Sur la comparaison des facies D'attaque electrolytique et thermique D'aciers inoxydables austenitiques a teneur variable En Si

Interatomic potential for studying ageing under irradiation in stainless steels: the FeNiCr model alloy

“…From figure 7 we observe that for Fe10Ni20Cr and compositions for which the single phase fcc solid solution is experimentally stable D Cr > D Ni > D Fe , except for Fe10Ni10Cr where D Cr ≈ D Fe > D Ni . The present observation is in broad agreement with experiments that all claim Cr to be the fast diffuser [42][43][44][45][46][47]. With respect to Ni and Fe different observations are reported: D Fe > D Ni is claimed in [42,45,46,[48][49][50][51][52] while D Ni > D Fe is claimed in [53,54].…”

Determination of the long-term intergranular corrosion rate of stainless steel in concentrated nitric acid

“…This type of degradation could be related to the structure and energy of the grain boundaries, as well as to the segregation of some alloying elements in these areas [1][2][3][4][5][6]. Two states appear to exist during the propagation of the corrosion: the corrosion rate calculated from the weight loss increases with immersion time until a steady state is reached [7][8][9] which coincides with the onset of grain dropping (Fig.…”

Electrochemical method of determining the carbon concentration profile in superficial layers of corrosion‐resistant austenitic steels and possibilities of its application to the evaluation of the mass transfer resistance of austenitic steels in liquid sodium

“…Since current densities of chromium are several times higher than those of Cr 18 Ni 12 at the same potential the observed current densities will also be higher after longer annealing [8]. However, rather long-term annealing will produce significant amounts of precipitated chromium carbide at the grain boundaries; when polarisation curves are then recorded in 1 H H2S04 the grain boundaries will be attacked by dissolution of chromium in the transpassive region and this process will overlap the effect of carbon or mask secondary passivity.…”