为阻止Cr的外扩散、改善金属连接体的高温性能，采用高能微弧合金化（HEMAA）工艺，选用Mn-35Cu（原子分数%）合金电极在430SS基体上制备了Cu-Mn尖晶石涂层，然后在750℃空气中原位氧化得到Cu-Mn复合尖晶石涂层。结果表明：Cu-Mn复合尖晶石涂层致密，附着力良好；涂层的主要成分除了Cu-Mn尖晶石氧化物外，还含有一定量的Mn₂O₃，氧化层中基体元素Cr、Fe含量较低。涂层在800℃时的面比电阻测试结果显示，氧化100 h后得到的复合Cu-Mn尖晶石涂层的电阻值为10 mΩ·cm²。高能微弧合金化原位氧化后的复合Cu-Mn尖晶石涂层是一种很有前景的金属连接体涂层。

In order to prevent the external diffusion of Cr and improve the high temperature performance of metal joints, Cu-Mn spinel was prepared on 430SS substrate by high energy microarc alloying (HEMAA) process using Mn-35Cu (atomic fraction%) alloy electrode, and then, in situ oxidization in air at 750℃ was used to obtain a Cu-Mn composite spinel coating. The results showed that Cu-Mn composite spinel coating wass dense and had good adhesion. In addition to Cu-Mn spinel oxide, the main component of the coating also contained a certain amount of Mn₂O₃, and the content of Cr and Fe in the oxide layer was low. The area specific resistance test of the coating at 800℃ showed that the resistance of the composite Cu-Mn spinel coating obtained after oxidation for 100 h was 10 mΩ·cm². The composite Cu-Mn spinel coating after in-situ oxidation of high energy micro-arc alloy was a promising metal linker coating.