Relevant bibliographies by topics / Non-isothermal forming / Journal articles
To see the other types of publications on this topic, follow the link: Non-isothermal forming.

Journal articles on the topic 'Non-isothermal forming'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Non-isothermal forming.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ding, Yi, Xiang Jun Liu, Yu Qin Guo, and Wei Chen. "Warm Forming Simulation of Dual-Phase Steel Tailor-Welded Blanks Based on Thermo-Mechanical Coupled Method." Advanced Materials Research 291-294 (July 2011): 494–98. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.494.

Full text
Abstract:
A thermo-mechanical coupled finite element model for warm forming of dual-phase steel (DP) laser tailor-welded blanks (TWBs) was established based on ABAQUS software. The isothermal deep drawing of rectangular cups at elevated temperatures and the non-isothermal deep drawing at the temperature of 400°C were simulated. The distributions of temperature and differences between the isothermal and non-isothermal conditions were discussed. The results show that the temperature has great effect on the warm forming of DP-TWBs, and it achieves the best formability at the forming temperature of 400°C, a
APA, Harvard, Vancouver, ISO, and other styles
2

Kim, Hong Seok, Muammer Koc, and Jun Ni. "Determination of Proper Temperature Distribution for Warm Forming of Aluminum Sheet Materials." Journal of Manufacturing Science and Engineering 128, no. 3 (2005): 622–33. http://dx.doi.org/10.1115/1.2162913.

Full text
Abstract:
In warm forming of aluminum sheet materials, determination, realization, and maintenance of optimal temperature gradient is a key process parameter for increased formability. In this study, a two-phase procedure for efficient and accurate determination of proper temperature condition for warm forming of aluminum sheet metal blanks is presented using a hybrid 3D isothermal/non-isothermal finite element analysis (FEA) and design of experiments (DOE) approach. First, the relative trend, priority and overall temperature ranges of aluminum sheet metal blank regions are obtained using isothermal FE
APA, Harvard, Vancouver, ISO, and other styles
3

Wu, Xintong, Lihua Zhan, Youliang Yang, Yongqian Xu, Qiliang Zhang, and Xiaobo Yang. "Effects of Specimen Thickness and Non-Isothermal Process on Creep Behavior of AA2024 Aluminum Alloy." Metals 13, no. 2 (2023): 409. http://dx.doi.org/10.3390/met13020409.

Full text
Abstract:
Fiber metal laminate (FML) is a kind of lightweight material that has garnered much attention in recent years due to its excellent properties under tensile, flexure, and impact conditions. However, little attention has been paid to the evolution of aluminum alloy during the FML forming process. In this paper, the effects of specimen thickness and the non-isothermal process on creep behavior of AA2024 aluminum alloy, which is generally used in FMLs, were systematically studied in terms of creep strain, mechanical properties, and microstructure. The results show that the microstructure and mecha
APA, Harvard, Vancouver, ISO, and other styles
4

T. Mayavan. "Artificial Neural Networks to the Analysis of AISI 304 Steel Sheets through Limiting Drawing Ratio Test." Journal of Electrical Systems 20, no. 3 (2024): 1161–68. http://dx.doi.org/10.52783/jes.3463.

Full text
Abstract:
Drawbeads are employed in the formation of intricately shaped draw pieces to modify the stress state in specific areas of the drawpiece or to equalize the material's flow resistance along its perimeter. A unique drawbead simulator for calculating the factor of friction on the drawbead is presented in this article. The objective of this manuscript is to employ artificial neural networks (ANNs) to comprehend the impact of the primary friction process parameters, namely sample orientation concerning the rolling direction of the steel sheets, counter-sample surface roughness, and lubricant conditi
APA, Harvard, Vancouver, ISO, and other styles
5

Sae-Eaw, Nuttakorn, Mahathep Sukpat, and Yingyot Aue-u-Lan. "Investigation of Thermal Effect on Hot Forging Process of Yoke Flange by Finite Element Modeling." Key Engineering Materials 728 (January 2017): 54–59. http://dx.doi.org/10.4028/www.scientific.net/kem.728.54.

