Cu-0.9Be-1.5Ni-0.04Y合金的摩擦磨损与电化学腐蚀性能研究

doi:10.11896/cldb.24010241

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Abstract The beryllium-copper alloys, with exceptional strength, hardness, corrosion resistance, and wear properties, are extensively utilized in the aerospace, electronics, and communications industries. The incorporation of rare earth elements has been found to enhance the properties of copper alloys in recent years. However, the effect of rare earth element Y on the friction and wear of beryllium copper alloys as well as electrochemical corrosion has rarely been studied. In this work, Cu-0.9Be-1.5Ni-0.04Y alloys were prepared by vacuum melting, and the effects of the addition of Y on the phase composition, microstructure, frictional wear and electrochemical corrosion of Cu-0.9Be-1.5Ni alloys were investigated. The results show that the addition of rare earth element Y has significantly refined the grain of Cu-0.9Be-1.5Ni alloy, and the wear resistance has been improved under different load and frequency conditions. In addition, the addition of Y makes the alloy form a dense oxide film in the electrochemical corrosion process, at the same time reduces the chemical activity of the grains and grain boundaries. Its self-corrosion current decreases from 7.26×10^-6 A/cm² to 6.35×10^-6 A/cm², the electrode reaction and corrosion rate of the alloy decreases, which indicates that the alloy's corrosion resistance improves.

Key words： friction and wear electrochemical corrosion Y beryllium copper alloy

Published: 10 April 2025 Online: 2025-04-10

CLC number:

TG146.1

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	Articles by authors
	HUANG Hanbing
	WANG Pei
	QIAO Shi
	MA Rulong
	HAO Zhenhua
	SHU Yongchun
	HE Jilin

Cite this article:

HUANG Hanbing,WANG Pei,QIAO Shi, et al. Study on Frictional Wear and Electrochemical Corrosion Properties of Cu-0.9Be-1.5Ni-0.04Y Alloys[J]. Materials Reports, 2025, 39(7): 24010241-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24010241 OR https://www.mater-rep.com/EN/Y2025/V39/I7/24010241

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