Heat treatment of single crystals
US4583608A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1983 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Jun 6, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/52
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Concepts relating to the heat treatment of single crystal superalloy articles are disclosed. A first concept is the use of a heat treatment sequence which includes incipient melting of the article being heat treated followed by one or more steps which essentially heal the incipient melting damage. A second concept relates to the treatment of previously heat treated single crystal articles which have incipient melting. Methods are disclosed for healing this damage and for recovering the mechanical properties of such articles. A third concept disclosed is a particular cycle which permits effective heat treatment of a specific single crystal alloy composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.