Hydrogen Mobility and Its Interaction with Dislocations in Nickel-Based Inconel 718 Alloy
S. M. Teus
G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03680 Kyiv-142, Ukraine
Received: 25.04.2017. Download: PDF
The hydrogen effects in the nickel-based alloy Inconel 718 are studied using the mechanical spectroscopy and mechanical tests. The enthalpies of hydrogen-atoms’ migration and hydrogen–dislocations binding as well as the condensation temperature for the hydrogen clouds at the dislocations are determined. It is concluded that interaction of hydrogen atoms with dislocations is responsible for hydrogen embrittlement.
Key words: nickel-based alloy, hydrogen migration, hydrogen embrittlement, dislocations, mechanical spectroscopy.
PACS: 61.72.Hh, 61.72.S-, 61.72.Yx, 62.20.M-, 62.25.-g, 62.40.+i, 66.30.jp, 68.35.Dv
Citation: S. M. Teus, Hydrogen Mobility and Its Interaction with Dislocations in Nickel-Based Inconel 718 Alloy, Metallofiz. Noveishie Tekhnol., 39, No. 5: 593—606 (2017)