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材料工程  2014, Vol. 0 Issue (10): 65-70    DOI: 10.11868/j.issn.1001-4381.2014.10.012
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
Mg对原位合成TiC-Al2O3/Al复合材料组织与耐磨性的影响
张瑞英1, 陈素娟1, 史志铭1, 张连凤2
1. 内蒙古工业大学 材料科学与工程学院 内蒙古轻合金重点实验室, 呼和浩特 010051;
2. 内蒙古第一机械集团公司, 内蒙古 包头 014030
Effect of Mg on Microstructures and Abrasive Resistance of In-situ Synthesis TiC-Al2O3/Al Composites
ZHANG Rui-ying1, CHEN Su-juan1, SHI Zhi-ming1, ZHANG Lian-feng2
1. Key Laboratory of Light Metal Materials, School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Inner Mongolia First Machinery Group Corporation, Baotou 014030, Inner Mongolia, China
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摘要 以TiO2,C,Al和Mg粉为原料,原位合成TiC-Al2O3/Al基复合材料。采用XRD和SEM及磨损实验等手段研究Mg对复合材料微观组织及耐磨性的影响。结果表明:Mg影响反应过程及第二相分布,随着Mg含量的增加耐磨性逐渐增加,当预制块中镁为1.0%(质量分数)时,第二相分布弥散、细小,其颗粒尺寸约为2μm,耐磨性最好,磨损量仅为基体的1/6,继续增大Mg含量,由于生成大量粗针状Al3Ti,复合材料的耐磨性反而降低。
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张瑞英
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史志铭
张连凤
关键词 MgTiC-Al2O3/Al基复合材料原位合成耐磨性    
Abstract:TiC and Al2O3 particles reinforced aluminum matrix composite was synthesized from TiO2,C,Al and Mg powder by the in-situ method. The effects of Mg on the microstructure and abrasive resistance of TiC-Al2O3/Al composite were investigated using XRD,SEM and wear testing. The results show that Mg influences the reaction process and the second phase distribution. The abrasive resistance of the composites increases with increasing Mg content. When Mg content in green compacts reaches 1.0% (mass fraction),the reinforcement particles are the most uniform and the smallest. The average size of reinforcement particles is about 2μm. The abrasive resistance of composites is optimal and the abrasion loss is only 1/6 of the matrix. However,with the further increase of Mg content,the abrasion resistance of composites decreases inversely due to producing coarse needle-like Al3Ti.
Key wordsMg    TiC-Al2O3/Al composite    in-situ synthesis    abrasive resistance
收稿日期: 2013-01-15     
1:  TB331  
基金资助:内蒙古科技奖励引导基金(20101707);内蒙古自然科学基金(2013MS0804);内蒙古工业大学校基金(ZD20120015);内蒙古自治区高等学校科学技术研究项目(NJZZ14056)
通讯作者: 张瑞英(1972-), 副教授, 博士, 主要从事于铝合金及金属基复合材料的研究, 联系地址: 内蒙古工业大学材料科学与工程学院(010051), E-mail: zhang_ruiying@126.com     E-mail: zhang_ruiying@126.com
引用本文:   
张瑞英, 陈素娟, 史志铭, 张连凤. Mg对原位合成TiC-Al2O3/Al复合材料组织与耐磨性的影响[J]. 材料工程, 2014, 0(10): 65-70.
ZHANG Rui-ying, CHEN Su-juan, SHI Zhi-ming, ZHANG Lian-feng. Effect of Mg on Microstructures and Abrasive Resistance of In-situ Synthesis TiC-Al2O3/Al Composites. Journal of Materials Engineering, 2014, 0(10): 65-70.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2014.10.012      或      http://jme.biam.ac.cn/jme/CN/Y2014/V0/I10/65
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