Academic literature on the topic 'Remelting process'

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Journal articles on the topic "Remelting process"

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Mróz, M., W. Orłowicz, and M. Tupaj. "Geometry of Remeltings and Efficiency of the Surface Remelting Process Applied to Cobalt Alloy Castings." Archives of Foundry Engineering 13, no. 2 (2013): 95–98. http://dx.doi.org/10.2478/afe-2013-0044.

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Abstract The paper summarises results of measurements of remelting area geometry, thermal efficiency and melting efficiency characterising the surface remelting process applied to castings of MAR-M-509 cobalt alloy. The remelting process was carried out with the use of GTAW (Gas Tungsten Arc Welding) method in protective atmosphere of helium, at the electric current intensity in the range from 100 A to 300 A, and the electric arc scanning velocity vs in the range from 200 mm/min to 800 mm/min. The effect of current intensity and electric arc scanning velocity on geometrical parameters of remel
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Trytek, Andrzej Stanisław, Mirosław Tupaj, Ján Majerník, Štefan Gašpár, Wiktoria Zbyrad-Kołodziej, and Karol Łysiak. "Surface Remelting of Mold Inserts Made of NC11 Steel." Journal of Casting & Materials Engineering 4, no. 1 (2020): 9–15. http://dx.doi.org/10.7494/jcme.2020.4.1.9.

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In the study presented in this paper, the effect of a concentrated heat stream on geometry, microstructure, and hardness of superficial remeltings on NC11 steel is examined. The material is used for disposable mold inserts exposed to intensive abrasive wear in the course of the press-molding of hard aggregate stampings for refractory bricks. As a result of local remelting, the hardness of the steel surface increased and its microstructure was altered. Macro- and microstructure of the remelted areas was examined with the use of optical microscopy and measurements of remelting area geometry were
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Arh, Boštjan, Bojan Podgornik, and Jaka Burja. "Electroslag remelting: A process overview." Materiali in tehnologije 50, no. 6 (2016): 971–79. http://dx.doi.org/10.17222/mit.2016.108.

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Šturm, Roman, and Janez Grum. "Influence of Laser Remelting Process on Strain and Residual Stresses in Nodular Iron." Materials Science Forum 681 (March 2011): 188–93. http://dx.doi.org/10.4028/www.scientific.net/msf.681.188.

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The present paper deals with residual stress and strain changes in thin flat specimens of nodular cast iron during laser remelting process. In laser remelting process of a workpiece we have used several laser beam passages across the workpiece surface. The state of internal stress in the workpiece changes because of different ways of guiding the laser beam across the workpiece surface, and consequently strain of the workpiece may occur. In the process of gradual remelting of the specimen surface, i.e. during its heating and cooling, volume changes in the specimen surface layer occur due to the
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Ding, Wan Wu, Jiang Tao Zhu, Wen Jun Zhao, and Tian Dong Xia. "Microstructure Evolution of Al-Ti-C Alloy Wires during Remelting Process." Advanced Materials Research 652-654 (January 2013): 1119–23. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1119.

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The regular pattern of evolution of TiC and TiAl3 during the remelting process of Al-Ti-C alloy wires was analyzed and the impact mechanism was discussed. The results show that: when the temperature of the remelting mass is at 730°C, with the increase of the heat preservation time of remelting, the degree of agglomeration of the original dispersed TiC will increase, and they are pushed toward crystal boundaries by α-Al during the solidification process, while TiAl3 will dissolve, aggregate, and grow. When the remelting temperature is at 1000°C, as the heat preservation time increases, not only
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Guo, Hua Feng, Tao Sun, Zhi Li, and Ju Li Li. "Influence of Process Parameters on Temperature Field in Laser Remelting Coating Prepared by Plasma Spraying on Titanium Alloy Surface." Applied Mechanics and Materials 197 (September 2012): 802–7. http://dx.doi.org/10.4028/www.scientific.net/amm.197.802.

