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Готові списки джерел за темами / Cold-deformed wire / Статті в журналах

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Статті в журналах з теми "Cold-deformed wire"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

Eltsova, E. S., O. Yu Khodosovskaya, and Yu I. Kozyreva. "The effect of zirconium on the strength cold-deformed reinforcement properties." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 1 (March 12, 2022): 61–63. http://dx.doi.org/10.21122/1683-6065-2022-1-61-63.

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Анотація:

The possibility of using zirconium in the steel composition of the Arx-Zr brand in the cold-deformed reinforcement of a threesided periodic profile of strength class 500 MPa manufacture in order to increase the finished reinforcement strength characteristics is determined. There is test results information of a wire rod /blank with an 8.8 mm diameter, which is intended for the manufacture of cold-deformed fittings with an 8.0 mm diameter, are presented. A comparative analysis of the physical and mechanical finished cold-deformed fittings properties with an 8.0 mm diameter made of steel grade A

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2

Bargujer, S. S., N. M. Suri, and R. M. Belokar. "X-ray Diffraction Analysis of Severely Cold Deformed Hypereutectoid Steel Wire." Defence Science Journal 65, no. 6 (2015): 500. http://dx.doi.org/10.14429/dsj.65.8385.

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<p>Hypereutectoid steel wire rod of diameter 6.40 mm is lead patented in lead bath of an electric powered furnace and then it is cold drawn through converging conical dies in a die sequence up to 2.50 mm diameter. The drawn wires subjected to different true strain are analysed using line profile X-ray diffraction methods. The classical Williamson-Hall plot as well as modified Williamson-Hall plot of drawn wire specimens of different true strain is plotted. The theoretical as well as experimental value of q is evaluated. The q is a parameter which depends up on elastic constant of the cry

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3

Zhou, Li Chu, Yu Fei Zhao, and Feng Fang. "Effect of Reserved Texture on Mechanical Properties of Cold Drawn Pearlitic Steel Wire." Advanced Materials Research 936 (June 2014): 1948–52. http://dx.doi.org/10.4028/www.scientific.net/amr.936.1948.

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In this paper, pearlitic steel wire with/without reserved texture were investigated with the help of mechanical test system, scanning electron microscope (SEM) and XRD. Experimental result shows that: Tensile strength of two wire are almost same. After cold drawn tensile strength of wire with reserved texture are higher than tensile strength of the without one. Before cold drawn, two wires have same microstructure of isometric pearlite and after drawing the wire with reserved texture has less shear deformed pearlitic colony. Intensity of <110> fiber texture in the wire with reserved text

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4

Zidani, Mosbah, Zakaria Boumerzoug, Thierry Baudin, and Richard Penelle. "Texture and Evolution of Recrystallization in Low Carbon Steel Wire." Materials Science Forum 514-516 (May 2006): 554–58. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.554.

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The effect of cold wire drawing on texture of industrial low carbon steel wire was investigated. On the other hand, the mechanism of recrystallization of drawn-wire was studied during different isothermal annealing below 723 °C. The structural evolution of wire was studied by optical microscopy, SEM, EBSD and X-Ray diffraction. From this study, a fiber texture was observed in deformed wire. However, a recrystallization reaction occurs after critical temperature during annealing.

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5

Sánchez de León, José Alfredo. "Determinación del ángulo de proyección ortogonal de corruga de alambre laminado." Científica 22, no. 1 (2018): 13–15. http://dx.doi.org/10.46842/ipn.cien.v22n1a02.

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En el presente trabajo se demuestra matemáticamente la posibilidad de utilizar la proyección ortogonal de la corruga de un alambre laminado sobre una superficie específica, para determinar su orientación, como método alternativo al tradicional. Para lograr esto, se desarrolla una función para calcular la orientación de la misma a partir del ángulo subtendido entre su eje imaginario central de simetría y la base del alambre. Finalmente se presenta una fórmula para aplicar mediante una hoja de cálculo la función obtenida y poder ser utilizada en conjunto con el resto de los valores de las variab

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6

Baranov, Vladimir, Sergey Sidelnikov, Evgeniy Zenkin, and Olga Yakivyuk. "Physical Modeling Technological Regimes of Production Deformed Semi-Finished Products from Experimental Aluminium Alloys Alloyed by Scandium." Materials Science Forum 918 (March 2018): 54–62. http://dx.doi.org/10.4028/www.scientific.net/msf.918.54.

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The combination of weldability, corrosion resistance and sufficient strength make it possible to use deformed semi-finished products from the Al-Mg system alloys for sheathing ships' hulls, in car, aircraft and rocket construction, as well as in other areas of industry. To increase the strength characteristics, it is promising to alloy them with small additives of metals such as titanium, zirconium, scandium, and others. In this paper, studies were carried out to obtain deformed semi-finished products (strips, rods and wires) from aluminum alloys in which the scandium content varied from 0.1 t

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7

Shinohara, Yuri, Yoshiki matsumoto, Masaki Tahara, Hideki Hosoda, and Tomonari Inamura. "Effect of cross-sectional area reduction rate and alloy composition on the formation of <001>-fiber texture in Ti-Mo-Al-Zr alloy wire." MATEC Web of Conferences 321 (2020): 11019. http://dx.doi.org/10.1051/matecconf/202032111019.