Full text
Abstract:
Finite Element Modeling (FEM) has been employed widely to analyze material flow behavior and identify potential defects in a hot forging process before try-out. Normally, the isothermal assumption should be used to simulate this process because the forming time was extremely shot around 0. 5 s – 1 s due to a high velocity of a press machine. However, in some cases when the contact pressure and contact area are extremely high, the heat could significantly dissipate to the forming dies. In case of Yoke flange simulation the isothermal condition could not be used to identify the defect as occurri
APA, Harvard, Vancouver, ISO, and other styles
6

Liu, Jun, Ming Jen Tan, Sylvie Castagne, and Samuel C. V. Lim. "An Optimized Sheet Metal Forming Process Using Non-Isothermal Heating System." Advanced Materials Research 500 (April 2012): 385–90. http://dx.doi.org/10.4028/www.scientific.net/amr.500.385.

Full text
Abstract:
The process parameters used in the hybrid superplastic forming have been optimized. Since the hybrid process was a combination of hot drawing and gas blow forming, the effects related with the two forming phases were taken into account to facilitate the process design. The punch shape has been modified. A two-stepped punch in accordance with the die geometry with length of 43 mm was used in this work. Finite element modeling (FEM) was carried out to detect the low-plastic-strain areas, where the materials would have capabilities to be deformed more as the temperature increased. The non-isother
APA, Harvard, Vancouver, ISO, and other styles
7

Camberg, Alan A., Tobias Erhart, and Thomas Tröster. "A Generalized Stress State and Temperature Dependent Damage Indicator Framework for Ductile Failure Prediction in Heat-Assisted Forming Operations." Materials 14, no. 17 (2021): 5106. http://dx.doi.org/10.3390/ma14175106.

Full text
Abstract:
Heat-assisted forming processes are becoming increasingly important in the manufacturing of sheet metal parts for body-in-white applications. However, the non-isothermal nature of these processes leads to challenges in evaluating the forming limits, since established methods such as Forming Limit Curves (FLCs) only allow the assessment of critical forming strains for steady temperatures. For this reason, a temperature-dependent extension of the well-established GISSMO (Generalized Incremental Stress State Dependent Damage Model) fracture indicator framework is developed by the authors to predi
APA, Harvard, Vancouver, ISO, and other styles
8

Ma, Xinwu. "SHAPE OPTIMIZATION DESIGN FOR PREFORM DIE IN NON-ISOTHERMAL METAL FORMING." Chinese Journal of Mechanical Engineering 39, no. 05 (2003): 145. http://dx.doi.org/10.3901/jme.2003.05.145.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Liu, Dong, Jiangping Ding, Xinyu Fan, Xinyao Lin, and Yingdan Zhu. "Non-isothermal forming of glass fiber/polypropylene commingled yarn fabric composites." Materials & Design 57 (May 2014): 608–15. http://dx.doi.org/10.1016/j.matdes.2014.01.027.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lee, Chung An, Myoung-Gyu Lee, Oh Suk Seo, Ngoc-Trung Nguyen, Ji Hoon Kim, and Heon Young Kim. "Cyclic behavior of AZ31B Mg: Experiments and non-isothermal forming simulations." International Journal of Plasticity 75 (December 2015): 39–62. http://dx.doi.org/10.1016/j.ijplas.2015.06.005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Zheng, W. T., Donato Sorgente, G. Palumbo, et al. "Application of Blank Optimization Method in Deep Drawing of Rectangular Magnesium Alloy Cups under Non-Isothermal Condition." Key Engineering Materials 344 (July 2007): 333–39. http://dx.doi.org/10.4028/www.scientific.net/kem.344.333.

Full text
Abstract:
Using the optimum blank in sheet metal forming process not only can decrease the material wasting but also avoid possible defects such as local severe thinning, wrinkling and fracture. Since it is practical technology for industrial production, many blank optimization methods have been proposed and their validity was verified by some forming tests of typical or complicated components. However, all the forming tests were carried out at room temperature or under isothermal condition. In present work, a blank optimization method was employed to evaluate its efficiency in deep drawing of rectangul
APA, Harvard, Vancouver, ISO, and other styles
12

Barimani Varandi, Abozar. "The non-isothermal hot deep drawing of AA5083 aluminum alloy." Mechanics & Industry 21, no. 1 (2020): 112. http://dx.doi.org/10.1051/meca/2019090.

