Work

Corrosion of Nickel‐200 and AISI‐1008 Steel in Sodium Polysulfides and Sulfur at 350°C

Year: 1986

Type: article

Abstract: Tests were conducted to determine the corrosion behavior of nickel‐200 and AISI‐1008 steel in sulfur and sodium polysulfides ( , , and ) at 350°C for times between 1 and 25h. Both the corrosion kinetics and the morphology of the corrosion scale formed on these metals are described. The corrosion of both metals is fast in these media, with the corrosion of nickel being up to twice as fast as that of iron. Changing the corrosion medium has little effect on the corrosion of nickel. The kinetics follow a logarithmic rate law in all cases, and the scale is multilayered with a porous inner layer. With the iron, however, the kinetics and the scale composition and morphology are significantly affected by the corrosion medium basicity. On going from sulfur through and to , the corrosion rate increases and the kinetics change from parabolic to almost linear while the scale changes from to a product of which appears as a band of small crystallites in the next to the metal.

Source: Journal of The Electrochemical Society

DOI: 10.1149/1.2108862

Authors: Alan P. Brown, James E. Battles

Institution: Argonne National Laboratory

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: U.S. Department of Energy, Argonne National Laboratory

Award: G1940553382