Journal ArticleDOI
Comprehensive analysis of effects of dynamic load frequency and hydrogenation to instigate White Etching Areas (WEAs) formation under severe sliding condition of bearing steel
Kodoor Sreeraj,P. Ramkumar +1 more
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TLDR
In this article, the effect of loading frequency and hydrogenation to instigate the white etching areas (WEAs) formation under severe sliding condition of bearing steel was investigated. And quantitative insights on the catalysing behaviour of individual and concurrent actions of drivers were elucidated.About:
This article is published in Tribology International.The article was published on 2020-04-01. It has received 14 citations till now.read more
Citations
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Journal ArticleDOI
Broad review of “White Etching Crack” failure in wind turbine gearbox bearings: Main factors and experimental investigations
Fernando José López-Uruñuela,Beatriz Fernández-Díaz,Francesco Pagano,A. López-Ortega,Bihotz Pinedo,R. Bayón,Josu Aguirrebeitia +6 more
TL;DR: A broad insight of the effect of each driver in WEC formation is presented and an undisclosed hypothesis related to WEC initiation is suggested in this paper, which may be concluded that in the majority of the tests where WEC has been generated, three drivers usually appear and act synergistically: non-metallic inclusions, sliding and hydrogen.
Journal ArticleDOI
Revealing the shear band origin of white etching area in rolling contact fatigue of bearing steel
TL;DR: In this article, the authors investigated the origin and formation mechanism of the white etching area (WEA) and the shear band (SB) under rolling contact fatigue and showed that both the WEA and the SB can be the common responses under shear plastic deformation in bearing steel.
Journal ArticleDOI
Early stages of subsurface crack and WEC formation in 100Cr6 bearing steel under RCF and hydrogen influence
TL;DR: In this paper , a disc-on-disc tribometer was used to study the early stages of crack formation that, with cycling, eventually generate WEC or WSF. But the authors focused on the formation of WEAs, the initiation and propagation of cracks and the influence of defects in steel, and the mechanisms by which hydrogen favours the development of cracks.
Journal ArticleDOI
Early stages of subsurface crack and WEC formation in 100Cr6 bearing steel under RCF and hydrogen influence
TL;DR: In this paper, a disc-on-disc tribometer was used to study the early stages of crack formation that, with cycling, eventually generate WEC or WSF. But the authors focused on the formation of WEAs, the initiation and propagation of cracks and the influence of defects in steel, and the mechanisms by which hydrogen favours the development of cracks.
Journal ArticleDOI
White etching structures in annealed 52100 bearing steel arising from high-pressure torsion tests
TL;DR: In this article, a technique was selected to produce white etching structures in annealed AISI 52100 rolling bearings with the presence of severe plastic deformation conditions, which can be achieved by high pressure tension tests.
References
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Journal ArticleDOI
White structure flaking (WSF) in wind turbine gearbox bearings: effects of ‘butterflies’ and white etching cracks (WECs)
TL;DR: In this article, a review of white structure flaking (WSF) in wind turbine gearboxes is presented, highlighting the severe transient, cyclic loading and tribochemical operating conditions of gearbox bearings and explains how these may act as drivers to produce WSF.
Journal ArticleDOI
Understanding and mitigating hydrogen embrittlement of steels: a review of experimental, modelling and design progress from atomistic to continuum.
Olga Barrera,Olga Barrera,David Bombač,Yi-Sheng Chen,Thomas D. Daff,Enrique I. Galindo-Nava,Peng Gong,Daniel Haley,Robert M. Horton,Ivaylo H. Katzarov,James R. Kermode,Chiara Liverani,Miles Alexander Stopher,Francis Sweeney +13 more
TL;DR: The effect of hydrogen in steels from the atomistic to the continuum scale is described by reporting theoretical evidence supported by quantum calculation and modern experimental characterisation methods, macroscopic effects that influence the mechanical properties of Steels and established damaging mechanisms for the embrittlement of steels.
Journal ArticleDOI
TEM/SEM investigation of microstructural changes within the white etching area under rolling contact fatigue and 3-D crack reconstruction by focused ion beam
TL;DR: In this article, the white etching area (WEA) surrounding the cracks formed under high-cycle rolling contact fatigue was investigated by transmission electron microscopy (TEM) and dual beam (SEM)/focused ion beam).
Journal ArticleDOI
Numerical simulations of hydrogen-dislocation interactions in fcc stainless steels. . part I: hydrogen-dislocation interactions in bulk crystals
TL;DR: In this paper, a numerical simulation method for the coupling between stress and hydrogen diffusion is proposed, based on the diffusion equation including a hydrostatic stress gradient term, and on a discretisation of the hydrogen concentration field.
Journal ArticleDOI
Effect of hydrogen on butterfly and white etching crack (WEC) formation under rolling contact fatigue (RCF)
TL;DR: In this paper, the influence of the concentration of diffusible hydrogen, the magnitude of the contact load and the number of rolling cycles on the formation of white etching features (butterflies, WEA/WECs) was determined by a serial sectioning process.
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