Abstract
The article presents the effect of cold-rolling welded joints in railway lines on their mechanical and tribological properties. Welded joints of high-manganese Hadfield cast steel (L120G13) and normalized rail steel (R350HT) with austenitic steel coupling (X12CrNi17-7) were tested. The conducted tests allowed the hardness profile of the treated surfaces to be studied, as well as the wear resistance and coefficient of friction. The results were compared to the base materials and exhibited hardness enhancement in 80% of cold-rolled surfaces and, moreover, reduced abrasive wear resistance.
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