Full text
Abstract:
The present work is focused on the hot deep drawing process for cylindrical 5083 aluminum alloy parts, by superimposing a thermal gradient between the blank center-flange region. The imprtance of application of forming processes at elevated temperatures, in improving the formability, has increasingly attracted attention in recent years. As a case study, the experimental and numerical tests were performed at three speeds (60, 200 and 378 mm min−1) from room temperature (RT) up to 0.9 melting point, inspired by the advent of extraordinary superplastic behavior of AA5083 in hot condition. In part
APA, Harvard, Vancouver, ISO, and other styles
13

Lapuk, S. E., and A. V. Gerasimov. "Kinetic stability and glass-forming ability of phenacetin by fast scanning calorimetry." Журнал общей химии 93, no. 5 (2023): 794–800. http://dx.doi.org/10.31857/s0044460x23050141.

Full text
Abstract:
In the present work, an amorphous active pharmaceutical ingredient, phenacetin, was obtained by fast scanning calorimetry. The critical cooling rate and kinetic fragility of its supercooled melt were determined. The process of cold crystallization of phenacetin was studied by methods of isothermal and non-isothermal kinetics. It was found that the best correspondence between the two kinetic approaches is observed in the case of using the Nakamura crystallization model. The results obtained can find their application in the development of approaches to obtaining amorphous forms of drugs prone t
APA, Harvard, Vancouver, ISO, and other styles
14

Singh, Raghvendra Pratap, Karanpal Singh Shekhawat, Malay K. Das, and Krishnamurthy Muralidhar. "Geological sequestration of CO2 in a water-bearing reservoir in hydrate-forming conditions." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 75 (2020): 51. http://dx.doi.org/10.2516/ogst/2020038.

Full text
Abstract:
Higher concentration of carbon dioxide in the atmospheric air is a major environmental challenge and requires immediate attention for quicker mitigation. In that respect, the novel idea of CO2 sequestration in geological settings is worth examining from a quantitative perspective. In the present study, numerical simulation of CO2 injection into a porous reservoir is performed. The selected reservoir presents suitable thermodynamic conditions for CO2 hydrate formation. Unsteady simulations are carried out in one space dimension under isothermal and non-isothermal frameworks. An additional simul
APA, Harvard, Vancouver, ISO, and other styles
15

Breuer, U., and M. Neitzel. "High Speed Stamp Forming of Thermoplastic Composite Sheets." Engineering Plastics 4, no. 2 (1996): 147823919600400. http://dx.doi.org/10.1177/147823919600400205.

Full text
Abstract:
Nowadays great efforts are undertaken in order to improve the performance/cost balance of fabric reinforced polymeric composites via high-speed manufacturing and shaping processes. In this paper a low-cycle non-isothermal stamp forming process is described with all related processing parameters. Best results were achieved by using a well consolidated sheet, heated by an infrared technique and pressed in a matched die tool.
APA, Harvard, Vancouver, ISO, and other styles
16

Breuer, U., and M. Neitzel. "High Speed Stamp Forming of Thermoplastic Composite Sheets." Polymers and Polymer Composites 4, no. 2 (1996): 117–23. https://doi.org/10.1177/096739119600400205.

Full text
Abstract:
Nowadays great efforts are undertaken in order to improve the performance/cost balance of fabric reinforced polymeric composites via high-speed manufacturing and shaping processes. In this paper a low-cycle non-isothermal stamp forming process is described with all related processing parameters. Best results were achieved by using a well consolidated sheet, heated by an infrared technique and pressed in a matched die tool.
APA, Harvard, Vancouver, ISO, and other styles
17

Cabrera, N. O., C. T. Reynolds, B. Alcock, and T. Peijs. "Non-isothermal stamp forming of continuous tape reinforced all-polypropylene composite sheet." Composites Part A: Applied Science and Manufacturing 39, no. 9 (2008): 1455–66. http://dx.doi.org/10.1016/j.compositesa.2008.05.014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Kim, Yong H., and R. H. Wagoner. "A 3-D finite element method for non-isothermal sheet-forming processes." International Journal of Mechanical Sciences 33, no. 11 (1991): 911–25. http://dx.doi.org/10.1016/0020-7403(91)90011-q.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Cwudziński, A. "Numerical And Physical Simulation Of Liquid Steel Behaviour In One Strand Tundish With Subflux Turbulence Controller." Archives of Metallurgy and Materials 60, no. 3 (2015): 1581–86. http://dx.doi.org/10.1515/amm-2015-0276.

