ZrC/ nbc增强crmneconi涂层的高温磨损性能

IF 2.4 4区材料科学 Q3 MATERIALS SCIENCE, COATINGS & FILMS

Surface Engineering Pub Date : 2022-09-02 DOI:10.1080/02670844.2022.2153497

Dacheng Sun, Yangchuan Cai, Lisong Zhu, Jianv Han

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引用次数: 1

摘要

摘要近年来，对高熵合金的研究显示出优异的性能。为了提高CrMnFeCoNi合金的高温耐磨性，采用激光熔覆法制备了难熔碳化物（NbC和ZrC）增强CrMnFeCoNi复合涂层，并对其耐磨性能进行了研究。该复合涂层没有显示出与基体冶金结合的裂纹或其他缺陷。在600°C的往复磨损试验中，这些涂层表现出氧化和粘附磨损机制。与NbC的强化相反，涂层中的ZrC在高温磨损过程中迅速氧化，形成大量的ZrO2。这些在磨损中形成的氧化物促进了保护膜的形成，进一步提高了涂层的抗氧化性和耐磨性。

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High-temperature wear behaviour of ZrC/NbC-reinforced CrMnFeCoNi coatings

ABSTRACT Nowadays, studies of high entropy alloys (HEAs) have shown excellent properties. To improve the high-temperature wear resistance of CrMnFeCoNi alloy, refractory carbides (NbC and ZrC, respectively) reinforced CrMnFeCoNi composite coating were prepared by laser cladding (LC), and its wear performance was investigated. The composite coating showed no cracks or other defects that had metallurgical bonding with the substrate. Those coatings exhibited oxidative and adhesive wear mechanisms in reciprocating wear tests at 600°C. In contrast to the strengthening of NbC, the ZrC in the coating rapidly oxidized during high-temperature wear, forming a large amount of ZrO2. These oxides formed in wear promote the formation of a protective film, further improving the oxidation resistance and wear resistance of the coating.

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来源期刊

Surface Engineering 工程技术-材料科学：膜

CiteScore

5.60

自引率

14.30%

发文量

审稿时长

2.3 months

期刊介绍： Surface Engineering provides a forum for the publication of refereed material on both the theory and practice of this important enabling technology, embracing science, technology and engineering. Coverage includes design, surface modification technologies and process control, and the characterisation and properties of the final system or component, including quality control and non-destructive examination.