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In order to research the effect of process parameters on temperature field evolution in laser remelting coating prepared by plasma spraying on titanium alloy surface,the finite element model of laser multi-tracks remelting temperature field was established based on ANSYS, and remelting temperature field was analyzed. The analysis results show that: under certain scanning velocity and laser spot diameter, too small laser power can't achieve metallurgical combination between coating and substrate; the effect on temperature field of scanning velocity was smaller than laser power; the influence on
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Yi, Rong Xi, Xiao Qiu Zheng, Shi Kun Xie, and Xiu Yan Guo. "Study on the Remelting Process of Rare Earth Al-4.5Cu." Applied Mechanics and Materials 66-68 (July 2011): 1854–57. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.1854.

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The influences of heating temperature and holding time on the microstructures were investigated during the semi-solid remelting process of rare earth Al-4.5Cu alloy. The evolution mechanism of crystal organization was discussed. Experiments show that the heating temperature and holding time are very important to the grain size and uniformity. It is the most suitable parameters, as heating temperature is 630°C and holding time is 20 minutes, to remelting process. During the remelting process, grain mergering and Ostwald growing up is the main mechanism of change on microstructures.
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Zhu, Jun Feng, Wei Feng Xiao, Gang Liu, and Shu Lin Wang. "The Property Comparison of Coating Prepared by Oxygen-Acetylene Spray Welding Technology and High-Frequency Induction Remelting Technology." Advanced Materials Research 652-654 (January 2013): 1805–9. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1805.

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Ni60A coating is obtained by oxygen-acetylene spray welding and high-frequency induction remelting process. Coating Surface, interface between matrix and coating, microhardness and wear resistance are investigated. The results show that both of the processes can achieve coating metallurgically bonded to matrix. But microhardness and wear resistance of Ni60A coating obtained by high-frequency induction remelting process are superior to those of Ni60A coating obtained by oxygen-acetylene spray welding process. At the same time, coating surface by high-frequency induction remelting process is of
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Xu, Lianyong, Yaqing Zhang, Lei Zhao, Wenjing Ren, and Yongdian Han. "Performance Improvement for the CuCrZr Alloy Produced by Laser Powder Bed Fusion Using the Remelting Process." Materials 17, no. 3 (2024): 624. http://dx.doi.org/10.3390/ma17030624.

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Owing to the high optical reflectivity of copper powder, the high-performance fabrication of copper alloys in the laser additive manufacturing (AM) field is problematic. To tackle this issue, this study employs the remelting process during laser powder bed fusion AM to fabricate defect-free and high-performance CuCrZr alloy. Compared to the non-remelting process, the remelting process yields finer grains, smaller precipitates, denser dislocations, and smaller dislocation cells. It realizes not only the dense molding of high laser reflectivity powders but also excellent mechanical properties an
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Soffel, Fabian, Yunong Lin, Dominik Keller, Sergei Egorov, and Konrad Wegener. "Laser Remelting Process Simulation and Optimization for Additive Manufacturing of Nickel-Based Super Alloys." Materials 15, no. 1 (2021): 177. http://dx.doi.org/10.3390/ma15010177.

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Nickel-based super alloys are popular for applications in the energy and aerospace industries due to their excellent corrosion and high-temperature resistance. Direct metal deposition (DMD) of nickel alloys has reached technology readiness for several applications, especially for the repair of turbomachinery components. However, issues related to part quality and defect formation during the DMD process still persist. Laser remelting can effectively prevent and repair defects during metal additive manufacturing (AM); however, very few studies have focused on numerical modeling and experimental
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Dissertations / Theses on the topic "Remelting process"

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Hernández-Morales, José Bernardo. "Electromagnetic stirring with alternating current during electroslag remelting." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28385.

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The electroslag remelting process combines both a chemical refining ability and a better control on solidification which produces materials of more uniform properties. In spite of the advantages of this process, segregation-prone alloys are still difficult to produce via ESR, particularly when large ingot diameters are involved. In this context the study of externally applied electromagnetic fields is of great interest. An AC operated stirring device was designed and laboratory-scale experiments were conducted. The solidification structures resulting from the stirring as well as the mixing co
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Wani, Nitin Yashwant. "Simulation of thermal stresses in vacuum arc remelting process." Ohio : Ohio University, 1995. http://www.ohiolink.edu/etd/view.cgi?ohiou1178820121.

