Corrosion of austenitic and martensitic stainless steels in flowing Pb17Li alloy

✍ Scribed by J. Sannier; M. Broc; T. Flament; A. Terlain

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 462 KB
• Volume: 14
• Category: Article
• ISSN: 0920-3796
• DOI: 10.1016/0920-3796(91)90013-g

✦ Synopsis

If loss of sound metal is taken into account as corrosion criterion, there is a factor of about 4 to 5 between austenitic and ferritic steels. As an example, the loss of sound metal at 450°C is 100 ~tm.yr -1 for 316L steel and 22/tm-yr -! for 1.4914 steel. This diffenmce of behaviour seems to be slightly attenuated when temperature increases, owing to a higher activation energy of martensitic steel. The correspondence in term of temperature is of about 50 o C.

When corrosion criterion is mass transfer, the factor is reduced to about 2 between the two types of steel which corresponds in term of temperature to a difference of about 25 o C between the two steels.