| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893246 | Corrosion Science | 2018 | 32 Pages |
Abstract
We report on the effects of B additions to Alloy 617 on its high-temperature oxidation behavior and on the spallation of oxide scales. Alloy 617 and a B-added derivative (Alloy 617B) were oxidized at 1050â¯Â°C in air and comparatively studied. Cr2O3 scales formed on both alloys with a spinel phase and a Ti-rich oxide on top. While both alloys showed similar scale growth kinetics, Alloy 617B showed substantially enhanced resistance to oxide scale spallation. B segregation at Cr2O3 grain boundaries, detected by atom probe tomography, was found to be the reason for the enhanced spallation resistance of Alloy 617B.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hyeonuk Jeong, Se-Ho Kim, Won Seok Choi, Pyuck-Pa Choi,