高温合金K4202热控法细晶铸造过程模拟

王鹏飞; 胡锐; 钟宏; 李金山; 赵京晨

doi:10.15980/j.tzzz.2012.03.001

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高温合金K4202热控法细晶铸造过程模拟
Simulation of Fine Grain Casting Process of Superalloy K4202 by Thermal Control Method
2012年32卷第3期页码：223-226
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.03.001

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[1]王鹏飞,胡锐,钟宏,李金山,赵京晨.高温合金K4202热控法细晶铸造过程模拟[J].特种铸造及有色合金,2012,32(03):223-226.

Wang Pengfei1, Hu Rui1, Zhong Hong1, et al. Simulation of Fine Grain Casting Process of Superalloy K4202 by Thermal Control Method[J]. Special Casting & Nonferrous Alloys, 2012,32(3):223-226.
[1]王鹏飞,胡锐,钟宏,李金山,赵京晨.高温合金K4202热控法细晶铸造过程模拟[J].特种铸造及有色合金,2012,32(03):223-226. DOI： 10.15980/j.tzzz.2012.03.001.

Wang Pengfei1, Hu Rui1, Zhong Hong1, et al. Simulation of Fine Grain Casting Process of Superalloy K4202 by Thermal Control Method[J]. Special Casting & Nonferrous Alloys, 2012,32(3):223-226. DOI： 10.15980/j.tzzz.2012.03.001.

摘要

采用有限元软件模拟了高温合金K4202复杂薄壁件在低过热度浇注条件下的流场、温度场和凝固组织。结果表明

K4202高温合金复杂薄壁件在低过热度浇注时可以获得充型完整的铸件;高温合金K4202复杂薄壁铸件的厚大部位和变截面部分易出现缩松缺陷;当高温合金在低过热度浇注时

铸件整体获得了等轴晶均匀分布的细晶组织

晶粒度达ASTM2-3。

Abstract

The flow field

temperature field and microstructure of complex thin-walled superalloy K4202 castings were simulated with the help of the finite element software.The results show that

with a well established filling system

the thin-walled castings can be well filled in the condition of low super-heating.According to the temperature field

the shrinkage porosity easily occurs in the thick wall location or the location with variable cross-sections.With the low super-heating pouring

the uniform structure with the grain size ASTM2-3 can be observed in the whole castings.

关键词

K4202合金低过热度熔模铸造充型性凝固

Keywords

Superalloy K4202Low Super-HeatingInvestment CastingFillingSolidification

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