NDLI: A numerical study on the fatigue and rolling contact fatigue behaviour of PVD-coated steel and titanium spur gears

Content Provider	Springer Nature Link
Author	Baragetti, Sergio Tordini, Federico
Copyright Year	2009
Abstract	Thin hard coatings deposited with physical vapor deposition (PVD) can enhance both the fatigue and the rolling contact fatigue resistance of mechanical components. In this work a cheap and fast way to evaluate the best parameter levels of coating and bulk material is proposed. Design of Experiments (DoE) was applied to the numerical results obtained from the simulation of meshing PVD-coated spur gears. Preliminary analyses were performed to assess the fatigue behaviour of PVD-coated standard specimens for rotating bending tests. The coating elastic modulus and thickness, and the trend of the residual stresses induced by the deposition process were considered among the variables affecting the fatigue and the rolling contact fatigue behaviour. Different bulk materials, including steel and titanium alloys, were analyzed. The proposed method may help to define the optimal coating design, especially when the replacement of traditional steels with light alloys constitutes a goal that is strongly recommended.
Starting Page	127
Ending Page	137
Page Count	11
File Format	PDF
ISSN	01770667
Journal	Engineering with Computers
Volume Number	27
Issue Number	2
e-ISSN	14355663
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-12-02
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PVD coatings Steel/titanium spur gears Fatigue/rolling contact fatigue Residual stresses Parameter optimization ApplicationMathematics/Computational Methods of Engineering Mechanics Math. Applications in Chemistry Computer-Aided Engineering (CAD, CAE) and Design Systems Theory, Control Calculus of Variations and Optimal Control; Optimization
Content Type	Text
Resource Type	Article
Subject	Engineering Computer Science Applications Modeling and Simulation Software

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Fatigue Resistance of Thin Hard Coated Spur Gears

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