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Texture formation in Ti-7Mo-8Al-6Zr cold-groove-rolled alloy wires was investigated and compared to that of Ti-5.5Mo-8Al-6Zr. Irregularly textured <001>-fiber was formed in Ti-5.5Mo-8Al-6Zr. The Ti-7Mo-8Al-6Zr cold-groove-rolled wire mainly composed of the β phase though α″ martensite was induced by cold-groove-rolling in the Ti-5.5Mo-8Al-6Zr alloy. From the TEM observations of the severely deformed cold-rolled sheet, α″ martensite was assumed to be induced during cold-groove-rolling and trace α″ was assumed to be retained after cold-groove-rolling. This texture is common in bcc metals a

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8

Xing, Hui, та Jian Sun. "Electron Microscopy Study of Deformation Microstructure in Metastable β Titanium Alloy". Materials Science Forum 654-656 (червень 2010): 867–70. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.867.

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The deformation microstructure of a metastable beta-Ti alloy with chemical composition of Ti-23Nb-0.7Ta-2Zr-1.2O at.% after cold swaging has been studied by electron backscattering diffraction and high-resolution transmission electron microscope. The results showed that the deformation structure of the cold-swaged alloy appears to be similar to the swirled structure that commonly found in bcc metals heavily deformed either by wire-drawing or by rotary swaging process, and <110> fiber texture is a typical texture component of bcc metals. HRTEM results further showed <111> dislocatio

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9

Lamine Baci, Zakaria Boumerzoug, and Claude Esnouf. "Study of texture and recrystallization in commercial pure copper wire with and without heat treatment." Journal of Applied Engineering Science & Technology 4, no. 2 (2018): 4. http://dx.doi.org/10.69717/jaest.v4.i2.75.

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Wire drawing is a necessary operation for the production of small diameter electricalwires. During this process, the shaping of the material is performed by a plastic deformationmechanism. The change in the shape of the metal causes the plastic deformation of each grain ofthe crystalline metal. In this work, we have studied a commercial copper wire. In this study, opticalmicroscopy, electron microscopy transmission, Vickers hardness and X-ray diffraction were used.It is found that cold drawn wires are characterized by texture formation and dislocation cellrearrangement. Isothermal treatments w

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10

Parusov, E. V., V. A. Lutsenko, I. М. Chuiko, O. V. Parusov, T. М. Golubenko, and G. I. Sivak. "ON THE POSSIBILITY OF FORECASTING MECHANICAL PROPERTIES OF COLD-DEFORMED METAL PRODUCTS FROM PEARLITE GRADE STEEL." Fundamental and applied problems of ferrous metallurgy, no. 35 (2021): 236–45. http://dx.doi.org/10.52150/2522-9117-2021-35-236-245.

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In accordance with the latest global trends and modern needs of hardware factories, the demand for wire rod made of pearlitic steels has significantly increased, which can undergo cold plastic deformation with large degrees of reduction and is intended for the manufacture of various commercial products (cold-worked reinforcement, reinforcing ropes, spring wire, steel cord, wire for high pressure hoses, construction fiber, etc.). The most promising direction for increasing the strength class of hot-rolled steels is strain hardening during cold plastic deformation. The structure of cold-worked s

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11

Garcia Borges, Dalton, Márcia Regina Baldissera, Geovani Rodrigues, Mírian de Lourdes Noronha Motta Melo, Rayana Fernanda Ribeiro Lourenço, and Gilbert Silva. "Microstructural and Mechanical Characterization of the Niobium Cold Deformed-Swage." Materials Science Forum 805 (September 2014): 362–67. http://dx.doi.org/10.4028/www.scientific.net/msf.805.362.

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The refractory metals and their alloys show excellent mechanical behavior in high temperatures and high resistance to corrosion and to wear and good thermal conductivity. The metals that constitute this group are, traditionally, tantalum, molybdenum, tungsten and niobium. Niobium (Nb) is a metal with 2468°C melting point, density 8.57 g/cm3 and CCC crystalline structure, is characterized by its excellent ductility and reasonable mechanical resistance in high temperatures. Due to these properties, o Nb is applied in chemical, nuclear and electrical industry and in the superconductor wire produc

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12

Halaczek, Dariusz, and Eugeniusz Hadasik. "Influence of the Materials Combination for the Surface Temperature of the Bimetallic Wire Deformed in the Cold Drawing Process." Solid State Phenomena 226 (January 2015): 53–58. http://dx.doi.org/10.4028/www.scientific.net/ssp.226.53.

