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Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel

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Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel. / Jelina Rydel, J.; Toda-Caraballo, I.; Guetard, G.; Rivera-Díaz-del-Castillo, P.E.J.

In: International Journal of Fatigue, Vol. 108, 03.2018, p. 68-78.

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Jelina Rydel, J. ; Toda-Caraballo, I. ; Guetard, G. ; Rivera-Díaz-del-Castillo, P.E.J. / Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel. In: International Journal of Fatigue. 2018 ; Vol. 108. pp. 68-78.

Bibtex

@article{44b125b73f9448e2a41ca1d204a50b9e,
title = "Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel",
abstract = "Sub-surface initiated spalling remains a key factor in determining the ultimate life of properly maintained bearings. In its early stages, spalling is manifested by the development of cracks and accompanying microstructure alterations, so-called butterflies, around the microstructure inhomogeneities. Base upon a unique three-dimensional microscopic characterisation of a large population of butterflies in VIM-VAR M50 samples that underwent rolling contact fatigue under different experimental conditions, the key factors determining butterfly nucleation and growth has been identified. The work identifies the conditions for crack nucleation and growth, and quantitatively relates them to microstucture. The model encompasses the sub-surface stress field and the microstructural parameters of the material leading to crack growth. Outputs of numerical evaluation of the model show good agreement with experimental data concerning number density, depth distribution and size distribution of butterflies across the wide range of fatigue test conditions.",
keywords = "Modelling, Fatigue, Martensite, Carbides, Serial-sectioning",
author = "{Jelina Rydel}, J. and I. Toda-Caraballo and G. Guetard and P.E.J. Rivera-D{\'i}az-del-Castillo",
year = "2018",
month = mar,
doi = "10.1016/j.ijfatigue.2017.10.018",
language = "English",
volume = "108",
pages = "68--78",
journal = "International Journal of Fatigue",
issn = "0142-1123",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel

AU - Jelina Rydel, J.

AU - Toda-Caraballo, I.

AU - Guetard, G.

AU - Rivera-Díaz-del-Castillo, P.E.J.

PY - 2018/3

Y1 - 2018/3

N2 - Sub-surface initiated spalling remains a key factor in determining the ultimate life of properly maintained bearings. In its early stages, spalling is manifested by the development of cracks and accompanying microstructure alterations, so-called butterflies, around the microstructure inhomogeneities. Base upon a unique three-dimensional microscopic characterisation of a large population of butterflies in VIM-VAR M50 samples that underwent rolling contact fatigue under different experimental conditions, the key factors determining butterfly nucleation and growth has been identified. The work identifies the conditions for crack nucleation and growth, and quantitatively relates them to microstucture. The model encompasses the sub-surface stress field and the microstructural parameters of the material leading to crack growth. Outputs of numerical evaluation of the model show good agreement with experimental data concerning number density, depth distribution and size distribution of butterflies across the wide range of fatigue test conditions.

AB - Sub-surface initiated spalling remains a key factor in determining the ultimate life of properly maintained bearings. In its early stages, spalling is manifested by the development of cracks and accompanying microstructure alterations, so-called butterflies, around the microstructure inhomogeneities. Base upon a unique three-dimensional microscopic characterisation of a large population of butterflies in VIM-VAR M50 samples that underwent rolling contact fatigue under different experimental conditions, the key factors determining butterfly nucleation and growth has been identified. The work identifies the conditions for crack nucleation and growth, and quantitatively relates them to microstucture. The model encompasses the sub-surface stress field and the microstructural parameters of the material leading to crack growth. Outputs of numerical evaluation of the model show good agreement with experimental data concerning number density, depth distribution and size distribution of butterflies across the wide range of fatigue test conditions.

KW - Modelling

KW - Fatigue

KW - Martensite

KW - Carbides

KW - Serial-sectioning

U2 - 10.1016/j.ijfatigue.2017.10.018

DO - 10.1016/j.ijfatigue.2017.10.018

M3 - Journal article

VL - 108

SP - 68

EP - 78

JO - International Journal of Fatigue

JF - International Journal of Fatigue

SN - 0142-1123

ER -