Full text
Abstract:
AbstractThis paper presents the results of computer simulations (Ansys-Fluent) and laboratory experiments (physical water model) carried out to describe the motion of steel flow in the tundish. The facility under investigation is a single-nozzle slab tundish. The internal geometry of consider object was changed by flow control device i.e. subflux turbulence controller (STC). In order to obtain a complete hydrodynamic picture in the tundish furniture variants tested, the computer simulations were performed for both isothermal and non-isothermal conditions. From the performed computer simulation
APA, Harvard, Vancouver, ISO, and other styles
20

Chung, S. H., and S. M. Hwang. "Optimal process design in non-isothermal, non-steady metal forming by the finite element method." International Journal for Numerical Methods in Engineering 42, no. 8 (1998): 1343–90. http://dx.doi.org/10.1002/(sici)1097-0207(19980830)42:8<1343::aid-nme408>3.0.co;2-b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

An, Wei Ke, An Hui Cai, Yun Luo, Tie Lin Li, and Xiao Song Li. "Glass Forming Ability and Non-Isothermal Crystallization Kinetics of Zr64Al10.1Cu11.7Ni14.2 Metallic Glass." Advanced Materials Research 139-141 (October 2010): 493–97. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.493.

Full text
Abstract:
The glass forming ability, thermal stability and non-isothermal crystallization kinetics of Zr64Al10.1Cu11.7Ni14.2 glass forming alloy were investigated. Its maximum glass forming dimension is up to 5mm and its critical cooling rate is less than 40Ks-1. The apparent activation energies derived from the Kissinger for Eg, Ex, Ep1 and Ep2 are 244.97±12.90, 264.63±10.18, 268.75±40.10 and 222.34±24.12 KJmol-1, respectively. The fragility parameter m is about 20.27, indicating its better thermal stability and glass forming ability.
APA, Harvard, Vancouver, ISO, and other styles
22

Benamor, Ahmed, Cheikh Kadiri, Yazid Derouiche, and Ameur Ouali. "Investigating the thermal behavior and dehydroxylation kinetics of bentonite: isothermal and non-isothermal study." High Temperatures-High Pressures 53, no. 4 (2024): 289–308. http://dx.doi.org/10.32908/hthp.v53.1505.

Full text
Abstract:
This paper aims to study the crystallization kinetics of local bentonite taken from the Maghnia region of Algeria after conducting the toasting process to powder with different temperature degrees 200, 400, 500, 700, 800, 900, 1000°C and 1100°C. The material was examined by differential thermal analysis (DTA) at different heating rates (10–50°C/min), and X ray diffraction (XRD). We used also Infrared Spectroscopy to detect the vibrations characteristic of the chemical bonds and to analyze the molecules forming the material. Scanning electron Microscopy (SEM) has been used to investigate the be
APA, Harvard, Vancouver, ISO, and other styles
23

Saklakoğlu, Nurşen, S. Gencalp, and Şefika Kasman. "The Effects of Cooling Slope Casting and Isothermal Treatment on Wear Behavior of A380 Alloy." Advanced Materials Research 264-265 (June 2011): 42–47. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.42.

Full text
Abstract:
In this study, A380 aluminum alloy feedstock produced with cooling slope casting was exposed to isothermal treatment to obtain a globular microstructure which is a key feature for semisolid forming. The dendritic primary phase in the conventionally cast A380 alloy has readily transformed into a non-dendritic one in ingots cast over a cooling plate from pouring temperatures between 615, 630 and 650 °C. After the casting process, isothermal treatment was carried out at 565 °C in induction unit. Isothermal treatment yields a globular microstructure. To determine the tribological properties of thi
APA, Harvard, Vancouver, ISO, and other styles
24

Semiatin, S. L., E. W. Collings, V. E. Wood, and T. Altan. "Determination of the Interface Heat Transfer Coefficient for Non-Isothermal Bulk-Forming Processes." Journal of Engineering for Industry 109, no. 1 (1987): 49–57. http://dx.doi.org/10.1115/1.3187094.

