Effect of volume fraction on microstructure and mechanical properties of Si3N4/Al composites

被引：36
作者：
Xiu Zi-yang [1 ]
Chen Guo-qin [1 ]
Wu Gao-hui [1 ]
Yang Wen-shu [1 ]
Liu Yan-mei [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2011年 / 21卷
基金：
高等学校博士学科点专项科研基金;
关键词：
Si3N4/Al composite; microstructure; bending properties; fracture surface; THERMAL-EXPANSION; INFILTRATION; ALLOY;
D O I：
10.1016/S1003-6326(11)61592-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Si3N4 particles reinforced aluminium matrix composites (Si3N4/Al) with different particle volume fractions (45%, 50%, and 55%) were fabricated by pressure infiltration method. The effects of Si3N4 volume fraction and T6 treatment on microstructure and mechanical properties of Si3N4/Al composite were investigated. The results show that Si3N4/Al composites are well infiltrated with good particles dispersion and no apparent porosity or significant casting defects are observed. High density of dislocations in Al matrix around Si3N4 particles is observed. The bending strength of Si3N4/Al composites decreases with an increase in Si3N4 volume fraction, and can be greatly improved by T6 treatment. Elastic modulus of composites increases linearly with Si3N4 volume fraction. At a lower Si3N4 volume fraction, more tearing ridge and dimples with elongation are observed. T6 heat treatment shows minor effect on the fracture surface of composite.
引用
收藏
页码：S285 / S289
页数：5
相关论文
共 20 条
[1]   Effect of mechanical alloying process on mechanical properties of α-Si3N4 reinforced aluminum-based composite materials [J].
Arik, Halil .
MATERIALS & DESIGN, 2008, 29 (09) :1856-1861
[2]   Effect of thermal-cooling cycle treatment on thermal expansion behavior of particulate reinforced aluminum matrix composites [J].
Chen Guo-qin ;
Xiu Zi-yang ;
Yang Wen-shu ;
Jiang Long-tao ;
Wu Gao-hui .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (11) :2143-2147
[3]   Thermal expansion and mechanical properties of high reinforcement content SiCp/Cu composites fabricated by squeeze casting technology [J].
Chen Guo-qin ;
Xiu Zi-yang ;
Meng Song-he ;
Wu Gao-hui ;
Zhu De-zhi .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2009, 19 :S600-S604
[4]   Reactive wetting and spreading of Al-Si-Mg alloys on Si3N4/Si substrates [J].
de la Pena, J. L. ;
Pech-Canul, M. I. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 491 (1-2) :461-469
[5]  
Guo S.J., 2006, T NONFERR METAL SOC, V16, P629
[6]   Properties of silicon nitride for aluminum melts prepared by nitrided pressureless sintering [J].
Han, In-Sub ;
Seo, Doo-Won ;
Kim, Sei-Young ;
Hong, Ki-Seog ;
Guahk, Kil Ho ;
Lee, Kee Sung .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (05) :1057-1063
[7]   Effect of heat treatment on microstructure and dimensional stability of ZL114A aluminum alloy [J].
Jiang Long-tao ;
Wu Gao-hui ;
Yang Wen-shu ;
Zhao Yong-gang ;
Liu Shan-shan .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (11) :2124-2128
[8]   The mechanical properties of co-continuous Si3N4/Al composites manufactured by squeeze casting [J].
Lu, Yuan ;
Yang, Jianfeng ;
Lu, Weizhong ;
Liu, Rongzhen ;
Qiao, Guanjun ;
Bao, Chonggao .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (23) :6289-6299
[9]   Fabrication and mechanical properties of high-volume-fraction Si3N4-Al-based composites by squeeze infiltration casting [J].
Peng, LM ;
Han, KS ;
Cao, JW ;
Noda, K .
JOURNAL OF MATERIALS SCIENCE LETTERS, 2003, 22 (04) :279-282
[10]   Friction and wear behavior of Ni-P coated Si3N4 reinforced Al6061 composites [J].
Ramesh, C. S. ;
Keshavamurthy, R. ;
Channabasappa, B. H. ;
Pramod, S. .
TRIBOLOGY INTERNATIONAL, 2010, 43 (03) :623-634
12