Relevant bibliographies by topics / ElectroSlag Remelting (ESR)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'ElectroSlag Remelting (ESR)'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 June 2024

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'ElectroSlag Remelting (ESR).'

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.

Journal articles on the topic "ElectroSlag Remelting (ESR)"

1

Tong, Wenjie, Wanming Li, Ximin Zang, Huabing Li, Zhouhua Jiang, and Dejun Li. "A Comprehensive Mathematical Model of Electroslag Remelting with Two Series-Connected Electrodes Based on Sequential Coupling Simulation Method." Metals 10, no. 5 (May 19, 2020): 658. http://dx.doi.org/10.3390/met10050658.

Full text
Abstract:
A comprehensive mathematical model of electroslag remelting with two series-connected electrodes (TSCE-ESR) was constructed based on sequential coupling method. The influence of droplet effect on electroslag remelting process (ESR) was considered in this model. Compared with one-electrode electroslag remelting (OE-ESR), the multi-physics field, droplet formation and dripping behavior, and molten metal pool structure of TSCE-ESR process were studied. The results show that during the process of TSCE-ESR, the proximity effect of the electrodes suppresses the skin effect, and Joule heat is concentrated in the area between the two electrodes of slag pool, making the temperature distribution of the slag pool more uniform. The heat used to melt the electrode in the process of TSCE-ESR accounts for about 34% of the total Joule heat, which is lower than the OE-ESR (17%). Therefore, it makes a higher melting rate and a smaller droplet size in the process of TSCE-ESR. Compared with OE-ESR, TSCE-ESR process can realize the unification of higher melting rate and shallow flat molten metal pool. Compared with the results without droplet effect, it is found that in the simulation results with droplet effect, the depth and the cylindrical section of molten metal pool increased, and the width of the mushy zone is significantly reduced, which is more consistent with the actual electroslag remelting process.
APA, Harvard, Vancouver, ISO, and other styles
2

Chumanov, I. V., A. N. Anikeev, and D. V. Sergeev. "Studying Influence of Rotation an Electrode on the Number Nonmetallic Inclusions in Received Eletroslag Metal." Materials Science Forum 934 (October 2018): 154–58. http://dx.doi.org/10.4028/www.scientific.net/msf.934.154.

Full text
Abstract:
Quality improvement metal, in particular decrease content nonmetallic inclusions, is very important tasks as mechanical, thermal and anticorrosive characteristics metal depend on it. Electroslag remelting well influences quality on metal: content harmful impurity decreases, metal density increases, nonmetallic inclusions are removed. A method quality improvement metal by means of removal of nonmetallic inclusions at classical electroslag remelting and remelting with rotation electrode it is offered in this article. Also metallographic surveys experimental materials received are given in article which showed that ESR with rotation electrode deletes nonmetallic inclusions for 55-56 % more effectively, than classical remelting.
APA, Harvard, Vancouver, ISO, and other styles
3

Jiang, Zhou Hua, Jia Yu, Fu Bin Liu, Xu Chen, and Xin Geng. "Application of Mathematical Models for Different Electroslag Remelting Processes." High Temperature Materials and Processes 36, no. 4 (April 1, 2017): 411–26. http://dx.doi.org/10.1515/htmp-2016-0146.

Full text
Abstract:
AbstractThe electroslag remelting (ESR) process has been effectively applied to produce high grade special steels and super alloys based on the controllable solidification and chemical refining process. Due to the difficulties of precise measurements in a high temperature environment and the excessive expenses, mathematical models have been more and more attractive in terms of investigating the transport phenomena in ESR process. In this paper, the numerical models for different ESR processes made by our lab in last decade have been introduced. The first topic deals with traditional ESR process predicting the relationship between operating parameters and metallurgical parameters of interest. The second topic is concerning the new ESR technology process including ESR with current-conductive mould (CCM), ESR hollow ingot technology, electroslag casting with liquid metal(ESC LM), and so on. Finally, the numerical simulation of solidification microstructure with multi-scale model is presented, which reveals the formation mechanism of microstructure.
APA, Harvard, Vancouver, ISO, and other styles
4

Shi, Chengbin. "Deoxidation of Electroslag Remelting (ESR) – A Review." ISIJ International 60, no. 6 (June 15, 2020): 1083–96. http://dx.doi.org/10.2355/isijinternational.isijint-2019-661.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

K.M Kelkar, J. Mok, S. V. Patankar, and A. Mitchell. "Computational modeling of electroslag remelting processes." Journal de Physique IV 120 (December 2004): 421–28. http://dx.doi.org/10.1051/jp4:2004120048.

