Uniform corrosion behavior of FeCrAl alloys in borated and lithiated high temperature water

• 作者: Fangqiang Ning Xiang Wang Ying Yang Jibo Tan Ziyu Zhang Dan Jia Xinqiang Wu En-Hou Han
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2021,（11）
• 页码范围: 136-144
• 页数: 9页
• 语种: 英文

摘要

The uniform corrosion behavior of model FeCrAl alloys as well as commercial Zircaloy-4 as reference material were investigated in 360℃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.