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The article discusses the mathematical and practical methodology for evaluating the temperature on the surface of bimetallic wire after deformation in the drawing die. The components of bimetallic wire on the cross-section are the following materials: - a core, brass M63 (CuZn37) - shell M1E copper (Cu – ETP), - a core, aluminum Al (A199, 5) - shell M1E copper (Cu – ETP). An outer layer (shell) in such combinations is always a copper with two different thicknesses of 1.5 mm and 0.5 mm, which means that the proportion of copper on the cross section of the bimetal was respectively 64% and 32%. T

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13

BAYGUT, Alper, Osman ÇULHA, and Tuğçe YAĞCI. "Simulation-Assisted Production of Stainless Steel Fasteners Using Pre-Deformed Raw Material by Cold Forging Method." Deu Muhendislik Fakultesi Fen ve Muhendislik 24, no. 72 (2022): 689–702. http://dx.doi.org/10.21205/deufmd.2022247201.

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The initial properties of the raw material used while producing by cold forging change the mechanical properties of the final product resulting from deformation. Depending on the amount and speed of deformation, there is an increase in strength and a decrease in formability after cold forging on the basis of the true stress - strain curve of the material. In this study, pre-deformation of 304Cu (1.4567) quality raw material used to produce fasteners in A2-70 class by wire drawing before forging and the change of the mechanical properties of the raw material, on the basis of this change, the si

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14

Elliott-Bowman, Bernadette, A. C. Cook, P. Brown, and R. S. Qin. "Electrothermomechanical Processing of High Carbon Steels." Advanced Materials Research 922 (May 2014): 132–36. http://dx.doi.org/10.4028/www.scientific.net/amr.922.132.

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Passing high density electric current through some metals has been shown to induce microstructural changes, such as grain refinement. Known as electropulsing, the process has previously been successfully applied to cold-drawn pearlitic steel wire over a very short treatment period (current density >103 A·mm-2 and pulse width <10-4s) and with low energy expenditure. Once optimised, electropulsing treatment may offer potential time-and energy-saving advantages over traditional grain refinement techniques. However, to date, very little research on the effects of electropulsing on pearlitic

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15

Zhou, Xiuwen, Xudong Liu, Yidong Qi, and Weidong Wu. "Mechanical Properties and Microstructures of Ni20Cr Micro-wires with Abnormal Plastic Deformation." High Temperature Materials and Processes 36, no. 5 (2017): 485–93. http://dx.doi.org/10.1515/htmp-2015-0261.

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AbstractNi80Cr20 (Ni20Cr, wt%) micro-wires were fabricated by the cold-drawing method with single die. Abnormal engineering strains were approximately 17.3–46.6 % for each pass. The relationship between mechanical properties and microstructures of Ni20Cr micro-wires were investigated under different engineering strains and annealing conditions. Experiment results indicate that the as-drawn NiCr micro-wires present obviously brittle fractures. The ultimate tensile strength (UTS) significantly increases from 781 to 1,147 MPa and the elongation decreases from 17.2 % to 1 % with engineering strain

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16

Gao, Xinyu, Guanjun Gao, Zhihui Li, et al. "The effect of different preparation methods on the microstructure and mechanical properties of Al-Zn-Mg-Cu alloy wire." Journal of Physics: Conference Series 2954, no. 1 (2025): 012094. https://doi.org/10.1088/1742-6596/2954/1/012094.

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Abstract The number of fasteners used in aircraft is vast, reaching millions. Aluminum alloy wire for fasteners has become a focus of research. In this study, the Al-Zn-Mg-Cu alloy wire was prepared by hot rolling and extruding methods. A comparative analysis of microstructure and mechanical properties was examined. Results indicated that the hot rolling technique yields a more homogeneous microstructure and enhances the stability of mechanical properties. Following solution treatment and aging, a significant quantity of nano-sized strengthening η′ phases developed within the alloy. This led t

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17

Hwang, Joong-Ki. "Correlation of Strain Path, Texture, Twinning, and Mechanical Properties in Twinning-Induced Plasticity Steel during Wire Drawing." Materials 13, no. 10 (2020): 2250. http://dx.doi.org/10.3390/ma13102250.

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The effect of changing the strain path on texture development, twin kinetics, and mechanical properties in twinning-induced plasticity steel was investigated to understand twinning behavior in more detail. Among the various plastic deformation processes, the wire drawing process was selected to achieve the aims of the study. Specimens of cold-drawn TWIP steel wire under the same effective strain but with different crystallographic textures were successfully fabricated using the effect of the wire drawing direction. Electron backscatter diffraction results showed that the drawn wires using both

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18

Zidani, Mosbah, Zakaria Boumerzoug, Denis Solas, and Thierry Baudin. "Temperature and Deformation Effects on the Recrystallization Microstructure and Texture of Wire Draw Steel." Materials Science Forum 550 (July 2007): 447–52. http://dx.doi.org/10.4028/www.scientific.net/msf.550.447.

