Effect of Cr3C2 Additives on the Structure and Properties of Cantor Alloy Coatings

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2024-12-14 DOI:10.1007/s11041-024-01064-8

A. B. Yurgin, A. A. Ruktuev, D. V. Lazurenko, V. S. Shikalov, I. K. Chakin

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Abstract

The method of non-vacuum electron beam cladding is used to obtain coatings based on a high-entropy Cantor alloy reinforced with Cr₃C₂ particles. The microstructure of the coatings is studied; the chemical and phase compositions are determined; microhardness measurements, wear resistance and heat resistance tests are performed. The structure of the coatings is represented by an fcc matrix with Me₇C₃ carbides. Increase in the percentage of reinforcing particles leads to elevation of the proportion of the carbide phase in the cladding layer. The addition of carbide particles results in growth of the microhardness, wear resistance and oxidation resistance. The structure of the coating obtained from a powder mixture with 50 wt.% Cr₃C₂ exhibits a 60% volume fraction of carbides. The properties have the highest values in the coating obtained from a mixture with 50 wt.% carbide particles in the initial composition. Its hardness is 1071 ± 114 HV_0.1, and the wear resistance and the oxidation resistance increase with respect to the unreinforced coating by a factor of 15.3 and 3.3 respectively.

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Cr3C2添加剂对康托合金涂层组织和性能的影响

采用非真空电子束熔覆的方法制备了以Cr3C2粒子增强的高熵康托合金涂层。研究了涂层的显微组织；测定化学成分和相组成；进行显微硬度测量，耐磨性和耐热性测试。涂层的结构为含Me7C3碳化物的fcc基体。增强颗粒百分比的增加导致熔覆层中碳化物相比例的升高。碳化物颗粒的加入使合金的显微硬度、耐磨性和抗氧化性提高。当Cr3C2添加量为50%时，涂层中碳化物的体积分数为60%。在初始组合物中含有50%碳化物颗粒的混合物中获得的涂层中，这些性能具有最高的值。其硬度为1071±114 HV0.1，耐磨性和抗氧化性分别比未增强涂层提高15.3倍和3.3倍。

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.