Study on the Microorganization and Wear Resistance of Complex Brass and Silicon Manganese Brass in the Key Friction Pair of Plunger Pump
MEI Ting1, XU Hongyang2, LI Xun1, LONG Yunwei1, TANG Hua1, LI Zhipeng2, ZOU Aihua2,*
1 Air China Guizhou Honglin Aviation Power Control Technology Co.,Ltd., Guiyang 550000, China 2 School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
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.
梅婷, 徐洪扬, 李逊, 龙运伟, 唐华, 李志鹏, 邹爱华. 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[J]. 材料导报, 2025, 39(7): 24080117-5.
MEI Ting, XU Hongyang, LI Xun, LONG Yunwei, TANG Hua, LI Zhipeng, ZOU Aihua. Study on the Microorganization and Wear Resistance of Complex Brass and Silicon Manganese Brass in the Key Friction Pair of Plunger Pump. Materials Reports, 2025, 39(7): 24080117-5.
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2025, Vol. 39 
