THERMITE RAIL WELDING WITH INOCULANTS
DOI:
https://doi.org/10.24867/15AM04DjuranovicKeywords:
thermite welding, nanoparticles, materials characterizationAbstract
In this paper, thermite welding of rails with and without inoculants was performed. Ultrasonic defectoscopy, metallographic analysis and hardness testing of the welds were performed. In all three samples, higher weld metal hardness was measured compared to the control sample. Generally, in the area of weld metal, the highest hardness was recorded in sample number one, which contains the smallest amount of added titanium dioxide TiO2 nanoparticles of 0,72 g. The main reason for this is the modification of microstructure related to the absence of intragranular idiomorphic ferrite in modified specimens.
References
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[2] M.J.M.M.Steenbergen, R.W. Van Bezooijen, „Rail welds, Delfi University of Technology“, Id Consultancy, Netherlands, 2017.
[3] https://www.elektro-thermit.de/en/rail-joining/thermitr-welding-processes/ (Pristupio –18.09.2021.)
[4] http://www.railsystem.net/thermit-welding/ (Pristupio – 20.06.2021.)
[5] D. Ilić, „Aluminotermijsko zavarivanje tračnica“, Završni rad, Sveučilište u Zagrebu fakultet strojarstva i brodogradnje, 2015.
[6] C.P. Londsdale, „Thermite rail welding: History, process developments, current practices and outlook for the 21st century“, Metallurgical Engineer Conrail Technical Services Labaratory, Altoona, USA, 2000.
[7] https://rails.arcelormittal.com/types-rails/transport-rails/european-standards/rail-s49-49e1 (Pristupio 21.09.2021)
[8] https://vts.edu.rs/wp-content/uploads/2017/11/4-TEHNOLO%C5%A0KA-ISPITIVANJA.pdf (Pristupio – 16.09.2021)
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Published
2021-11-06
Issue
Section
Mechanical Engineering
