Numerical simulation of inclusions in K439B turbine nozzle casting

XIA Mengyuan; WU Wenyun; FANG Qingyuan

doi:10.12299/jsues.24-0193

Volume 40 Issue 1

Mar. 2026

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XIA Mengyuan, WU Wenyun, FANG Qingyuan. Numerical simulation of inclusions in K439B turbine nozzle casting[J]. Journal of Shanghai University of Engineering Science, 2026, 40(1): 62-67. doi: 10.12299/jsues.24-0193

Citation:

XIA Mengyuan, WU Wenyun, FANG Qingyuan. Numerical simulation of inclusions in K439B turbine nozzle casting[J]. Journal of Shanghai University of Engineering Science, 2026, 40(1): 62-67. doi: 10.12299/jsues.24-0193

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Numerical simulation of inclusions in K439B turbine nozzle casting

doi: 10.12299/jsues.24-0193

School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2024-07-01
Available Online: 2026-05-27
Publish Date: 2026-03-01

Abstract

Abstract

The turbine nozzle is an important component of aircraft. During the casting process of the turbine nozzle made of high-temperature alloy K439B, inclusions are prone to be generated, leading to a decrease in its performance. The finite element simulation software ProCAST was used to analyze the influence of pouring temperature and pouring speed on inclusion. The results show that the inclusions in the turbine nozzle castings tend to decrease as pouring temperature increases. With increasing pouring speed, the diameter of inclusions first increases and then decreases, while the number of inclusions decreases. The inclusions were the least when the pouring speed was 176 mm/s. The optimal process parameters were a pouring temperature of 1520 ℃ and a pouring speed of 176 mm/s, under which inclusion defects were minimized. The finding can provide a reference for improving the casting process of the turbine nozzle, reducing inclusions and enhancing the performance of the castings.
- K439B alloy,
- turbine nozzle,
- numerical simulation,
- inclusions,
- ProCAST software

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References(16)

References

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