| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7894708 | Corrosion Science | 2016 | 11 Pages |
Abstract
The effects of dissolved-hydrogen concentration on the formation of oxide films on Alloy 182 were investigated, along with the crack-initiation time. Results from both in-situ Raman analyses and ex-situ electron microscopy analyses indicated that NiO formed at lower dissolved-hydrogen concentrations as the NiO Raman peak decreased, whereas Cr2O3 peak and spinel oxide peaks appeared as the dissolved-hydrogen concentration increased. Crack-initiation testing showed that the crack-initiation time decreased as the dissolved-hydrogen concentration increased. The stable and thick NiO could act as a barrier to ion diffusion, and may increase the crack-initiation time of nickel-based alloys.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Taeho Kim, Kyoung Joon Choi, Seung Chang Yoo, Ji Hyun Kim,