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.
| Original language | English |
|---|---|
| Pages (from-to) | 223-226 |
| Number of pages | 4 |
| Journal | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| Volume | 32 |
| Issue number | 3 |
| State | Published - Mar 2012 |
| Externally published | Yes |
Keywords
- Filling
- Investment casting
- Low super-heating
- Solidification
- Superalloy K4202