Etude de la corrosion de deux aciers ferritiques par le plomb liquide circulant dans un thermosiphon; recherche d'un modele

Critical questions in materials science and engineering for successful development of fusion power

“…In general, for the principal elements of steels, dissolution and mass transfer is greater in lead than in lithium [56]. While high levels of oxygen in the lead-lithium can inhibit dissolution (at least initially) by formation of protective oxide surface layers [56], lithium is highly reducing such that most oxides are unstable in contact with it. This not only precludes the use of oxide layers for corrosion protection, but makes it very difficult to develop stable electrically insulating layers on alloys to reduce the magnetohydrodynamic (MHD) force exerted by lithium flowing through a magnetic field [57,58].…”

“…Corrosion and mass transfer in lead has been studied in support of reactor coolant technologies [52][53][54][55]. In general, for the principal elements of steels, dissolution and mass transfer is greater in lead than in lithium [56]. While high levels of oxygen in the lead-lithium can inhibit dissolution (at least initially) by formation of protective oxide surface layers [56], lithium is highly reducing such that most oxides are unstable in contact with it.…”

Corrosion/precipitation in non-isothermal and multi-modular LBE loop systems

“…Experimental results of corrosion tests performed in a non-isothermal simple lead loop are available [16]. The authors found that the corrosion depth for 10 CD 9-10 steel is between 75 and 110 lm after 3000 h and for Z 10 CD Nb V 92 steel is between 25 and 40 lm after 2800 h. In our previous paper [17], we calculated the corrosion rate at the test section of the liquid lead loop using the corrosion model for simple loop.…”

“…The improved model still can only provide the mean corrosion rate in the hot region. Sannier and Santarini [16] developed a corrosion model that could predict the corrosion and deposition zones. Employing the model, the authors obtained good results consistent with the experimental results for a natural convection lead loop, indicating that the model has reasonable performance.…”

Influence of the Pb–Bi hydrodynamics on the corrosion of T91 martensitic steel and pure iron

“…It is sure that this equation considers only local hydraulic effects and that the non-isothermal characteristic of the loop is not taken into account as it is in other publications [12,13]. However, the CICLAD loop, apart from the corrosion specimens, is entirely constituted of aluminized 316L.…”