Full text
Abstract:
Alloys used for the production of rotating components in aeroengines and land-based turbines are subject to stringent requirements to ensure absence of melt-related defects such as inclusions and segregation. Accordingly, the production of the superalloys alloys used in these applications involves multiple remelting stages, each of which plays a distinct role in ensuring that the final ingot is defect-free. Because of the complexity of these processes, high-temperature environments, and high initial and operating costs, trial-and-error based approaches for process design are inadequate. Computational modeling provides fundamental understanding of the physical phenomena and quantitative information about the effects of process parameters. Therefore, such models are very useful for design of new processes and optimization of existing processes. The paper describes a generalized framework for the modeling of the Electro-Slag Remelting (ESR) process. The model accounts for electromagnetic, fluid flow and heat transfer phenomena in a coupled manner for axisymmetric, steady-state conditions. A control-volume based computational method is used for the solution of the governing equations. The model incorporates a number of physically motivated computational features for efficient and accurate analysis of the transport processes. These include use of the effective viscosity approach for handling the liquid, mushy, and solid regions, implicit treatment of the interaction at the slag-metal interface, and contact heat transfer at the ingot-mold interface. Further, the computational method has been enhanced to address the AC electromagnetics in the ESR process. Thus, the model is able to predict the Joule heating within the slag, the distribution of the Lorentz force, the pool shape, and the motion in the slag and metal pools that arises due to buoyancy and Lorentz forces. The model is being validated using available experimental measurements for pool shape in full- scale ESR furnaces. Results of the model predictions for the flow, temperature, and electromagnetic fields are presented along with a comparison of the predicted and measured pool shapes.
APA, Harvard, Vancouver, ISO, and other styles
6

Shi, Zhiyue, Wenquan Cao, Chengjia Shang, and Xiaodan Zhang. "Effect of inclusion type on the rotating bending fatigue properties of a high carbon chromium bearing steel." IOP Conference Series: Materials Science and Engineering 1249, no. 1 (July 1, 2022): 012032. http://dx.doi.org/10.1088/1757-899x/1249/1/012032.

Full text
Abstract:
Abstract The use of the double vacuum melting route (conventional second refining + vacuum arc refining, CSR+VAR) and the electroslag remelting route (vacuum induction melting + electroslag remelting, VIM+ESR)) has been investigated for the SAE52100 (100Cr6) bearing steel. The tensile properties, impact toughness, hardness and RCF life of the CSR+VAR steel and the steel prepared using the VIM+ESR route are similar. The number and size of TiN inclusions in the VIM+ESR steel are higher and larger than those in the CSR+VAR steel, providing an explanation for the observation of better fatigue properties for the CSR+VAR steel. Two major types of inclusions, magnesium aluminates/Al2O3-CaO-CaS and TiN, are located in different areas in a map of stress intensity factor versus rotatory bending fatigue cycles (NRBF ). The negative impact of TiN inclusions on fatigue properties are greater than those of magnesium aluminates/Al2O3-CaO-CaS inclusions.
APA, Harvard, Vancouver, ISO, and other styles
7

Jiang, Zhou Hua, and Xin Geng. "Research on the Surface Quality of ESR Large Slab Ingots." Advanced Materials Research 146-147 (October 2010): 670–73. http://dx.doi.org/10.4028/www.scientific.net/amr.146-147.670.

Full text
Abstract:
A special bifilar 40t electroslag remelting(ESR) furnace for slab products has been fabricated to produce heavy plates for special application. The ESR slabs with the maximum thickness of the world in size of 980 mm thickness, 2000 mm wideness and 2800 mm length have been produced successfully. However, the ingots surface quality is a serious problemn in ESR process for large slab ingots, for ingot and mold with a relatively mobile, larger ingot contraction and thicker slag skin. Using CaF2-CaO-Al2O3-SiO2-MgO slag, suited remelting rate, lower filling ration, smooth movement of mold and adjusting taper of the mold and are necessary for improving surface quality of the ESR large slab ingots.
APA, Harvard, Vancouver, ISO, and other styles
8

Stovpchenko, G. P., A. V. Sybir, G. O. Polishko, L. B. Medovar, and Ya V. Gusiev. "Mass Transfer in Electroslag Processes with Consumable Electrode and Liquid Metal." Uspehi Fiziki Metallov 21, no. 4 (December 2020): 481–98. http://dx.doi.org/10.15407/ufm.21.04.481.

