The effect of H upon the stacking-fault energy of this austenitic stainless steel was studied. The stacking-fault energies were deduced from measurements of the radii of curvature of dislocation nodes, as imaged under weak-beam conditions. The results indicated that the presence of 40torr of H gas, in a transmission electron microscope equipped with an environmental cell, caused increases in the node spacing which corresponded to a reduction of about 19% in the stacking-fault energy (table 1).

P.J.Ferreira, I.M.Robertson, H.K.Birnbaum: Materials Science Forum, 1996, 207-209, 93-6

Table 1

Effect of H upon the Stacking Fault Energy of AISI310 Stainless Steel