38 citations · 119 across the 7 of their papers we have counts for
7 papers
Protection of metal interfaces against hydrogen-assisted cracking
Guillaume Hachet, Shaolou Wei, Ali Tehranchi +8
Enabling a hydrogen economy requires the development of materials resistant to hydrogen embrittlement (HE). More than 100 years of research have led to several mechanisms and model…
Segregation at prior austenite grain boundaries: the competition between boron and hydrogen
Guillaume Hachet, Ali Tehranchi, Hao Shi +8
The interaction between boron and hydrogen at grain boundaries has been investigated experimentally and numerically in boron-doped and boron-free martensitic steels using thermal d…
Towards establishing best practice in the analysis of hydrogen and deuterium by atom probe tomography
Baptiste Gault, Aparna Saksena, Xavier Sauvage +42
As hydrogen is touted as a key player in the decarbonization of modern society, it is critical to enable quantitative H analysis at high spatial resolution, if possible at the atom…
Hydrogen delaying the formation of Guinier-Preston zones in aluminium alloys
Guillaume Hachet, Xavier Sauvage
The consequences of hydrogen on the formation and growth of GP zones during natural ageing in an Al-5Cu alloy is investigated experimentally down to the atomic scale and numericall…
Influence of hydrogen vacancy interactions on natural and artificial ageing of an AlMgSi alloy
Guillaume Hachet, X Sauvage
The influence of hydrogen on the structural evolutions of an Al-Mg-Si alloy during natural and artificial ageing was investigated experimentally. The aim of the study was a better…
Mobility of screw dislocation in BCC tungsten at high temperature in presence of carbon
Guillaume Hachet, Daniel Caillard, Lisa Ventelon +1
The interplay of screw dislocations with carbon atoms is investigated in tungsten at high temperature using in situ straining experiments in a transmission electron microscope (TEM…
Screw dislocation-carbon interaction in BCC tungsten: an ab initio study
Guillaume Hachet, Lisa Ventelon, François Willaime +1
The interaction between carbon and screw dislocations in tungsten is investigated using ab initio calculations. The presence of carbon atoms in the vicinity of the dislocation indu…