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This paper describes the formation of a ternary oxide coating on 316L stainless steel from the reaction of Pb-17Li with the pre-oxidised surface of steel specimens. The pre-oxidised surfaces were prepared by heating 316L stainless steel specimens to 800 C in a controlled H(2)/H(2)O atmosphere (ratio 1000:1). The oxide layer before reaction with the Pb-17Li was characterised as Mn(1.5)Cr(1.5)O(4). Analysis after reaction with Pb-17Li indicated a LiMn(2)O(4) structure with some of the manganese sites occupied by chromium. 316L specimens prepared with different oxide layer thicknesses, along with uncoated specimens, were corroded in the isothermal hot legs of two Pb-17Li filled thermal convection loops. Post-test analysis of the specimens indicated that the oxide coated specimens had, on average, a thinner ferritic corrosion layer than the uncoated specimens. The coated specimens also showed areas with no ferritic corrosion layer.

Additional information

Authors: SAMPLE T, JRC Ispra (IT);COEN V, JRC Ispra (IT);KOLBE H, JRC Ispra (IT);ORECCHIA L, JRC Ispra (IT)
Bibliographic Reference: Paper presented: ICFRM-5 Conference, Clearwater, Florida (US), Nov. 17-22, 1991
Availability: Available from (1) as Paper EN 36516
Record Number: 199210079 / Last updated on: 1994-12-02
Original language: en
Available languages: en