Microstructure Development in Nickel Base Superalloys during Weld Thermal Cycle
Conference
·
OSTI ID:755642
- ORNL
Welding plays an important role in the economical reuse and reclamation of used and failed nickel base superalloy blades. Previous research on microstructure development during laser beam welding of a single crystal CMSX4 alloy [Ref. l] showed non-equilibrium y/y{prime} microstructure development. In addition, the y{prime} precipitates were found to be irregular in shape and atom probe field ion microscopy illustrated the presence of diffusional concentration profile within the y phase in the as welded condition. To understand the above microstructure characteristics, y{prime} precipitation from y phase was investigated during continuous cooling from solutionizing temperature.
- Research Organization:
- Oak Ridge National Lab.,Lab., TN (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 755642
- Report Number(s):
- ORNL/CP-104048
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization and Modeling of Microstructure Development in Nickel-base Superalloy Welds
Temperature dependence of the structural order in the {gamma}{prime} phase of nickel base superalloy
Weldability and microstructure development in nickel-base superalloys
Conference
·
Sun Oct 31 23:00:00 EST 1999
·
OSTI ID:14979
Temperature dependence of the structural order in the {gamma}{prime} phase of nickel base superalloy
Journal Article
·
Thu Mar 18 23:00:00 EST 1999
· Scripta Materialia
·
OSTI ID:352450
Weldability and microstructure development in nickel-base superalloys
Conference
·
Fri Oct 31 23:00:00 EST 1997
·
OSTI ID:554146