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Abstract:
The microstructures of the Fe-based alloy laser cladding layer were characterized by optical microscope, scanning electron microscope and X-ray diffractometer. The load-bearing performance was evaluated and compared with that of the U75V rail. 3D finite element modelling was performed using the ANSYS software. It is found that the phases of the coating are α-Fe, Fe-Cr, Ni-Cr-Fe and Fe2B, Fe3Si precipitates. The average microhardness of the coating can reach HV455.2, which is higher than that of the heat affected zone (HAZ) and the substrate. The coating can effectively reduce the wear and rolling contact fatigue of heavy-haul rail. © 2022 Elsevier Ltd
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International Journal of Fatigue
ISSN: 0142-1123
Year: 2022
Volume: 165
6 . 0
JCR@2022
6 . 0 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:66
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
SCOPUS Cited Count: 14
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
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