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Polton, Richard. "Numerical grid generation and its application in the solution of a model of the Vacuum-Arc Remelting (VAR) process." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323918.

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MUCSI, CRISTIANO S. "Estudo sobre o processo V.A.R. (Vacuum Arc Remelting) escala de laboratorio." reponame:Repositório Institucional do IPEN, 1996. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10472.

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Made available in DSpace on 2014-10-09T12:40:50Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:54Z (GMT). No. of bitstreams: 1 02949.pdf: 9168361 bytes, checksum: 474a2e1dcf103e26b6863b7d40ff33a1 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Décultot, Léa. "Étude et modélisation du procédé de refusion par plasma d’arc en creuset froid (PAMCHR) d’alliages de titane pour des applications aéronautiques." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0031.

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Le procédé Plasma Arc Melting Cold Hearth Refining (PAMCHR) permet de recycler des chutes de titane afin d’élaborer des alliages de titane de qualité aéronautique. Les travaux de thèse présentés dans ce manuscrit se concentrent sur l’étape d’affinage du procédé. Elle correspond, après fusion de la matière et avant coulée en lingotière, au transport du métal liquide dans un creuset à fond plat en cuivre refroidi à l’eau. L’apport de chaleur du procédé se fait par des torches à plasma, dans un environnement de gaz inerte. Une modélisation tridimensionnelle de l’écoulement thermo-hydrodynamique d
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Souza, Edvaldo Roberto de. "Caracterizações microestruturais e avaliações das propriedades mecânicas das juntas em aço inoxidável AISI 301 L soldadas por MIG e submetidas ao reparo pelo processo TIG." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-22082016-143920/.

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A soldagem tem grande importância no setor metroferroviário, pois é empregada na fabricação de componentes estruturais e no acabamento de vagões de passageiros, que em sua maior parte são de aço inoxidável. As juntas soldadas podem apresentar descontinuidades que são interrupções que afetam as propriedades mecânicas e metalúrgicas da junta soldada. A presença destas descontinuidades, dependendo do seu tamanho, natureza ou efeito combinado, pode ocasionar a reprovação da junta soldada, quer pela redução de propriedades mecânicas ou pela não aceitação, segundo critérios estabelecidos em normas.
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Hroš, Michal. "Optimalizace podmínek dvojitého přetavení elektronovým paprskem v procesu přípravy TBC povlaků." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400832.

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Thermal barrier coatings (TBCs) are commonly used for thermal protection of components in modern gas turbine application and typically consisting of ceramic top coat and CoNiCrAlY bond coat (BC), both thermally sprayed. Nanostructured CoNiCrAlY bond coatings were deposited onto Ni-based alloy (Inconel 718) by both HVOF and CGDS spraying techniques. Subsequently the deposits were remelted by electron beam up to depth of about 100 m which resulted in removal of defects on the substrate to the bond coat interface. The primary objective of this thesis was to investigation of the influence of param
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Ahn, Seokyoung Beaman Joseph J. "Modeling, estimation, and control of electroslag remelting process." 2005. http://repositories.lib.utexas.edu/bitstream/handle/2152/1494/ahns17441.pdf.

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Ahn, Seokyoung. "Modeling, estimation, and control of electroslag remelting process." Thesis, 2005. http://hdl.handle.net/2152/1494.

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XIE, JUN-JIE, and 謝俊傑. "Study on die- casting die service life improvement by laser-remelting process." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2bpccz.

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碩士<br>國立中央大學<br>機械工程學系在職專班<br>107<br>High pressure die-casting is one of the most widely used and important manufacturing method in modern industry, but the working environment is often dangerous, hard and dirty due to its high temperature and high noise. This is the reason why fewer people are willing to devote themselves to the job, and furthermore, most of researches about high pressure die-casting is academic study. One of the most important problem in the die-casting process is die service life improvement, and the problem affects not only capacity of production but also quality. In this
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Books on the topic "Remelting process"

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Engh, Thorvald Abel, Geoffrey K. Sigworth, and Anne Kvithyld. Principles of Metal Refining and Recycling. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198811923.001.0001.

