The developed Mn–Co and Mn–Co–Cu electroplated AISI 430 stainless steels were annealed in argon and further treated in oxygen, at 800 °C for 4 h in each step. The XRD results after the heat treatment exhibited the formation of MnCo₂O₄ and Co₃O₄ for the Mn–Co sample, and CoCuMnO_x and Co₃O₄ for the Mn–Co–Cu sample. A further oxidation test in O₂–5%H₂O at 600–800 °C showed that the oxidation kinetics of the coated samples followed the parabolic rate law and the Arrhenius relation. The oxidation rate of the steel was reduced by the coatings. The Cr-species volatilisation from the coated samples exposed to O₂–5%H₂O at 800 °C was measured and gave values in the order of 10^–11 g cm^–2 s^–1. The additional annealing process could help form a dense coating, thus contributing to a reduced rate of oxidation.

开发的 Mn-Co 和 Mn-Co-Cu 电镀 AISI 430 不锈钢在氩气中退火，并在氧气中进一步处理，每一步在 800°C 下持续 4 小时。热处理后的XRD结果表明Mn-Co样品形成MnCo ₂ O ₄和Co ₃ O ₄，Mn-Co-Cu样品形成CoCuMnO _x和Co ₃ O ₄。在 O ₂ –5%H ₂ O 中在 600–800 °C的进一步氧化试验表明，涂层样品的氧化动力学遵循抛物线速率定律和阿伦尼乌斯关系。涂层降低了钢的氧化速率。暴露于 O 的涂层样品中 Cr 物种的挥发在 800 °C 下测量了₂ –5%H ₂ O，并给出了大约 10 ^–11  g cm ^–2  s ^{–1 的值}。额外的退火过程有助于形成致密的涂层，从而有助于降低氧化速率。