Properties of Porous FeAl Manufactured from Ball Milled Fe/Al Elemental Powders by Two-Step Sintering

Jing Lei Liu; Yuan Zhang He; Hong Xu; Xian Yong Ye

doi:10.4028/www.scientific.net/AMM.364.553

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 364Properties of Porous FeAl Manufactured from Ball...

Properties of Porous FeAl Manufactured from Ball Milled Fe/Al Elemental Powders by Two-Step Sintering

Abstract:

Porous FeAl was manufactured from ball milled Fe/Al elemental powders followed by medium temperature solid diffusion and high temperature sintering. Phase composition and porous structure were analyzed by XRD, SEM, Mercury Porosimeter and permeability test system. High temperature oxidation in air and high temperature sulfidation in SO₂(3v%)+N₂ at 600°C were carried out to investigate the behaviors of the porous FeAl, and the results were compared to 316L porous materials. The result showed that high sintering temperature hastened the transform of Fe₂Al₅ to FeAl intermatellic. The permeability of the porous FeAl increased and the most probable size decreased with sintering temperature. The porous FeAl had mass gains of 0.06% for air oxidation and 0.13% for sulphidation after 50 h at 600°C, compared with mass gains of 0.15% and 5.3% respectively of porous 316L stainless steel.

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Periodical:

Applied Mechanics and Materials (Volume 364)

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553-557

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.364.553

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Online since:

August 2013

Authors:

Jing Lei Liu, Yuan Zhang He, Hong Xu, Xian Yong Ye

Keywords:

FeAl Intermatellic, Oxidation, Porous Material, Sintering, Sulfidation

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