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Covers the field of recycling and refining of metals. An important point the book stresses is that the principles are the same in the treatment of various different metals. The book answerd why it is important to have a clean and properly alloyed metal from recycling and refined metal? The text covers basic thermodynamics, physical and transport properties, mixing, mass transfer and numerical models. Further it identifies problems and described methods for removal of dissolved impurity elements, particles and inclusions, also during solidification. And lastly applications remelting and additio
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Book chapters on the topic "Remelting process"

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Li, Jing, and Chengbin Shi. "Carbides Control in Electroslag Remelting Process." In Carbide in Special Steel. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1456-9_2.

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Kharicha, A., A. Ludwig, and M. Wu. "3D Simulation of the Melting during an Electro-Slag Remelting Process." In EPD Congress 2011. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118495285.ch84.

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Wang, Qiang, Zhu He, and Baokuan Li. "Modeling of Magnetohydrodynamic, Thermal and Solidified Behavior in Electroslag Remelting Process." In EPD Congress 2014. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118889664.ch49.

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Zhuo, Y., X. F. Yin, and D. M. Yang. "The Damage of the SiC/Al Preform Wire During Remelting Process." In Controlled Interphases in Composite Materials. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-7816-7_27.

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Pericleous, Koulis, Georgi Djambazov, Mark Ward, Lang Yuan, and Peter D. Lee. "A Multi-Scale 3D Model of the Vacuum Arc Remelting Process." In Supplemental Proceedings. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118357002.ch38.

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Birol, Burak, and Muhlis Nezihi Saridede. "Recycling of High Quality Steel Scraps Directly in Electroslag Remelting Process (ESR)." In EPD Congress 2011. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118495285.ch106.

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Kharicha, A., M. Wu, and A. Ludwig. "Variation of the Resistance during the Electrode Movement in the Electroslag Remelting Process." In Proceedings of the 2013 International Symposium on Liquid Metal Processing and Casting. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118830857.ch22.

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Kharicha, A., M. Wu, and A. Ludwig. "Variation of the Resistance During the Electrode Movement in the Electroslag Remelting Process." In Proceedings of the 2013 International Symposium on Liquid Metal Processing & Casting. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48102-9_22.

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Zang, Ximin, Zhouhua Jiang, Hua Song, et al. "A Study of Slag and Steel Leakage Influence Factors during Electroslag Remelting Withdrawing Process." In Proceedings of the 2013 International Symposium on Liquid Metal Processing and Casting. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118830857.ch17.

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Patel, Ashish, David W. Tripp, and Daniel Fiore. "Application of a Model for Simulating the Vacuum Arc Remelting Process in Titanium Alloys." In Proceedings of the 2013 International Symposium on Liquid Metal Processing and Casting. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118830857.ch35.

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Conference papers on the topic "Remelting process"

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Meyer, Patrick, Evgueni Bordatchev, and O. Remus Tutunea-Fatan. "Preliminary Development of Thermographic Monitoring of the Laser Remelting Process." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.am1c.3.

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Masamura, Katsumi, Yuko Takeuchi, Katsuomi Tamaki, Tsuguo Miyagawa, and Arata Nakamura. "Corrosion Resistance of Newly Developed inside Coated Materials in Sour Environments." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94084.

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Abstract A research program was conducted by a joint research group. New coating technologies were applied to oil country tubular goods to improve their corrosion resistance. Six types of coating facilities for 0.5 m long pipes were constructed as candidate process. Chemical vapor deposition (CVD), physical vapor deposition (PVD), plasma transferred arc hard facing (PTH), polymer coating, low pressure plasma spraying (LPPS) and laser remelting of LPPS were selected. By CVD and PVD process, TiN was mainly coated. High Ni alloy was coated by LPPS and PTH process. Tetrafluoroethylene - perfluoroa
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Shen, Hongwei, Weili Wang, Zhizheng Wang, Lihong Zhang, Xishan Xie, and Shuhong Fu. "The Application of Ni-Base Alloy Nimonic 80A for Buckets of USC Steam Turbine in China." In AM-EPRI 2007, edited by R. Viswanathan, D. Gandy, and K. Coleman. ASM International, 2007. https://doi.org/10.31399/asm.cp.am-epri-2007p0402.

