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

Autor:	A. V. Kushnarev, I. S. Khlyst, A. B. Dobuzhskaya, S. V. Khlyst, A. A. Kirichkov, A. V. Gontar, V. M. Kuzmichenko, E. V. Belokurova, Smirnov Leonid A
Rok vydání:	2020
Předmět:	Materials science chemistry Differential heat treatment Metallurgy Mixing (process engineering) Hardening (metallurgy) chemistry.chemical_element General Materials Science Izod impact strength test Pearlite Ductility Fatigue limit Carbon
Zdroj:	Steel in Translation. 50:415-419
ISSN:	1935-0988 0967-0912
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4a1e589beacb1a4bf61a0312506a193f https://doi.org/10.3103/s0967091220060042 Zobrazit plný text záznamu Full text from SpringerLink