Process Modelling of IN718 for Free Forging

Process Modelling of IN718 for Free Forging

Ni based alloy IN718 is important material used for engine shafts, turbine disks of gas turbine engines. The grain refining of the IN718 becomes important because of the improvement of reliability. We have developed newly advanced process to obtain the grain of less than 22.5 mu m (ASTM No.8.0) even...

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Bibliographische Detailangaben
Hauptverfasser: Yoshida, Hiroaki, Hatta, Takeshi, Hironaka, Tomohisa, Isogawa, Sachihiro, Sekiguchi, Hideaki
Format: Tagungsbericht
Sprache:eng
Schlagworte:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPUTERIZED SIMULATION
FORGING
GRAIN SIZE
INCONEL 718
MATERIALS SCIENCE
MATHEMATICAL SOLUTIONS
MICROSTRUCTURE
NUMERICAL ANALYSIS
REFINING
RELIABILITY
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Beschreibung
Zusammenfassung:Ni based alloy IN718 is important material used for engine shafts, turbine disks of gas turbine engines. The grain refining of the IN718 becomes important because of the improvement of reliability. We have developed newly advanced process to obtain the grain of less than 22.5 mu m (ASTM No.8.0) even after solution treatment. Furthermore we have developed the microstructural prediction system of IN718 for the process modelling. In this paper, the advanced process and it's process modelling in the turbine disk forging were reported. As the result, we could obtain successful fine microstructure less than 22.5 mu m after solution treatment in turbine disk.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2740939