Abstract
Single crystal superalloys of AM3 with different carbon levels were prepared at withdraw rate of 50 μm/s. The effect of carbon addition on the carbide morphology was investigated. It was found that there were four types of MC-type carbides, acicular, nodular, blocky, and Chinese script-type in the crystals. With an increase in carbon level, the volume fraction of carbide increased significantly while the volume fraction of eutectic decreased significantly. Furthermore, the size of carbide in high level carbon alloy became much larger.
| Original language | English |
|---|---|
| Pages (from-to) | 339-345 |
| Number of pages | 7 |
| Journal | Transactions of Nonferrous Metals Society of China (English Edition) |
| Volume | 24 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2014 |
Keywords
- carbide morphologies
- carbon levels
- directional solidification
- single crystal superalloy
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