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金属学报  2013, Vol. 49 Issue (9): 1131-1136    DOI: 10.3724/SP.J.1037.2013.00001
  论文 本期目录 | 过刊浏览 |
Cu含量对Al2O3·SiO2sf/Al-Cu复合材料耐磨性能的影响
许虹宇1,2),黄陆军3),耿林3),张杰3),黄玉东2)
1) 哈尔滨辰能工大环保科技股份有限公司, 哈尔滨 150078
2) 哈尔滨工业大学化工学院, 哈尔滨 150001
3) 哈尔滨工业大学材料科学与工程学院, 哈尔滨 150001
EFFECTS OF Cu CONTENT ON THE WEAR PROPERTIES OF Al2O3•SiO2sf/Al-Cu COMPOSITES
XU Hongyu 1, 2), HUANG Lujun3), GENG Lin3), ZHANG Jie3), HUANG Yudong2)
 
1) Harbin Chenneng Gong Da Enviromental Technology Co., Ltd., Harbin 150078
2) College of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001
3) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001
引用本文:

许虹宇,黄陆军,耿林,张杰,黄玉东. Cu含量对Al2O3·SiO2sf/Al-Cu复合材料耐磨性能的影响[J]. 金属学报, 2013, 49(9): 1131-1136.
XU Hongyu, HUANG Lujun, GENG Lin, ZHANG Jie, HUANG Yudong. EFFECTS OF Cu CONTENT ON THE WEAR PROPERTIES OF Al2O3•SiO2sf/Al-Cu COMPOSITES[J]. Acta Metall Sin, 2013, 49(9): 1131-1136.

全文: PDF(1689 KB)  
摘要: 

通过挤压铸造的方法制备出了不同Cu含量的系列Al2O3·SiO2sf/Al-Cu复合材料. 摩擦磨损实验结果表明,Cu的加入降低了复合材料的摩擦系数; 且随着Cu含量的增加, Al2O3•SiO2sf/Al-Cu复合材料的耐磨性能先增加后降低. 在磨损过程中, Al2O3•SiO2纤维增强相牢固地镶嵌在基体里并形成支架, 起到保护基体而提高复合材料耐磨性能的作用. Al2O3•SiO2sf/Al复合材料的磨损机制主要为黏着磨损,Al2O3•SiO2sf/Al-Cu复合材料的磨损机制为黏着磨损为主并伴有磨粒磨损.

Abstract

Al2O3•SiO2sf/Al-Cu composites with different Cu contents were successfully fabricated by squeeze casting. The wear test results show that friction coefficient of the composites decreases with increasing Cu contents. Moreover, the wear resisting property of the prepared composites firstly increases and then decreases with increasing Cu contents. In wear testing process, Al2O3•SiO2 fibers are firmly fixed in the matrix and formed the framework which can protect Al matrix from grinding. Therefore, the wear resistance of the composites is increased by addition of Al2O3•SiO2 fiber reinforcement. The main wear mechanism of Al2O3•SiO2sf/pure Al composite is adherence abrasion, while that of Al2O3•SiO2sf/Al-Cu composite is adhesive wear accompanied by abrasive wear.

收稿日期: 2013-01-04     
基金资助:

国家重点基础研究发展计划项目 2012CB619600, 黑龙江省自然科学基金E200929和黑龙江省博士后基金LRB08-189资助

作者简介: 许虹宇, 女, 1968年生, 研究员, 博士

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