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 FeFe_2-x-_y-zCr_xAl_yMo_zO₄. The corrosion mechanism of FeCrAl alloys in high temperature water is discussed.

研究了模型FeCrAl合金以及市售Zircaloy-4作为参考材料在360°C硼酸化和锂化水中的均匀腐蚀行为。结果表明，FeCrAl合金比Zircaloy-4具有更好的耐腐蚀性。发现在FeCrAl合金上形成的氧化膜由外Fe ₃ O ₄层，由致密尖晶石层和多孔尖晶石层组成的内层，以及含有富Al-Cr的氧化物和富Fe°基体的过渡层组成。内层的尖晶石氧化物为FeFe _{2- x} - _{y -z} Cr _x Al _y Mo _z O ₄。探讨了FeCrAl合金在高温水中的腐蚀机理。