The effect of precious metals in the NiAl coating on the oxidation resistance of the Inconel 713 superalloy

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI:10.2298/jmmb220427011z

M. Zagula-Yavorska, J. Romanowska

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引用次数: 1

Abstract

The rhodium incorporated aluminide coating was produced by the rhodium electroplating (0.5 ?m thick layer) followed by the chemical vapor deposition process on the Inconel 713 superalloy. This coating is composed of the ?-NiAl phase. A part of nickel atoms is replaced by rhodium atoms in the ?-NiAl phase. The plain, rhodium and platinum incorporated aluminide coatings were oxidized at 1100?C under the atmospheric pressure. The oxidation kinetics of the rhodium and platinum incorporated aluminide coatings are similar, but different than oxidation kinetic of the plain coating. The ?-Al2O3 is the main product both in rhodium and platinum modified coatings after 360 h of oxidation. Moreover, the ?-Ni3Al phase, besides the ?-NiAl phase, was identified. The presence of 4 at. % rhodium in the coating provides similar oxidation resistance as the presence of 10-20 at. % platinum. Both rhodium and platinum incorporated aluminide coatings produced by the chemical vapor deposition process offer good oxidation protection of the Inconel 713 superalloy.

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NiAl涂层中贵金属含量对Inconel 713高温合金抗氧化性能的影响

在Inconel 713高温合金上采用镀铑(0.5 μ m厚)和化学气相沉积法制备了含铑铝化物涂层。该涂层由-NiAl相组成。在-NiAl相中，一部分镍原子被铑原子所取代。将普通、铑和铂结合的铝化物涂层在1100℃下氧化。C在大气压下。铑和铂含铝涂层的氧化动力学与普通涂层的氧化动力学相似，但又有所不同。铑改性镀层和铂改性镀层经过360 h的氧化后，主要产物都是-Al2O3。此外，除了-NiAl相外，还鉴定出了-Ni3Al相。4个at的存在。在涂层中，%铑的抗氧化性与10-20 at的存在相似。%铂。化学气相沉积工艺生产的铑和铂结合铝化物涂层为Inconel 713高温合金提供了良好的氧化保护。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Mining and Metallurgy Section B-Metallurgy 工程技术-冶金工程

CiteScore

2.00

自引率

40.00%

发文量

审稿时长

2 months

期刊介绍： University of Belgrade, Technical Faculty in Bor, has been publishing the journal called Journal of Mining and Metallurgy since 1965 and in 1997 it was divided in two independent journals dealing with mining and metallurgy separately. Since 2009 Journal of Mining and Metallurgy, Section B: Metallurgy has been accepted in Science Citation Index Expanded. Journal of Mining and Metallurgy, Section B: Metallurgy presents an international medium for the publication of contributions on original research which reflect the new progresses in theory and practice of metallurgy. The Journal covers the latest research in all aspects of metallurgy including hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, solidification, mechanical working, solid state reactions, materials processing, surface treatment and relationships among processing, structure, and properties of materials.