Mechanical And Corrosion Behavior Of In-Situ Particulates (Al2o3, Tib2, Tic) Reinforced Fe-Al Intermetallic Composites
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Date
2010-08
Authors
Tran, Duc Huy
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
The purpose of this study is to synthesize iron aluminide intermetallic composite
with in situ particulates (Al2O3, TiB2, TiC). Powder metallurgy method was used in this
work to produce iron aluminide solid solution as matrix by mechanical alloying. It was
found that mechanical alloying process plays a significant role in solid solution
formation and later on the mechanical properties. The optimum conditions to produce
iron aluminide composite in this particular work are: (1) milling time is 10 h at speed of
300 rpm, (2) consolidation by hydraulic press at 350 MPa and (3) sintering at 1300 oC
for 1 h. Matrix of iron aluminide can form Fe3Al or FeAl depending on the Al
concentration. The in situ particulate of Al2O3, TiB2 and TiC were formed during
sintering with average particles size of 2 μm, 1μm and 3μm, respectively, and they were
uniformly distributed in the matrix.
Description
Keywords
Corrosion Behavior Of In-Situ Particulates (Al2o3, Tib2, Tic) , Reinforced Fe-Al Intermetallic Composites