Full text
Abstract:
Experimental and numerical comparisons of mass transfer processes during the electroslag remelting with consumable electrode (ESR) and electroslag refining with liquid metal (ESR LM) showed their identical refining capacity, despite the smaller both the slag–metal contact surface (twice) and metal overheat (by 70–95 K) in the latter case. As revealed, due to effect of metal movement inside the liquid metal drop, it moves in liquid slag faster than a solid particle of the same diameter. Under comparable conditions, it is experimentally confirmed that desulphurization at the ESR takes place mainly on the contact surface between the slag and metal baths, but not in the liquid metal film at the tip of a consumable electrode.
APA, Harvard, Vancouver, ISO, and other styles
9

Qi, Yongfeng, Jing Li, Chengbin Shi, Hao Wang, and Dingli Zheng. "Precipitation and growth of MnS inclusion in an austenitic hot-work die steel during ESR solidification process." Metallurgical Research & Technology 116, no. 3 (2019): 322. http://dx.doi.org/10.1051/metal/2018114.

Full text
Abstract:
This study follows a previous presentation of metallurgical results and operating parameters about the comparison between conventional ESR and continuous unidirectional solidification of electroslag remelting (ESR-CDS) and more precisely the effect of cooling rate on the precipitation and growth of inclusions in an austenitic hot-work die steel [Y.F. Qi, J. Li, C.B. Shi, R.M. Geng, J. Zhang, Effect of directional solidification in electroslag remelting on the microstructure and cleanliness of an austenitic hot-work die steel, ISIJ Int. 58, 1275–1284 (2018)]. A thermodynamic study, a classical solidification model and a growth model for MnS inclusions were used orderly to interpret the metallurgical results. Optical microscopy (OM) and scanning electron microscopy (SEM) were used to characterize microstructure and inclusions (i.e. number, size, morphology and distribution) in the as-cast ingots. The results showed that the as-cast microstructure was refined and the dendritic arm spacings were reduced through ESR-CDS process. The characteristics of inclusions showed that the number density and the size of inclusions in ingot were much more reduced through ESR-CDS process in comparison with ESR process. The starting time for the precipitation of MnS inclusion is retarded, which is due to the segregation of elements Mn and S lowered by higher cooling rate in ESR-CDS in comparison with that in ESR. The starting time for the precipitation of MnS inclusion in ESR was fs = 0.92, while that in ESR-CDS was fs = 0.95.
APA, Harvard, Vancouver, ISO, and other styles
10

Wang, Chang Zhou, and Jin Chun Song. "Electrode Feeding Speed Control and Experiment Research of ESR Furnace Based on S Style Control Curve." Advanced Materials Research 619 (December 2012): 480–84. http://dx.doi.org/10.4028/www.scientific.net/amr.619.480.

Full text
Abstract:
The electrode feeding mechanism and the feeding speed control system of the electroslag remelting furnace are studied. The electrode feeding mechanism is designed based on the electro-hydraulic proportional control technique, and the mechanism’s three-dimensional model is established. The electrode feeding mechanism’s electro-hydraulic proportional control system is simulated. The basic feeding speed model and the error-correction feeding speed model are established; and the S style speed control curve of the electrode feeding system is designed. Experiments were carried out; the system control curves and the experimental production dissection results were obtained. It was found that, the electrode feeding system and the feeding speed control system studied in this paper met the craft procedure and technique requirements of large electroslag remelting furnace, and the method’s validity was verified.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "ElectroSlag Remelting (ESR)"

1

Weber, Valentine. "Simulation numérique du procédé de refusion sous laitier électroconducteur." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL010N/document.

