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首页> 外文期刊>Journal of Thermal Spray Technology >Oxidation Resistance of Vacuum Plasma Sprayed CoNiCrAlY Coatings Modified by Filtered Cathodic Vacuum Arc Deposition Aluminizing
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Oxidation Resistance of Vacuum Plasma Sprayed CoNiCrAlY Coatings Modified by Filtered Cathodic Vacuum Arc Deposition Aluminizing

机译：过滤阴极真空电弧沉积渗铝改性的真空等离子喷涂CoNiCrAlY涂层的抗氧化性能

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摘要

The vacuum plasma sprayed CoNiCrAlY coatings are modified by filtered cathodic vacuum arc deposition aluminizing. The microstructure and oxidation resistance of the coatings are investigated. The parabolic law is obeyed for the aluminized coatings after oxidation at 1100℃ for 100 h. Its parabolic kinetic constant is 0.080 mg~2/cm~4 h, which is lower than that of as-sprayed coatings. The continuous and dense Al_2O_3 scale is formed earlier due to the increase of Al concentration, and the spinels hardly exist. The oxidation resistance is improved obviously after filtered cathodic vacuum arc deposition aluminizing.
机译：真空等离子喷涂CoNiCrAlY涂层通过过滤的阴极真空电弧沉积镀铝进行改性。研究了涂层的微观结构和抗氧化性能。在1100℃氧化100 h后，镀铝层遵循抛物线律。其抛物线动力学常数为0.080 mg〜2 / cm〜4 h，低于喷涂后的涂层。由于Al浓度的增加，较早形成连续致密的Al_2O_3水垢，几乎不存在尖晶石。过滤后的阴极真空电弧沉积镀铝后，抗氧化性能明显提高。

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