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Solidification Modeling of Alloy 718 Structural Castings
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yu, Kyung O. Nicholas, John J. Hosamani, Laxmappa G. |
| Copyright Year | 1994 |
| Abstract | Efforts were undertaken jointly between PCC Airfoils and PCC Structurals Division to simulate solidification conditions and predict the occurrence of shrinkage and microporosity defects in Alloy 7 18 structural castings. The approach used finite element thermal analysis validated by experiments. An engine rail was selected as the demonstration part. A finite element thermal model was used to generate data on solidification conditions (i.e., solidification sequence, isochron, temperature gradient (G) and solidification rate (R)). A baseline condition was first established by matching model-predicted shrinkage locations with known inspection results for actual gating and casting conditions. A second model was then built for a casting with a different gating system to predict shrinkage locations prior to inspection. It was found that the shrinkage locations predicted by the second model match reasonably well with casting inspection results. Superalloys 7X3,625,706 and Various Derivatives Edited by E.A. Loria The Minerals, Metals & Materials Society, 1994 |
| Starting Page | 177 |
| Ending Page | 188 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.7449/1994/Superalloys_1994_177_188 |
| Alternate Webpage(s) | https://www.tms.org/superalloys/10.7449/1994/Superalloys_1994_177_188.pdf |
| Alternate Webpage(s) | https://doi.org/10.7449/1994%2FSuperalloys_1994_177_188 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