Full text
Abstract:
Le procédé de refusion sous laitier électroconducteur (Electro Slag Remelting ou ESR) est aujourd’hui largement utilisé pour la production d’alliages métalliques à haute valeur ajoutée, comme les aciers spéciaux ou les superalliages base nickel. La modélisation mathématique et la simulation numérique du procédé ESR présentent un grand intérêt puisque les études expérimentales sur installations industrielles sont coûteuses et souvent difficiles à mettre en oeuvre. Ainsi, afin d’améliorer la compréhension et la maîtrise de la conduite d’une refusion, un modèle prédictif a été développé dans le cadre de cette étude. Il décrit les transferts couplés de chaleur et de quantité de mouvement lors de la croissance et de la solidification d’un lingot, en géométrie axisymétrique. La résolution des équations est basée sur une approche de type volumes finis. Le modèle tient compte de l’effet Joule dans le laitier résistif, des forces électromagnétiques et de la turbulence éventuelle de l’écoulement des phases liquides. La zone pâteuse est traitée comme un milieu poreux. Le modèle permet notamment de prédire la formation de la peau de laitier solide qui entoure le laitier et le lingot. Par ailleurs, il offre l’avantage de simuler le comportement du lingot et du laitier après la coupure finale du courant.Le développement s’est accompagné d’une importante étape de validation. Quatre refusions à l’échelle industrielle ont ainsi été réalisées à l’aciérie des Ancizes (Aubert&Duval). Les observations expérimentales ont ensuite été confrontées aux résultats du calcul. La comparaison a montré que le modèle peut être utilisé afin de prédire le comportement du procédé, à condition d’accorder une attention particulière à l’estimation des propriétés thermophysiques du métal, et surtout du laitier. Enfin, afin d’illustrer l’utilisation du modèle comme support à la compréhension du procédé, nous avons étudié l’influence de la variation de paramètres opératoires tels que la profondeur d’immersion de l’électrode, le taux de remplissage ou la pression de l’eau de refroidissement
Electro Slag Remelting (ESR) is widely used for the production of high-value-added alloys such as special steels or nickel-based superalloys. Because of high trial costs and complexity of the process, trial-and-error based approaches are not well suitable for fundamental studies and optimization of the process.Consequently, a transient-state numerical model which accounts for electromagnetic phenomena and coupled heat and momentum transfers in an axisymmetrical geometry has been developed. The model simulates the continuous growth of the electroslag remelted ingot through a mesh-splitting method. In addition, solidification of the metal and slag is modelled by an enthalpy-based technique. A turbulence model is implemented to compute the motion of liquid phases (slag and metal), while the mushy zone is described as a porous medium whose permeability varies with the liquid fraction, thus enabling an accurate calculation of solid/liquid interaction. The coupled partial differential equations are solved using a finite-volume technique.Computed results are compared to experimental observation of 4 industrial remelted ingots fully dedicated to the model validation step. Pool depth and shape are particularly investigated in order to validate the model. Comparison shows that the model can be used as a predictive tool to analyse the process behavior. Nevertheless, it is necessary to pay a particular attention to the estimation of the thermophysical properties of metal and especially slag.These results provide valuable information about the process performance and influence of operating parameters. In this way, we present some examples of model use as a support to analyse the influence of operating parameters. We have studied the variation of electrode immersion depth, fill ratio and water pressure in the cooling circuit
APA, Harvard, Vancouver, ISO, and other styles
2

Hugo, Mathilde. "Contribution à la modélisation du procédé de refusion sous laitier éléctroconducteur." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0091.

Full text
Abstract:
Le procédé de refusion sous laitier électroconducteur (ESR =Electro Slag Remelting) permet de produire des alliages à haute valeur ajoutée utilisés pour des applications critiques. Les mesures in-situ sur les fours industriels étant coûteuses, la simulation numérique est essentielle à la maitrise et à la compréhension de ce procédé complexe. L’Institut Jean Lamour a développé depuis plusieurs années un modèle 2D axisymétrique qui permet de simuler la refusion d’une électrode consommable au sein d’une lingotière considérée comme totalement isolée électriquement du reste du système. Sont alors décrit en régime transitoire les transferts couplés de chaleur et de quantité de mouvement, ainsi que le passage du courant électrique dans le laitier et le lingot lors de la croissance et de la solidification de ce dernier. Les connaissances acquises au cours des dernières années sur le procédé ESR remettent en cause l’hypothèse d’isolation électrique du moule au cours de la refusion. L’objet de cette thèse est d’intégrer et d’étudier la possibilité de passage de courant entre le laitier et la lingotière au cours de la refusion. Un premier modèle a été développé. Il consiste en un calcul électromagnétique complet dans l'ensemble du système pour une géométrie simplifiée. Il a permis de simplifier la mise au point du modèle global, tout en fournissant de premiers résultats. Par la suite, un modèle totalement couplé a été finalisé puis les modifications du code ont fait l’objet de validations avec des mesures expérimentales. Des études de sensibilité ont été menées pour tester l’influence des propriétés du laitier et des paramètres opératoires sur la qualité du lingot final
The ElectroSlag Remelting process (ESR) is widely used to produce high added value alloys for critical applications (aerospace industry, nuclear plants, etc.). Trial-and-error based approaches being expensive, numerical simulation is fundamental to improve the knowledge and the understanding of this complex process. The Institut Jean Lamour has been developing for several years a numerical code to simulate the melting of a consumable electrode, supposedly perfectly cylindrical, within a mold assumed to be perfectly electrically insulated from the electrode-slag-ingot system. Based on these assumptions, the 2-D axisymmetrical transient-state numerical model accounts for electromagnetic phenomena and coupled heat and momentum transfers, to simulate the continuous growth of the electroslag remelted ingot and the solidification of the metal and slag. Recent studies on the ESR process are challenging the insulated mold hypothesis. Therefore, the main objective of the thesis is to acknowledge and study the existence of a mold current during an ESR remelting. A first model has been set-up, aimed to simulate the electromagnetic phenomena in the whole system for a simplified geometry. The possibility of the existence of such a mold current was confirmed. Based on this work, a fully-coupled model has then been developed and the results have been compared with experimental data to check the validity of the modifications. The influence of slag properties and operating parameters on the final quality of the ingot has been tested
APA, Harvard, Vancouver, ISO, and other styles
3

