Grain Boundary Microstructure Control Using Secondary Lamellar Microstructure, and Its Creep Properties of TiAl Alloy

Ryosuke YAMAGATA

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一般講演

4.Mechanical Properties » Mechanical Properties of Materials and Sturucture

[G] Mechanical Properties of Materials and Structure

Fri. Sep 22, 2023 1:00 PM - 4:00 PM Rm. H (2nd Flr. Education and Research Building, School of Engineering)

座長:萩原　幸司(名古屋工業大学)、趙研(大阪大学)

1:45 PM - 2:00 PM

[226] Grain Boundary Microstructure Control Using Secondary Lamellar Microstructure, and Its Creep Properties of TiAl Alloy

*Ryosuke YAMAGATA¹, Yuro Kino², Hirotoyo Nakashima³, Masao Takeyama³, Takaomi Itoi¹ (1. Chiba Univ., 2. Tokyo Institute of Technology (Present: PROTERIAL, Ltd.), 3. Tokyo Institute of Technology)

Keywords:TiAl基合金、クリープ、粒界組織制御

α₂/γフルラメラ組織を有するTiAl基合金の粒界を二次層状組織にて被覆する組織制御法はクリープ特性向上に寄与することを明らかにした．一方過度な導入は細粒化に起因する加速域におけるクリープ抵抗の低下を招く．

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