Full text
Abstract:
Experimental and analytical techniques have been developed for the determination of the interface heat transfer coefficient for nonisothermal bulk-forming processes. A fixture consisting of two flat IN-100 alloy dies was instrumented with high-response thermocouples. With this tooling, heat-transfer experiments were conducted in which (1) the two dies were heated to different temperatures and brought together under varying pressure levels and (2) the two dies were heated to the same temperature and were used to upset an aluminum alloy 2024-0 ring specimen heated to a higher temperature. Data f
APA, Harvard, Vancouver, ISO, and other styles
25

Hufschmidt, M., M. Modigell, and J. Petera. "Modelling and simulation of forming processes of metallic suspensions under non-isothermal conditions." Journal of Non-Newtonian Fluid Mechanics 134, no. 1-3 (2006): 16–26. http://dx.doi.org/10.1016/j.jnnfm.2005.10.006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Di Francesco, James. "Star-forming Substructure within Molecular Clouds." Proceedings of the International Astronomical Union 8, S292 (2012): 29–34. http://dx.doi.org/10.1017/s1743921313000185.

Full text
Abstract:
AbstractWide-field far-infrared/submillimeter continuum maps of molecular clouds by the Herschel Space Observatory GBS and HOBYS surveys are revealing the star-forming substructures that lead to star formation in dense gas. In particular, these maps have revealed the central role in clouds of filaments, likely formed through turbulent motions. These filaments appear to be non-isothermal and fragment into cores only when their column densities exceed a stability threshold. Organizations of filament networks suggest the relative role of turbulence and gravity can be traced in different parts of
APA, Harvard, Vancouver, ISO, and other styles
27

Yu, Zu Jian, and Jian Hui Li. "Temperature Controlling System Design of Non-Isothermal Deep Drawing Mould for Magnesium Alloy Sheet." Advanced Materials Research 887-888 (February 2014): 1129–32. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.1129.

Full text
Abstract:
The temperature and its distribution of non-isothermal deep drawing mould is one of the key technologies for magnesium alloy sheet forming process. It exerts a tremendous influence on the service life of deep drawing mould and affects magnesium alloy sheet deep drawing effect. An intelligent PID temperature controller with adaptive ability and self-organization was proposed to control the temperature of non-isothermal deep drawing mould, which included disk-shaped resistance heating coils heating die and blank holder, room temperature water cooling punch of the mould. The temperature control s
APA, Harvard, Vancouver, ISO, and other styles
28

Mehl, Patrick M. "Crystallization in glass-forming aqueous solutions during warming: umerical construction of non-isothermal DSC thermocurves during warming from isothermal data." Thermochimica Acta 223 (August 1993): 157–65. http://dx.doi.org/10.1016/0040-6031(93)80130-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Liu, Jun, Ming Jen Tan, Sylvie Castagne, and Samuel Chao Voon Lim. "EBSD Study of Microstructural Development during Superplastic-Like Forming." Materials Science Forum 735 (December 2012): 37–42. http://dx.doi.org/10.4028/www.scientific.net/msf.735.37.

Full text
Abstract:
Superplastic-like forming takes advantages of both deep drawing and bulge forming. The use of non-superplastic grade materials enables it to be more compatible with existing forming process with less material and time cost. Here, a non-isothermal heating system was adopted to selectively heat up selected localized areas to form the workpiece more efficiently. Electron backscattered diffraction (EBSD) was then used to investigate the wide range of grains in the formed samples resulting from elevated-temperature and large-strain deformation. The crystallographic textures of the material before a
APA, Harvard, Vancouver, ISO, and other styles
30

