Results 91 to 100 of about 5,511 (234)

Increasing the Reuse Potential of High‐Strength Steels by Extending the Fatigue Life through Surface Treatments

steel research international, EarlyView.
Surface reconditioning through mechanical and electrochemical polishing is shown to extend the fatigue life of predamaged 42CrMo4 steel by over 12 times. By removing ≈100 μm of surface material, surface‐driven fatigue damage is mitigated. This study introduces a reuse potential metric to evaluate fatigue recovery and support sustainable steel reuse. To
Ayush Shrivastava, Oguz Gulbay, Srinivasa Raghavan Raghuraman, Marion Kreins, Fabian Weber, Peter Starke, Alexander Gramlich, Ulrich Krupp   +7 more
wiley   +1 more source

Rail rolling contact fatigue formation and evolution with surface defects

, 2022
Surface defects can induce serious rolling contact fatigue (RCF) damage at wheel/rail interfaces and even cause fracture failure of rail material. This study aims to explore the formation mechanism of surface defects on rails, and to trace the evolution ...
QY Liu (8426502), Shuyue Zhang (11393954), J Guo (7052093), Qing Wu (9847022), WJ Wang (11611945), Maksym Spiryagin (9836759), HH Ding (11611942)   +6 more
core   +1 more source

Methodology to Detect Rail Corrugation from Vehicle On-Board Measurements by Isolating Effects from Other Sources of Excitation

Applied Sciences
Detecting track geometry and rail surface defects using on-board vehicle monitoring systems is a key issue for rail infrastructure managers to increase availability and reliability while reducing the costs associated with monitoring and maintenance. Rail
Anna De Rosa, Bernd Luber, Gabor Müller, Josef Fuchs   +3 more
doaj   +1 more source

Simulation study of thermally initiated rail defects [PDF]

Ultrasonically detected ‘squat type’ rail defects are becoming increasingly common on railways throughout the world. On the London Underground (LU) these defects are found on three lines.
Scott, D., Fletcher, D., Cardwell, B.J.
core   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

RSDNet: A New Multiscale Rail Surface Defect Detection Model

Sensors
The rapid and accurate identification of rail surface defects is critical to the maintenance and operational safety of the rail. For the problems of large-scale differences in rail surface defects and many small-scale defects, this paper proposes a rail ...
Jingyi Du, Ruibo Zhang, Rui Gao, Lei Nan, Yifan Bao   +4 more
doaj   +1 more source

Disc machine testing to assess the life of surface-damaged railway track

, 2001
Wheel-rail contacts operate in an arduous and contaminated environment. Railway track running surfaces can become damaged either prior to or during operation.
Gao, N., Grieve, D.G., Dwyer-Joyce, R.S.
core  

Investigation of the Reoxidation and Material Behavior of Directly Reduced Pellets and Fines Under Simulated Rail Transport Conditions

steel research international, EarlyView.
The study investigates the reoxidation behavior of DRI pellets (Midrex and H2‐reduced) under realistic conditions, considering the test parameters of temperature, humidity, storage duration, particle size (including fine fraction), and container geometry. The samples are analyzed based on mass changes.
Bernd Taferner, Johannes Schenk, Richard Schanner, Peter Gluschitz, Jan Eisbacher‐Lubensky   +4 more
wiley   +1 more source

Evaluating the long term impacts of transport policy: the case of passenger rail privatisation in Great Britain

, 2011
Britain’s national rail system was ‘privatised’ as a result of the 1993 Railways Act, with most of the organisational and ownership changes implemented by 1997.
Robins, Dawn
core  

Analyses of rail defects

, 2020
V začetnem delu diplomske naloge se seznanimo s tirnico, ki je posebno oblikovan jekleni nosilec, del zgornjega ustroja železniške proge in najpomembnejši element železniških tirov, ki opravlja funkcijo vodenja vozil in direktno prevzema prometne ...
Habjan, Tomaž
core