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论文类型：会议论文

发表时间：2016-10-20

收录刊物：EI

卷号：898 MSF

页面范围：355-360

摘要：Special brasses containing Mn and Si possess high wear resistance due to the dispersion of hard Mn5Si3particles. The effect of precipitation hardening on the wear resistance of a Cu-30Zn-3Al-3Mn-0.7Si based brass alloy was investigated. Dry sliding wear test was conducted using a block-on-ring configuration. The results indicated that finely, nano-scale Mn5Si3particles precipitated from the matrix after annealing at 800°C for 4 h, resulting in the increase of hardness from 240 to 278 HV. Both the wear loss and friction coefficient decreased, indicating the improvement of the wear resistance. From the examination of the worn surfaces, adhesive and abrasive wear were found to be the major wear forms. The adhesion and abrasion decreased after the precipitation-hardening treatment. © 2017 Trans Tech Publications, Switzerland.