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Abstract Nimonic 80A, a Ni-base superalloy mainly strengthened by Al and Ti to form γ'-Ni3 (Al, Ti) precipitation in Ni-Cr solid solution strengthened austenite matrix, has been used in different industries for more than half century (especially for aero-engine application). In consideration of high strengths and corrosion resistance both Shanghai Turbine Company (STC) has adopted Nimonic 80A as bucket material for ultra-super-critical (USC) turbines with the steam parameters of 600°C, 25MPa. First series of two 1000MW USC steam turbines made by Shanghai Turbine Co. were already put in service
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Derouet, H., L. Sabatier, F. Coste, and R. Fabbro. "Process control applied to laser surface remelting." In ICALEO® ‘97: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1997. http://dx.doi.org/10.2351/1.5059666.

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Fu, Yunchang, Dongxiong Ling, Bruno Martin, and Junchang Li. "Finite-element modeling of laser remelting process." In Photonics Asia 2002, edited by ShuShen Deng, Tatsuo Okada, Klaus Behler, and XingZong Wang. SPIE, 2002. http://dx.doi.org/10.1117/12.482911.

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Stovpchenko, G., L. Medovar, L. Lisova, D. Stepanenko, and D. Togobitskaya. "Prognostic models for electroslag remelting process and slag engineering." In 12th International Conference of Molten Slags, Fluxes and Salts (MOLTEN 2024) Proceedings. Australasian Institute of Mining and Metallurgy (AusIMM), 2024. http://dx.doi.org/10.62053/tbyl4271.

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Classical electroslag remelting of consumable electrodes is a drop-by-drop melt feeding through a slag layer into a renewing molten metal bath, slowly solidifying into a homogeneous, dense, defect-free ingot in a copper water-cooled mould. The new look at the additive nature of the electroslag remelting (ESR) process in a protective atmosphere allowed us to formulate the principles of a comprehensive thermodynamic-based model that can predict dynamic changes in slag and metal composition at certain ingot remelting. The model considers drastically different slag-to-metal mass ratios at the begi
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Song, Jin-chun, Li-li Zhao, and Hong-yi Liu. "State Estimate Based on Nonlinear Filter of ElectroSlag Remelting Process." In 2008 Pacific-Asia Workshop on Computational Intelligence and Industrial Application (PACIIA). IEEE, 2008. http://dx.doi.org/10.1109/paciia.2008.12.

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Zhao, Yanzhe, Jie Sun, Kai Guo, and Jianfeng Li. "Investigation on the effect of laser remelting for laser cladding nickel based alloy." In ICALEO 2018: 37th International Congress on Applications of Lasers & Electro-Optics. Laser Institute of AmericaLIA, 2018. https://doi.org/10.2351/7.0004041.

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Laser cladding is a recently developed additive manufacturing technique which is widely used in remanufacturing and sustainable manufacturing fields. However, the surface roughness of laser cladding layer often fails to meet the tribological functions and assembly requirements. In order to improve the surface finish quality of laser cladding, various techniques such as manual polishing, grinding, abrasive blasting and chemical polishing were adopted. However, these methods have certain disadvantages, such as secondary positioning and polluting the environment. Laser remelting is an eco-friendl
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Ahn, Seokyoung, Joseph J. Beaman, Rodney L. Williamson, and David K. Melgaard. "Model-Based Control of Electroslag Remelting Process Using Unscented Kalman Filter." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2148.

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Electroslag Remelting (ESR) is used widely throughout the specialty metals industry. The process generally consists of a regularly shaped electrode that is immersed a small amount in liquid slag at a temperature higher than the melting temperature of the electrode. Melting droplets from the electrode fall through the lower density slag into a liquid pool constrained by a crucible and solidify into an ingot. High quality ingots require that electrode melt rate and immersion depth be controlled. This can be difficult when process conditions are such that the temperature distribution in the elect
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Song, Jin-chun, Li-li Zhao, and Hong-yi Liu. "Optimizing cooperative control based on genetic algorithm for electroSlag remelting process." In 2008 IEEE Conference on Cybernetics and Intelligent Systems. IEEE, 2008. http://dx.doi.org/10.1109/iccis.2008.4670764.

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