Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy
Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy
复制标题
Fe-Cr-Zr铁素体合金金属间相的氧化行为及其对抗氧化性能的贡献
DOI：
10.3390/met12050827
复制
发表时间：
2022-05
期刊：
影响因子：
2.9
通讯作者：
Lijian Rong
中科院分区：
文献类型：
--
作者：
Shenghu Chen;Lijian Rong
针对先进第四代核反应堆的运行环境，研究了弥散分布Fe 2 Zr相的Fe-Cr-W-Zr合金在静止空气和静止氧饱和液态Pb-Bi共晶中的抗氧化性能。在空气中氧化后形成外层Fe 2 O3和内层（Fe，Cr，Zr）2 O3的双层结构，而在液态Pb-Bi共晶中氧化后形成外层磁铁矿层、内层Fe-Cr尖晶石层和内氧化带的三层结构。弥散分布的Fe_2Zr相在空气和液态Pb-Bi共晶中相对于α-Fe表现出延迟氧化的特性，对合金的氧化行为有显著影响。在923 K空气中氧化后，氧化膜中的Fe 2 Zr相阻碍了金属/氧在氧化膜中的扩散，导致氧化膜的不均匀性。在静态氧饱和的液体Pb-Bi共晶在823 K氧化后，在磁铁矿/Fe-Cr尖晶石界面的Fe供应的减少是存在的Fe 2 Zr相附近，这可能会导致在外部磁铁矿层中的空腔的创建与延长的氧化时间。
Oxidation resistance of the ferritic Fe-Cr-W-Zr alloy with dispersed Fe2Zr phase were investigated in stagnant air and in static oxygen-saturated liquid Pb-Bi eutectic separately considering the service environment in the advanced generation IV nuclear reactors. A duplex structure including an outer Fe2O3 layer and an inner (Fe,Cr,Zr)2O3 layer is developed after oxidation in air, while a three-layered structure consisting of outer magnetite layer, inner Fe-Cr spinel layer, and internal oxidation zone is formed after oxidation in liquid Pb-Bi eutectic. The dispersed Fe2Zr phase shows delayed oxidation with respect to the α-Fe in air and in liquid Pb-Bi eutectic, which significantly affects the oxidation behaviors of the alloy. After oxidation in air at 923 K, the incorporated Fe2Zr phase in the scale would obstruct the diffusion of metal/oxygen across the scale, resulting in the nonuniform oxidation behavior. After oxidation in static oxygen-saturated liquid Pb-Bi eutectic at 823 K, a reduction in the Fe supply to the magnetite/Fe-Cr spinel interface is present adjacent to the Fe2Zr phase, which might lead to the creation of cavities in the outer magnetite layer with prolonged oxidation time.
登录
查看更多内容
影响因子：
5
作者：
Y. Guérin;G. Was;S. Zinkle
通讯作者：
Y. Guérin;G. Was;S. Zinkle
影响因子：
8.3
作者：
Martinelli, L.;Balbaud-Celerier, F.;Santarini, G.
通讯作者：
Santarini, G.
影响因子：
2.3
作者：
Chen Shenghu;Rong Lijian
通讯作者：
Rong Lijian
影响因子：
9.4
作者：
D. Amram;L. Klinger;Nimrod Gazit;H. Gluska;E. Rabkin
通讯作者：
D. Amram;L. Klinger;Nimrod Gazit;H. Gluska;E. Rabkin
影响因子：
9.4
作者：
Agamennone, R.;Blum, W.;Chakravartty, J. K.
通讯作者：
Chakravartty, J. K.