Chaulet, Jérémy. "Modélisation du procédé de refusion sous laitier électroconducteur : représentation des transferts énergétiques métal-laitier." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0145.

Full text
Abstract:
Le procédé de refusion sous laitier électroconducteur (ESR) permet d’élaborer des alliages à haute valeur ajoutée caractérisés par une qualité métallurgique améliorée. Ces alliages sont notamment destinés aux industries de pointe, comme l’aéronautique ou l’énergie. La simulation de ce procédé est un outil essentiel afin d’améliorer la compréhension des phénomènes mis en jeu lors des refusions et d’optimiser la conduite du procédé. Afin d’améliorer un modèle 2D axisymétrique du procédé ESR développé par l’Institut Jean Lamour en collaboration avec la société Aubert & Duval, une description précise du transfert de métal liquide via les gouttes a été développée. Dans un premier temps, le comportement des gouttes chutant dans le laitier a été analysé grâce à un modèle diphasique 2D axisymétrique spécifiquement développé. Celui-ci a été nourri par les résultats de simulations tridimensionnelles détaillées de la formation et de la chute des gouttes pendant la refusion ESR, réalisées dans le cadre d’un partenariat avec la Montanuniversität Leoben (Autriche). L’influence que peuvent exercer les gouttes sur l’écoulement du laitier, les transferts thermiques et les phénomènes électromagnétiques a été mise en évidence. Un modèle simplifié d’interactions gouttes-laitier a été implémenté dans le modèle global du procédé ESR. La description du transport de métal liquide au sommet du lingot en cours de croissance a alors été améliorée, et tient notamment compte de l’influence en profondeur des gouttes sur le puits liquide. La nouvelle version du modèle a été validée par comparaison à des lingots de taille industrielle. Afin de discuter du lien entre puissance consommée et vitesse de fusion, un modèle thermique monodimensionnel de l’électrode consommable a été développé. Ce dernier a également été implémenté dans le modèle global du procédé afin d’estimer la vitesse de fusion. Enfin, des refusions à l’échelle industrielle ont été spécifiquement effectuées pour étudier l’influence de la profondeur d’immersion de l’électrode. En associant observations expérimentales et résultats de simulations, trois régimes d’immersion ont été différenciés, en particulier en termes de résistance équivalente du laitier. L’impact de l’immersion sur la solidification du lingot a été discuté
The electroslag remelting process (ESR) is used to produce high added value alloys characterized by a higher metallurgical quality. These alloys are reserved for specific industries, such as aeronautics or energy. Numerical modeling of the ESR process is a tool-of-choice to gain a better understanding of the phenomena occurring during the remelting and optimize the operation. In order to improve a 2D axisymmetric model of the ESR process, previously developed at the Jean Lamour Institute in close collaboration with Aubert & Duval company, an accurate description of the metal transfers to the ingot via the liquid metal droplets has been developed. First of all, liquid metal droplets behavior has been investigated using a specifically developed 2D diphasic model of the slag bath. This model has been supported by 3D detailed simulations of dripping phenomena during electroslag remelting, performed at Montanuniversitaet Leoben (Austria). The influence of falling drops on the slag hydrodynamics, heat tranfer and electromagnetic phenomena has been highlighted. Afterwards, a simplified model of drops-slag interactions has been implemented into the global ESR model. The liquid metal transfer representation at the top of the ingot has then been enhanced, and considers the in-depth impact on the melt pool. The newly developed version of the global model has been validated by comparing results to industrial-sized remelted ingots. In order to discuss the relationship between power consumed and melt rate, a 1D thermal model of the consumable electrode has been set-up. The latter has been implemented into the global ESR model to estimate the melt rate. Finally, industrial-scale ingots have been specially remelted to study the influence of electrode immersion depth. Associating experimental observations and simulation results, three immersion regimes have been distinguished, especially regarding to the slag equivalent resistance. The impact of immersion depth on ingot solidification have been discussed
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "ElectroSlag Remelting (ESR)"

