Effect of Vanadium on the Strength and Toughness of Wheel Steel at Different Reheat Temperatures
Abstract:
Microalloy element vanadium has different effects on the strength and toughness of wheel steel at different normalization temperatures. At lower reheat temperature, vanadium increases the low-temperature impact toughness notably. On the contrary, when reheated at higher temperature. V-bearing steel obtains a remarkably-improved strength. Therefore, for wheel steel, there exists a suitable temperature, at which vanadium addition improves strength and toughness at the same time, and accordingly an excellent combination property is reached. The phenomena above are closely connected with the dissolution and precipitation of V(C, N) in the steel.
Keywords:
wheel steel; V(C, N); strength and toughness; reheat temperature.
Author:
PAN Tao (1), CUI Yin-hui (2), SU Hang (1), ZHANG Yong-quan (1), YANG Cai-fu (1)
Affiiation
(I) Institute for Structural Materials, Central Iron & Steel Research Institute, Beijing 100081, China;
(2) Technology Center of Maanshan Iron & Steel Co., Ltd., Maanshan 243000, China
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Source:
Iron and Steel, Vol. 40, Supplement, November 2005, pp.161-165 (Vanitec Publication - V1105-5)
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