Method of Production and Properties of Blanks of Bodies of Chromium Steel 10Kh9MFB Pipe Fittings for Thermal Power Plants

Skorobogatykh, V. N.; Levkov, L. Ya.; Shchenkova, I. A.; Bazhenov, A. M.; Prudnikov, D. A.; Zadoinyi, V. A.; Starkovskii, G. L.

doi:10.1007/s10749-017-0852-6

Cited by 2 publications

(2 citation statements)

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“…The properties of ESR 15Cr1MoV steel (grade for PRV) and other conventional heatresistant grades (Table 2) for power station pipes produced from as-cast hollow ingots using just after heat treatment and machining also fully met the requirements for forged ones [32][33][34]. A good recent example is the electroslag remelted pipes (Figure 2) from heat-resistant steels, which were allowed to be used as-cast (without deformation after heat treatment and machining) for fossil and nuclear power plants pipelines [34][35][36][37]. The macrostructure shown has a consistent dendrite structure, with no presence of A-type or centerline segregation and no signs of microporosity or shrinkage.…”

Section: Esr For Heavy Wall Pipes Manufacturing Used As-castmentioning

confidence: 97%

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Electroslag Hollow Ingots for Nuclear and Petrochemical Pressure Vessels and Pipes

Medovar

Stovpchenko

Sybir³

et al. 2023

Metals

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The paper presents ground reasoning and results of experiments and modeling of heavy hollow ingot manufacturing using advanced electroslag technology. The requirements for ingots for huge diameter reactor pressure vessels include high density, homogeneity, and minimal segregation, which are very difficult to achieve by traditional casting. In the electroslag remelting process (ESR), hollow ingots form in between two copper water-cooled molds under effective heat removal. This improves the solidification pattern due to the shortening of a solidifying volume thickness more than twice compared with a solid ingot of the same diameter. The shallow liquid metal pool and narrow mushy zone at the ESR hollow ingot solidification assure their high metallurgical quality. Due to the dense and low segregation structure, ESR hollow ingots proved to be used for as-cast pipes and heavy wall billets for further forging. The results of a mathematical simulation within the range of simulated dimensions (the outer diameter up to 2900 mm, wall thickness up to 750 mm) also predict the favorable solidification pattern for thick-wall hollow ingots of big diameters. The analysis made and the modeling results provide a framework for scaling up the sizes of hollow ingots produced by ESR and widening their application for manufacturing heavy wall large diameter shells for nuclear and petrochemical industries. The higher reachable productivity of hollow ingot formation and lower capacity of power supply source than that for solid ingots of the same diameter and weight are also preconditions of their energy saving and cost-effective manufacturing.

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Section: Esr For Heavy Wall Pipes Manufacturing Used As-castmentioning

confidence: 97%

“…So far, produced ESR hollow ingots have a 100-2000 mm diameter, lengths of up to 11 m, and 25 t in weight [32][33][34][35][36][37].…”

Section: Esr For Heavy Wall Pipes Manufacturing Used As-castmentioning

confidence: 99%

Electroslag Hollow Ingots for Nuclear and Petrochemical Pressure Vessels and Pipes

Medovar

Stovpchenko

Sybir³

et al. 2023

Metals

View full text Add to dashboard Cite

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The analysis and estimation of vibration fatigue for pipe fitting in aviation hydraulic system

Zhang

Yuan

Zhang

et al. 2019

Engineering Failure Analysis

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Method of Production and Properties of Blanks of Bodies of Chromium Steel 10Kh9MFB Pipe Fittings for Thermal Power Plants

Cited by 2 publications

References 1 publication

Electroslag Hollow Ingots for Nuclear and Petrochemical Pressure Vessels and Pipes

Electroslag Hollow Ingots for Nuclear and Petrochemical Pressure Vessels and Pipes

The analysis and estimation of vibration fatigue for pipe fitting in aviation hydraulic system

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