1

Shi, Chengbin, Jing Li, and Shufeng Yang. "Sulfide and Nitride Inclusion Evolution During ESR." In Electroslag Remelting Towards Clean Steel, 117–39. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Shi, Chengbin, Jing Li, and Shufeng Yang. "Evolution of Original Oxide Inclusions During ESR." In Electroslag Remelting Towards Clean Steel, 141–68. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Shi, Chengbin, Jing Li, and Shufeng Yang. "Deoxidation of ESR and Its Correlation with Oxide Inclusions." In Electroslag Remelting Towards Clean Steel, 21–72. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Shi, Chengbin, Jing Li, and Shufeng Yang. "Modification of Alumina and MgO·Al2O3 Inclusions by Calcium Treatment During ESR." In Electroslag Remelting Towards Clean Steel, 183–217. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Shi, Chengbin, Jing Li, and Shufeng Yang. "Evolution of Oxide Inclusions in Si–Mn-Killed Steel During ESR." In Electroslag Remelting Towards Clean Steel, 169–82. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Shi, Chengbin, Jing Li, and Shufeng Yang. "Role of Calcium Modification of Oxide Inclusions During ESR on Primary Carbides." In Electroslag Remelting Towards Clean Steel, 219–46. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Shi, Chengbin, Jing Li, and Shufeng Yang. "Reoxidation of Liquid Steel During ESR and Its Effect on Oxide Inclusions." In Electroslag Remelting Towards Clean Steel, 73–91. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3257-3_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Birol, Burak, and Muhlis Nezihi Saridede. "Recycling of High Quality Steel Scraps Directly in Electroslag Remelting Process (ESR)." In EPD Congress 2011, 959–65. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118495285.ch106.

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

Kelkar, Kanchan M., Suhas V. Patankar, Shesh K. Srivatsa, Ramesh S. Minisandram, David G. Evans, John J. deBarbadillo, Richard H. Smith, Randolph C. Helmink, Alec Mitchell, and Howard A. Sizek. "Computational Modeling of Electroslag Remelting (ESR) Process Used for the Production of High-Performance Alloys." In Proceedings of the 2013 International Symposium on Liquid Metal Processing and Casting, 1–12. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118830857.ch1.

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

Kelkar, Kanchan M., Suhas V. Patankar, Shesh K. Srivatsa, Ramesh S. Minisandram, David G. Evans, John J. deBarbadillo, Richard H. Smith, Randolph C. Helmink, Alec Mitchell, and Howard A. Sizek. "Computational Modeling of Electroslag Remelting (ESR) Process Used for the Production of High-Performance Alloys." In Proceedings of the 2013 International Symposium on Liquid Metal Processing & Casting, 3–12. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48102-9_1.

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

Conference papers on the topic "ElectroSlag Remelting (ESR)"

1

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.

Full text
Abstract:
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 electrode is not at steady state. A new method of ESR control has been developed that incorporates an accurate, reduced-order melting model to continually estimate the temperature distribution in the electrode. The ESR process is highly nonlinear, noisy, and has coupled dynamics. An extended Kalman filter and an unscented Kalman filter were chosen as possible estimators and compared in the controller design. During the highly transient periods in melting, the unscented Kalman filter showed superior performance for estimating and controlling the system.
APA, Harvard, Vancouver, ISO, and other styles
2

Hong, S., L. Kang, and J. Shin. "Development of Electroslag Remelting (ESR) Simulator to Predict Chemical Reaction During the ESR Process." In 8th International Congress on the Science and Technology of Steelmaking. AIST, 2022. http://dx.doi.org/10.33313/531/040.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Nakano, M., K. Kawano, and M. Mikami. "Manufacturing of Trial Rotor Forging of 9%Cr Steel Containing Co and B (X13CrMoCoVNbNB9-2-1) for Ultrasupercritical Steam Turbines." In AM-EPRI 2013, edited by D. Gandy and J. Shingledecker. ASM International, 2013. http://dx.doi.org/10.31399/asm.cp.am-epri-2013p0321.

