2019 Fall Annual(165th) Meeting

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General Session

8.Structural Materials » Heat Resistant Materials

[G] Heat Resistant Materials(2)

Fri. Sep 13, 2019 9:30 AM - 2:15 PM K (D32 at 3rd Flr. Building D for General Education)

座長:関戸 信彰(東北大学大学院工学研究科)、及川 勝成(東北大学)、川岸 京子(国立研究開発法人物質・材料研究機構)

11:25 AM - 11:40 AM

[281] Grain-size-dependent KJMA model and the precipitation of the intergranular δ-Ni3Nb phase in superalloy 718

*RUAN JingJing1, Ueshima Nobufumi1, Oikawa Katsunari1 (1. 東北大工)

Keywords:Superalloy 718、KJMA model、δ-Ni3Nb

Uniform microstructure in turbine disk is realized by hot-forging process where δ-Ni3Nb phase is necessary. We proposed a grain-size-dependent KJMA model for describing growth behaviors of δ-Ni3Nb.

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