[G] Mechanical Properties of Materials and Sturucture

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[37] Effect of Microstructure on Fatigue Crack Growth Properties of TiAl Based Alloy Containing β Phase

*HANADA AKIHIRO¹, YAMAGATA RYOSUKE², NAKASHIMA HIROTOYO², TAKEYAMA MASAO² (1. Tokyo Institute of Technology(Graduate Student), 2. School of Material and Chemical Technology, Tokyo Institute of Technology)

Keywords:

TiAl基合金,疲労き裂進展試験,機械的性質,組織制御

我々は疲労き裂進展特性に及ぼすβ相の影響を調べ，β相が疲労き裂進展特性向上に有効であることを見出した．本研究では意図的にβ相の形態と量を制御可能なTi-Al-Cr三元系合金合金を準備し，その検証を行なった．