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Journal articles on the topic 'Refractory corrosion'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Zhao, Ding Guo, Shu Huan Wang, Xiao Jie Cui, and Jian Long Guo. "Research on Refractory Material Corrosion in Steelmaking Engineering." Advanced Materials Research 578 (October 2012): 146–49. http://dx.doi.org/10.4028/www.scientific.net/amr.578.146.

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Researched on the refractory material corrosion by experiments. Each refractory was measured to take four different parts, and the average corrosion thicknesses of silicon carbide, quartz and corundum were 0.52mm, 1.03mm and 1.40mm. The corrosion of corundum refractory was most serious, and quartz refractory had a certain degree of corrosion, but it was not very serious. The corrosion of silicon carbide refractory was the least. In the experiment in intermediate frequency furnace, only upper and lower parts of slag line were connected to the refractory and the degree of corrosion was little fo

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2

Chen, Man Ying, Yong Jun Zhang, Jing Tao Han, and De Ming Yao. "The Full Immersion Test Research of Refractory Weathering Steel." Advanced Materials Research 941-944 (June 2014): 965–69. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.965.

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The paper mainly studied the corrosion properties of refractory weathering steel under chloride ion erosion environment. The full immersion tests on refractory weathering steel and carbon steel Q235 were conducted; and then a comparative analysis from the perspective of the corrosion weightlessness, the macro and micro morphology of rust layers have been made. Results indicated that refractory weathering steel and carbon steel corrosion weightlessness is relatively close to the early stage of corrosion, but the trend is reversed in the mid to late; refractory weathering steel corrosion weightl

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3

Cheng, Guishi, Ying Zhao, Fei Long, et al. "Analysis and Prediction of Corrosion of Refractory Materials by Sodium Salts during Waste Liquid Incineration—Thermodynamic Study." Materials 13, no. 21 (2020): 4729. http://dx.doi.org/10.3390/ma13214729.

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Incineration of high-content sodium salt organic waste liquid will corrode the refractory material in the incinerator, causing the refractory material to peel off and be damaged. A thermodynamics method was used to study the thermodynamic properties of three common sodium salts (NaCl, Na2CO3 and Na2SO4) on the corrosion of refractory materials (MgO·Cr2O3, MgO·Al2O3, Al2O3, MgO and Cr2O3). The results determined that MgO has the best corrosion resistance and is not corroded by the three sodium salts. On this basis, the thermodynamic corrosion experiments of NaCl corrosion of magnesium oxide at

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4

Zhao, Ding Guo, Shu Huan Wang, Xiao Jie Cui, and Jian Long Guo. "The Mechanism Research on the Refractory Material Corrosion in Material Engineering and its Applications." Advanced Materials Research 578 (October 2012): 142–45. http://dx.doi.org/10.4028/www.scientific.net/amr.578.142.

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The mechanism of refractory material corrosion was analyzed. The laboratory amorphous alloy smelting of the mother prefabricated crucible, reaction process is basically to crucible refractory material of blast furnace slag corrosion, melt corrosion is small. Generally smelting amorphous mother alloy was a difficult thing, and it shown that the basicity was better around 1.0. Compared with quartz refractory, it is good to choose the silicon carbide refractory materials, while smelting amorphous alloy.

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5

Sagadin, Christoph, Stefan Luidold, Christoph Wagner, et al. "Thermodynamic Refractory Corrosion Model for Ferronickel Manufacturing." Metallurgical and Materials Transactions B 52, no. 2 (2021): 1052–60. http://dx.doi.org/10.1007/s11663-021-02077-x.

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AbstractA thermodynamic model, based on SimuSage, was developed to simulate refractory corrosion between a magnesia-based refractory material and ferronickel (FeNi) slags. The model considers a theoretical cross-section of a refractory material to simulate a ferronickel smelter application. The current model is structured into 10 zones, which characterize different sectors in the brick (hot to cold side) perpendicular to the refractory surface with an underlying temperature gradient. In each zone, the model calculates the equilibrium between the slag and a specified amount of refractory materi

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6

Šolc, Marek, Eva Grambalová, and Marian Šofranko. "The Quality Interaction of Molten Salts in the Systems SiO₂-Al₂O₃." Advanced Materials Research 849 (November 2013): 20–25. http://dx.doi.org/10.4028/www.scientific.net/amr.849.20.

