Solidification and segregation characteristics of Ni-based superalloy C700R-1 for ultra-supercritical steam turbine rotor

Huang, Zhen; He, Xikou; Chen, Kun; Wang, Xitao

doi:10.1016/j.jallcom.2022.165107

Cited by 11 publications

(1 citation statement)

References 34 publications

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“…Statistical analysis of dendrite segregation of alloy elements was carried out using SEM-EDS to investigate the influence of C content on the extent of alloy element segregation, and the results are presented in Figure 5. Solute segregation within the alloy can be characterized by the microsegregation coefficient, which can be quantitatively described by the following formula [34]:…”

Section: Microstructure and Element Segregation Of Alloys With Differ...mentioning

confidence: 99%

Solidification Segregation Behavior and Homogenization Process of a Difficult-to-Deform Superalloy Used at 850 °C

Tai,

Zhang,

Cui

et al. 2023

Crystals

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Solidification segregation behavior and homogenization heat treatment processes of a difficult-to-deform superalloy for use at 850 °C were studied. Additionally, the effect of carbon content on homogenization, the thermal treatment process, and pore growth behavior within the alloy were discussed. Our results revealed that Al, Ti, and Nb elements are distributed in the interdendritic space, while W and Mo elements are distributed in the dendrite. There is a significant quantity of γ-γ′ eutectic and MC carbide precipitates in the interdendritic space. Notably, for the alloy containing 0.1 wt% C, a homogenization heat treatment at 1200 °C for 48 h can effectively eliminate the segregation and undesirable phases. As carbon content increased, the γ-γ′ eutectic phases diminished, and the homogenization time decreased accordingly. In this context, pores are smaller and more dispersed, which may enhance alloy forging properties.

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Section: Microstructure and Element Segregation Of Alloys With Differ...mentioning

confidence: 99%

Solidification Segregation Behavior and Homogenization Process of a Difficult-to-Deform Superalloy Used at 850 °C

Tai,

Zhang,

Cui

et al. 2023

Crystals

View full text Add to dashboard Cite

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Effect of different cooling rates on the segregation of C700R-1 alloy during solidification

Huang

Chen

et al. 2023

J Mater Sci

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Remelting Model and Cracking Criterion for Vacuum Arc Remelting of Superalloys: Taking IN718 as an Example

Zhang,

Li,

Zhang

et al. 2024

Metall Mater Trans B

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Solidification and segregation characteristics of Ni-based superalloy C700R-1 for ultra-supercritical steam turbine rotor

Cited by 11 publications

References 34 publications

Solidification Segregation Behavior and Homogenization Process of a Difficult-to-Deform Superalloy Used at 850 °C

Solidification Segregation Behavior and Homogenization Process of a Difficult-to-Deform Superalloy Used at 850 °C

Effect of different cooling rates on the segregation of C700R-1 alloy during solidification

Remelting Model and Cracking Criterion for Vacuum Arc Remelting of Superalloys: Taking IN718 as an Example

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