摘要
A single-crystal hollow turbine blade was taken as the typical part to estimate the interfacial heat-transfer coefficient (IHTC) during investment-casting process. The experimental scheme was followed to measure the temperature distributions during the casting process by the tungsten-rhenium (W-Re) thermocouples. Using the finite-element methodology and the measured temperatures during the casting process, the time-dependent interfacial heat-transfer coefficient was studied by inverse heat-conduction analysis. The empirical formula for the time-dependent interfacial heat-transfer coefficient can be established. The calculation results are in good agreement with the experimental results, and the accuracy of the casting numerical simulation is improved effectively.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 2123-2131 |
| 页数 | 9 |
| 期刊 | Journal of Materials Processing Technology |
| 卷 | 211 |
| 期 | 12 |
| DOI | |
| 出版状态 | 已出版 - 12月 2011 |