B-4 バーチャルジェットエンジンの要素としてのフェーズフィールドシミュレーション(材料・損傷I,一般講演)

概要

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Virtual Jet Engine (VJE) has been developed by NIMS and other collaborative companies to evaluate the rupture lifetime of high-temperature gas turbine blades in the virtual aero engine, thermal efficiency of gas turbines, CO_2 emission and so on. VJE consists of materials simulation and system simulation. In the materials simulation, the phase-field simulation was conducted as a component to estimate the microstructure temporal evolution of Ni-base superalloys, which is the material for high-temperature gas turbine blades. The Ni-base superalloy is composed of the gamma matrix and gamma prime precipitates. The dispersion and morphology of gamma prime precipitates affect the creep strength of turbine blades. Therefore, it is important to have knowledge about microstructure temporal evolution. In this paper, the phase-field simulation on microstructure temporal evolution of a Ni-base superalloy was described.
公益社団法人日本ガスタービン学会の論文
2006-10-01