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The aim of this study was to realize and evaluate laboratory corrosion tests associated with problems such as wear of refractory materials, for example, at processing of aluminium. Corrosion tests were carried out by static crucible corrosion test in laboratory resistive furnace at 850 °C during 2 hours in air atmosphere. Two types of aluminum-silica molded refractories were used as a corroding material. As corrosive media were applied pure chlorides, namely: sodium chloride, potassium chloride. The results of corrosion tests were evaluated by macroscopic, microscopic, chemical and semiquantit

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7

Grambálová, E., P. Vadász, and J. Petrík. "Interaction of molten salts in the systems SiO2-Al2O3." Cerâmica 59, no. 352 (2013): 570–75. http://dx.doi.org/10.1590/s0366-69132013000400013.

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The aim of this study was to realize and evaluate laboratory corrosion tests for a solution of problems such as wear of refractory materials at processing of aluminum, for example. The static crucible corrosion tests were carried out in laboratory resistive furnace at 850 °C during 2 h air atmosphere. Two standards of alumina-silica shaped refractory bricks were used as a corroding material. Pure sodium chloride and potassium chloride were applied as a corrosive media. The results of tests were evaluated by macroscopic, microscopic, chemical and semiquantitative EDX analysis. Sodium chloride s

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8

Zhao, Ying, Guishi Cheng, Fei Long, et al. "Analysis and Prediction of Corrosion of Refractory Materials by Potassium during Biomass Combustion-Thermodynamic Study." Materials 11, no. 12 (2018): 2584. http://dx.doi.org/10.3390/ma11122584.

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As a kind of renewable resource, biomass has been used more and more widely, but the potassium contained in biomass can cause corrosion of the refractory. For a better understanding of corrosion thermodynamic mechanisms, the five components of common refractory materials (magnesium chrome spinel MgO·Cr2O3, magnesium aluminum spinel MgO·Al2O3, Al2O3, MgO, and Cr2O3) with potassium salts (K2CO3, K2SO4, and KCl) under high-temperature were studied by using the FactSageTM 7.0 software. Thermodynamic calculation results indicate that MgO is the best corrosion resistance of the five components of re

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9

Qiu, G. B., and Y. Xu. "Interaction mechanism between refractory and melts in iron bath smelting reduction process." Journal of Mining and Metallurgy, Section B: Metallurgy 46, no. 2 (2010): 131–40. http://dx.doi.org/10.2298/jmmb1002131q.

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The corrosion behavior of three sorts of refractories based on alumina-graphite were studied by immersion tests. The melts included smelting reduction molten slag and corresponding carbon saturated molten iron. The influence of test temperature, FeO content in slag and specimen rotative velocity on the corrosion rate of refractories was examined. By means of SEM and EDS, the microstructure change of the refractories after immersion test in kinds of melts was studied. The morphology of the deteriorated layer showed the corrosion extent of refractories. With the addition of zirconia and titania

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10

Reichert, Wanja, Jonas Nießen, Peter Leto, et al. "Correlation of Thermo-Elastic Material and Corrosion Behavior of Refractory Castables by In-Situ Measurements." Ceramics 3, no. 1 (2020): 101–13. http://dx.doi.org/10.3390/ceramics3010011.

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Corrosion is one of the most common wear mechanisms of refractories. Corrosive attacks lead to chemical and microstructural changes. Hot corrosion compromises chemical and/or physical interactions. Thus, the process is complex and not yet fully understood. Currently, corrosion is investigated post mortem by means of X-ray diffraction or scanning electron microscopy. These methods have the drawback that some information is lost on cooling. In-situ measurements, however, take measurements within the process. In resonant frequency and damping analysis (RFDA), a sample is excited to vibrate by a m

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11

Dunkl, Michael. "Boundary Layers Refractory/Glass Melt and Glass Defects." Advanced Materials Research 39-40 (April 2008): 601–6. http://dx.doi.org/10.4028/www.scientific.net/amr.39-40.601.

