[P] P248~P271　構造材料

[P259] Controlling Mechanical Properties of Ti-Based High-Strength Mille-Feuille Materials by Addition of Third Elements

○李 ユウテイ¹、Takuya Yonemura¹, Toko Tokunaga, Koji Hagihara¹ (1. 名古屋工業大学)

キーワード：

粒径分布

This study examines how Ga, Ta, and Zr additions affect Ti-Fe based mille-feuille alloys. Ga- and Ta-added alloys kept lamellar structures and showed higher yield stress at 600 °C. EBSD analysis suggests that Ta addition reduces coarse grains/colonies, suppresses large kink-band formation, and improves high-temperature strength.