Development of a Microstructure Prediction Model for Aeroengine Metallic Materials
- URATANI Masato, SAITO Minako, NISHII Takashi
Aeroengine parts are produced by carrying out casting, powder metallurgy, and plastic forming techniques such as forging. Forged products usually have little variation in terms of strength so this method is applied when a high degree of reliability is needed. In addition to the product’s dimensions and strength, requirements are also set with regard to the quality of the microstructure if a particularly high degree of reliability is required. Based on these requirements, IHI is developing a new microstructure prediction model that takes into consideration the physical mechanism that occurs during the forming process in order to accurately simulate the microstructure evolution. This paper discusses crystal-plasticity finite element method (CPFEM) simulations, which form part of the new model.