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In this paper the formation of boundary layers and their behaviour regarding corrosion and glass defect potential of different refractory/glass melt combinations will be discussed. The reaction between refractories and glass melts is determined by the diffusion of the different ions from the glass melt into the refractory material and vice versa. The connected solution reactions lead to the formation of a saturation boundary layer, which influences the corrosion behaviour and the glass defect potential. The behaviour of the boundary layers of various refractory/glass melt types are partly comp

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12

Sunayama, Hiroyuki, and Masayasu Kawahara. "Effect of Dense Layer Formation on Dissolution Rate of MgO-C Refractory in Molten Slag." Advances in Science and Technology 45 (October 2006): 162–66. http://dx.doi.org/10.4028/www.scientific.net/ast.45.162.

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The corrosion test for magnesia-carbon refractory, MgO-C, with dense layer has been carried out by a rotating cylinder method at 1673 K. The specimen, which was a cylinder of 25 mm diameter and 25mm height, was rotated in molten slag at 50 rpm. The chemical composition of slag was CaO-SiO2-FeO-MgO-CaF2. The corrosion rate was determined by the variation of radius of the cylindrical specimen against corrosion time. The decrease of radius was obtained by a calculation of dissolved MgO into the slag. In addition, the diameter of the specimen was measured with a slide calipers after the corrosion

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13

Young, D. J. "Gas Corrosion of High Performance Refractory Materials." Materials Science Forum 34-36 (January 1991): 651–55. http://dx.doi.org/10.4028/www.scientific.net/msf.34-36.651.

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14

Mukai, Kusuhiro. "Marangoni flows and corrosion of refractory walls." Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 356, no. 1739 (1998): 1015–26. http://dx.doi.org/10.1098/rsta.1998.0206.

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15

Šolc, Marek, Martin Kotus, Eva Grambalová, Juraj Kliment, and Pavol Palfy. "Impact Of Corrosion Effect On The Quality And Safety Of Refractory Materials." System Safety: Human - Technical Facility - Environment 1, no. 1 (2019): 760–67. http://dx.doi.org/10.2478/czoto-2019-0097.

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AbstractThe quality of refractory materials plays an important role especially in high temperature processes. In case of violation of qualitative properties of refractory materials, the safety of the use of the technological equipment in which these materials are used is compromised. The requirements on the quality of refractories and their properties are now high, as their operating life should be as long as possible. The aim of the article is to point out the quality of refractory material in contact with corrosive media, to analyze the technological factors that affect the quality and safet

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16

Nevřivová, Lenka. "MgO Influence on the Fundamental Characteristics of Corundum Refractory Castables." Key Engineering Materials 722 (December 2016): 81–86. http://dx.doi.org/10.4028/www.scientific.net/kem.722.81.

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The paper focuses on the determination of how periclase content in the raw material influences the final properties of no-cement refractory castables. The motivation for this research was the continued pressure on increasing the utility properties of refractory castables, especially their corrosion resistance. The influence of MgO was observed in vibration-compacted refractory castables; the mixtures were made so that the consistency of each one was the same. There were only minimal differences in the water content of the mixtures. The mineral composition of the raw materials used in the manuf

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17

Šimurka, Peter, Jozef Kraxner, Peter Vrábel, and Tomáš Paučo. "Mechanism of AZS Refractory Corrosion in Barium Soda Lime Potassium Silicate Glass Melt." Key Engineering Materials 702 (July 2016): 125–29. http://dx.doi.org/10.4028/www.scientific.net/kem.702.125.

