Laurent Briottet

TL;DR: In this article, the authors investigated the hydrogen embrittlement susceptibility of a high strength steel grade (X80) and showed that hydrogen induces several kinds of damages including decohesion along ferrite/pearlite interfaces and microcracks initiations on the specimens external surface.

TL;DR: In this paper, the changes in mechanical properties of a grade API X80 steel through numerous mechanical tests, i.e., tensile tests, disk pressure test, fracture toughness and fatigue crack growth measurements, performed either in neutral atmosphere or in high pressure of hydrogen gas, are discussed in front of safety considerations for the redaction of standards for the qualification of materials dedicating to hydrogen transport.

TL;DR: In this paper, the influence of hydrogen gas on the total life in terms of crack initiation and crack propagation is analyzed in a quenched and tempered (Q&T) low alloy steel under hydrogen pressure in the range 0.5e35 MPa.

TL;DR: In this article, the impact of the laser powder bed fusion (L-PBF) process and post-fabrication heat treatments on the microstructure of LPBF CuCrZr alloy was analyzed at different scales thanks to scanning electron and transmission electron microscopy.

TL;DR: In this paper, the behavior of forged super duplex stainless steel specimens was evaluated under different gaseous hydrogen pressure levels and microstructural aspects were related to the results obtained.