Synthesis and characterization of porous Fe–25 wt.% Al alloy with controllable pore structure

被引：0
|
作者：
P. Z. Shen
M. Song
Y. H. He
H. Y. Gao
J. Zou
N. P. Xu
B. Y. Huang
C. T. Liu
机构：
[1] Central South University,
[2] The University of Queensland,undefined
[3] Nanjing University of Technology,undefined
[4] The Hong Kong Polytechnic University,undefined
来源：
Powder Metallurgy and Metal Ceramics | 2010年 / 49卷
关键词：
intermetallics; powder metallurgy; iron aluminides; porous material;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Porous Fe–25 wt.% Al alloy is synthesized by reactive synthesis with Fe and Al powders as the raw materials. Various processing parameters such as the final sintering temperature, pressure during cold pressing, and powder size are investigated to control the pore structure of the alloy. It has been shown that the optimal final sintering temperature is around 950–1050°C. When the pressure is higher than 110 MPa, the variation of the pore structure is mainly caused by the change of the pore nature in the as-pressed compact. In addition, the pore structure of porous Fe–25 wt.% Al alloys depends on the size of the raw powders and the weight fraction of different-sized raw powders.
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页码：183 / 192
页数：9
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