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Al2O3 - ZrO2 - SiO2 refractory corrosion in barium soda lime potassium silicate glass melt have been studied. The composition of glass phase of unused AZS and the concentration profiles of the principal oxides in the glass phases of corroded AZS materials were determined. The refractory samples have been taken from the melting parts of a furnace after production termination as well as from the material where the laboratory static corrosion tests have been conducted. SEM and EDX analysis have been provided on the samples located in the part above and below the metal line corrosion.The corrosion

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18

Huang, A., P. Lian, L. Fu, H. Gu, and Y. Zou. "Modeling and experiment of slag corrosion on the lightweight alumina refractory with static magnetic field facing green metallurgy." Journal of Mining and Metallurgy, Section B: Metallurgy 54, no. 2 (2018): 143–51. http://dx.doi.org/10.2298/jmmb171014002h.

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Electromagnetic field is applied widely in metallurgy and other high temperature processes, and affects the behavior of melts. The lightweight alumina based carbon free refractory is of importance for energy-saving, consumption reduction and high quality steel production, and the slag corrosion resistance is significant concerning its service life. Does electromagnetic field control the slag corrosion behavior on the lightweight alumina refractory? In this paper, a multi-field coupled model was established to describe the slag corrosion process in an electromagnetic field. The mathematical mod

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19

Ziemnicki, Mariusz, Alireza Rezaie, Mark Snyder, and Priyadarshi Desai. "Novel Magnesia Carbon Slide Gate Refractory Material for Corrosive Steel Application." Advances in Science and Technology 70 (October 2010): 141–49. http://dx.doi.org/10.4028/www.scientific.net/ast.70.141.

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Slide gates are used to control the flow rate of molten steel in continuous casting. The properties that are important for materials for slide gate application are corrosion resistance, thermal shock resistance, abrasion resistance, and strength. However, operating conditions and in particular steel chemistries vary by shop and require development of different refractory material qualities. Alumina-carbon refractories are the prevalent family for slide gate application due to their superior thermo-mechanical properties. However, they suffer from extensive corrosion in aggressive applications.

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20

Firoozjaei, E. A., A. Saidi, A. Monshi, and P. Koshy. "The effect of microsilica and refractory cement content on the properties of andalusite based Low Cement Castables used in aluminum casthouse." Cerâmica 56, no. 340 (2010): 411–21. http://dx.doi.org/10.1590/s0366-69132010000400016.

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The bonding system in low cement castables is achieved by the use of calcium aluminate cement, microsilica and reactive alumina. The lime/silica ratio critically impacts the liquid phase formation at high temperatures and subsequently the corrosion resistance and the mechanical and physical properties of the refractory. In the current study, the effects of microsilica and cement contents on the corrosion resistance and the physical and mechanical properties of Andalusite Low Cement Castables (LCCs) refractories were investigated. Alcoa Cup test was used to evaluate the corrosion resistance of

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21

Zhang, Li, Da Quan Zhang, Yu Meng, and Li Xin Gao. "Detection and Inhibition of Refractory Steel Corrosion by Rhodamine-Based Compound." Advanced Materials Research 864-867 (December 2013): 672–76. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.672.

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A rhodamine-based fluorescent compound, spiro[1H-isoindole-1,9′-[9H]xanthen] -3(2H)-one, ′,6′-bis(diethylamino)-2-[(1-methylethylidene)-amino] (RB1), is developed to detect and inhibit the refractory steel corrosion in 3% NaCl solution. The inhibition effect was evaluated by electrochemical measurements. RB1 suppresses the cathodic corrosion reaction and shifts the corrosion potential toward more negative values. RB1 exhibits a turn-on fluorescence emission in the presence of Fe 3+ ions. The selectivity of RB1 over other commonly coexistent Cu2+, Fe 2+ and Mn2+ was investigated. The variation

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22

Zaitsev, S. V., V. A. Doroganov, E. A. Doroganov, T. A. Varenikova, and M. A. Smirnova. "THE CORROSION RESISTANCE OF MULLITE-SILICONCARBIDE REFRACTORY COMPOSITES." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 10 (January 1, 2017): 38–41. http://dx.doi.org/10.17073/1683-4518-2017-10-38-41.