Full text
Abstract:
Abstract A 9% Cr steel containing cobalt and boron, X13CrMoCoVNbNB9-2-1, has been manufactured by electroslag remelting (ESR) to evaluate its performance and to compare its creep strength and microstructure to a forging made from electroslag hot-topping ingot. The evaluation results confirm that it is possible to produce rotor forgings with homogeneous composition and good properties by the ESR process. The results of creep rupture tests up to 5000 h indicate that the creep strength of the forging made from ESR ingot is similar to that of the forging produced by the electroslag hot-topping process. Martensitic lath microstructures with high density dislocations and the precipitations of M23C6, VX, NbX and M2X are observed after the quality heat treatments at the center portion of both forgings. There is no large difference in the martensitic lath widths, distributions, and sizes of those particles between both trial forgings.
APA, Harvard, Vancouver, ISO, and other styles
4

Pedchenko, Yevhen, Yuriy Kostetsky, Ganna Polishko, Volodymyr Petrenko, and Volodymyr Zaitsev. "Recycling of Steel Using the Esr Method in the Conditions of Limited Resources of Raw Materials to Preserve the Chemical Composition and Properties." In International Young Scientists Conference on Materials Science and Surface Engineering. Karpenko Physico-Mechanical Institute of the NAS of Ukraine, 2023. http://dx.doi.org/10.15407/msse2023.047.

Full text
Abstract:
The paper examines the possibilities of modern electroslag remelting technology and modern electroslag furnaces for recycling alloyed steel grades. The expediency of the EES according to the two-circuit scheme of electrodes with non-constant length geometric parameters and non-compact metal charge materials is shown. It has been experimentally proven that the two-circuit EPC allows for efficient recycling of spent small-sized tools, both assembled into consumable electrodes and in the form of a non-compact charge, while preserving the chemical composition of the metal and obtaining ingots with a high-quality surface.
APA, Harvard, Vancouver, ISO, and other styles
5

Di Gianfrancesco, A., S. Budano, P. Lombardi, M. Paura, S. Neri, M. Calderini, and N. Longari. "Experience in Manufacture of High Chromium Forged Rotor Steels." In AM-EPRI 2013, edited by D. Gandy and J. Shingledecker. ASM International, 2013. http://dx.doi.org/10.31399/asm.cp.am-epri-2013p0304.

Full text
Abstract:
Abstract Driven by the need to reduce CO2 emissions through increased steam temperature and pressure in new power plants, research in Europe led to the development of enhanced high-chromium steels with improved creep resistance and service temperature stability. After years of development, Rotor E, a steel composition created during the COST programs (501, 522, and 536), has become a commercially available product. While traditionally forged and remelted using electroslag remelting (ESR), this paper demonstrates the successful production of large rotor components using a conventional process without ESR, achieved through tailored process control. This paper details Società delle Fucine's (SdF) current production of Rotor E using a conventional route based on ladle furnace and vacuum degassing, as well as the mechanical and creep behaviors of the resulting forged products. Additionally, SdF produced a prototype FB2 rotor using a conventional process. FB2, a 10% Cr steel containing cobalt and boron but lacking tungsten, emerged from the COST 522 program as the best candidate for scaling up from a laboratory experiment to a full-sized industrial component. Notably, the addition of boron effectively improved the microstructure's stability and consequently enhanced the creep resistance of these new, advanced martensitic steels. Finally, the paper will present updates on the long-term characterization program for the FB2 steel trial rotor.
APA, Harvard, Vancouver, ISO, and other styles
6

Chen, Mei-fang, Sheng-qiang Cao, and Kai Dong. "Study on the Manufacturing Process of Large Super Alloy X-750 Forgings for Nuclear Equipment." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-91791.

