Details

Autor(en) / Beteiligte

• Kushnarev, A. V.
• Smirnov, L. A.
• Kirichkov, A. A.
• Dobuzhskaya, A. B.
• Khlyst, S. V.
• Kuzmichenko, V. M.
• Khlyst, I. S.
• Gontar’, A. V.
• Belokurova, E. V.

Titel

Development of an Innovative Digital Cooling Technology (Differential Heat Treatment) for EVRAZ NTMK Rails

Ist Teil von

• Steel in translation, 2020-06, Vol.50 (6), p.415-419

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• TEC-DT differential heat hardening technology is developed based on the process of digital control of air humidity by high-efficiency mixing of air flows and the water ejected by it. The wide-range cooling rate control (2–14°C/s) makes it possible to heat hardened rails made of different steels, such as carbon steels, with a wide range of carbon content, and microalloyed and alloyed steels, while achieving the level of properties required for rails of both general and special purposes (low-temperature reliability and increased wear resistance). The rails, differentially hardened by reheating, have a highly dispersed pearlite structure, and a high level of ductility, impact strength, fatigue strength, and survivability.