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23

Balandis, A., and D. Nizeviciene. "Silica crown refractory corrosion in glass melting furnaces." Science of Sintering 43, no. 3 (2011): 295–303. http://dx.doi.org/10.2298/sos1103295b.

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The critical parameters of silica refractories, such as compressive strength, bulk, density, quantity of silica, microstructure and porosity were evaluated of unused and used bricks to line the crowns of glass furnaces, when the rate of corrosion of crowns were about 2 times greater. The change of these parameters, the chemical composition and formation of the microcracks in the used silica refractories material were studied. It was established that the short time at service of container glass furnace crown can be related to low quality of silica brick: high quantity of CaO and impurities, low

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24

Sunayama, Hiroyuki, Yuichi Hiramatsu, and Masayasu Kawahara. "Corrosion Mechanism of Refractory Immersed in Molten Slag." ECS Transactions 33, no. 15 (2019): 15–20. http://dx.doi.org/10.1149/1.3555058.

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25

Mahapatra, Manoj K. "Review of corrosion of refractory in gaseous environment." International Journal of Applied Ceramic Technology 17, no. 2 (2019): 606–15. http://dx.doi.org/10.1111/ijac.13418.

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26

Afshar, Saied, and Claude Allaire. "The corrosion of refractory aggregates by molten aluminum." JOM 52, no. 5 (2000): 43–46. http://dx.doi.org/10.1007/s11837-000-0034-z.

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27

Orlova, L. A., S. A. Zhilichev, O. N. Borisova, and A. E. Kuleva. "Corrosion of refractory materials in iron-containing melts." Glass and Ceramics 53, no. 1-2 (1996): 18–21. http://dx.doi.org/10.1007/bf01171392.

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28

Sokolov, V. A., and M. D. Gasparyan. "Refractory Corrosion Resistance in Molten Lead-Niobium Glass." Refractories and Industrial Ceramics 59, no. 2 (2018): 223–26. http://dx.doi.org/10.1007/s11148-018-0210-8.

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29

Nevřivová, Lenka. "The Impact of In Situ-Formed Spinel on the Porosity of No-Cement Refractory Castables." Materials Science Forum 908 (October 2017): 139–44. http://dx.doi.org/10.4028/www.scientific.net/msf.908.139.

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The paper focuses on the determination of how in-situ formed magnesia-alumina spinel (MA spinel) content in corundum refractory castables influences the final properties and pore size distribution of no-cement refractory castables. The motivation for this research was the continued pressure on increasing the utility properties of refractory castables, namely their corrosion resistance to blast-furnace slag. The influence of MA spinel content was observed in vibration-compacted refractory castables (three mixtures). The corrosion test was performed to determine the dependence of the size of the

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30

Kushchenko, P. O., V. V. Primachenko, I. G. Shulyk, et al. "Researches on development of alumina-chromia-zirconium silicate refractories containing 60 % Cr2O3." Scientific research on refractories and technical ceramics 120 (December 30, 2020): 12–28. http://dx.doi.org/10.35857/2663-3566.120.02.

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Researches of a branch composition and firing atmosphere influence on structure and properties of pressed alumina-chromia-zirconium silicate refractories with 60 % Cr2O3 content were carried out. The optimal branch composition which after firing in oxidizing atmosphere provides obtaining of samples with open porosity 24.8 %, apparent density 3.46 g/cm3, cold crushing strength 78 N/mm2 and thermal shock resistance by 950 ºС — water — 7 thermal cycles was established. The phase composition of samples was determined. It has been shown that, firing in a reducing atmosphere, as well as titanium oxi

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31

Zhang, Mei Jie, Xiao Long Lin, Wu Yan, and Huang Ao. "Numerical Simulation of Flow-Induced Corrosion in One-Strand Tundish." Advanced Materials Research 105-106 (April 2010): 142–45. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.142.

