Wear mechanisms of FeCo thin films were examined using a pin-on-disk d
evice. The various profiles of the tracks at different rotation rates
were related to the microstructure mainly studied by X-ray diffraction
(XRD) and transmission electron microscopy (TEM) observation on cross
-sections. The columnar structure of the films is shown to drastically
lead to a decohesion at the film-substrate interface at higher rotati
on rates. (C) 1997 Elsevier Science S.A.