4:20 PM - 4:40 PM [J18] Microstructures and mechanical properties of dissimilar linear friction welded Ti6246/Ti64 joint *Natsumi Kinouchi1, Yasuhiro Aoki2, Kohsaku Ushioda3, Takahiko Shinohara4, Hidetoshi Fujii5 (1. Osaka Univ., 2. Osaka Univ., 3. Osaka Univ., 4. IHI, 5. Osaka Univ.)