Abstract
Casting defects are deleterious to the mechanical properties of nickel-based single superalloys, the decrease of casting defects is benefit for improving mechanical properties and reducing the cost. Some important casting defects formed in the directional solidification process are discussed, including porosity, freckles, misorientation and stray grains. Based on the features and formation mechanisms for the defects, the influence of alloy composition, processing parameters and casting structure on the casting defects is analyzed. Meanwhile, the suggestions for reducing casting defects are pointed out.
| Original language | English |
|---|---|
| Pages (from-to) | 93-98 |
| Number of pages | 6 |
| Journal | Cailiao Gongcheng/Journal of Materials Engineering |
| Issue number | 1 |
| State | Published - Jan 2012 |
Keywords
- Casting defect
- Directional solidification
- Nickel-based single superalloy
- Processing parameter