scholarly journals Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Zhiqiang Li
Keyword(s):  
Fracture Toughness ◽  
Growth Rate ◽  
Fatigue Resistance ◽  
Compression Ratio ◽  
Contact Fatigue ◽  
Lamellar Spacing ◽  
Resistance Property ◽  
Close Relationship ◽  
Commercial Steel ◽  
Contact Fatigue Resistance

Contact fatigue resistance properties of four commercial steel rails were systematically studied and compared. The contact fatigue limit cycles, fracture toughness, and fatigue crack growth rate of the corresponding rails with different compression ratios were tested and analyzed, which showed a close relationship between them. Moreover, microstructures of the rails were carefully observed by using the TEM to elucidate the scientific mechanisms. Observations and obtained results indicated that pearlite lamellar spacing further decreased with the rise of compression ratio, which greatly and rightly contributed to the improved fatigue resistance property.

Influence of TiN coating thickness on the rolling contact fatigue resistance of austempered ductile iron

Wear ◽  
2016 ◽  
Vol 350-351 ◽  
pp. 82-88 ◽  
Author(s):  
Diego Alejandro Colombo ◽  
María Dolores Echeverría ◽  
Ricardo Cesar Dommarco ◽  
Juan Miguel Massone
Keyword(s):  
Fatigue Resistance ◽  
Coating Thickness ◽  
Ductile Iron ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Austempered Ductile Iron ◽  
Tin Coating ◽  
Contact Fatigue Resistance

Rolling contact fatigue resistance of PVD CrN and TiN coated austempered ductile iron

Wear ◽  
2013 ◽  
Vol 308 (1-2) ◽  
pp. 35-45 ◽  
Author(s):  
Diego Alejandro Colombo ◽  
María Dolores Echeverría ◽  
Sebastián Laino ◽  
Ricardo Cesar Dommarco ◽  
Juan Miguel Massone
Keyword(s):  
Fatigue Resistance ◽  
Ductile Iron ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Austempered Ductile Iron ◽  
Contact Fatigue Resistance

Estimation of rolling contact fatigue resistance of high-tempered 65Γ steel

2019 ◽  
Vol 12 (1) ◽  
pp. 47-57
Author(s):  
Taras Lenkovskiy ◽  
Artem Glazov ◽  
Roman Kovalchuk ◽  
Andriy Dzyubyk ◽  
Volodymyr Topilnytskyy ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Contact Fatigue Resistance

Scuffing and rolling contact fatigue resistance of discrete laser spot hardened austempered ductile iron

Wear ◽  
2019 ◽  
Vol 422-423 ◽  
pp. 100-107 ◽  
Author(s):  
Ann Zammit ◽  
Stephen Abela ◽  
John Charles Betts ◽  
Remigiusz Michalczewski ◽  
Marek Kalbarczyk ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Ductile Iron ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Laser Spot ◽  
Austempered Ductile Iron ◽  
Contact Fatigue Resistance

Steel Composition Effects on Grindability and Rolling Contact Fatigue Resistance of Bearing Steels

1985 ◽  
Vol 107 (4) ◽  
pp. 496-500 ◽  
Author(s):  
A. A. Torrance ◽  
R. J. Stokes ◽  
T. D. Howes
Keyword(s):  
Fatigue Resistance ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Steel Rolling ◽  
Aisi 52100 ◽  
Alternative Material ◽  
Aisi 52100 Steel ◽  
The Difference ◽  
Contact Fatigue Resistance

Measurements of the grindability of a bearing quality AISI 1070 steel show that it is far less susceptible to grinding burn than is AISI 52100 steel. Whereas the behavior in this respect of AISI 52100 steel has been shown to correlate well with Malkin’s thermal model, the behavior of the AISI 1070 material did not show such good correlation, even when the difference in thermal conductivity of the two materials was taken into account. It was shown, however, that the more empirically based model of Peters et al. could provide a useful prediction for AISI 1070 steel and subsequently also for the AISI 52100 steel. Rolling contact tests indicate that its fatigue resistance is as good as that of AISI 52100, so it would seem to merit serious consideration as a cheaper alternative material for mass produced bearings.

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