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In this work, the effect of the deformation, caused by cold wire drawing, on the microstructure and the texture of low carbon steel wire (0.06 wt % C) is examined. The combined influence of the deformation level and the recrystallization temperature on the development of new grains is studied for all wires. Isothermal tests of annealing allow the determination of the critical temperature of recrystallization estimated above 450°C. The temperature effect is studied below the eutectoid level, at 500°C, 600°C and 680°C. The appearance of a homogeneous recrystallization is noted over the section o

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19

Bajor, Teresa. "Structure Analysis of Magnesium Alloy (AZ31) Wires at Different Stages of a Multistage Cold Drawing Process." Key Engineering Materials 682 (February 2016): 125–31. http://dx.doi.org/10.4028/www.scientific.net/kem.682.125.

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The formability of magnesium alloys is the subject of efforts undertaken in many research centers due to their outstanding mechanical, plastic, and above all, physical properties. For this reason, magnesium alloys have become an important material which finds broad possibilities for application in many industries: automotive, electronics, aerospace and so on.The paper presents an analysis of changes in structure of AZ31 magnesium alloy wire cold-deformed in the drawing process using interoperate heat treatment. Microstructure observations of the wire by means of optical microscopy were perform

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20

Marukha, V. I., I. I. Krymchanskii, K. A. Deev, S. I. Ripetskii, and V. A. Kleimenov. "Effect of tempering under stress on the relaxation resistance and endurance of cold-deformed steel wire." Soviet Materials Science 26, no. 3 (1990): 361–63. http://dx.doi.org/10.1007/bf00727375.

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21

Zolotorevsky, Nikolay Y., D. M. Vasiliev, and Yuri Titovets. "X-Ray Study of Microstresses in Lamellar Pearlite." Materials Science Forum 495-497 (September 2005): 1511–16. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1511.

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The material studied was commercial pearlitic steel deformed by cold drawing. Internal stresses appearing due to the plastic interaction of cementite and ferrite phases of the lamellar pearlite (interphase stresses) were examined in order to clarify the mechanisms controlling plastic behavior of the lamellar pearlite. It was shown that, while the interphase stress level is high at relatively small drawing strain, it is significantly reduced with true strain increasing up to e = 2. The high level of the interphase stress is restored after annealing of the heavily drawn wire and its repeated str

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22

Stolyarov, A. Yu, M. V. Zaitseva, and F. A. Stolyarov. "Evaluation of a possibility of implementation of the Cold Stretching technology for increasing quality of class 500 cold-deformed rebars under conditions of OJSC “MMK-Metiz”." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 76, no. 10 (2020): 1028–34. http://dx.doi.org/10.32339/0135-5910-2020-10-1028-1034.

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The new GOST 34028–2016 “Reinforcing bars for concrete-steel construction” introduced new requirements to a number of operational characteristics of reinforcement, in particular, to ensure stability of plastic characteristics. It is possible to increase the plasticity of cold-deformed reinforcement made of low-carbon steel grades and to ensure its stability by changing the chemical composition of the steel or through deformation methods of action. To solve this problem, a method of hardening with a low degree of deformation, called Cold Stretching, is widely used abroad. Technical analysis of

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23

Li, Yuyu, Bowen Yang, Tingzhuang Han, et al. "Numerical study on the plastic deformation behavior of AZ31 magnesium alloy under different loading conditions." Materials Research Express 8, no. 12 (2021): 126505. http://dx.doi.org/10.1088/2053-1591/ac3dac.

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Abstract Based on the stress characteristics of the instantaneous cross-section deformation of the wall reducing section during the cold rolling of two-roll Pilger pipes, the rectangular samples with 0° and 90° to the extrusion direction (ED) were cut from the extruded AZ31 magnesium alloy bar for 3% pre-deformation test to simulate its stress state equivalently. The sample was then cut from the pre-deformed sample by wire cutting for secondary compression, and the sample that is not pre-deformed is selected. The mechanical behavior and texture evolution of AZ31 magnesium alloy under different

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24

Brisset, François, Anne-Laure Helbert, and Thierry Baudin. "In Situ Electron Backscatter Diffraction Investigation of Recrystallization in a Copper Wire." Microscopy and Microanalysis 19, no. 4 (2013): 969–77. http://dx.doi.org/10.1017/s1431927613000299.

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AbstractThe microstructural evolution of a cold drawn copper wire (reduction area of 38%) during primary recrystallization and grain growth was observed in situ by electron backscatter diffraction. Two thermal treatments were performed, and successive scans were acquired on samples undergoing heating from ambient temperature to a steady state of 200°C or 215°C. During a third in situ annealing, the temperature was continuously increased up to 600°C. Nuclei were observed to grow at the expense of the deformed microstructure. This growth was enhanced by the high stored energy difference between

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25

Ivanov, Svetlana, Mirjana Rajcic-Vujasinovic, Jasmina Petrovic, Vesna Grekulovic, and Srba Mladenovic. "Electrochemical investigation of cold worked copper in alkaline solution with the presence of potassium ethyl xanthate." Chemical Industry 68, no. 3 (2014): 279–88. http://dx.doi.org/10.2298/hemind130427055i.

