TY - UNPB
T1 - The influence of hydrogen on plasticity in pure iron-theory and experiment
AU - Gong, P.
AU - Katzarov, I.H.
AU - Paxton, A.T.
AU - Mark Rainforth, W.
PY - 2019/12/19
Y1 - 2019/12/19
N2 - Tensile stress relaxation is combined with transmission electron microscopy to reveal dramatic changes in dislocation structure and sub structure in pure alpha iron as a result of the effects of dissolved hydrogen. We find that hydrogen charged specimens after plastic deformation display a very characteristic pattern of trailing dipoles and prismatic loops which are absent in uncharged pure metal. We explain these observations by use of a new self consistent kinetic Monte Carlo model, which in fact was initially used to predict the now observed microstructure. The results of this combined theory and experimental study is to shed light on the fundamental mechanism of hydrogen enhanced localised plasticity.
AB - Tensile stress relaxation is combined with transmission electron microscopy to reveal dramatic changes in dislocation structure and sub structure in pure alpha iron as a result of the effects of dissolved hydrogen. We find that hydrogen charged specimens after plastic deformation display a very characteristic pattern of trailing dipoles and prismatic loops which are absent in uncharged pure metal. We explain these observations by use of a new self consistent kinetic Monte Carlo model, which in fact was initially used to predict the now observed microstructure. The results of this combined theory and experimental study is to shed light on the fundamental mechanism of hydrogen enhanced localised plasticity.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85094064136&partnerID=MN8TOARS
UR - https://www.scopus.com/pages/publications/85094064136
U2 - 10.48550/arXiv.1912.09313
DO - 10.48550/arXiv.1912.09313
M3 - Preprint
SP - 1
EP - 24
BT - The influence of hydrogen on plasticity in pure iron-theory and experiment
PB - arXiv
ER -