柱塞泵关键摩擦副中复杂黄铜与硅锰黄铜的微观组织与耐磨特性研究

doi:10.11896/cldb.24080117

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Abstract Using metallographic microscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and a UMT tribological tester, the microstructure and wear resistance of complex brass (HAl61-4-3-1) and silicon-manganese brass (HMn60-3-1-0.75) were studied. The experimental results indicate that both HAl61-4-3-1 and HMn60-3-1-0.75 wear-resistant brass are mainly composed of three phases:needle-like α phase, β phase, and a strengthening phase, with copper (Cu) and zinc (Zn) as the primary components of the α and β phases. The particle-like strengthening phase in HAl61-4-3-1 wear-resistant brass is primarily composed of aluminum (Al), cobalt (Co), nickel (Ni), iron (Fe), and silicon (Si). In contrast, the strengthening phase in HMn60-3-1-0.75 wear-resistant brass is identified as needle-like Mn₅Si₃. Compared to HMn60-3-1-0.75, HAl61-4-3-1 brass exhibits higher hardness, lower friction coefficient, and reduced wear volume, with specific values of 181.3HV, 0.177, and 1.13×10^-3 g, respectively. This difference is mainly due to the matrix hardness of HAl61-4-3-1 brass is greater than that of HMn 60-3-1-0.75. The furrow effect is reduced and the peeling and adhesion is reduced. Through the analysis of HAl61-4-3-1 wear morphology, its main wear forms are grinding and adhesive wear, with a small amount of fatigue and oxidative wear.

Key words： complex brass plunger pump microscopic structure wear

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

CLC number:

TG146.1+1

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	Articles by authors
	MEI Ting
	XU Hongyang
	LI Xun
	LONG Yunwei
	TANG Hua
	LI Zhipeng
	ZOU Aihua

Cite this article:

MEI Ting,XU Hongyang,LI Xun, et al. Study on the Microorganization and Wear Resistance of Complex Brass and Silicon Manganese Brass in the Key Friction Pair of Plunger Pump[J]. Materials Reports, 2025, 39(7): 24080117-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24080117 OR https://www.mater-rep.com/EN/Y2025/V39/I7/24080117

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