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材料导报  2018, Vol. 32 Issue (18): 3223-3229    https://doi.org/10.11896/j.issn.1005-023X.2018.18.022
  金属与金属基复合材料 |
硼铁含量对铜基粉末冶金制动材料性能的影响
袁振军, 贺甜甜, 杜三明, 张永振
河南科技大学,高端轴承摩擦学技术与应用国家地方联合工程实验室,洛阳 471023
Influence of Ferroboron Content on Property of Copper-based Brake Materials by Powder Metallurgy
YUAN Zhenjun, HE Tiantian, DU Sanming, ZHANG Yongzhen
National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang 471023
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摘要 采用粉末冶金法制备铜基制动摩擦材料,研究了硼铁添加量对材料的摩擦系数、磨损率的影响规律。通过扫描电子显微镜观察材料的微观组织结构和摩擦磨损表面形貌,并分析其摩擦磨损机理。研究结果表明:硼铁含量低(0%~6%)时,材料的摩擦系数显著降低,磨损率较高;硼铁含量高(9%~12%)时,材料在高速下的摩擦系数较高且波动不大,磨损率较小。材料的磨损在低速下以磨粒磨损为主,随着制动速度的增大,磨损逐渐变成以氧化磨损和粘着磨损的混合机制为主。综合比较可知,硼铁含量为12%时,材料的摩擦系数波动不大,在高速制动下趋于平稳,且其耐磨性能较好。
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袁振军
贺甜甜
杜三明
张永振
关键词:  铜基制动材料  粉末冶金  摩擦磨损  硼铁    
Abstract: The effect of ferroboron content on the friction coefficient and wear rate of copper-based brake friction material prepared by powder metallurgy method was investigated. The microstructure, friction and wear surface morphology of the material were characterized by scanning electron microscopy (SEM). Meanwhile, the mechanism of friction and wear was analyzed. The results demonstrated that when the content of ferroboron was low (0%—6%), the friction coefficient of the material was significantly reduced and the wear rate was higher. When the content of ferroboron was high (9%—12%), the friction coefficient of the material at high speed was higher and the fluctuation was small and the wear rate was smaller. The wear mechanism of friction material was dominated by abrasive wear at lower speed and the mix of adhesive and oxidation wear at higher speed. In the comprehensive compa-rison, when the content of ferroboron was 12%, the friction coefficient fluctuated little and tended to be stable under high speed braking, and the wear-resisting property was better.
Key words:  copper-based brake material    powder metallurgy    friction and wear    ferroboron
                    发布日期:  2018-10-18
ZTFLH:  TH117  
基金资助: 河南省重大科技攻关基金项目(122101210100);河南省科技厅省院科技合作基金项目(112106000034)
通讯作者:  贺甜甜:女,1986年生,博士,主要研究方向为轴承摩擦学 E-mail:tthe@haust.edu.cn   
作者简介:  袁振军:男,1989年生,硕士研究生,主要从事铜基粉末冶金摩擦材料的研究 E-mail:15236192065@163.com
引用本文:    
袁振军, 贺甜甜, 杜三明, 张永振. 硼铁含量对铜基粉末冶金制动材料性能的影响[J]. 材料导报, 2018, 32(18): 3223-3229.
YUAN Zhenjun, HE Tiantian, DU Sanming, ZHANG Yongzhen. Influence of Ferroboron Content on Property of Copper-based Brake Materials by Powder Metallurgy. Materials Reports, 2018, 32(18): 3223-3229.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.18.022  或          http://www.mater-rep.com/CN/Y2018/V32/I18/3223
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