A compact and adherent CoCu spinel coating on ferritic stainless steel was developed by electroplating a CoCu alloy layer followed by oxidation. The CoCu alloy was oxidized into a three-layer structure consisted of a thinner CuO outer layer, a middle thicker Cu_0.92Co_2.08O₄ layer and an inner Co₃O₄ layer after an oxidation treatment of 2 h at 800 °C in air. The three-layer oxide structure was transformed into a double-layer scale with a (Co,Cr,Cu,Mn,Fe)₃O₄ spinel outer layer and an inner Cr-rich oxide layer after an oxidation of 500 h at 800 °C in air. The CuCo coating enhanced the oxidation resistance of the alloy and served as a diffusion barrier against the outward migration of Cr elements. Meanwhile, the area specific resistance (ASR) of the scale for the CuCo coated alloy was significantly lower than that for the bare sample.

通过电镀Co Cu合金层，然后进行氧化，可以在铁素体不锈钢上形成致密且粘附的Co Cu尖晶石涂层。在800°C的温度下进行2 h氧化处理后，将Co Cu合金氧化为三层结构，该层由较薄的CuO外层，较厚的中间Cu _0.92 Co _2.08 O ₄层和内Co ₃ O ₄层组成。空气。在800°氧化800 h后，三层氧化物结构转变为具有（Co，Cr，Cu，Mn，Fe）₃ O ₄尖晶石外层和内部富Cr氧化物层的双层氧化层。 C在空气中。铜Co涂层增强了合金的抗氧化性，并作为防止Cr元素向外迁移的扩散阻挡层。同时，Cu Co涂层合金的氧化皮的面积比电阻（ASR）显着低于裸露样品的氧化皮。