添加石墨和氧化锆对等离子喷涂氧化铝涂层摩擦学特性的影响

IF 2.9 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Coatings Pub Date : 2024-08-02 DOI:10.3390/coatings14080978

Liutauras Marcinauskas, Karina Ratautaitė, Žydrūnas Kavaliauskas, Audrius Žunda, Romualdas Kėželis, Mindaugas Aikas

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引用次数: 0

摘要

利用大气等离子喷涂技术在 C45 钢辊上形成了 Al2O3、Al2O3-石墨和 Al2O3-ZrO2 涂层。分析了添加石墨和氧化锆对表面形貌、相组成以及在 30 N 负载干滑动条件下的摩擦学性能的影响。研究发现，石墨或氧化锆的添加会轻微影响氧化铝涂层中 α-Al2O3 和 γ-Al2O3 相的比例。C45 钢辊和钢板摩擦副的质量损失率最高（~8.84 × 10-4 g/s）。与 Al2O3-ZrO2 涂层相比，Al2O3-石墨涂层的摩擦系数略低（低至 7%）。然而，在干滑动条件下，Al2O3-ZrO2 涂层与钢板的摩擦副表现出最高的耐磨性。Al2O3-石墨涂层和 Al2O3-ZrO2 涂层耐磨性的提高是由于在滑动接触区形成了三膜。

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Influence of Graphite and Zirconia Addition on the Tribological Properties of Plasma-Sprayed Alumina Coatings

Al2O3, Al2O3-graphite and Al2O3-ZrO2 coatings were formed on the C45 steel rolls using atmospheric plasma spraying. The influence of graphite and zirconia addition on the surface morphology, phase composition and tribological properties under dry sliding conditions using 30 N load were analyzed. It was found that the addition of graphite or ZrO2 slightly affected the fraction of the α-Al2O3 and γ-Al2O3 phases in the alumina coatings. The highest mass loss rate (~8.84 × 10−4 g/s) was obtained for the friction pair of C45 steel roll and steel plate. The friction coefficient of the Al2O3-graphite coating was slightly lower (up to 7%) compared to the coating of Al2O3-ZrO2. However, the friction pair of Al2O3-ZrO2 coating and steel plate demonstrated the highest wear resistance under dry sliding conditions. The increase in the wear resistance of the Al2O3-graphite and Al2O3-ZrO2 coatings is due to the formation of tribofilm in the sliding contact zone.

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来源期刊

Coatings Materials Science-Surfaces, Coatings and Films

CiteScore

5.00

自引率

11.80%

发文量

1657

审稿时长

1.4 months

期刊介绍： Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material