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Wear behaviour of PM Fe-based composite reinforced with mechanically alloyed Fe3Al intermetallics particles
Published in
2004
Volume: 2004
   
Pages: 580 - 583
Abstract
The wear behaviour of a sintered Fe-based alloy reinforced with mechanically alloyed intermetallic has been studied using pin-on-disk wear testing machine in dry condition. A sintered iron alloy made by powder metallurgy was used as matrix. The intermetallics Fe3Al particles prepared by mechanically alloying (15 hours) have been used as reinforcement (5-10%). The processing of the composites includes mixing and cold compacting followed by sintering at 1120°C in Nitrogen atmosphere. The presence and distribution of intermetallic Fe3́Al phase on the surfaces were identified with optical microscopy and further confirmed by XRD. The influence of mechanically alloyed Fe3Al intermetallics additions on the wear behaviour was studied with different sliding conditions. The experimental results indicate that improvement in wear properties in MMCs compared to plain sintered steel as standard material. Wear tracks were characterised by SEM techniques. Studies reveal that unreinforced sintered steel shows lower wear resistance, while composites with mechanically alloyed Fe3Al are the most wear resistant. Copyright © 2004 by Society for Advancement of Heat Treatment & Surface Engineering (SAHTSE).
About the journal
JournalProceedings of the International Conference on Advances in Surface Treatment: Research and Applications, ASTRA
Open AccessNo
Concepts (10)
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    INTERMETALLICS
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    Iron
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    Iron alloys
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    Optical microscopy
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    Scanning electron microscopy
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    Wear resistance
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    FE-BASED COMPOSITES
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    NITROGEN ATMOSPHERE
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    PIN-ON-DISK WEAR TESTING
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    Composite materials