Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 37 |
| Seitenumfang | 10 |
| Fachzeitschrift | Tribology letters |
| Jahrgang | 59 |
| Ausgabenummer | 2 |
| Frühes Online-Datum | 11 Juli 2015 |
| Publikationsstatus | Veröffentlicht - 23 Aug. 2015 |
Abstract
Despite the ongoing debates on influence of hydrogen uptake and penetration in the steel, pulsed and extraordinary fatigue on white etching cracks (WEC) formation in bearing steel SAE52100, the present paper proposes an alternative hypothesis on electrothermal initiation of the WEC. The hypothesis points to differences between electrical and thermal properties of elements of steel microstructure that lead sequentially to redistribution of current, resistivity heating, thermal expansion and deformations of the carbide particle. Appearance of a nano-void is also predicted by the model in the cases of the martensite and the bainite structures. The model also predicts higher probability of the WEC formation for the bainitic steel.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Ingenieurwesen (insg.)
- Maschinenbau
- Physik und Astronomie (insg.)
- Oberflächen und Grenzflächen
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
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in: Tribology letters, Jahrgang 59, Nr. 2, 37, 23.08.2015.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - The Numerical Model of Electrothermal Deformations of Carbides in Bearing Steel as the Possible Cause of White Etching Cracks Initiation
AU - Ščepanskis, Mihails
AU - Jakovičs, Andris
AU - Kaldre, Imants
AU - Holweger, Walter
AU - Nacke, Bernard
AU - Diederichs, Annika Martina
PY - 2015/8/23
Y1 - 2015/8/23
N2 - Despite the ongoing debates on influence of hydrogen uptake and penetration in the steel, pulsed and extraordinary fatigue on white etching cracks (WEC) formation in bearing steel SAE52100, the present paper proposes an alternative hypothesis on electrothermal initiation of the WEC. The hypothesis points to differences between electrical and thermal properties of elements of steel microstructure that lead sequentially to redistribution of current, resistivity heating, thermal expansion and deformations of the carbide particle. Appearance of a nano-void is also predicted by the model in the cases of the martensite and the bainite structures. The model also predicts higher probability of the WEC formation for the bainitic steel.
AB - Despite the ongoing debates on influence of hydrogen uptake and penetration in the steel, pulsed and extraordinary fatigue on white etching cracks (WEC) formation in bearing steel SAE52100, the present paper proposes an alternative hypothesis on electrothermal initiation of the WEC. The hypothesis points to differences between electrical and thermal properties of elements of steel microstructure that lead sequentially to redistribution of current, resistivity heating, thermal expansion and deformations of the carbide particle. Appearance of a nano-void is also predicted by the model in the cases of the martensite and the bainite structures. The model also predicts higher probability of the WEC formation for the bainitic steel.
KW - Bearing
KW - Carbide
KW - Deformation
KW - Electric current
KW - Steel
KW - White etching cracks
UR - http://www.scopus.com/inward/record.url?scp=84937406605&partnerID=8YFLogxK
U2 - 10.1007/s11249-015-0564-8
DO - 10.1007/s11249-015-0564-8
M3 - Article
AN - SCOPUS:84937406605
VL - 59
JO - Tribology letters
JF - Tribology letters
SN - 1023-8883
IS - 2
M1 - 37
ER -