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Flow control devices made of refractories are established in the tundish to modify the flow characteristics. In practical producing, the metallurgical function of flow control devices is weakened because of refractories corrosion. In this subject, an index named refractory wear factor which is used to evaluate the refractory wear was defined at first. And then, the characteristics of molten steel flow and the distribution of temperature and the refractory wear factor in a one-strand tundish equipped with flow control devices of a turbulence inhibitor, a weir and a dam were numerically simulate

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32

Indacochea, J. E., J. L. Smith, K. R. Litko, and E. J. Karell. "Corrosion performance of ferrous and refractory metals in molten salts under reducing conditions." Journal of Materials Research 14, no. 5 (1999): 1990–95. http://dx.doi.org/10.1557/jmr.1999.0268.

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A lithium reduction technique to condition spent fuel for disposal has been developed at the Argonne National Laboratory. There is a need to ensure adequate vessel longevity through corrosion testing and, if necessary, materials development. Several ferrous alloys and tantalum specimens were submitted to a corrosion test at 725 °C for thirty days in an argon atmosphere, using a lithium-chloride salt saturated with lithium metal and containing small amounts of lithium oxide and lithium nitride. The samples did not show dimensional or weight change, nor could corrosion attack be detected metallo

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33

Malczyk, Piotr, Tilo Zienert, Florian Kerber, et al. "Corrosion-Resistant Steel–MgO Composites as Refractory Materials for Molten Aluminum Alloys." Materials 13, no. 21 (2020): 4737. http://dx.doi.org/10.3390/ma13214737.

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In this study, a novel metal matrix composite based on 60 vol% 316L stainless steel and 40 vol% MgO manufactured by powder metallurgy technology was developed. The corrosion resistance of the developed steel–MgO composite material against molten aluminum alloy AlSi7Mg0.3 was investigated by means of wettability tests and long-term crucible corrosion tests. The wettability tests were carried out using the sessile drop method with the capillary purification technique in a hot-stage microscope (HSM). Static corrosion tests were performed in molten aluminum alloy at 850 °C for 168 h to evaluate th

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34

Peng, Chao, and Wei Bo Yang. "Effect of ZrO₂ Additive on the Properties of MgO-Cr₂O₃ Refractory Used for RH Degasser." Key Engineering Materials 680 (February 2016): 331–34. http://dx.doi.org/10.4028/www.scientific.net/kem.680.331.

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To improve the properties and RH degasser slag corrosion resistance of magnesia-chrome refractory, the effect of the addition of ZrO2 was investigated. The results showed that the presence ZrO2 additive can densify the magnesia-chrome samples due to promotion of grain boundary activities and ultimately direct bond formation, which improved the high temperature mechanical properties and corrosion resistance. The results also indicated that in the RH degasser slag system with a high ratio of calcia to silica, the slag resistance behavior of magnesia-chrome composite added ZrO2 could be described

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35

Ishijima, Y., K. Kakiuchi, T. Furuya, et al. "Corrosion resistance of refractory metals in high-temperature water." Journal of Nuclear Materials 307-311 (December 2002): 1369–74. http://dx.doi.org/10.1016/s0022-3115(02)01066-8.

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36

Um, Hyungsic, Kyuyong Lee, Joo Choi, and Yongsug Chung. "Corrosion Behavior of MgO–C Refractory in Ferromanganese Slags." ISIJ International 52, no. 1 (2012): 62–67. http://dx.doi.org/10.2355/isijinternational.52.62.

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37

Motooka, Takafumi, and Kiyoshi Kiuchi. "Corrosion Fatigue of Refractory Materials in Boiling Nitric Acid." MATERIALS TRANSACTIONS 43, no. 5 (2002): 1220–24. http://dx.doi.org/10.2320/matertrans.43.1220.

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38

Guzmán, A. M., D. I. Martínez, and R. González. "Corrosion–erosion wear of refractory bricks in glass furnaces." Engineering Failure Analysis 46 (November 2014): 188–95. http://dx.doi.org/10.1016/j.engfailanal.2014.09.003.

