Analysis of softening zone on the surface of 20Mn2SiCrMo bainitic railway switch
Source abstract
Abstract
Abstract The surface softening phenomenon of 20Mn2SiCrMo railway switch was studied using lab scale thermal simulation experiments followed by hardness measurement and macroscopic characterization. The thermal simulation experiments successfully reproduced the softening behavior observed in real manufacture processes. The softening zone formation mechanism is revealed by the comparison between thermal simulation experiments and real rail analysis under a series of inducting heating temperatures at different measurement locations. It is also found that the width of softening zone is related to induction heating temperature and cooling rate.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Adhesion, Friction, and Surface Interactions · Gear and Bearing Dynamics Analysis · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
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1. Innovation in rail steel
2. Advanced rail steels, investigating the bainitic opinion
3. Sawley K. The development of bainitic steels for special railway system requirement. In: 39th MWSP conf. proc. ISS, vol. XXXV; 1998. p. 1007–14.
4. Kern A. The development of bainitic steels for special railway system requirement. In: 39th MWSP conf. proc. ISS, vol. XXXV, 1998. p. 1015–21.
5. Mechanical properties and wear performance of premium rail steels10.1016/j.wear.2006.12.021 ↗
6. Mechanical and fracture behavior of bainitic steel10.1016/j.jmatprotec.2004.04.073 ↗
7. Unlubricated sliding and rolling/sliding wear behavior of continuously cooled, low/medium carbon bainitic steels10.1016/S0043-1648(96)07249-3 ↗
8. Effect of microstructure on rolling/sliding wear of low carbon bainitic steels10.1016/S0043-1648(96)07271-7 ↗
9. High strength bainitic steel rails for heavy haul railways with superior damage resistance
10. Jerath V, Bhadeshia HKDH. Improvements in and relating to carbide-free bainitic steels and methods of producing such steels. British patent 9501097; 1995 Feb 20.
11. Effect of the angle of attack on flaking behavior in pearlitic and bainitic steel rails10.1016/S0043-1648(02)00083-2 ↗
12. Development of bainitic rail steels with potential resistance to rolling contact fatigue10.1046/j.1460-2695.2003.00671.x ↗
13. Mechanical and fracture behavior of bainitic steel10.1016/j.jmatprotec.2004.04.073 ↗
14. Effect of hydrogen on the properties of bainitic steel crossing10.1016/j.engfailanal.2008.09.019 ↗
15. Microstructure of the worn surface of a bainitic steel railway crossing10.1016/j.wear.2010.01.016 ↗
16. Rolling contact and adhesive wear of bainitic and pearlitic steels in low load regime10.1016/j.wear.2010.10.009 ↗
17. Investigation of rolling contact crack initiation in bainitic and pearlitic rail steels10.1111/j.1460-2695.2012.01686.x ↗
18. Karl-Erik · 1984
19. Alloy design of 1500MPa grade economical bainite/martensite duplex phase steel
20. Evolution of microstructural banding during the manufacturing process of dual phase steels10.2320/matertrans.47.2269 ↗
21. Effects of alloying elements on the microstructures and mechanical properties of heavy section ductile cast iron
22. Frank · 1984