Abrasive wear behavior of Al–Cu–Fe quasicrystalline composite coatings

Quasicrystals are a relatively new class of materials which exhibit unusual atomic structure and useful physical and chemical properties. The inherent brittleness of quasicrystals has limited their potential use to primarily surface coating applications. This study examined the effect on abrasive we...

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Bibliographic Details
Published in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 255; no. 1; pp. 54 - 65
Main Authors:	Sordelet, D.J., Besser, M.F., Logsdon, J.L.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 31-10-1998 Elsevier
Subjects:	Abrasive wear behavior Al–Cu–Fe quasicrystalline Applied sciences Atomic structure Brittleness Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Hardness Mechanical and acoustical properties of condensed matter Mechanical properties of solids Metals. Metallurgy Physics Quasicrystals Tribology and hardness Wear mode Al–Cu–Fe quasicrystalline Wear mode Quasicrystals Atomic structure Brittleness Abrasive wear behavior Hardness Vickers hardness Aluminium base alloys Spray coatings Ternary alloys Brittle material Iron alloys Wear mechanisms Experimental study Abrasive wear Composite coating Copper alloys Plasma arc spraying Wear resistance SEM Microstructure
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Summary:	Quasicrystals are a relatively new class of materials which exhibit unusual atomic structure and useful physical and chemical properties. The inherent brittleness of quasicrystals has limited their potential use to primarily surface coating applications. This study examined the effect on abrasive wear behavior of Al–Cu–Fe quasicrystalline coatings through the addition (e.g. 0–100 v/o) of a relatively ductile Fe–Al phase. Coatings were deposited by plasma arc spraying techniques. The incorporation of discrete Fe–Al particles into the quasicrystalline coating matrix improves the abrasive wear resistance. Moreover, it is observed that low-level additions of the Fe–Al phase (e.g. 1 v/o) produce the most abrasive wear-resistant coating. The wear behavior of the quasicrystalline and composite coatings is discussed in terms of wear mode and coating hardness.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0921-5093 1873-4936
DOI:	10.1016/S0921-5093(98)00778-3