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. 22    No. 7    July 2012

[PDF Download]    [Flash Online]    

    

Microstructural examination and mechanical properties of replicated aluminium composite foams
Ekkapak WICHIANRAT1, Yuttanant BOONYONGMANEERAT2, Seksak ASAVAVISITHCHAI1

1. Department of Metallurgical Engineering, Faculty of Engineering, Chulalongkorn University,
Bangkok 10330, Thailand;
2. Metallurgy and Materials Science Research Institute (MMRI), Chulalongkorn University,
Bangkok 10330, Thailand

Abstract:Open-cell aluminium foams can be produced with the structural replication of dimensional accuracy from polymeric foam patterns through a pressure infiltration casting process. The strength of open-cell foam is much less than that of the closed-cell counterpart, and thereby subjects to mainly functional applications. An improvement in mechanical properties of the foams can be implemented with the addition of ceramic particles. In the present study, the composite foams were produced using AC3A alloy added with varying contents of SiC particles. The resultant foams have ceramic particles embedded in the alloy matrix and on the strut surface. Higher volume fraction of ceramic particles resulted in an increase in the compressive strength, energy absorption and microhardness of the foams. The improvement of these properties is due to the modification of the microstructure of the foams and the increased strength in the node and struts at which the ceramic particles reside.

 

Key words: aluminium; metallic foam; pressure infiltration; investment casting

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