Corrosion investigations of Al–Fe-coated steels, high Cr steels, refractory metals and ceramics in lead alloys at 700°C

Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K

“…Furthermore, results obtained for high chromium steels subjected to corrosion tests in flowing LBE and flowing lead at two temperatures, i.e. 823 and 973 K, have been reported by Rivai and Takahashi . Specimens tested in flowing LBE at 823 K and C O ∼10 −7 ÷ 10 −6 wt% O exhibited good corrosion resistance with the formation of multiple oxide layers, while penetration of liquid metal into the samples tested at 973 K in LBE and lead was found.…”

“…The latter findings together with the results obtained in the present work, suggest that at the same temperature, the long time testing in flowing lead of ODS steel samples with similar compositions would lead to a strong degradation even for the high Cr steels, despite the fact that lead is chemically less aggressive than LBE. However, Rivai and Takahashi suggested a possible solution. Those authors reported the results observed on the samples of the same high Cr steel uncoated and coated with Al‐Fe layer and subsequently processed under the same operating conditions.…”

Corrosion Resistance of Fe-Al-Alloy-Coated Ferritic/Martensitic Steel under Bending Stress in High-Temperature Lead-Bismuth Eutectic

“…Therefore, the coating layer is effective for protection from the heavy LBE corrosion. If the coating layer cracks, LBE can come into (a) Case of loading (b) Case of no loading 8,9) Fig. 10 Oxidation mechanism of uncoated HCM12A in LBE under loading condition in comparison with that under no-loading condition 8,9) the cracks and contact the base metal and the precoating layer.…”

“…If the coating layer cracks, LBE can come into (a) Case of loading (b) Case of no loading 8,9) Fig. 10 Oxidation mechanism of uncoated HCM12A in LBE under loading condition in comparison with that under no-loading condition 8,9) the cracks and contact the base metal and the precoating layer. The precoating layer is the weakest to the LBE corrosion attack of three layers because it was produced with only the type 304 stainless steel target containing Ni with the highest solubility in LBE.…”

Preliminary study on nano- and micro-composite sol–gel based alumina coatings on structural components of lead–bismuth eutectic cooled fast breeder reactors

“…Therefore, efforts worldwide have, focused on development of alumina coatings and aluminizing surface treatments to protect the substrates from LBE corrosion [10,13,[16][17][18][19][20][21][22][23][24][25][26]. It was found that for steels that contain Al in a surface layer which protects the steels by formation of a thin alumina scale, these scales are stable and protective under static and dynamic conditions for over thousands of hours at temperatures up to 650°C when the surface treatment procedures are optimized.…”