不同时效状态下 Cu-Cr-Zr-Nb 合金的相结构、硬度和磨损性能

IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Research and Technology-Jmr&t Pub Date : 2024-09-13 DOI:10.1016/j.jmrt.2024.09.073
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引用次数: 0

摘要

作为一种典型的时效强化合金,Cu-Cr-Zr 合金具有高强度、良好的导电性和优异的耐磨性。在这项工作中,Cu-Cr-Zr-Nb 合金在时效过程后处于不同的时效状态。在 460 °C 下时效 4 小时后,合金处于峰值时效。与铜基体相一致的 FCC Cr 颗粒的存在和硬度的增加共同作用改善了合金的磨损性能。磨损试验结果表明,最佳磨损参数为转速 300 rpm、载荷 5 N。在这些磨损参数下,合金的平均摩擦系数(COF)值最低,质量损失最小,具有最佳耐磨性。此外,合金的磨损机理主要是粘着磨损和磨料磨损。
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The phase structure, hardness, and wear properties of the Cu–Cr–Zr–Nb alloy under different aging states

As a typical age-strengthened alloy, Cu–Cr–Zr alloys have high strength, good electrical conductivity, and excellent wear resistance. In this work, the Cu–Cr–Zr–Nb alloys were in different aging states after the aging process. After aging at 460 °C for 4 h, the alloy was peak-aging. The common effect of the existence of the FCC Cr particle, which was coherent with the Cu matrix, and the increase in hardness improved the wear property of the alloy. The results of the wear test showed that the optimal wear parameter was a speed of 300 rpm and a load of 5 N. Under these wear parameters, the alloy had the lowest mean coefficient of friction (COF) value and the least mass loss, having the best wear resistance. Furthermore, the wear mechanism of the alloy was mainly adhesive wear and abrasive wear.

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来源期刊
Journal of Materials Research and Technology-Jmr&t
Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys
CiteScore
8.80
自引率
9.40%
发文量
1877
审稿时长
35 days
期刊介绍: The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.
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