| Ni3Al基合金复杂薄壁件精铸过程数值模拟 |
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| 引用本文： | 张喜娥,骆合力,曹栩,李尚平,李世琼,周业明.Ni3Al基合金复杂薄壁件精铸过程数值模拟[J].铸造,2005,54(10):992-995. |
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| 作者姓名： | 张喜娥 骆合力 曹栩 李尚平 李世琼 周业明 |
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| 作者单位： | 1. 钢铁研究总院高温材料研究所,北京,100081
2. 南车四方机车车辆股份有限公司,山东,青岛,266031 |
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| 摘 要： | Ni3Al基合金复杂薄壁件的精铸成形很困难,容易出现浇不足和热裂等缺陷.文中运用Procast铸造模拟工程软件对薄壁件铸造过程的流场、温度场及应力场等进行模拟,对Ni3Al基合金大尺寸薄壁精铸件的精密铸造工艺进行了优化,采用Ni3Al基合金复杂薄壁件的高模温铸造,从而实现了薄壁件的顺利充型,并提高了薄壁件的质量.
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| 关 键 词： | Ni3Al基合金 薄壁件 精密铸造 数值模拟 |
| 文章编号： | 1001-4977(2005)10-0992-04 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005-07-25 |
Solidification Simulation of Complex Ni3Al Thin Wall Castings |
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| ZHANG Xi-e,LUO He-li,CAO Xu,LI Shang-ping,LI Shi-qiong,ZHOU Ye-ming.Solidification Simulation of Complex Ni3Al Thin Wall Castings[J].Foundry,2005,54(10):992-995. |
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| Authors: | ZHANG Xi-e LUO He-li CAO Xu LI Shang-ping LI Shi-qiong ZHOU Ye-ming |
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| Affiliation: | 1. Central Iron and Steel Research Institute, High Temperature Material Research Institute, Beijing 100081, China; 2. South Sifang Locomotive and Rolling Stock Ltd., Qingdao 266031, Shandong, China |
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| Abstract: | Investment casting of complex thin wall castings of Ni3Al based alloys is very difficult. Misrun and cracks are common defects. Solidification techniques of Ni3Al thin wall parts are optimized by using Procast software in this study, and rationality of casting parameters is analyzed through simulation of temperature fields and fluid fields. In addition, high mold temperature casting is applied to realize successive fillina and improve quality. |
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| Keywords: | Ni3Al based alloys thin wall parts investment casting numerical simulation |
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