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This paper presents the investigation results of the electrochemical behavior of copper in 1 M Na2CO3 solution in the presence of potassium ethyl xanthate (KEtX) with different concentrations. Tests were conducted on copper samples obtained without deformation and with deformation of 83, 91 and 99 %. Samples were obtained by cold drawing of wire, which was previously obtained by dip-forming procedure. Corrosion behavior of cold deformed copper wire is characterized by its open circuit potential and behavior during anodic polarization. Experiments were carried out in aqueous solution 1 M Na2CO3

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26

Zatrimaylov, Kirill. "On Filaments, Prolate Halos and Rotation Curves." Physical Sciences Forum 2, no. 1 (2021): 19. http://dx.doi.org/10.3390/ecu2021-09298.

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We propose a simple geometrical mechanism for the flattening of galactic rotation curves at large distances, the local compression of field lines around their planes induced either by the presence of thin string-like objects at the centers of galaxies or by elongated dark mater halos, and elaborate on its possible role in nature. We fit 83 rotation curves from the SPARC database with logarithmic potentials produced by a thin “wire” at the origin and then, after selecting 2 galaxies that yield the most interesting fits, analyze them with an alternative model, deformed versions of two popular mo

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27

Halaczek, Dariusz. "Influence of Single and Summary Deformation for the Change of Limit Stress in the Drawing Process Based on the Pelczynski Diagram." Solid State Phenomena 246 (February 2016): 183–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.246.183.

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Limit stress diagram by Pelczyński was constructed in the coordinates σm - σH (σm - average stress for the process, σH - stress according to the Huber hypothesis) based on the hypothesis Huber - de Saint Venant and is consistent connection between the two hypotheses. This diagram allows for presentation the dangerous states of stresses for arbitrary stress state so plane and space (biaxial and triaxial). It also allows for the analysis of stress states occurring in various processes of plastic forming. To determine the state stresses occurring in the technological process starts from the comp

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28

Shchitsyn, Yuri, Maksim Kartashev, Ekaterina Krivonosova, Tatyana Olshanskaya, and Dmitriy Trushnikov. "Formation of Structure and Properties of Two-Phase Ti-6Al-4V Alloy during Cold Metal Transfer Additive Deposition with Interpass Forging." Materials 14, no. 16 (2021): 4415. http://dx.doi.org/10.3390/ma14164415.

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The paper deals with the main formation patterns of structure and properties of a titanium alloy of the Ti-6Al-4V system during additive manufacturing using cold metal transfer (CMT) wire deposition. The work aims to find the optimal conditions for layer-by-layer deposition, which provides the high physical and mechanical properties of the titanium alloy of the Ti-6Al-4V system hybrid, additively manufactured using CMT deposition. Particular attention is paid to interpass forging during the layered printing of the product. Additionally, we investigate how the heat treatment affects the structu

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29

Han ¶, K., A. C. Lawson, J. T. Wood, J. D. Embury, R. B. Von Dreele, and J. W. Richardson. "Internal stresses in cold-deformed Cu–Ag and Cu–Nb wires." Philosophical Magazine 84, no. 24 (2004): 2579–93. http://dx.doi.org/10.1080/14786430410001689981.

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30

Unger, Andreas, Walter Sextro, Simon Althoff, et al. "Experimental and Numerical Simulation Study of Pre-deformed Heavy Copper Wire Wedge Bonds." International Symposium on Microelectronics 2014, no. 1 (2014): 000289–94. http://dx.doi.org/10.4071/isom-tp44.

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To implement a self-optimization technique for ultrasonic wire bonding machines, a model of the pre-deformation phase is essential. The local material characteristics change abruptly because of the cold work during deformation. Investigations confirm a significant influence on the material properties of the contact members during touchdown. In a first step this paper validates the importance of modeling the pre-deformation experimentally. In a second step, the paper presents a numerical study of the elasto-plastic deformation based on the finite element method. This model includes measured ove

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31

Jian, Shichao, Xudong An, Qianqian Wang, et al. "Exploration on the Effect of Pretreatment Conditions on Hydrogen-Induced Defects in Pure Titanium by Positron Annihilation Spectroscopy." Metals 12, no. 4 (2022): 595. http://dx.doi.org/10.3390/met12040595.

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Electrolytic hydrogen charging experiments on cold-deformed and well-annealed (annealing at 700 °C for 2 h) pure titanium samples were carried out, respectively. Positron annihilation spectroscopy and X-ray diffraction were used to characterize all experimental samples to explore the formation of vacancy defects and the storage form of hydrogen in pure titanium after charging. Results showed that hydrides formed in well-annealed samples after electrolytic hydrogen charging, but a new phase in the cold-deformed samples was not observed. The annealed samples formed vacancy-type defects in the pr

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Mohammad, Shahrin, M. Md Tahir, Cher Siang Tan, and Poi Ngian Shek. "Experimental Investigation on Wide-Span Cold-Formed Steel Roof Truss System." Applied Mechanics and Materials 166-169 (May 2012): 1304–7. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1304.

