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采用电弧离子镀在新型γ′-Ni_3Al基高温合金IC-6上沉积Ni-Cr-Al-Y和Ni-Co-Cr-Al-Y涂层，研究了合金元素对MCrAlY涂层性能及元素行为的影响，结果表明：在沉积过程中，合金中的Al和Mo元素抑制了Cr从涂层向基体扩散，使涂层中的Cr维持在较高浓度；真空扩散处理时，涂层和基体之间发生互扩散，使涂层-基体元素浓度呈梯度分布，减小了涂层和基体热膨胀系数的差别，同时，涂层的相结构也发生变化。γ′-Ni_3Al和γ-Ni仍是涂层的主要相，但是由于Cr原子的取代作用致使晶格常数α_0发生变化，等温氧 化实验表明：Ni-Cr-Al-Y和Ni-Co-Cr-Al-Y涂层氧化规律遵循抛物线规律。900 ℃静态空气等温氧化时，Ni-Cr-Al-Y涂层中加入Co对其抗氧化性能的影响不大。1000℃静态空气等温氧化时，Ni-Cr-Al-Y涂层中加入Co后，降低了其抗氧化性。
Ni-Cr-Al-Y and Ni-Co-Cr-Al-Y coatings were deposited on the novel γ’-Ni_3Al superalloy IC-6 by arc ion plating. The effects of alloying elements on the properties and elemental properties of MCrAlY coatings The results show that during the deposition process, the Al and Mo elements in the alloy suppress the diffusion of Cr from the coating to the matrix, so that the Cr content in the coating is maintained at a relatively high concentration. In the vacuum diffusion treatment, the coating and the matrix Interdiffusion occurs between the coating - matrix element concentration gradient distribution, reducing the difference between the thermal expansion coefficient of the coating and the substrate, at the same time, the phase structure of the coating also changes. γ’-Ni 3 Al and γ-Ni are still the main phase of the coating, but the lattice constant α_0 changes due to the substitution of Cr atoms. The isothermal oxidation experiments show that the Ni-Cr-Al-Y and Ni-Co- Al-Y coating oxidation follows the law of parabola. 900 ℃ static air isothermal oxidation, Ni-Cr-Al-Y coating added Co has little effect on its oxidation resistance. 1000 ℃ static air isothermal oxidation, Ni-Cr-Al-Y coating added Co, reduced its oxidation resistance.