Li, Xintong, Lingyun Qian, Jingdong Sun, Nanyang Zhu, and Chaoyang Sun. "A non-sequential isothermal local-loading forming process for large-scale rib-web components." Journal of Manufacturing Processes 79 (July 2022): 666–77. http://dx.doi.org/10.1016/j.jmapro.2022.05.019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Chung, J. S., and S. M. Hwang. "Application of a genetic algorithm to process optimal design in non-isothermal metal forming." Journal of Materials Processing Technology 80-81 (August 1998): 136–43. http://dx.doi.org/10.1016/s0924-0136(98)00209-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Cetin, M. Huseyin, Abdullah Ugur, Osman Yigit, Hasan Gokkaya, and Erol Arcaklioglu. "Development of Forming Temperature Curves for Warm Deep Drawing Process Under Non-isothermal Conditions." Arabian Journal for Science and Engineering 40, no. 9 (2015): 2763–84. http://dx.doi.org/10.1007/s13369-015-1756-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Xu, Yongqian, Lihua Zhan, Minghui Huang, et al. "Deformation behavior of Al-Cu-Mg alloy during non-isothermal creep age forming process." Journal of Materials Processing Technology 255 (May 2018): 26–34. http://dx.doi.org/10.1016/j.jmatprotec.2017.12.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Gao, Haoxiang, Omer El Fakir, Liliang Wang, Denis J. Politis, and Zhiqiang Li. "Forming limit prediction for hot stamping processes featuring non-isothermal and complex loading conditions." International Journal of Mechanical Sciences 131-132 (October 2017): 792–810. http://dx.doi.org/10.1016/j.ijmecsci.2017.07.043.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Omer, Kaab, Clifford Butcher, and Michael Worswick. "Characterization of heat transfer coefficient for non-isothermal elevated temperature forming of metal alloys." International Journal of Material Forming 13, no. 2 (2019): 177–201. http://dx.doi.org/10.1007/s12289-019-01478-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Cai, A. H., W. K. An, Y. Luo, et al. "Glass forming ability, non-isothermal crystallization kinetics, and mechanical property of Zr61.5Al10.7Cu13.65Ni14.15 metallic glass." Journal of Alloys and Compounds 490, no. 1-2 (2010): 642–46. http://dx.doi.org/10.1016/j.jallcom.2009.10.125.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Liu, Xiaochuan, Xiao Yang, Yuhao Sun, Denis J. Politis, Ken-ichiro Mori, and Liliang Wang. "Characterization of Thermomechanical Boundary Conditions of a Martensitic Steel for a FAST Forming Process." Journal of Manufacturing and Materials Processing 4, no. 2 (2020): 57. http://dx.doi.org/10.3390/jmmp4020057.

Full text
Abstract:
The present work characterized and modelled the interfacial heat transfer coefficient and friction coefficient of a non-alloy martensitic steel, for a novel Fast light Alloy Stamping Technology (FAST) process. These models were validated through temperature evolution, thickness distribution and springback measurements on experimentally formed demonstrator components, which were conducted on a pilot production line and showed close agreement, with less than 10% variation from experimental results. The developed models and finite element simulations presented in this work demonstrate that non-is
APA, Harvard, Vancouver, ISO, and other styles
38

Li, Jieyang, Changhao Luo, Huanlei Zhang, Wanping Xu, and Meng Lin. "Non-Isothermal Operation of Membrane Electrode Assembly-Based CO2 Electrolyzer for Enhanced Energy Efficiency." ECS Meeting Abstracts MA2024-01, no. 35 (2024): 2000. http://dx.doi.org/10.1149/ma2024-01352000mtgabs.

Full text
Abstract:
The utilization of membrane electrode assemblies (MEA) in carbon dioxide (CO2) electrochemical conversion showcases the promising potential for stable and scalable industrial applications in fuel production, attributed to efficient gas diffusion and minimized system resistance. The electrochemical performance of MEA-based CO2 electrolyzers relies on the chemical reactivity and product selectivity optimization which is dependent on three factors: CO2 mass transport, charge transport, and ionic transport. Elevating the overall system temperature benefits the performance of the oxygen evolution r
APA, Harvard, Vancouver, ISO, and other styles
39

Hwang, Jiunn-Jer, Su-Mei Huang, Wen-Yang Lin, Hsin-Jiant Liu, Cheng-Chan Chuang, and Wen-Hui Chiu. "The Synthesis of Biodegradable Poly(L-Lactic Acid)-Polyethylene Glycols Copolymer/Montmorillonite Nanocomposites and Analysis of the Crystallization Properties." Minerals 12, no. 1 (2021): 14. http://dx.doi.org/10.3390/min12010014.

