Fatigue Behaviour of Corrosion Resistant Surface Thin Hard Coatings

Sergio Baragetti

doi:10.4028/www.scientific.net/AMR.38.271

Paper Titles

Corrosion Behavior of some Sintered CuNi Alloys – Preliminary Laboratory Data
p.229

Experimental Study of Propagation Stage of Pitting Corrosion of 20Cr13 Steel
p.238

Effect of Surface Nanocrystallization on the Acid Corrosion and Corrosion Inhibition of Low Carbon Steel
p.248

Microbial Contamination and Associated Corrosion in Fuels, during Storage, Distribution and Use
p.257

Fatigue Behaviour of Corrosion Resistant Surface Thin Hard Coatings
p.271

The Effect of Heat Treatment and Welding Parameters on the Corrosion Behaviour of a Friction Stir Welded 6056 Aluminium Alloy
p.285

Corrosion Control of Friction Stir Welded Aluminium Airframe Alloy
p.298

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Fatigue Behaviour of Corrosion Resistant Surface Thin Hard Coatings

Abstract:

Corrosion resistance of metal components and structures can be improved by using thin hard coatings. Among the coatings recently developed the PVD coatings act as good corrosion barrier and enable to increase the surface hardness and wear resistance of the coated components. Appropriately designed PVD coatings can increase the fatigue resistance of mechanical components too and would enable to enhance the mechanical behaviour in aggressive environments. In this paper the fatigue behaviour of corrosion resistant surface thin hard coatings is studied. A survey of recent fatigue test results on steel and light alloys, on coated and uncoated, smooth and notched specimens, is reported. A numerical procedure to foresee the number of cycle to failure of coated components is described and applied to spur gears.