The effect of solution heat treatment on a single-crystal Ni-based superalloy

The effect of solution heat treatment on a single-crystal Ni-based superalloy

The modified heat treatment proved to be insufficient to produce an acceptable homogeneous microstructure in CMSX-4. A high degree of retained segregation persists after the PWA 1480 heat treatment of CMSX-4. Upon exposure to 1,000deg C for 1,000 hours, the modified samples resembled the as-cast mic...

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Veröffentlicht in:JOM (1989) 2003-03, Vol.55 (3), p.35-40
Hauptverfasser: Wilson, B C, Hickman, J A, Fuchs, G E
Format: Artikel
Sprache:eng
Schlagworte:
Aerospace industry
Aging
Alloys
Aluminum
Gas turbine engines
Heat treating
Microstructure
Nickel
R&D
Research & development
Scanning electron microscopy
Temperature
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Zusammenfassung:The modified heat treatment proved to be insufficient to produce an acceptable homogeneous microstructure in CMSX-4. A high degree of retained segregation persists after the PWA 1480 heat treatment of CMSX-4. Upon exposure to 1,000deg C for 1,000 hours, the modified samples resembled the as-cast microstructure more than the microstructure produced by the standard solution heat treatment. Creep testing produced similar results.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-003-0158-z