Full text
Abstract:
This study makes use of polycondensation to produce poly (L-lactic acid)-(polyethylene glycols), a biodegradable copolymer, then puts it with organically modified montmorillonite (o-MMT) going through an intercalation process to produce a series of nanocomposites of PLLA-PEG/o-MMT. The exfoliation and intercalation of the montmorillonite-layered structure could be found through X-ray diffraction and transmission electron microscopy. The lower the molecular weight of poly (ethylene glycol), the more obvious the exfoliation and dispersion. The nanocomposites were investigated under non-isotherma
APA, Harvard, Vancouver, ISO, and other styles
40

Gao, P. F., H. Yang, X. G. Fan, and S. L. Yan. "Microstructure evolution in the local loading forming of TA15 titanium alloy under non-isothermal condition." Journal of Materials Processing Technology 212, no. 11 (2012): 2520–28. http://dx.doi.org/10.1016/j.jmatprotec.2012.04.019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Byon, S. M., and S. M. Hwang. "Process optimal design in non-isothermal, steady-state metal forming by the finite element method." International Journal for Numerical Methods in Engineering 46, no. 7 (1999): 1075–100. http://dx.doi.org/10.1002/(sici)1097-0207(19991110)46:7<1075::aid-nme740>3.0.co;2-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Grankäll, Tommy, Per Hallander, and Malin Åkermo. "Vacuum-Assisted Hot-Forming Using Tailored Laminate Temperature." Applied Composite Materials 28, no. 2 (2021): 247–69. http://dx.doi.org/10.1007/s10443-020-09858-8.

Full text
Abstract:
AbstractA non-isothermal vacuum assisted hot-forming process using tailored laminate temperature is introduced. By using process simulation and manufacturing experiments, improved laminate quality is achieved compared to the standard hot-forming process. Furthermore, it is also shown that the manufacturing time in the clean room can be reduced to one tenth of the standard process time. In this study 8.4 mm thick quasi-isotropic laminates from unidirectional prepreg were laid up flat with an automatic tape laying machine and hot-formed to a U-shaped laminate. The laminates were then cured in a
APA, Harvard, Vancouver, ISO, and other styles
43

Byun, Jong Bok, Mohd Kaswandee Razali, Chang Ju Lee, Il Dong Seo, Wan Jin Chung, and Man Soo Joun. "Automatic Multi-Stage Cold Forging of an SUS304 Ball-Stud with a Hexagonal Hole at One End." Materials 13, no. 22 (2020): 5300. http://dx.doi.org/10.3390/ma13225300.

Full text
Abstract:
SUS304 stainless steel is characterized by combined tensile and compression testing, with an emphasis on flow stress at higher strain and temperature. The plastic deformation behavior of SUS304 from room temperature to 400 °C is examined and a general approach is used to express flow stress as a closed-form function of strain, strain rate, and temperature; this is optimal when the strain is high, especially during automatic multi-stage cold forging. The fitted flow stress is subjected to elastothermoviscoplastic finite element analysis (FEA) of an automatic multi-stage cold forging process for
APA, Harvard, Vancouver, ISO, and other styles
44

Liu, Hui, Su Ping Cui, Jian Feng Wang, Song Ge Yang, Xue Li Wang, and Cong Wei Liu. "Influence of Triethanolamine on Strength Development and Hydration of Cementitious Systems Blended with Titanium Slag." Materials Science Forum 898 (June 2017): 1984–89. http://dx.doi.org/10.4028/www.scientific.net/msf.898.1984.

