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

Baragetti, Sergio; Tordini, Federico

doi:10.1007/s00366-009-0167-9

Cited by 13 publications

(11 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a matter of fact, compressive stresses can keep cracks already present in the coating closed or prevent their formation. In [31], the benefit from having low coating elastic modulus was confirmed by applying Design and Analysis of Computer Experiments (DACE) to finite element models of coated smooth samples for rotating bending tests.…”

Section: Numerical Modelsmentioning

confidence: 99%

“…Nevertheless, further numerical and experimental studies would be important to shed light on the effects of thin hard coatings on the fatigue and the corrosion-fatigue resistance of coated components. Particularly, the effects produced by varying the deposition *Address correspondence to this author at the Department of Design and Technology, University of Bergamo, Viale Marconi 5, 24044 Dalmine, Italy; Tel: 0039-0352052382; Fax: 0039-0352052310; E-mail: sergio.baragetti@unibg.it process and coating parameters such as thickness and elastic modulus would deserve particular attention [24,31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of the Fatigue Behaviour of Components Coated with Thin Hard Corrosion-Resistant Coatings

Baragetti¹

2011

TOCORRJ

Self Cite

View full text Add to dashboard Cite

This paper provides a review of the state of the art on the study of the fatigue behaviour of mechanical components coated with thin hard corrosion-resistant coatings such as the physically or chemically vapour deposited ones. Some references address the experimental characterization of the fatigue resistance of coated steel and light alloys. Some coatings have been observed to prove effective against fatigue both in air and in aggressive environment. Numerical models and theoretical-numerical procedures have also been developed to shed light on the fatigue behaviour of coated components and to foresee the number of cycles until failure. As a matter of fact, the combination of good fatigue and anti-corrosion properties can significantly increase the performances of mechanical components operating in aggressive environments.

show abstract

Section: Numerical Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review of the Fatigue Behaviour of Components Coated with Thin Hard Corrosion-Resistant Coatings

Baragetti¹

2011

TOCORRJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…Unfortunately, up to now, there is no possibility to predict the rolling contact fatigue behaviour of PVDcoated steel gears based on numerical methods. 7 Hard coatings, such as diamond-like carbon (DLC) coatings, are one of the candidates for improving the surface durability of various kinds of machine elements. A DLC coating generally has the superior tribological properties of low friction and high wear resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, up to now, there is no possibility to predict the rolling contact fatigue behaviour of PVD-coated steel gears based on numerical methods. 7…”

Section: Introductionmentioning

confidence: 99%

The rolling contact fatigue of WC/C-coated spur gears

Michalczewski

Kalbarczyk

Piekoszewski

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

The aim of the study was to investigate the resistance to rolling contact fatigue of WC/C-coated gears. The WC/C lowfriction coating was deposited using the physical vapour deposition process by reactive sputtering. The investigation of rolling contact fatigue was realised by means of a back-to-back gear test rig using FZG PT C/10/90 method. Four material combinations of gears were tested: uncoated wheel and pinion, coated wheel and pinion, coated wheel and uncoated pinion, as well as uncoated wheel and coated pinion. The tests were performed for mineral gear oil of API GL-5 performance level and 80 W/90 viscosity grade. The test results indicate that the resistance to the pitting wear of coated gears depends not only on coating material but also on which gear is coated. To increase the fatigue life of gears, the coating should be deposited on the gear with the higher number of teeth. The mechanisms by which the fatigue life is extended are discussed.

show abstract

“…Thin hard coatings have positive influences on the fatigue and corrosion fatigue behaviours of the mechanical components, which justifies their uses in some critical systems such as automotive systems [2] and aeronautic systems [3]. Prior to the initiation of the research reported in this paper, it was found that there was a need to develop a more reliable, theoretical and numerical model for the analysis of coating surfaces in the gears, although some effort had been made on the analysis of the fatigue damages of the coated gears [4,5]. To-date, analysis of the coatings in engineering surfaces still largely relies on the uses of empirical formulas or is based on experience.…”

Section: Introductionmentioning

confidence: 99%

Investigation into initiation and propagation of cracks in the coated surfaces of spur gears with submodelling and irreversible cohesive-zone modelling techniques

2016

View full text Add to dashboard Cite

-Spur gears are one of the commonly used transmission parts in industry, due to its simplicity in structures and low cost in manufacturing. Due to a performance requirement, a spur gear may be coated with a specific coating arrangement. Under working conditions, the coating on the teeth may be damaged due to contact fatigue, in the forms such as micro-pitting and/or delamination. The failure mechanism of the coated surface under the gearing contact loading has been investigated intensively through experiment. A comprehensive computational model, which could be used to investigate the propagation of cracks in the coated surfaces, is still lacking. In the research reported in this paper, several finite element modelling techniques, including that for submodelling and irreversible cohesive zone modelling (CZM), have been developed to investigate the failure mechanisms of the coated surfaces of gears under the gearing contact fatigue loading. These techniques not only allow the localized stresses distribution and deformation in the interested locations in the coating and the substrate to be investigated in detail but also enable visual observation on the development of fatigue damages in the coating.

show abstract

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

Cited by 13 publications

References 21 publications

A Review of the Fatigue Behaviour of Components Coated with Thin Hard Corrosion-Resistant Coatings

A Review of the Fatigue Behaviour of Components Coated with Thin Hard Corrosion-Resistant Coatings

The rolling contact fatigue of WC/C-coated spur gears

Investigation into initiation and propagation of cracks in the coated surfaces of spur gears with submodelling and irreversible cohesive-zone modelling techniques

Contact Info

Product

Resources

About