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

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 remov...

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Bibliographic Details
Published in:Steel in translation 2010-02, Vol.40 (2), p.181-183
Main Authors: Yur’ev, A. B., Mukhatdinov, N. Kh, Kozyrev, N. A., Korneva, L. V., Nikulina, A. L.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Hardness
Materials Science
Nonmetallic inclusions
Optimization
Rails
Structural steels
Translations
Weldability
Welded joints
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Summary: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.
ISSN:0967-0912
1935-0988
DOI:10.3103/S0967091210020191