Abstract
The wear and friction of ion beam mixed Fe–Ti alloys on AISI 304 stainless steel were measured under dry sliding conditions over the composition range 0%–100% Ti. Samples with linearly varying composition in the lateral direction were used together with a reciprocal pin‐on‐plate motion and hardened Cr‐steel pin. A reduction of the friction coefficient of better than 50% was observed in the low friction area around the equal atomic composition as compared to the pure stainless‐steel substrate. In all cases the friction coefficient had the maximum value at the Ti‐rich end. Increasing the load from 16.8 to 50.3 g slightly decreased the concentration range of the low friction region. Debris particle production during wear of the pure stainless‐steel surface was also remarkably reduced on ion beam mixed samples. Studies of the wear tracks using scanning electron microscopy and profilometer indicate significant changes in the sliding mechanism.
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