利用底层超合金中的合金元素提高铝涂层的抗氧化性

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-11-14 DOI:10.1016/j.corsci.2024.112568

Guo-Hui Meng, Ya-Nan Wang, Pei-Pei Gui, Shan-Shan Li, Wen-Jing Wang, Kai-Yu Guo, Guan-Jun Yang

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引用次数: 0

摘要

本研究的重点是超合金成分对铝涂层抗氧化性的影响。铝涂层沉积在不同成分的镍基超合金 Inconel 718 和 Mar-M247 上。结果表明，Inconel 718 镀层富含铁，而 Mar-M247 镀层富含钴。在 950°C 等温氧化后，Inconel 718 涂层的 Al2O3 鳞片主要为 α-Al2O3，而 Mar-M247 涂层的 Al2O3 鳞片则由θ-Al2O3 和 γ-Al2O3 组成。铬镍铁合金 718 涂层中的铁元素有助于从易变的 Al2O3 转变为稳定的 α-Al2O3，从而提高了抗氧化性。

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Improving oxidation resistance of aluminide coatings by alloying elements from underlying superalloys

This study focused on the effect of superalloy composition on the oxidation resistance of aluminide coatings. Aluminide coatings were deposited on nickel-based superalloys, Inconel 718 and Mar-M247, with different compositions. The results indicated that the Inconel 718 coatings were enriched with Fe, while the Mar-M247 coatings were enriched with Co. After isothermal oxidation at 950°C, the Al₂O₃ scale of the Inconel 718 coatings was primarily α-Al₂O₃, while that of the Mar-M247 coatings was composed of θ-Al₂O₃ and γ-Al₂O₃. The Fe element in Inconel 718 coatings facilitated the transformation from metastable Al₂O₃ to stable α-Al₂O₃, leading to improved oxidation resistance.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.