镍基单晶叶片不同倾角薄膜冷却孔的氧化行为和氧化动力学

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Research and Technology-Jmr&t Pub Date : 2024-09-10 DOI:10.1016/j.jmrt.2024.09.060

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引用次数: 0

摘要

本文研究了具有不同倾角的镍基单晶涡轮叶片薄膜冷却孔的高温氧化行为。利用氧化动力学理论，引入了角度影响因子的概念，并制定了新的氧化动力学方程。这样就能在整个氧化过程中精确预测不同倾角下薄膜冷却孔中的氧化物/无γ′层厚度。它为未来的寿命预测模型提供了一个新的基准，对空气冷却单晶叶片的运行寿命评估产生了重大影响。

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Oxidation behavior and oxidation kinetics of film cooling holes at different inclination angles of a Ni-based single-crystal blade

This paper examines the high-temperature oxidation behavior of Ni-based single-crystal turbine blade film cooling holes with varying inclination angles. Utilizing the theory of oxidation kinetics, the concept of an angle influence factor is introduced, and a novel oxidation kinetic equation is formulated. This allows for precise prediction of the oxide/γ′-free layer thickness in film cooling holes across different inclination angles throughout the oxidation process. It offers a new benchmark for future lifespan prediction models, significantly impacting the assessment of the operational life of air-cooled single crystal blades.

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来源期刊

Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys

CiteScore

8.80

自引率

9.40%

发文量

1877

审稿时长

35 days

期刊介绍： The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.