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

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中國有色金屬學(xué)報(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 22 No. 1 January 2012

Preparation of open-celled aluminum foams by
counter-gravity infiltration casting

HUO Deng-wei, YANG Juan, ZHOU Xiang-yang, WANG Hui, ZHANG Tai-kang

（School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China）

Abstract:A novel counter-gravity infiltration casting device and corresponding fabricating process for producing open-celled aluminum foams were presented. The experimental results show that defects such as insufficient or excessive infiltrating can hardly be found in the foam samples prepared by counter-gravity infiltration casting. The foam materials exhibit excellent mechanical properties. The void content strongly affects the mechanical properties of aluminum foams. The yield stress and plateau stress significantly increase with the decrease of void content. Raising pre-heating temperature and increasing packing pressure are effective to lower the void content in aluminum foams.

Key words: open-celled aluminum foams; counter-gravity infiltration casting; void content; mechanical properties

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

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

主管：中國科學(xué)技術(shù)協(xié)會主辦：中國有色金屬學(xué)會承辦：中南大學(xué)
湘ICP備09001153號版權(quán)所有：《中國有色金屬學(xué)報》編輯部
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