[G] Fundamentals of Mechanical Properties

3:05 PM - 3:20 PM JST(6:05 AM - 6:20 AM UTC)

[181] Effect of hydrogen on the plastic deformation in Fe-8%Al alloys

○Akira Muramoto¹, Masaki Tanaka¹, Shigeto Yamasaki¹, Tatsuya Morikawa¹ (1. Kyushu Univ)

Keywords:

hydrogen embrittlement,mechanical properties

To clarify hydrogen embrittlement, nanoindentation tests were conducted on hydrogen-charged Fe–8%Al alloy. At 5% pre-strain, flow stress decreased on the (111) and (100) planes, especially the (111) plane, suggesting that hydrogen primarily affects interactions between pre-existing dislocations.