Numerical simulation on pouring process of nickel base superalloy induction ingot

Tang Pingmei; Zhou Yang; Jiang Dongbin

doi:10.7513/j.issn.1004-7638.2022.04.020

Volume 43 Issue 4

Sep. 2022

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Tang Pingmei, Zhou Yang, Jiang Dongbin. Numerical simulation on pouring process of nickel base superalloy induction ingot[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 127-133, 141. doi: 10.7513/j.issn.1004-7638.2022.04.020

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Tang Pingmei, Zhou Yang, Jiang Dongbin. Numerical simulation on pouring process of nickel base superalloy induction ingot[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 127-133, 141. doi: 10.7513/j.issn.1004-7638.2022.04.020

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Numerical simulation on pouring process of nickel base superalloy induction ingot

doi: 10.7513/j.issn.1004-7638.2022.04.020

Tang Pingmei^{1, 2
,},
Zhou Yang^{1, 2},
Jiang Dongbin³

1.
Chengdu Insititute of Advanced Metallic Material Technolgy and Industry Co.,Ltd., Chengdu 610303, Sichuan, China
2.
State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114009, Liaoning, China
3.
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2022-04-06
Publish Date: 2022-09-14

Abstract

Abstract

In this paper, the numerical simulation on pouring process of nickel base superalloy induction ingot had been carried out by using ProCAST software. The change characteristics of temperature field and solid fraction during the filling and solidification process of ingot and their influence on ingot shrinkage porosity had been studied. Moreover, the change rule of ingot shrinkage porosity with pouring temperature had been investigated in detail. The results show that the temperature of the upper ingot is lower than that of the lower ingot along the longitudinal direction of ingot during solidification process, and sequential solidification does not occur in the ingot, thus the V-shaped primary shrinkage porosity of the ingot is deep. In the filling stage, the change of pouring temperature has little effect on the maximum flow speed and level fluctuation of alloy. In the solidification stage, lowering pouring temperature can reduce the high-temperature area at the lower part of the ingot and the primary shrinkage depth at the end of the ingot to a certain extent. Nevertheless, changing pouring temperature can not make the ingot achieve sequential solidification in the longitudinal direction, consequently, lowering the pouring temperature can not significantly reduce the primary shrinkage porosity at the end of the ingot. Moreover, the change of pouring temperature has little effect on the small shrinkage porosity in the ingot.
- nickel base superalloy,
- ingot casting,
- numerical simulation,
- pouring temperature,
- shrinkage porosity

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References(21)

References

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