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39

Bahtli, Tuba, Cemail Aksel, and Taner Kavas. "Corrosion behavior of MgO-MgAl2O4-FeAl2O4 composite refractory materials." Journal of the Australian Ceramic Society 53, no. 1 (2017): 33–40. http://dx.doi.org/10.1007/s41779-016-0006-6.

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40

Besmann, Theodore M. "Thermochemical modeling of refractory corrosion in slagging coal gasifiers." Calphad 32, no. 3 (2008): 466–69. http://dx.doi.org/10.1016/j.calphad.2008.07.004.

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41

Luz, A. P., F. C. Leite, M. A. M. Brito, and V. C. Pandolfelli. "Slag conditioning effects on MgO–C refractory corrosion performance." Ceramics International 39, no. 7 (2013): 7507–15. http://dx.doi.org/10.1016/j.ceramint.2013.03.001.

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42

Pavlovskii, V. K., and Yu S. Sobolev. "Corrosion of refractory materials in molten lead-silicate glasses." Glass and Ceramics 49, no. 8 (1992): 367–69. http://dx.doi.org/10.1007/bf00677863.

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43

Li, Hong, Jin Shu Cheng, and Xin Jiang Long. "Study on Corrosion Mechanism of CAS Glass-Ceramic to Refractories by EPMA." Key Engineering Materials 280-283 (February 2007): 1663–66. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1663.

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CaO-Al2O3-SiO2 (CAS) glass-ceramic is a novel material developed in recent years. It has a number of excellent properties, such as shining appearance, high strength, and good erosion resistance. So its practical prospect is wide. Many glass and ceramic scientists have studied this glass-ceramic, but there have been no publication made regarding corrosion mechanism. In order to choose the most suitable refractory materials for melting furnace for this glass-ceramic system, the corrosion and erosion mechanism must be investigated. The results can then be used to design the furnace and predict th

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44

Matyas, Josef, S. K. Sundaram, B. J. Hicks, Autumn B. Edmondson, and Benjamin M. Arrigoni. "Slag-Refractory Interaction in Slagging Coal Gasifiers." Materials Science Forum 595-598 (September 2008): 397–405. http://dx.doi.org/10.4028/www.scientific.net/msf.595-598.397.

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The combustion chamber of slagging coal gasifiers is lined with refractories to protect the steel shell of the gasifier from elevated temperatures and corrosive attack of the coal slag. Refractories composed primarily of Cr2O3 have been found most resistant to slag corrosion, but they continue to fail performance requirements. Post-mortem analysis of high-chromia refractory bricks collected from commercial gasifiers suggests that slag penetration and subsequent spalling of refractory are the cause of the short service life of gasifier refractories [1]. Laboratory tests were conducted to determ

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Rehman, Abdul, Mohammad Hassan Shirani Bidabadi, Liang Yang, et al. "Optimization of pre-oxidation time for corrosion resistance of cobalt based coating alloy in mixed sulphates." Anti-Corrosion Methods and Materials 68, no. 1 (2021): 29–35. http://dx.doi.org/10.1108/acmm-03-2020-2270.

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Purpose This study aims to optimise the effect of pre-oxidation on hot corrosion behaviour of Tribaloy T-900 at 900 °C in mixed Na2SO4 and K2SO4. Design/methodology/approach Prior to hot corrosion experiment, pre-oxidation treatments were carried in ambient air at 900 °C for 1, 5 and 10 h, respectively. The hot corrosion experiments were performed in a box type furnace at 900 °C. Both surfaces of specimens were brushed with saturated salt solution of 75 wt.% Na2SO4 + 25 wt.% K2SO4. After brushing, the salt-coated specimens were placed in electric stove to ensure drying of salt. After drying, p

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Li, Yong Qi, Han Jie Guo, and Jun Ning Shao. "Research on the Mathematical Models for Refractory Castable Corrosion by Molten Slag." Advanced Materials Research 468-471 (February 2012): 2978–83. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2978.