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The needs of environmental conservation and speed development in construction industry today have forced the search for better technologies in structural roof truss construction. Cold-formed section is a better choice for roof truss system in sustainable design with several advantages e.g. reduce cutting down of trees, speedy in construction, stronger, lighter and flexible in erection. However the stability issues occurred when wide-span roof truss is implemented with thin-walled cold-formed steel member. A full scale testing for a 25 meter wide-span roof truss system was carried out at Univer

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33

Choi, Eunsoo, Dong Joo Kim, Chanyeong Jeon, and Seungmin Gin. "New SMA Short Fibers for Cement Composites Manufactured by Cold Drawing." Journal of Materials Science Research 5, no. 2 (2016): 68. http://dx.doi.org/10.5539/jmsr.v5n2p68.

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<p class="1Body">This study suggests new shape memory alloy reinforcing fibers manufactured by cold drawing method. This study prepares NiTi shape memory alloy (SMA) wires with diameter of 1.0 mm. Then, the wires are elongated by cold drawing and, thus, the diameters are reduced to 0.93 or 0.965 mm, respectively. This procedure introduces prestrain into the wires. When elongated SMA wires are heated, the shape memory effect is activated; this process recovers the deformed length as well as the reduced diameter due to Poisson’s effect. Cold drawn wires with diameters of 0.93 and 0.965 mm

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34

Choi, Eunsoo, Dong Joo Kim, Chanyeong Jeon, and Seungmin Gin. "New SMA Short Fibers for Cement Composites Manufactured by Cold Drawing." Journal of Materials Science Research 5, no. 2 (2016): 74. http://dx.doi.org/10.5539/jmsr.v5n2p74.

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Анотація:

<p class="1Body">This study suggests new shape memory alloy reinforcing fibers manufactured by cold drawing method. This study prepares NiTi shape memory alloy (SMA) wires with diameter of 1.0 mm. Then, the wires are elongated by cold drawing and, thus, the diameters are reduced to 0.93 or 0.965 mm, respectively. This procedure introduces prestrain into the wires. When elongated SMA wires are heated, the shape memory effect is activated; this process recovers the deformed length as well as the reduced diameter due to Poisson’s effect. Cold drawn wires with diameters of 0.93 and 0.965 mm

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35

Ławrynowicz, Z. "Effect of The Degree of Cold Work and Sensitization Time on Intergranular Corrosion Behavior in Austenitic Stainless Steel." Advances in Materials Science 19, no. 1 (2019): 32–43. http://dx.doi.org/10.2478/adms-2019-0003.

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AbstractPresent paper deals with the influence of a wide range of cold rolling (5, 10, 15 and maximum 40% cold deformation) and the sensitization time (aging at 700°C for 0.12, 0.5, 1, 4, 16 and 32 hours) on intergranular corrosion (IGC). Intergranular corrosion of commercial stainless steel type X6CrNiTi18-10 (1.4541, AISI 321) is frequently observed in several process environments. These localized attacks are normally attributed to the carbide precipitation and concomitant depletion of chromium near grain boundary due to steel exposure to sensitization temperature. Such undesirable microchem

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36

Zhou, Y. T., X. H. Shao, S. J. Zheng, and X. L. Ma. "Structure evolution of the Fe3C/Fe interface mediated by cementite decomposition in cold-deformed pearlitic steel wires." Journal of Materials Science & Technology 101 (February 2022): 28–36. http://dx.doi.org/10.1016/j.jmst.2021.05.061.

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37

Jo, Sang-Hyeon, and Seong-Hee Lee. "Changes in Microstructure, Mechanical and Electrical Properties with Progress of Cold Wire-Drawing for AA1070." Korean Journal of Metals and Materials 61, no. 11 (2023): 867–73. http://dx.doi.org/10.3365/kjmm.2023.61.11.867.

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Commercial AA1070 alloy for electrical wire is severely deformed by the drawing process when a rod with a diameter of 2 mm is greatly reduced to 0.4 mm by multi-pass. Changes in the microstructure, mechanical properties, and electrical properties of the Al alloy during the wire-drawing process were investigated in detail. The as-drawn Al wires showed a deformation structure in which the grains are greatly elongated in the drawing direction, even though recovery and/or partial recrystallization occurred more actively in the specimens which had more than 84% in reduction of cross-sectional area

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38

Kuhfuss, Bernd, Eric Moumi, Brigitte Clausen, Jeremy Epp, and Bernd Koehler. "Investigation of Deformation Induced Martensitic Transformation during Incremental Forming of 304 Stainless Steel Wires." Key Engineering Materials 651-653 (July 2015): 645–50. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.645.

