this study. The conventional SPT is conducted on a small disc-shaped specimen whose edge is firmly gripped by a die, and the specimen is deformed by a punch. The method of empirical correlation between SPT and uniaxial tensile test is a direct way to obtain the mechanical properties of materials. Through establishing the strength empirical correlation, it can achieve to c

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Zhao, Yonggang, Yuanbiao Tan, Xuanming Ji, and Song Xiang. "Microstructural dependence of anisotropic fracture mechanisms in cold-drawn pearlitic steels." Materials Science and Engineering: A 735 (September 2018): 250–59. http://dx.doi.org/10.1016/j.msea.2018.08.044.

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Shirkoohi, G. H., and J. Liu. "A finite element method for modelling of anisotropic grain-oriented steels." IEEE Transactions on Magnetics 30, no. 2 (1994): 1078–80. http://dx.doi.org/10.1109/20.312500.

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42

Herold-Schmidt, U., and R. Hinsberger. "Abrasive wear resistance of anisotropic two phase Fe-Ni-C steels." Wear 120, no. 2 (1987): 151–60. http://dx.doi.org/10.1016/0043-1648(87)90064-0.

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43

Shirkoohi, G. H. "Anisotropic dependence of magnetostriction in electrical steels under applied linear stress." Journal of Magnetism and Magnetic Materials 157-158 (May 1996): 516–18. http://dx.doi.org/10.1016/0304-8853(95)01185-4.

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44

Shore, Diarmuid, Jerzy Gawad, Steven Cooreman, et al. "Simulation of a Thick Plate Forming Benchmark Using a Multi Scale Texture Evolution and Anisotropic Plasticity Model." Key Engineering Materials 549 (April 2013): 436–43. http://dx.doi.org/10.4028/www.scientific.net/kem.549.436.

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Thick plate and sheet materials are often characterised by an inhomogeneous distribution of properties such as yield strength and anisotropy throughout their thickness. Forming of these materials involves further heterogeneous evolution of these properties. A recently developed computational framework [1, now allows these heterogeneities to be modelled via a hierarchical multi-scale material modelling scheme: the evolution of texture and plastic anisotropy can be tracked and individually updated at every integration point in a finite element model, in a computationally efficient manner. In thi

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Zurek, Stan, Piotr Borowik, and Krzysztof Chwastek. "Prediction of anisotropic properties of grain-oriented steels based on magnetic measurements." Journal of Electrical Engineering 69, no. 6 (2018): 470–73. http://dx.doi.org/10.2478/jee-2018-0078.

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Abstract Magnetic properties of grain-oriented steels are inseparably linked to their anisotropy. A proper characterization of anisotropy is thus crucial for practical applications. In the paper a description based on magnetic measurements carried out for three well-defined cutting angles is presented. It is shown that it is possible to predict magnetic properties of interest (coercive field strength, remanence flux density) for an arbitrary angle using a limited number of measurements.

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46

GOU, Rui-bin, Wen-jiao DAN, Wei-gang ZHANG, and Min YU. "Prediction on the Mechanical and Forming Behaviors of Ferrite-Martensite Dual Phase Steels Based on a Flow Model." Materials Science 26, no. 4 (2020): 401–7. http://dx.doi.org/10.5755/j01.ms.26.4.22104.

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An innovative flow model incorporating the mixture hardening law, anisotropic yield function, and incremental strain formulations was elaborated and applied to DP590 ferrite-martensite dual phase steel. To verify the flow model, both the macro/micro stress-strain responses and the forming patterns of DP590 steel with different martentite contents were simulated during the processes of the cup deep-drawing and the unconstrained cylindrical bending to evaluate the influence of martensite content on the mechanical and forming behavior of the steel. It was found that maternsite content has a signi

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Stavynskyi, A. A., O. A. Avdeeva, D. L. Koshkin, R. A. Stavynskyi, and O. M. Tsyganov. "Technical solutions to reduce losses in magnetic cores and material consumption of three-phase transformer and reactor equipment." Electrical Engineering & Electromechanics, no. 2 (February 24, 2024): 3–9. http://dx.doi.org/10.20998/2074-272x.2024.2.01.

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Purpose. The increase in energy costs and the need for further energy saving lead to an increase in requirements for reducing losses in the magnetic cores of transformers and reactors. Problem. The improvement of transformer and reactor equipment is traditionally carried out by applying the achievements of electrical materials science and new technologies to traditional designs and structures of electromagnetic systems. The basis of modern transformers is made up of laminated and twisted magnetic cores. The disadvantage of laminated magnetic cores is large additional losses in corner zones due

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Zeinali, Reza, Dave Krop, and Elena Lomonova. "Anisotropic Congruency-Based Vector Hysteresis Model Applied to Non-Oriented Laminated Steels." IEEE Transactions on Magnetics 57, no. 6 (2021): 1–4. http://dx.doi.org/10.1109/tmag.2021.3059903.

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Moverare, J. J., and Magnus Odén. "Anisotropic High Cycle Fatigue Behaviour of Duplex Stainless Steels: Influence of Microstresses." Zeitschrift für Metallkunde 93, no. 1 (2002): 7–11. http://dx.doi.org/10.3139/146.020007.

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Kop, T. A., J. Sietsma, and S. van der Zwaag. "Anisotropic dilatation behaviour during transformation of hot rolled steels showing banded structure." Materials Science and Technology 17, no. 12 (2001): 1569–74. http://dx.doi.org/10.1179/026708301101509629.

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