Full text
Abstract:
This paper investigates the influence of triethanolamine (TEA) on strength development and hydration of cement pastes and mortars incorporated with titanium slag (50% by mass of the total cementitious materials). The techniques including isothermal calorimetry, non-evaporative water content, and mercury intrusion porosimetry (MIP) were employed to characterize the hydration process at varied ages. The results show that: 1) 0.01%~0.10% addition of TEA has a positive effect on the strength development of blended cement mortars with titanium slag indicated by improved compressive strength and ten
APA, Harvard, Vancouver, ISO, and other styles
45

Wu, Jili, Ye Pan, Jindu Huang, and Jinhong Pi. "Non-isothermal crystallization kinetics and glass-forming ability of Cu–Zr–Ti–In bulk metallic glasses." Thermochimica Acta 552 (January 2013): 15–22. http://dx.doi.org/10.1016/j.tca.2012.11.012.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Schell, Lukas, and Peter Groche. "Challenges in Tribometry for Warm and Hot Sheet Metal Forming of High Strength Aluminum with Tool Lubrication." Defect and Diffusion Forum 414 (February 24, 2022): 95–102. http://dx.doi.org/10.4028/p-lq0q96.

Full text
Abstract:
For conventional sheet metal forming at room temperature, numerous tribometers were developed in the 20th century. At the present state of the art, unsolved issues for tribometry remain for temperature-supported forming processes of high strength aluminum (e.g. EN AW-7075), in which the sheet is heated to temperatures between 200 and 480 °C. The tribological design of these processes remains a major challenge, which needs to be addressed by investigations with adapted tribometers. In this study, a recently adapted strip drawing test for aluminum warm and hot forming is presented – including a
APA, Harvard, Vancouver, ISO, and other styles
47

Zhang, Yuchi, Run Fang, Hanyu Xue, Yuansong Ye, Li Chen, and Jianrong Xia. "Performance Enhancement of Polyurethane Acrylate Resin by Urushiol: Rheological and Kinetic Studies." Polymers 16, no. 19 (2024): 2716. http://dx.doi.org/10.3390/polym16192716.

Full text
Abstract:
A natural extract, i.e., urushiol, was employed to effectively cross-link and modify commercial wet-cured polyurethane acrylic resin. Comprehensive characterization of the paint film was performed using techniques such as FTIR, SEM, and TGA. The results indicated that the incorporation of urushiol significantly increased the cross-linking density of the resin, which in turn enhanced the film-forming properties, mechanical strength, and thermal stability of the paint film. Additionally, the study discovered that under isothermal conditions, the dynamic moduli (G′ and G″) of the paint film are r
APA, Harvard, Vancouver, ISO, and other styles
48

Pasynkov, Andrey A., Sergey N. Larin, and Lydmila P. Semenova. "Processes of isothermal formation of hollow t-shaped tubes made of high-strength alloys." MATEC Web of Conferences 329 (2020): 02003. http://dx.doi.org/10.1051/matecconf/202032902003.

Full text
Abstract:
Slow hot deformation makes it possible to achieve a significant growth of deformation without the destruction of the material and avoiding a significant decrease in pressure when forming difficult-to-deform non-ferrous alloys. This is especially important when it is necessary to obtain products that operate in severe conditions, for example, in propulsion systems. The article discusses the manufacture of hollow T-shaped connectors by means of forming, namely, by means of extrusion in orthogonal planes and piercing. It was assumed that these operations took place under isothermal conditions. Ex
APA, Harvard, Vancouver, ISO, and other styles
49

Osiadacz, Andrzej. "Assessing Hydrate Formation in Natural Gas Pipelines Under Transient Operation / Ocena zjawiska tworzenia się hydratów w warunkach nieustalonego przepływu gazu w gazociągach." Archives of Mining Sciences 58, no. 1 (2013): 131–44. http://dx.doi.org/10.2478/amsc-2013-0009.

Full text
Abstract:
This work presents a transient, non-isothermal compressible gas flow model that is combined with a hydrate phase equilibrium model. It enables, to determine whether hydrates could form under existing operating conditions in natural gas pipelines. In particular, to determine the time and location at which the natural gas enters the hydrate formation region. The gas flow is described by a set of partial differential equations resulting from the conservation of mass, momentum, and energy. Real gas effects are determined by the predictive Soave-Redlich-Kwong group contribution method. By means of
APA, Harvard, Vancouver, ISO, and other styles
50

Liu, Xiaochuan, Shaomeng Jin, Ming Ming, et al. "A high throughput in-situ measurement of heat transfer in successive non-isothermal forming of sheet alloys." Journal of Manufacturing Processes 129 (November 2024): 77–91. http://dx.doi.org/10.1016/j.jmapro.2024.08.048.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography