Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7894098 | Corrosion Science | 2018 | 14 Pages |
Abstract
The effects of alloying elements in Ni-5at%X binary alloys on intergranular (IG) corrosion and stress corrosion cracking (SCC) have been assessed in 300-360 °C hydrogenated water at the Ni/NiO stability line. Alloys with Cr or Al additions exhibited grain boundary oxidation and IGSCC, while localized degradation was not observed for pure Ni, Ni-Cu or Ni-Fe alloys. Environment-enhanced crack growth was determined by comparing the response in water and N2 gas. Results demonstrate that selective grain boundary oxidation of Cr and Al promoted IGSCC of these Ni alloys in hydrogenated water.
Related Topics
Physical Sciences and Engineering
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Authors
S.M. Bruemmer, M.J. Olszta, M.B. Toloczko, D.K. Schreiber,