Study on the effects of pouring speed and mold heating temperature on shrinkage cavity of superalloy induction ingot

TANG Pingmei; ZHOU Yang; BAI Jingfei; MEN Zhengxing; GAO Xi; ZHANG Xianguang

doi:10.7513/j.issn.1004-7638.2026.04.017

Volume 47 Issue 4

Aug. 2026

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TANG Pingmei, ZHOU Yang, BAI Jingfei, MEN Zhengxing, GAO Xi, ZHANG Xianguang. Study on the effects of pouring speed and mold heating temperature on shrinkage cavity of superalloy induction ingot[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(4): 143-150. doi: 10.7513/j.issn.1004-7638.2026.04.017

Citation:

TANG Pingmei, ZHOU Yang, BAI Jingfei, MEN Zhengxing, GAO Xi, ZHANG Xianguang. Study on the effects of pouring speed and mold heating temperature on shrinkage cavity of superalloy induction ingot[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(4): 143-150. doi: 10.7513/j.issn.1004-7638.2026.04.017

Citation:

TANG Pingmei, ZHOU Yang, BAI Jingfei, MEN Zhengxing, GAO Xi, ZHANG Xianguang. Study on the effects of pouring speed and mold heating temperature on shrinkage cavity of superalloy induction ingot[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(4): 143-150. doi: 10.7513/j.issn.1004-7638.2026.04.017

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Study on the effects of pouring speed and mold heating temperature on shrinkage cavity of superalloy induction ingot

doi: 10.7513/j.issn.1004-7638.2026.04.017

1.
Chengdu Aviation Vocational and Technical University, Chengdu 610021, Sichuan, China
2.
Chengdu Advanced Metal Materials Industrial Technology Research Institute Co., Ltd., Chengdu 610300, Sichuan, China
3.
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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Received Date: 2026-05-28
Accepted Date: 2026-07-01
Rev Recd Date: 2026-06-25
Publish Date: 2026-08-31

Abstract

Abstract

Large-scale shrinkage cavity defects exist in superalloy induction ingots, which significantly affect the yield of the induction ingots, the operational stability of the subsequent remelting processes and the product quality. This paper analyzes the effects of two typical process parameters, namely pouring speed and mold heating temperature, on the depth of shrinkage cavities in induction ingots through numerical simulation. The results indicate that the depth of shrinkage cavities in induction ingots does not change regularly with increasing pouring speed. Since adjusting the pouring speed fails to alter the longitudinal temperature distribution and solidification sequence of the induction ingot during solidification. It is impossible to significantly reduce the depth of shrinkage cavities through optimization of this process parameter. Using mold heating can reduce the temperature difference of the mold and the induction ingot in the longitudinal direction during solidification, which to some extent improves the trend of longitudinal solidification of the induction ingot towards the opposite direction of sequential solidification. Using mold heating can significantly reduce the depth of shrinkage cavities in induction ingots.
- superalloy,
- induction ingot,
- pouring speed,
- ingot mold temperature,
- shrinkage cavity

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References(24)

References

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