Fatigue process

Adhesive wear. Adhesive wear occurs because of adhesion at asperity contacts at the interface. These contacts are sheared by sliding which may result in detachment of a fragment from one surface to another surface. Some are fractured by a fatigue process during repeated loading and unloading, resulting in formation of loose particles. 

The creation of new surface state, of which characteristics can be tailored, has a significant implication in controlling surface defects of materials, which act as the initiation sites of the fatigue process. In view of the fact that most materials fail due to fatigue, the retardation or possible prevention of the initiation of fatigue is a very important and unique advantage of LCVD. 

G. Baillet, G. Giusti, and R. Guglielmetti, Study of the fatigue process and the yellowing of polymeric films containing spirooxazine photochromic compounds, Bull. Chem. Soc. Jpti. 68, 1220-1225 (1995). 

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