Process Modelling of IN718 for Free Forging

Journal Article · Thu May 17 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2740939· OSTI ID:21061786

Yoshida, Hiroaki; Hatta, Takeshi; Hironaka, Tomohisa; Isogawa, Sachihiro ^[1]; Sekiguchi, Hideaki ^[2]

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1. Research and Development Lab., Daido Steel Co., Ltd., 2-30 Daido-cho, Minami-ku, Nagoya (Japan)
2. Shibukawa Plant, Daido Steel Co., Ltd., 500 Ishihara, Shibukawa (Japan)

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 {delta} 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 {delta} 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.

• OSTI ID: 21061786
• Journal Information: AIP Conference Proceedings, Vol. 908, Issue 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740939; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
36 MATERIALS SCIENCE
COMPUTERIZED SIMULATION
FORGING
GRAIN SIZE
INCONEL 718
MATHEMATICAL SOLUTIONS
MICROSTRUCTURE
NUMERICAL ANALYSIS
REFINING
RELIABILITY