Numerical investigation on the rolling contact wear and fatigue of laser dispersed quenched U71Mn rail
The influences of laser dispersed quenching (LDQ) technology on the rolling contact wear
and fatigue of U71Mn rail were investigated numerically. Firstly, based on the improved …
and fatigue of U71Mn rail were investigated numerically. Firstly, based on the improved …
A new stress-based model to predict the fatigue life of 880-grade pearlitic rail steel under uniaxial ratcheting conditions
RK Yadav, KP Ajit - International Journal of Fatigue, 2023 - Elsevier
This work explores a comparative analysis to verify the applicability of the existing stress-
based model to predict life under ratcheting for pearlitic rail steel. The walker model is the …
based model to predict life under ratcheting for pearlitic rail steel. The walker model is the …
Use of the fatigue index to study rolling contact wear
FS Vicente, MP Guillamón - Wear, 2019 - Elsevier
Although both wear and fatigue are inevitably associated with the wheel/rail contact, they
are normally studied as different phenomena and both are commonly considered excluding …
are normally studied as different phenomena and both are commonly considered excluding …
Strain amplitude-dependent cyclic softening behavior of carbide-free bainitic rail steel: Experiments and modeling
Experimental investigations of Carbide-free bainite (CFB) rail steel under different strain
amplitudes are conducted to indicate the cyclic deformation feature and hysteresis loop …
amplitudes are conducted to indicate the cyclic deformation feature and hysteresis loop …
Microstructure and mechanical properties of the running band in a pearlitic rail steel: Comparison between biaxially deformed steel and field samples
The large deformations occurring in the surface layer of rail heads strongly influence the
material behavior. Cracks typically develop from this critical region. However, conventional …
material behavior. Cracks typically develop from this critical region. However, conventional …
An optimization design of contact interface material stiffness for improving the uniformity of the contact pressure
Q Lin, N Yang, J Hong, L Liu… - Journal of …, 2020 - asmedigitalcollection.asme.org
Material stiffness, a significant parameter of a contact interface, is investigated to improve the
uniformity of the contact pressure. A contact interface material stiffness optimization design …
uniformity of the contact pressure. A contact interface material stiffness optimization design …
FEA of mechanical behaviour of insulated rail joints due to vertical cyclic wheel loadings
Insulated rail joints (IRJs), safety critical components of railway track, are used to locate
trains and broken rails using electrical signalling systems. The bending rigidity of the rail at …
trains and broken rails using electrical signalling systems. The bending rigidity of the rail at …
Rail degradation due to thermite weld discontinuities: Field experience
M Messaadi, I Grossoni, P Shackleton… - Engineering Failure …, 2021 - Elsevier
This paper details the field-testing approach and results of thermite welds used in railway
applications. Rail steels made from R260 grades are welded by two different processes: the …
applications. Rail steels made from R260 grades are welded by two different processes: the …
Study on rolling contact fatigue crack initiation and propagation in U75V rail treated by laminar plasma
R Wang, Z Tan, Y Tian, J Zhang, Y Gao, A Shan… - Tribology …, 2024 - Elsevier
Surface discrete hardening by laminar plasma (HLP) enhances rail wear resistance by
rapidly quenching surfaces to form discrete martensitic zones. In comparative field tests on a …
rapidly quenching surfaces to form discrete martensitic zones. In comparative field tests on a …
[HTML][HTML] Ratcheting behaviour of Stellite 21 as laser cladding material for flange tip lift crossings repair
Laser cladding holds the promise to repair damaged rails, including flange tip lift crossings
(FTLC) in tram rails. In order to further understand the effectiveness of laser cladding against …
(FTLC) in tram rails. In order to further understand the effectiveness of laser cladding against …