Full text
Abstract:
Abstract X-750 is a nickel-chromium based super alloy with high strength, high toughness, excellent creep resistance and good stress relaxation resistance at high temperature. It can be used in the manufacture of holddown springs for reactor vessel internals (RVI). Because of high content of alloying elements and the large size of ingot for the RVI holddown spring, observations by optical microscopy (OM) and scanning electron microscopy (SEM) showed that there was obvious dendrite segregation and serious carbonitride net in the as-cast electroslag remelting (ESR) ingot. Before forging, homogenization treatment was carried out for the ESR ingot to reduce element segregation, and promote the secondary carbonitrides dissolve into the alloy, which could significantly improve the malleability of the billet and reduce forging cracks. The homogenization process adopted in this study was annealing at 1220°C for 70 hours. In addition, the final forging temperature also played a key role in the control of formability of the billet and grain size of the forging. The carbonitrides or grain size of both the as-cast and forged samples annealed at 900°C∼1200°C for 10h were observed, and also charpy impact tests were carried out on the forged and annealed samples. The results showed that the final forging temperature for upsetting and drawing process should be no less than 1100°C, and the final forging temperature for forming process could be reduced to 1000°C. After solution and aging treatment, the comprehensive mechanical properties of the forging were excellent, with KV impact value at room temperature as high as 92J, yield strength of tensile test at 350°C up to 696MPa, and tensile strength up to 1019MPa.
APA, Harvard, Vancouver, ISO, and other styles
7

Liu, Yu, Tao Han, Yezheng Li, Zhanghua Yin, Peng Zhu, Lijun Yan, and Qiang Li. "Development of Large Diameter Heavy Wall Seamless Tee Fitting of WPHY-80 Grade for Low Temperature Pipeline Station Application." In 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78748.

Full text
Abstract:
This paper describes the development of large diameter heavy wall seamless tee fitting of WPHY-80 grade for low temperature pipeline station application. Steel tees with thicker wall generally tend to have low fracture toughness either in pipe body or in weld joint and low weldability. Therefore, improvement of fracture toughness and weldability are particularly important with respect to development of higher strength and thicker wall seamless tee fittings. For the requirement of the China-Russia Eastern Gas Pipeline Project, WPHY-80 large diameter, seamless heavy wall reducing outlet tees were developed, with DN1400 × DN1200 and 57mm wall thickness. The billet steel production process was electroslag remelting (ESR), and the tee fitting production process used a forging and hot extrusion combination. Finally, quenching and tempering were carried out. In this paper, the mechanical properties and microstructure of WPHY-80 seamless tee were studied. The results of mechanical testing showed that the tensile yield strength of the tee body was more than 590 MPa and also provided excellent low temperature toughness (CVN > 200 J at −45°C), which met the requirements of the specification for fittings applied in the China-Russia Eastern Gas Pipeline Project. In addition, the results of welding procedure qualification showed that the welding performance of the WPHY-80 seamless tee was excellent.
APA, Harvard, Vancouver, ISO, and other styles
8

Detrois, Martin, Paul D. Jablonski, and Jeffrey A. Hawk. "Martensitic Steel CPJ7 for Improved High-Temperature Creep Capabilities in Power Plants." In AM-EPRI 2019, edited by J. Shingledecker and M. Takeyama. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.am-epri-2019p0104.

Full text
Abstract:
Abstract A creep resistant martensitic steel, CPJ7, was developed with an operating temperature approaching 650°C. The design originated from computational modeling for phase stability and precipitate strengthening using fifteen constituent elements. Approximately twenty heats of CPJ7, each weighing ~7 kg, were vacuum induction melted. A computationally optimized heat treatment schedule was developed to homogenize the ingots prior to hot forging and rolling. Overall, wrought and cast versions of CPJ7 present superior creep properties when compared to wrought and cast versions of COST alloys for turbines and wrought and cast versions of P91/92 for boiler applications. For instance, the Larson Miller Parameter curve for CPJ7 at 650°C almost coincides with that of COST E at 620°C. The prolonged creep life was attributed to slowing down the process of the destabilization of the MX and M23C6 precipitates at 650°C. The cast version of CPJ7 also revealed superior mechanical performance, well above commercially available cast 9% Cr martensitic steel or derivatives. The casting process employed slow cooling to simulate the conditions of a thick wall full-size steam turbine casing but utilized a separate homogenization step prior to final normalization and tempering. To advance the development of CPJ7 for commercial applications, a process was used to scale up the production of the alloy using vacuum induction melting (VIM) and electroslag remelting (ESR), and underlined the importance of melt processing control of minor and trace elements in these advanced alloys.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "ElectroSlag Remelting (ESR)"

1

PAL, UDAY B. Electroslag Remelting (ESR) Slags for Removal of Radioactive Oxide Contaminants from Stainless Steel, Annual Report (1998-1999). Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/12659.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'ElectroSlag Remelting (ESR)' for particular source types:
Journal articles
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