Abstract
Scratch testing of 1.4microm Cu 50Ni 50 films deposited on stainless steel by ion beam assisted deposition at room temperature shows the excellent adhesion obtained by this method. During long-term room temperature ageing spontaneous decohesion in and along the scratch tracks occurs together with a decrease in the pin/disc friction coefficient. First TEM results on cross-sectional cuts of the interface reveal some precipitates in the coating corresponding to f.c.c. solid solution CuNi.
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