In this study, the Pt + NiCrAlYSi coating and NiCrAlYSi+Pt coating were produced onto the Ni-based single crystal superalloy by using the arc ion plating (AIP) and electroplating. For the Pt + NiCrAlYSi coating, the Pt mainly distributed in substrate and the bottom of coating, while the Pt primarily located at the outer part of NiCrAlYSi+Pt coating. After isothermal oxidation at 1100 °C, the weight gains for the NiCrAlYSi coating, Pt + NiCrAlYSi coating and NiCrAlYSi+Pt coating were 1.81 mg/cm², 1.68 mg/cm² and 1.37 mg/cm², respectively. The parabolic rate constant of the NiCrAlYSi+Pt coating was 6.2 × 10⁻³ mg² cm⁻⁴ h⁻¹, which was the smallest among three kinds of coatings. The mass of spalled oxides for the NiCrAlYSi coating, Pt + NiCrAlYSi coating and NiCrAlYSi+Pt coating were 2.07 mg/cm², 0.937 mg/cm² and 0.801 mg/cm² after cyclic oxidation at 1150 °C. So, the addition of Pt in the NiCrAlYSi coating can significantly improve the adhesion of alumina scale. The oxidation test results indicated that the NiCrAlYSi+Pt coating showed the best oxidation resistance. Some Pt-rich particles were observed on the surface of the NiCrAlYSi+Pt coating after 1 cycle at 1150 °C. The enrichment of Pt on the outer part of NiCrAlYSi+Pt coating can increase the out diffusion flux of Al and promote the fast formation of pure Al₂O₃ at the early stage of oxidation.

在这项研究中，通过使用电弧离子镀（AIP）和电镀在Ni基单晶高温合金上生产了Pt + NiCrAlYSi涂层和NiCrAlYSi + Pt涂层。对于Pt + NiCrAlYSi涂层，Pt主要分布在基材和涂层底部，而Pt主要位于NiCrAlYSi + Pt涂层的外部。在1100等温氧化之后℃下，对于NiCrAlYSi涂层的重量增加，铂+ NiCrAlYSi涂层和NiCrAlYSi +铂涂层分别为1.81毫克/平方厘米²，1.68毫克/平方厘米²和1.37毫克/平方厘米²分别。NiCrAlYSi + Pt涂层的抛物线速率常数为6.2×10 ^-3  mg ²  cm ^-4  h ^-1，这是三种涂料中最小的。为NiCrAlYSi涂层，铂+ NiCrAlYSi涂层和NiCrAlYSi +铂涂层剥落氧化物的质量分别为2.07毫克/平方厘米²，0.937毫克/平方厘米²和0.801毫克/平方厘米²后，在1150循环氧化℃。因此，在NiCrAlYSi涂层中添加Pt可以显着提高氧化铝鳞片的附着力。氧化测试结果表明，NiCrAlYSi + Pt涂层具有最佳的抗氧化性。在1150°C下经过1个循环后，在NiCrAlYSi + Pt涂层的表面上观察到一些富含Pt的颗粒。NiCrAlYSi + Pt涂层外部富集Pt可以增加Al的向外扩散通量并促进纯Al ₂ O ₃的快速形成 在氧化的初期。