PREPARATION OF SINGLE CRYSTAL SUPERALLOYS FOR POST-CASTING HEAT TREATMENT
Assignee
UNITED TECHNOLOGIES CORPORATION
Filed
Dec 27, 1983
Granted
May 9, 1995
Location
SOUTH WINDSOR CT US
Abstract
Unwanted recrystallization during heat treatment of a directionally solidified nickel alloy single crystal casting is prevented by chemical milling the part before heat treatment. Removal of a layer of as little as 0.013-0.050 mm thick, less than two percent of the part thickness, has been found effective.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 14, 1984
Rescinded
Nov 8, 1993
Duration
9 years, 1 month
Inventor
- 1RICHARD W. SALKELD
Record Details
- Patent number
- US 5413648
- Application
- 06565999
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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