We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Atomic-Scale Insights into Flow-Accelerated Corrosion of Carbon Steel.
- Authors
Hur, Do-Haeng; Han, Jeoh; Lee, Young-Kook
- Abstract
The role of flow velocity on the formation and dissolution of oxides on SA106Gr.B carbon steel was investigated at both microscopic and atomic scales. In static water, a compact oxide layer with highly faceted magnetite particles was formed. Atomic-scale transmission electron microscopy images of such a layer revealed highly ordered and parallel lattice fringes, indicating that the oxide had very high crystallinity and minimal lattice defects. In contrast, turbulent water prompted the creation of a porous oxide layer consisting of amorphous magnetite particles. Here, numerous mismatched lattice fringes were observed, indicating a prevalence of point defects within the oxide structure. These differences in oxide properties are attributed to hydrodynamic shear stress induced by turbulent flow. These findings provide atomic-level insights into how carbon steel corrosion accelerates in fast-flowing water.
- Subjects
CARBON steel corrosion; CARBON steel; MAGNETITE; CRYSTAL defects; POINT defects; SHEARING force; TRANSMISSION electron microscopy
- Publication
Metals (2075-4701), 2024, Vol 14, Issue 4, p445
- ISSN
2075-4701
- Publication type
Article
- DOI
10.3390/met14040445