Results 91 to 100 of about 468 (126)
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Impact Wear of Flash- and Aluminothermic-Welded Hypereutectoid Steel Rail Joints
Tribology Transactions, 2021High-speed, high-load railway development has necessitated a deeper understanding of the wear behavior and mechanism of welded steel railway joints subjected to repeated impact.
Wei Li +3 more
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Failure modes in aluminothermic rail welds under high axle load conditions
Engineering Failure Analysis, 2004Abstract Aluminothermic welding of rails is widely used within the railway industry for in-track welding during re-rail and defect replacement. The process provides flexibility and low capital cost, but suffers from variable quality in finished welds, due to the inherent limitations of the processes used, and their operator dependency.
P.J. Mutton, E.F. Alvarez
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Thermal Science and Engineering Progress, 2023
Ravi Govindram Kewalramani +3 more
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Ravi Govindram Kewalramani +3 more
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Aluminothermic welding modeling of heavy haul rails using the element birth and death technique
Journal of Thermal Stresses, 2022E. A. Lima +3 more
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Improving service properties of welded joints produced by aluminothermic welding
Welding International, 2014The results of metallographic studies of welded joints in rails produced by aluminothermic welding are presented. The results of hardness measurements of these welded joints show that the mean hardness level of the metal of the welded joint is 240–290 HV. According to the TU 0921-127-01124323-2005 standards, the hardness values do not fully satisfy the
V.A. Karguin +3 more
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Method of aluminothermic welds qualification for down conductors and earth-terminations systems
2013 International Symposium on Lightning Protection (XII SIPDA), 2013The IEC 62305-3 imposes the use of copper cables of at least 50 mm2 for down conductors used in lightning protection. The cross section is an important factor to carry lightning currents in LPS. However, it is possible to connect these conductors in various ways.
E. Leduc, B. Lo Crasto, B. Lavinaud
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A Model of Optimization and Control the Thermite Kit for Aluminothermic Welding
Solid State Phenomena, 2016Thermite welding (TW) is now widely used all over the world to weld, maintenance and modernization railway and tram rails [1]. The main materials from the thermite composition (TC), results from manufacturing scraps, which can be retrieved all over the country.
Mihai Branzei +3 more
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Measurement of Residual Stresses in Aluminothermic Rail Welds Using Neutron Diffraction Technique
Materials Science Forum, 2014It is understood that residual stresses in aluminothermic rail welds play an important role in the fatigue behaviour of the welds. Measuring the residual stresses in the critical areas and finding the correlation between these stresses and welding parameters can be useful in order to alter the welding procedure and improve the fatigue performance of ...
Bahar Khodabakhshi +3 more
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Industrial Lubrication and Tribology, 2020
Purpose The purpose of this paper is to present the results of a metallurgical, mechanical and tribological characterization of the weld and heat-affected zone (HAZ) of aluminothermic welding of premium rails used in heavy haul, looking into the origins of the squat defects associated with rail wear.
Luiz Henrique Dias Alves +4 more
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Purpose The purpose of this paper is to present the results of a metallurgical, mechanical and tribological characterization of the weld and heat-affected zone (HAZ) of aluminothermic welding of premium rails used in heavy haul, looking into the origins of the squat defects associated with rail wear.
Luiz Henrique Dias Alves +4 more
openaire +1 more source