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Wires with 1 mm initial diameter have been reduced between 10 and 64 percent at different temperatures and strain rates by infeed rotary swaging, which is an incremental cold forming process mainly used for rods and pipes. The volume fraction of martensite in the deformed wires has been determined by X-Ray diffraction and by magnetic induction for different processing parameters. Measurements show that for already small percentage of reduction, martensite is present in the wires and its amount changes with the strain rate and temperature. While for smaller strain rates at room temperature the

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39

Castro, Cerda F., C. Goulas, I. Sabirov, S. Papaefthymiou, A. Monsalve, and R.H. Petrov. "Microstructure, texture and mechanical properties in a low carbon steel after ultrafast heating." Materials Science and Engineering A 672 (August 30, 2016): 108–20. https://doi.org/10.1016/j.msea.2016.06.056.

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Heating experiments in a wide range of heating rates from 10 to 1200 °C/s and subsequent quenching without isothermal soaking have been carried out on a low carbon steel. The thermal cycles were run on two different cold rolled microstructures, namely ferrite + pearlite and ferrite + martensite. It is shown that the average ferritic grain size, the ferrite grain size distribution, the phase volume fractions and the corresponding mechanical properties (ultimate tensile strength and ductility) after quenching are strongly influenced by the heating rates and the initial microstructure. The fe

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40

Vandermeer, R. A., Erik M. Lauridsen, and Dorte Juul Jensen. "Growth Rate Distributions during Recrystallization of Copper." Materials Science Forum 467-470 (October 2004): 197–202. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.197.

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New 3D X-ray diffraction microscopy (3DXRD) experiments on recrystallizing bulk grains that nucleated and grew in a 92% cold deformed pure copper during in situ annealing at both 150° C and 160° C are described. Nucleation times, growth velocities and apparent activation energies were determined for each grain. A wide range of apparent activation energies was observed but the average of 123 kJ/mol agreed well with earlier recrystallization experiments on a similar purity copper. It was clear that each recrystallized grain had its own individual characteristics; the grains do not all behave ali

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41

Cantú-Salazar, Lisette, and Stephanie Lippert. "Deformed wings in the bumblebee Bombus terrestris (Linnaeus, 1758) in Luxembourg." Bulletin de la Société des naturalistes luxembourgeois 126 (July 22, 2024): 53–58. http://dx.doi.org/10.59513/snl.2024.126.053.

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Deformed wing virus (DWV), a persistent pathogen in European honeybees contributing to colony losses, also affects wild bees, including bumblebees, and a wide range of other insects. Bumblebees play a crucial role in crop production in temperate and cold ecosystems. A case of wild buff-tailed bumblebee workers Bombus terrestris (Linnaeus, 1758) showing visible clinical symptoms associated with overt, acute DWV infection is documented in Luxembourg, the first report for this bumblebee species widely distributed in the country. Further investigation is needed in Luxembourg to understand the impa

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42

Ławrynowicz, Zdzisław. "Diagnostics of the effect of prior cold deformation and aging time on intergranular corrosion resistance in case of austenitic stainless steel." MATEC Web of Conferences 182 (2018): 01011. http://dx.doi.org/10.1051/matecconf/201818201011.

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Intergranular corrosion of commercial stainless steel type X6CrNiTi18-10 (1.4541, AISI 321) is frequently observed in several process environments. These localized attacks are normally attributed to the carbide precipitation and concomitant depletion of chromium near grain boundary due to steel exposure to sensitization temperature. Such undesirable microchemistry is expected to be changed further if the material undergoes deformation prior to sensitization. Present paper deals with the influence of a wide range of cold rolling (5, 10, 15 and maximum 40% cold deformation) and the sensitization

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43

Popova, E. N., and Vladimir V. Popov. "Peculiarities of Structure and Texture of High-Strength Cu-Nb Composites." Diffusion Foundations 1 (April 2014): 201–18. http://dx.doi.org/10.4028/www.scientific.net/df.1.201.

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The evolution of structure of high-strength heavily deformed Cu-Nb composites processed by two different methods (melt-and-deform and bundle-and-deform) is briefly reviewed based on the authors’ (with their coauthors) original studies and the available publications. Specific features of their texture are considered. In particular, it is demonstrated that the ribbon-like Nb filaments possess not only the sharp fiber texture but the limited texture with components characteristic of cold-drawn Nb. The semi-coherent and amorphous state of Cu/Nb interfaces is discussed. The thermal stability of sin

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44

de las Cuevas, F., Mónica Reis, A. Ferraiuolo, et al. "Hall-Petch Relationship of a TWIP Steel." Key Engineering Materials 423 (December 2009): 147–52. http://dx.doi.org/10.4028/www.scientific.net/kem.423.147.

