Improving the reliability of welded joints in bulk-quenched electrosteel rail

Autor: N. Kh. Mukhatdinov, L. V. Korneva, N. A. Kozyrev, A. L. Nikulina, A. B. Yur’ev
Rok vydání: 2010
Předmět:
Zdroj: Steel in Translation. 40:181-183
ISSN: 1935-0988
0967-0912
DOI: 10.3103/s0967091210020191
Popis: Metallurgical methods of improving the reliability of the weld seam in bulk-quenched electrosteel rail are considered: optimization of the chemical composition in terms of the basic elements and total impurity content; improvement in plastic properties of the rail by reducing the hardness; and removal of nonmetallic inclusions from the steel. Instability is seen in the weldability of the rails and also in the composition, with the same set of mechanical properties. The need for improvement in welding technology is shown; without the elimination of existing problems, the weldability of electrosteel rail cannot be guaranteed.
Databáze: OpenAIRE
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