Uniform corrosion behavior of FeCrAl alloys in borated and lithiated high temperature water
- Resource Type
- Authors
- Ziyu Zhang; Wang Xiang; Fangqiang Ning; Ying Yang; Dan Jia; Jibo Tan; En-Hou Han; Xinqiang Wu
- Source
- Journal of Materials Science & Technology. 70:136-144
- Subject
- Materials science
Polymers and Plastics
Oxide
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
Corrosion
chemistry.chemical_compound
Transition layer
Materials Chemistry
Porosity
Corrosion behavior
Mechanical Engineering
High-temperature corrosion
Metallurgy
Spinel
Metals and Alloys
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Mechanics of Materials
Ceramics and Composites
engineering
0210 nano-technology
Layer (electronics)
- Language
- ISSN
- 1005-0302
The uniform corrosion behavior of model FeCrAl alloys as well as commercial Zircaloy-4 as reference material were investigated in 360 °C borated and lithiated water. The results reveal that FeCrAl alloys exhibited better corrosion resistance than Zircaloy-4. It is found that the oxide films formed on the FeCrAl alloys are composed of outer Fe3O4 layer, inner layer consisting of compact spinel layer and porous spinel layer, and transition layer containing Al-Cr-rich oxides and matrix enriched with Fe°. The spinel oxides in the inner layer are FeFe2-x-y-zCrxAlyMozO4. The corrosion mechanism of FeCrAl alloys in high temperature water is discussed.