Seminar by Prof. Michael J. Demkowicz from Texas A&M University, entitled “New experiments to resolve the origin of hydrogen embrittlement in nickel and its alloys” – on Wednesday, April 29th, 2026, at 12:00 noon, in the Auditorium.
Paulo Silva
Abstract: Is it HELP or HEDE? This seminar discusses hydrogen embrittlement in Ni and Ni-based alloys. Two recent experiments suggest that the mechanism is not localized plasticity (HELP), but rather a decohesion-type mechanism (HEDE) linked to metastable nickel hydrides. Evidence from in situ deformation and neutron diffraction supports the role of grain boundary hydrides in […]