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Title: On the mechanical and tribological behavior of Al3Mg2 complex metallic alloys as bulk material and as coating
Authors: Achanta, Satish ×
Feuerbacher, M.
Grishin, A.
Ye, Xingpu
Celis, Jean-Pierre #
Issue Date: Nov-2010
Publisher: Elsevier Applied Science
Series Title: Intermetallics vol:18 issue:11 pages:2096-2104
Abstract: New materials with tunable physical, mechanical, chemical, and thermal properties are attractive for
many applications and stand as prospective substitutes for the existing engineering materials. In that
respect, complex metallic alloys (CMA) have recently demonstrated promising traits where a myriad of
physical, mechanical, chemical properties can be obtained by altering the structure. CMA’s have a large
crystal size with thousands of atoms per unit cell. In this work, some mechanical properties and tribological
behavior of Al3Mg2 based CMA are discussed. The surface characterization, deformation mode,
mechanical and tribological properties of bulk and thin film Al3Mg2 materials are investigated, and
compared with existing engineering materials. The results revealed a contrasting tribological behavior of
Al3Mg2 when used as either bulk material or as coating. Al3Mg2 coatings act as a low friction solid
lubricant under certain conditions, with a coefficient of friction comparable to that of diamond-like
carbon coatings. It is suggested that the quasi-crystalline nature of Al3Mg2-coatings renders the surface
stiff and that the characteristics of the wear debris generated are responsible for the low friction
behavior.
ISSN: 0966-9795
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
Chemical and Extractive Metallurgy Section (-)
× corresponding author
# (joint) last author

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