Influence of heat treatment on the structure and properties of CoCrFeMnNi + NbC coatings obtained by nonvacuum electron-beam surfacing

IF 0.8 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metallurgist Pub Date : 2025-06-09 DOI:10.1007/s11015-025-01921-8

A. B. Yurgin, A. A. Ruktuev, N. V. Stepanova, A. E. Riznitsky, D. V. Khudyakov, I. A. Bataev

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Abstract

By the method of nonvacuum electron-beam surfacing on carbon-steel substrates, we obtained a coating based on a high-entropy CoCrFeMnNi alloy reinforced with NbC particles. We studied the effects of annealing and quenching with subsequent artificial aging on the microstructures of the deposited layers, their elemental and phase compositions, and their mechanical properties. After surfacing, the structure of the samples is represented by the FCC phase corresponding to the CoCrFeMnNi alloy and NbC carbide particles. The procedure of thermal treatment leads to a decrease in texture and to the release of Me₂₃C₆-type carbides. The maximum microhardness (313±10HVV_0.1) is achieved as a result of quenching of the samples in water from 1100 °C with subsequent aging. The wear resistance of the coating layers after different procedures of heat treatment became 2–4 times higher than for the untreated material.

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热处理对非真空电子束堆焊CoCrFeMnNi + NbC涂层组织和性能的影响

采用非真空电子束堆焊碳钢基体的方法，获得了一种以NbC颗粒增强的高熵CoCrFeMnNi合金为基体的涂层。我们研究了退火、淬火和随后的人工时效对沉积层显微组织、元素和相组成以及力学性能的影响。堆焊后，样品的结构为FCC相，对应CoCrFeMnNi合金和NbC碳化物颗粒。热处理过程导致织构的减少和me23c6型碳化物的释放。将样品在1100 °C的水中淬火并随后时效，可获得最大显微硬度（313±10HVV0.1）。经过不同热处理工艺的涂层耐磨性比未处理的材料提高2-4倍。

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来源期刊

Metallurgist 工程技术-冶金工程

CiteScore

1.50

自引率

44.40%

发文量

151

审稿时长

4-8 weeks

期刊介绍： Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956. Basic topics covered include: State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining; Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment; Automation and control; Protection of labor; Protection of the environment; Resources and energy saving; Quality and certification; History of metallurgy; Inventions (patents).