Temperature field analysis and its application in hot continuous rolling of Inconel 718 superalloy

Sui, Fengli; Chen, Liqing; Li, Xianghua; Wang, Lintao; Li, Wei

doi:10.1016/s1006-7191(08)60074-5

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…The equations obtained (12)(13)(14) are applicable in the temperature range 700-1100 ºС, coiled metal cooling time on the facility being 30sec to 1000sec, for carbon and microalloyed steels. To verify the results of calculations in other ranges, additional research is required.…”

Section: Results and Applicationmentioning

confidence: 99%

“…The development of such a tool, taking into account the features of the equipment of the 1680 and the 1700 rolling mills, will allow to evaluate their technical capabilities and expand the assortment, including those produced using the Thermo-Mechanical Control Process (ТМСР) technology. The simulation of the hot deformation temperature conditions has been extensively studied by the authors of [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The proposed solutions are aimed both at specific sets of rolling equipment, and laboratory samples of the mills.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improvement of the Method for Calculating the Metal Temperature Loss on a Coilbox Unit at The Rolling on Hot Strip Mills

Kukhar¹,

Kurpe²,

Klimov³

et al. 2018

IJET

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The paper improves the calculation methodology of metal temperature loss during hot rolling process at continuous mills. The proposed methodology can be implemented at hot strip mills with various in-line equipment arrangements within the temperature ranges appropriate for processes simulation of hot rolling, normalized rolling and Thermo-Mechanical Control Process of carbon and microalloyed steels. It provides engineering analysis of unaccounted temperature losses of feed by means of radiation and convection, which, in the first time, through the time factor, additionally accounts for strip motion speed factors, roller table length and feed length, and also length of rolls contact arc with metal. The accountability of the above mentioned factors in the various compositions depending on the rolling method increases the engineering simulation accuracy, ensures the versatility of the elaborated method with respect to different types of mills and makes the scientific novelty of the study. The equations were developed to calculate the metal temperature loss while coiling at the CoilBox unit. The equations accounts for the influence on the temperature of strip length, coiling and uncoiling speed, strip thickness, inside radius of the reeling coil, the time the feed rests being coiled. The improved model was verified based on actual data.

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Section: Results and Applicationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of the Method for Calculating the Metal Temperature Loss on a Coilbox Unit at The Rolling on Hot Strip Mills

Kukhar¹,

Kurpe²,

Klimov³

et al. 2018

IJET

View full text Add to dashboard Cite

show abstract

“…Inconel 718 is a high strength superalloy with excellent high temperature resistance, contributing to reliable workability in the temperature environment of 23 K-973 K, thus widely used in blades of engines and gas turbines [1][2][3]. This alloy is a nickel-based precipitation hardening wrought superalloy, which composed of solid solution γ matrix and strengthening phase (γ′-Ni3(Al, Ti), γ"-Ni3Nb).…”

Section: Introductionmentioning

confidence: 99%

Mechanism of gradient strengthening layer formation based on microstructure and microhardness of Inconel 718 grinding surface

Dong

Zhang

et al. 2022

Int J Adv Manuf Technol

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Gradient strengthening layer will emerge on the grinding surface of Inconel 718 due to the difference of microstructure. The surface microstructure and microhardness are not independent of each other, and the microhardness is the embodiment of the microstructure evolution in the strength aspect. In this paper, the microstructure observation, microhardness experiments and strengthening theory were combined to analyze. The experimental results show that the grinding surface consists of grain refinement layer and high-density dislocation layer. The grain refinement layer is constituted of equiaxed nano-grains and elongated grains, in which grain boundary strengthening occurred leading to an increase in microhardness. Dislocation strengthening occurred in the high-density dislocation layer, in which the increment of dislocation density is approximately 3.54 × 10 9 mm -2 compared with inner matrix. Microhardness of high-density dislocation region reaches the maximum (438.6 ± 11.1 HV0.01) because of the dislocation strengthening. The variation of microhardness is discussed from two strengthening mechanisms of grain boundary strengthening and dislocation strengthening, and the strengthening mechanism in the different regions of grinding surface is revealed. The calculated microhardness increments through these mechanisms in the refined-grain region and the high-density dislocation region are basically consistent with the measured values.

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Deformation Stability of GH4033 Superalloy in the Hot Continuous Rolling Process Based on Dynamic Material Model and Finite Element Model

Wang

Sui

et al. 2022

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Temperature field analysis and its application in hot continuous rolling of Inconel 718 superalloy

Cited by 7 publications

References 9 publications

Improvement of the Method for Calculating the Metal Temperature Loss on a Coilbox Unit at The Rolling on Hot Strip Mills

Improvement of the Method for Calculating the Metal Temperature Loss on a Coilbox Unit at The Rolling on Hot Strip Mills

Mechanism of gradient strengthening layer formation based on microstructure and microhardness of Inconel 718 grinding surface

Deformation Stability of GH4033 Superalloy in the Hot Continuous Rolling Process Based on Dynamic Material Model and Finite Element Model

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