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Influence of hot-reduction parameters on the steel austenite structure of a railway wheel

Vakulenko I., Bolotova D., Perkov O., Lisniak A.

Zeszyty Naukowe. Transport / Politechnika Śląska

2016

z. 93

141--148

The formation of grain structures with boundaries similar to substructures is one of the factors contributing to grain refinement in hot-reduction carbon steel. At the forming of a rim, the slight cooling-down (100-150°С) of the surface volumes is sufficient to increase their strength characteristics. After that, an increase in the magnitude of the hot-hardening of metal in the central rim volumes will lead to the formation of a more uniform fine-grain austenite structure over the rim section.