HVOF TiAlNb涂层在Zn-0.2wt.%Al熔体中的腐蚀行为

IF 2.7 4区材料科学 Q3 ELECTROCHEMISTRY

Corrosion Reviews Pub Date : 2022-03-30 DOI:10.1515/corrrev-2021-0073

H. Zeng, Li Maria Ma, Chuanqi Wang, J. Lin, Laiqi Zhang

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引用次数: 1

摘要

摘要为了了解高速氧燃料(HVOF) TiAlNb涂层在Zn-0.2 wt.% Al熔液中的腐蚀行为，在316L不锈钢基体上沉积了不同类型的TiAlNb涂层，并进行了熔融锌中的腐蚀试验。采用扫描电镜(SEM)、x射线衍射(XRD)和能量色散x射线光谱(EDX)研究了不同浸渍时间下HVOF TiAlNb涂层的形貌、相组成和特性。结果表明:HVOF喷涂TiAlNb金属间化合物涂层具有优异的耐熔融锌腐蚀性能。HVOF TiAlNb涂层在Zn-0.2 wt.% Al熔液中的腐蚀类型为点蚀和裂纹腐蚀。在熔融Zn-0.2 wt.% Al的整个腐蚀阶段，腐蚀时间对HVOF TiAlNb涂层的相组成没有影响。

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The corrosion behavior of HVOF TiAlNb coating in molten Zn-0.2 wt.% Al

Abstract In order to understand the corrosion behavior of high-velocity oxygen-fuel (HVOF) TiAlNb coatings in molten Zn-0.2 wt.% Al, the different kinds of TiAlNb coating were deposited on 316L stainless steel substrate and the corrosion tests in molten zinc were carried out. The coating morphologies, phase composition, and characteristics of HVOF TiAlNb coatings at different stages of immersion time were studied by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectrometry (EDX). The results indicated that the HVOF sprayed TiAlNb intermetallic compound coatings have excellent corrosion resistance to molten zinc. The corrosion type of the HVOF TiAlNb coatings in molten Zn-0.2 wt.% Al is pitting corrosion and crack corrosion. In the whole corrosion stage of molten Zn-0.2 wt.% Al, the corrosion time has no effect on the phase compositions of the HVOF TiAlNb coatings.

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来源期刊

Corrosion Reviews 工程技术-材料科学：膜

CiteScore

5.20

自引率

3.10%

发文量

审稿时长

4.5 months

期刊介绍： Corrosion Reviews is an international bimonthly journal devoted to critical reviews and, to a lesser extent, outstanding original articles that are key to advancing the understanding and application of corrosion science and engineering in the service of society. Papers may be of a theoretical, experimental or practical nature, provided that they make a significant contribution to knowledge in the field.