Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 5    No. 4    December 1995

[PDF Download]        

    

MICROSTRUCTURE AND PROPERTIES OF Al2O3 sf/Al-1.5Mg COMPOSTITE MANUFACTURED BY EXTRUSION DIRECTLY FOLLOWING LIQUID INFILTRATION
Hu Lianxi; Luo Shoujing; Huo Wencan; Wang Zhongren

School of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001

Abstract:The microstructure and properties of short alumina fiber reinforced Al-1.5Mg composite(Al2O3sf/Al-1.5Mg) manufactured by extrusion directly following liquid infiltration (EDFLI) were experimentally investigated.It was found that the microstructure of Al2O3sf/Al-1.5Mg composite is characterized by a well-densified matrix,with fine recrystallized grains and free from microvoids and non-wetting defects,and quite uniformly and quasi unidirectionally distributed fibers maintaining adequate aspect ratios,which leads to a better strengthening effect.It was also found that the mechanical properties E,σ0.2b and the thermal expansion resistance of the composite simultaneously increase with the enhancement of the fiber volume fraction while the elongation δ is still maintained at a relative high level.Besides,the Al2O3sf/Al-1.5Mg composite possesses corrosion resistance equivalent to that of the Al-1.5Mg alloy.

 

Key words: Al2O3sf/Al-1.5Mg composite microstructure properties extrusion infiltration

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com