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In this paper, refractory castables was used for the simulated erosion experiment of RH snorkel in the laboratory, then these data which were got from experiment were analyzed by using spss software, and two mathematical models at slag-gas interface and slag-steel interface of refractory castables were obtained, this models established two relations between slag compositions and erosion degree. Subsequently, the two models were analyzed detailedly, the results indicated two models were consistent with the corrosion of refractory castables . Therefore, the two mathematical models have a certain

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Aksel, Cemail, and Tuba AKSOY. "Microstructural Characterisation and Investigation of the Effects of ZrSiO₄-Y₂O₃ Additions on Corrosion Behaviour of MgO-Spinel Composite Refractories." Advanced Materials Research 445 (January 2012): 536–41. http://dx.doi.org/10.4028/www.scientific.net/amr.445.536.

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Corrosion resistance of MgO-Spinel (M-S) composite refractories containing various amounts of ZrSiO4-Y2O3constituents was investigated. Density and open porosity values were measured and evaluated. Corrosion tests of refractories were carried out statically under standard conditions using cylindrical shaped samples in terms of determining the interaction with cement clinker. Corrosion resistance was determined by measuring the values of penetration and depth of the corroded regions of refractories. The influence of corrosion resistance based on the microstructural changes occurred as a result

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Peng, Hong, Jun Liu, Qinghu Wang, and Yawei Li. "Improvement in Slag Resistance of No-Cement Refractory Castables by Matrix Design." Ceramics 3, no. 1 (2020): 31–39. http://dx.doi.org/10.3390/ceramics3010004.

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The corrosion resistance of spinel containing cement bonded castables has been extensively investigated in the past. However, corrosion of no-cement refractory castables (NCC) has not been widely studied since the use of NCC has been relatively limited up till now. This paper focuses on the slag resistance of NCCs, and the often-used spinel containing low cement castable (LCC) is used as the reference. Three different NCC binders were designed: (i) Al2O3 + MgO (alumina bond), in situ spinel formation; (ii) Al2O3 + SiO2 (microsilica-gel bond), mullite formation; and (iii) Al2O3 + MgO + SiO2 (Mg

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Chen, Song Lin, Lin Yuan, Zhong Qi Feng, Xi Jun Liu, and Jia Lin Sun. "Corrosion Resistance Mechanism of MgO-ZrO₂ Brick in RH Degasser Slag." Advanced Materials Research 415-417 (December 2011): 2048–52. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.2048.

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Slag corrosion resistance behavior of MgO-ZrO2 refractory was investigated in this work. The results indicated that in the non-oriented electric steel slag system with a high ratio of calcia to silica, the slag resistance behavior of MgO-ZrO2 composite could be described as follows: the ZrO2 reacts with CaO forming the calcium zirconate compound which is densification encapsulating periclase lay. However, in the oriented electric steel slag system with a high concentration of silica and the low ratio value of calcia to silica, the slag corrosion resistance behavior of MgO-ZrO2 composite is dif

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Kumar, J. Jagadesh, G. Diwakar, and Vaddi Venkata Satyanarayana. "Impact of High-Velocity Oxy-Fuel ZrO2 Coating on Corrosion Resistance and Fatigue Life of AISI 316L Austenitic Stainless Steel." Advances in Materials Science and Engineering 2019 (July 30, 2019): 1–9. http://dx.doi.org/10.1155/2019/5719694.

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Purpose. The purpose of this research paper is to investigate the corrosion and fatigue life of AISI 316L austenitic stainless steel in the absence and presence of high-velocity oxy-fuel ZrO2 coating. Design/Methodology/Approach. AISI 316L austenitic stainless steel is chosen for the investigation, keeping in mind, its widespread usage in naval and marine applications where the members are exposed to corrosive sea water environment. ZrO2 coating is a popular surface treatment provided to mechanical members to improve their corrosion resistance. Being a refractory material, ZrO2 inhibits the co

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