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The grain size dependence of the tensile properties of a TWIP steel has been determined for a wide range of grain sizes obtained by grain growth after complete recrystallization of cold rolled material. The near-linear stress-strain behaviour typical of either TWIP steels or other materials that deform by twinning has been observed, the work hardening rate being larger for the smaller grain sizes. The Hall-Petch slope increases as a function of strain, from 350 MPa μm1/2 for the yield stress to 630 MPa μm1/2 for the maximum uniform strain in the tensile tests, ε  0.40. Profuse twinning is obs

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45

Viana, Júlio C., João F. Mano, Zlatan Z. Denchev, Maria Jovita Oliveira, and Maria Clara Cramez. "Nanostructure Evolution during Uni-Axial Deformation of PET – A WAXS and SAXS Study Using Synchrotron Radiation." Materials Science Forum 514-516 (May 2006): 1583–87. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1583.

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In this work, the structural evolution and damage of PET during stretching is assessed by wide- and small-angle X-ray scattering (respectively, WAXS and SAXS) experiments in specimens pre-deformed at different strain levels (ex-situ characterization). Injection moulded PET rectangular tensile specimens were stretched (at 2 mm/min) into the plastic domain in a universal test machine at different strain levels at room temperature. The structure of the central zone of the deformed specimens was then characterized by WAXS and SAXS experiments using an X-ray synchrotron source. PET was initially (b

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46

Chen, Y. Z., G. Csiszár, J. Cizek, et al. "Defect Recovery in Severely Deformed Ferrite Lamellae During Annealing and Its Impact on the Softening of Cold-Drawn Pearlitic Steel Wires." Metallurgical and Materials Transactions A 47, no. 2 (2015): 726–38. http://dx.doi.org/10.1007/s11661-015-3263-z.

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47

Li, Rui, Binguo Fu, Yufeng Wang, et al. "Effect of Cold-Rolling Reduction on Recrystallization Microstructure, Texture and Corrosion Properties of the X2CrNi12 Ferritic Stainless Steel." Materials 15, no. 19 (2022): 6914. http://dx.doi.org/10.3390/ma15196914.

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X2CrNi12 ferritic stainless steel has a wide range of application prospects in the railway transportation, construction, and automobile fields due to its excellent properties. The properties of X2CrNi12 ferritic stainless steel can be further improved by cold-rolling and subsequent annealing treatment. The purpose of this work is to investigate the effect of cold-rolling reduction on the microstructure, texture and corrosion properties of the recrystallized X2CrNi12 ferritic stainless steel by using SEM, TEM, EBSD and electrochemical testing technology. The results show that the crystal orient

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48

Saveliev, Dmitry E. "Chromitite deposits of Ufaley ultramafic massif (South Urals)." Georesursy 24, no. 2 (2022): 197–209. http://dx.doi.org/10.18599/grs.2022.3.17.

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Data on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted restite from partial melting of mantle peridotites. Relatively wide variations in the composition of ore-forming chromian spinel grains (#Cr 0.6–0.8) and noticeable metamorphism of disseminated ores with replacement of chromite by Cr-magnetite are noted. It is assumed that chromitite bodies were initially formed under the conditions of the upper m

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49

Avtokratova, Elena, Oleg Sitdikov, Oksana Mukhametdinova, and Michael Markushev. "High Strain Rate Superplasticity in an Al-Mg-Sc-Zr Alloy Produced by Equal Channel Angular Pressing and Subsequent Cold and Warm Rolling." Materials Science Forum 710 (January 2012): 223–28. http://dx.doi.org/10.4028/www.scientific.net/msf.710.223.

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Superplastic (SP) properties of an Al−5%Mg−0.2%Sc−0.08%Zr alloy subjected to equal channel angular pressing (ECAP) at T=325°C with an effective stain of ~ 8 and subsequent rolling at the same and ambient temperatures were studied. It has been shown that the formation of ultrafine grained (UFG) structure with the grain size of about 1 μm and the volume fraction 0.6-0.7 under ECAP resulted in exceptionally high SP ductilities in a wide temperature - strain rate range. Maximum elongations ~3300% appeared at 475°C and the strain rate () of 5.6×10-2s-1. Subsequent warm rolling with a total reductio

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50

Karpenko, Michail, Alan McClintock, Marlon Helms, and Holger Heinzel. "Seismic Requirements for the Welding and Inspection of the K-Area in Hot Rolled Products to AS/NZS 3679.1." Key Engineering Materials 763 (February 2018): 197–206. http://dx.doi.org/10.4028/www.scientific.net/kem.763.197.

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Hot-rolled products such as beams are usually subject to rotary straightening as a last step in the manufacturing process. This operation may change the properties of the plastically deformed area by strain hardening. The affected regions of the beam are referred to as the “k-area”, as shown in Figure 1. Strain hardening reduces the ductility and notch toughness of the steel and can potentially lead to cracking in the k-area when welding is carried out in restrained conditions e.g. addition of stiffeners by welding. The phenomenon was reported for wide flange beams in the US literature in the

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