Method for rapid removal of cores made of .beta.Al.sub.2 O.sub.3 from directionally solidified eutectic and superalloy and superalloy materials
US4141781A · kind A · utility
41Cited by
6References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 1977 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Oct 6, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D29/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Caustic solutions are employed in an autoclave process to rapidly remove cores made of .beta.-Al.sub.2 O.sub.3 from directionally solidified eutectic alloy and superalloy materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.